id	sid	tid	token	lemma	pos
dss-287	1	1	microsoft	microsoft	PROPN
dss-287	1	2	word	word	PROPN
dss-287	1	3	review	review	PROPN
dss-287	1	4	of	of	ADP
dss-287	1	5	design	design	NOUN
dss-287	1	6	parameters	parameter	NOUN
dss-287	1	7	and	and	CCONJ
dss-287	1	8	optical	optical	ADJ
dss-287	1	9	characteristics	characteristic	NOUN
dss-287	1	10	of	of	ADP
dss-287	1	11	main	main	ADJ
dss-287	1	12	types	type	NOUN
dss-287	1	13	of	of	ADP
dss-287	1	14	amateur	amateur	ADJ
dss-287	1	15	telescopes	telescope	NOUN
dss-287	1	16	(	(	PUNCT
dss-287	1	17	online	online	ADJ
dss-287	1	18	)	)	PUNCT
dss-287	1	19	issn	issn	PROPN
dss-287	1	20	2744	2744	NUM
dss-287	1	21	-	-	SYM
dss-287	1	22	1741	1741	NUM
dss-287	1	23	defense	defense	NOUN
dss-287	1	24	and	and	CCONJ
dss-287	1	25	security	security	NOUN
dss-287	1	26	studies	study	NOUN
dss-287	1	27	original	original	ADJ
dss-287	1	28	research	research	NOUN
dss-287	1	29	vol	vol	NOUN
dss-287	1	30	.	.	PROPN
dss-287	2	1	6	6	NUM
dss-287	2	2	,	,	PUNCT
dss-287	2	3	no	no	INTJ
dss-287	2	4	.	.	NOUN
dss-287	2	5	1	1	NUM
dss-287	2	6	,	,	PUNCT
dss-287	2	7	2025	2025	NUM
dss-287	2	8	,	,	PUNCT
dss-287	2	9	pp.49	pp.49	NOUN
dss-287	2	10	-	-	SYM
dss-287	2	11	90	90	NUM
dss-287	2	12	https://doi.org/10.37868/dss.v6.id287	https://doi.org/10.37868/dss.v6.id287	NOUN
dss-287	2	13	this	this	DET
dss-287	2	14	work	work	NOUN
dss-287	2	15	is	be	AUX
dss-287	2	16	licensed	license	VERB
dss-287	2	17	under	under	ADP
dss-287	2	18	a	a	DET
dss-287	2	19	creative	creative	ADJ
dss-287	2	20	commons	common	NOUN
dss-287	2	21	attribution	attribution	NOUN
dss-287	2	22	license	license	NOUN
dss-287	2	23	(	(	PUNCT
dss-287	2	24	https://creativecommons.org/licenses/by/4.0/	https://creativecommons.org/licenses/by/4.0/	PROPN
dss-287	2	25	)	)	PUNCT
dss-287	2	26	that	that	PRON
dss-287	2	27	allows	allow	VERB
dss-287	2	28	others	other	NOUN
dss-287	2	29	to	to	PART
dss-287	2	30	share	share	VERB
dss-287	2	31	and	and	CCONJ
dss-287	2	32	adapt	adapt	VERB
dss-287	2	33	the	the	DET
dss-287	2	34	material	material	NOUN
dss-287	2	35	for	for	ADP
dss-287	2	36	any	any	DET
dss-287	2	37	purpose	purpose	NOUN
dss-287	2	38	(	(	PUNCT
dss-287	2	39	even	even	ADV
dss-287	2	40	commercially	commercially	ADV
dss-287	2	41	)	)	PUNCT
dss-287	2	42	,	,	PUNCT
dss-287	2	43	in	in	ADP
dss-287	2	44	any	any	DET
dss-287	2	45	medium	medium	NOUN
dss-287	2	46	with	with	ADP
dss-287	2	47	an	an	DET
dss-287	2	48	acknowledgement	acknowledgement	NOUN
dss-287	2	49	of	of	ADP
dss-287	2	50	the	the	DET
dss-287	2	51	work	work	NOUN
dss-287	2	52	's	's	PART
dss-287	2	53	authorship	authorship	NOUN
dss-287	2	54	and	and	CCONJ
dss-287	2	55	initial	initial	ADJ
dss-287	2	56	publication	publication	NOUN
dss-287	2	57	in	in	ADP
dss-287	2	58	this	this	DET
dss-287	2	59	journal	journal	NOUN
dss-287	2	60	.	.	PUNCT
dss-287	3	1	49	49	NUM
dss-287	3	2	review	review	NOUN
dss-287	3	3	of	of	ADP
dss-287	3	4	design	design	NOUN
dss-287	3	5	parameters	parameter	NOUN
dss-287	3	6	and	and	CCONJ
dss-287	3	7	optical	optical	ADJ
dss-287	3	8	characteristics	characteristic	NOUN
dss-287	3	9	of	of	ADP
dss-287	3	10	the	the	DET
dss-287	3	11	main	main	ADJ
dss-287	3	12	types	type	NOUN
dss-287	3	13	of	of	ADP
dss-287	3	14	amateur	amateur	ADJ
dss-287	3	15	telescopes	telescope	NOUN
dss-287	3	16	alan	alan	PROPN
dss-287	3	17	ćatović*1	ćatović*1	PROPN
dss-287	3	18	,	,	PUNCT
dss-287	3	19	džan	džan	PROPN
dss-287	3	20	jašarević1	jašarević1	NOUN
dss-287	3	21	1	1	NUM
dss-287	3	22	mechanical	mechanical	ADJ
dss-287	3	23	engineering	engineering	NOUN
dss-287	3	24	faculty	faculty	NOUN
dss-287	3	25	,	,	PUNCT
dss-287	3	26	university	university	NOUN
dss-287	3	27	of	of	ADP
dss-287	3	28	sarajevo	sarajevo	PROPN
dss-287	3	29	,	,	PUNCT
dss-287	3	30	bosnia	bosnia	PROPN
dss-287	3	31	and	and	CCONJ
dss-287	3	32	herzegovina	herzegovina	PROPN
dss-287	3	33	*	*	PUNCT
dss-287	3	34	corresponding	correspond	VERB
dss-287	3	35	author	author	NOUN
dss-287	3	36	e	e	NOUN
dss-287	3	37	-	-	NOUN
dss-287	3	38	mail	mail	NOUN
dss-287	3	39	:	:	PUNCT
dss-287	3	40	catovic@mef.unsa.ba	catovic@mef.unsa.ba	NOUN
dss-287	3	41	received	receive	VERB
dss-287	3	42	:	:	PUNCT
dss-287	3	43	mar	mar	PROPN
dss-287	3	44	.	.	PROPN
dss-287	3	45	30	30	NUM
dss-287	3	46	,	,	PUNCT
dss-287	3	47	2025	2025	NUM
dss-287	3	48	revised	revise	VERB
dss-287	3	49	:	:	PUNCT
dss-287	3	50	may	may	AUX
dss-287	3	51	20	20	NUM
dss-287	3	52	,	,	PUNCT
dss-287	3	53	2025	2025	NUM
dss-287	3	54	accepted	accept	VERB
dss-287	3	55	:	:	PUNCT
dss-287	3	56	may	may	AUX
dss-287	3	57	25	25	NUM
dss-287	3	58	,	,	PUNCT
dss-287	3	59	2025	2025	NUM
dss-287	3	60	online	online	NOUN
dss-287	3	61	:	:	PUNCT
dss-287	3	62	may	may	AUX
dss-287	3	63	27	27	NUM
dss-287	3	64	,	,	PUNCT
dss-287	3	65	2025	2025	NUM
dss-287	3	66	abstract	abstract	NOUN
dss-287	3	67	this	this	DET
dss-287	3	68	review	review	NOUN
dss-287	3	69	examines	examine	VERB
dss-287	3	70	the	the	DET
dss-287	3	71	design	design	NOUN
dss-287	3	72	principles	principle	NOUN
dss-287	3	73	and	and	CCONJ
dss-287	3	74	image	image	NOUN
dss-287	3	75	quality	quality	NOUN
dss-287	3	76	performance	performance	NOUN
dss-287	3	77	of	of	ADP
dss-287	3	78	the	the	DET
dss-287	3	79	three	three	NUM
dss-287	3	80	primary	primary	ADJ
dss-287	3	81	types	type	NOUN
dss-287	3	82	of	of	ADP
dss-287	3	83	amateur	amateur	ADJ
dss-287	3	84	astronomical	astronomical	ADJ
dss-287	3	85	telescopes	telescope	NOUN
dss-287	3	86	:	:	PUNCT
dss-287	3	87	refractors	refractor	NOUN
dss-287	3	88	,	,	PUNCT
dss-287	3	89	reflectors	reflector	NOUN
dss-287	3	90	,	,	PUNCT
dss-287	3	91	and	and	CCONJ
dss-287	3	92	catadioptrics	catadioptric	NOUN
dss-287	3	93	.	.	PUNCT
dss-287	4	1	the	the	DET
dss-287	4	2	study	study	NOUN
dss-287	4	3	begins	begin	VERB
dss-287	4	4	with	with	ADP
dss-287	4	5	a	a	DET
dss-287	4	6	thorough	thorough	ADJ
dss-287	4	7	overview	overview	NOUN
dss-287	4	8	of	of	ADP
dss-287	4	9	existing	exist	VERB
dss-287	4	10	literature	literature	NOUN
dss-287	4	11	,	,	PUNCT
dss-287	4	12	referencing	reference	VERB
dss-287	4	13	over	over	ADP
dss-287	4	14	150	150	NUM
dss-287	4	15	sources	source	NOUN
dss-287	4	16	to	to	PART
dss-287	4	17	provide	provide	VERB
dss-287	4	18	a	a	DET
dss-287	4	19	theoretical	theoretical	ADJ
dss-287	4	20	introduction	introduction	NOUN
dss-287	4	21	for	for	ADP
dss-287	4	22	the	the	DET
dss-287	4	23	analysis	analysis	NOUN
dss-287	4	24	.	.	PUNCT
dss-287	5	1	each	each	DET
dss-287	5	2	telescope	telescope	NOUN
dss-287	5	3	type	type	NOUN
dss-287	5	4	is	be	AUX
dss-287	5	5	evaluated	evaluate	VERB
dss-287	5	6	in	in	ADP
dss-287	5	7	terms	term	NOUN
dss-287	5	8	of	of	ADP
dss-287	5	9	its	its	PRON
dss-287	5	10	optical	optical	ADJ
dss-287	5	11	construction	construction	NOUN
dss-287	5	12	,	,	PUNCT
dss-287	5	13	aberration	aberration	NOUN
dss-287	5	14	control	control	NOUN
dss-287	5	15	,	,	PUNCT
dss-287	5	16	portability	portability	NOUN
dss-287	5	17	,	,	PUNCT
dss-287	5	18	maintenance	maintenance	NOUN
dss-287	5	19	,	,	PUNCT
dss-287	5	20	and	and	CCONJ
dss-287	5	21	suitability	suitability	NOUN
dss-287	5	22	for	for	ADP
dss-287	5	23	both	both	PRON
dss-287	5	24	visual	visual	ADJ
dss-287	5	25	observation	observation	NOUN
dss-287	5	26	and	and	CCONJ
dss-287	5	27	astrophotography	astrophotography	NOUN
dss-287	5	28	.	.	PUNCT
dss-287	6	1	key	key	ADJ
dss-287	6	2	differences	difference	NOUN
dss-287	6	3	and	and	CCONJ
dss-287	6	4	trade	trade	NOUN
dss-287	6	5	-	-	PUNCT
dss-287	6	6	offs	off	NOUN
dss-287	6	7	in	in	ADP
dss-287	6	8	performance	performance	NOUN
dss-287	6	9	,	,	PUNCT
dss-287	6	10	usability	usability	NOUN
dss-287	6	11	,	,	PUNCT
dss-287	6	12	and	and	CCONJ
dss-287	6	13	cost	cost	NOUN
dss-287	6	14	are	be	AUX
dss-287	6	15	discussed	discuss	VERB
dss-287	6	16	.	.	PUNCT
dss-287	7	1	special	special	ADJ
dss-287	7	2	attention	attention	NOUN
dss-287	7	3	is	be	AUX
dss-287	7	4	given	give	VERB
dss-287	7	5	to	to	ADP
dss-287	7	6	how	how	SCONJ
dss-287	7	7	each	each	DET
dss-287	7	8	design	design	NOUN
dss-287	7	9	handles	handle	VERB
dss-287	7	10	chromatic	chromatic	ADJ
dss-287	7	11	and	and	CCONJ
dss-287	7	12	spherical	spherical	ADJ
dss-287	7	13	aberrations	aberration	NOUN
dss-287	7	14	,	,	PUNCT
dss-287	7	15	field	field	NOUN
dss-287	7	16	curvature	curvature	NOUN
dss-287	7	17	,	,	PUNCT
dss-287	7	18	and	and	CCONJ
dss-287	7	19	diffraction	diffraction	NOUN
dss-287	7	20	effects	effect	NOUN
dss-287	7	21	factors	factor	NOUN
dss-287	7	22	critical	critical	ADJ
dss-287	7	23	to	to	ADP
dss-287	7	24	image	image	NOUN
dss-287	7	25	sharpness	sharpness	NOUN
dss-287	7	26	and	and	CCONJ
dss-287	7	27	contrast	contrast	NOUN
dss-287	7	28	.	.	PUNCT
dss-287	8	1	the	the	DET
dss-287	8	2	paper	paper	NOUN
dss-287	8	3	concludes	conclude	VERB
dss-287	8	4	with	with	ADP
dss-287	8	5	practical	practical	ADJ
dss-287	8	6	recommendations	recommendation	NOUN
dss-287	8	7	tailored	tailor	VERB
dss-287	8	8	to	to	ADP
dss-287	8	9	various	various	ADJ
dss-287	8	10	user	user	NOUN
dss-287	8	11	needs	need	NOUN
dss-287	8	12	,	,	PUNCT
dss-287	8	13	such	such	ADJ
dss-287	8	14	as	as	ADP
dss-287	8	15	planetary	planetary	ADJ
dss-287	8	16	observation	observation	NOUN
dss-287	8	17	,	,	PUNCT
dss-287	8	18	deep	deep	ADJ
dss-287	8	19	-	-	PUNCT
dss-287	8	20	sky	sky	NOUN
dss-287	8	21	imaging	imaging	NOUN
dss-287	8	22	,	,	PUNCT
dss-287	8	23	or	or	CCONJ
dss-287	8	24	beginner	beginner	NOUN
dss-287	8	25	-	-	PUNCT
dss-287	8	26	level	level	NOUN
dss-287	8	27	stargazing	stargazing	NOUN
dss-287	8	28	.	.	PUNCT
dss-287	9	1	by	by	ADP
dss-287	9	2	synthesizing	synthesize	VERB
dss-287	9	3	theoretical	theoretical	ADJ
dss-287	9	4	insights	insight	NOUN
dss-287	9	5	with	with	ADP
dss-287	9	6	practical	practical	ADJ
dss-287	9	7	considerations	consideration	NOUN
dss-287	9	8	,	,	PUNCT
dss-287	9	9	this	this	DET
dss-287	9	10	review	review	NOUN
dss-287	9	11	aims	aim	VERB
dss-287	9	12	to	to	PART
dss-287	9	13	guide	guide	VERB
dss-287	9	14	amateur	amateur	ADJ
dss-287	9	15	astronomers	astronomer	NOUN
dss-287	9	16	,	,	PUNCT
dss-287	9	17	educators	educator	NOUN
dss-287	9	18	,	,	PUNCT
dss-287	9	19	and	and	CCONJ
dss-287	9	20	enthusiasts	enthusiast	NOUN
dss-287	9	21	in	in	ADP
dss-287	9	22	selecting	select	VERB
dss-287	9	23	the	the	DET
dss-287	9	24	most	most	ADV
dss-287	9	25	appropriate	appropriate	ADJ
dss-287	9	26	telescope	telescope	NOUN
dss-287	9	27	type	type	NOUN
dss-287	9	28	for	for	ADP
dss-287	9	29	their	their	PRON
dss-287	9	30	specific	specific	ADJ
dss-287	9	31	interests	interest	NOUN
dss-287	9	32	and	and	CCONJ
dss-287	9	33	observing	observe	VERB
dss-287	9	34	goals	goal	NOUN
dss-287	9	35	.	.	PUNCT
dss-287	10	1	©	©	ADP
dss-287	10	2	the	the	DET
dss-287	10	3	author	author	NOUN
dss-287	10	4	2025	2025	NUM
dss-287	10	5	.	.	PUNCT
dss-287	11	1	published	publish	VERB
dss-287	11	2	by	by	ADP
dss-287	11	3	arda	arda	PROPN
dss-287	11	4	.	.	PUNCT
dss-287	12	1	keywords	keyword	NOUN
dss-287	12	2	:	:	PUNCT
dss-287	12	3	astronomical	astronomical	ADJ
dss-287	12	4	telescope	telescope	NOUN
dss-287	12	5	;	;	PUNCT
dss-287	12	6	optical	optical	ADJ
dss-287	12	7	design	design	NOUN
dss-287	12	8	;	;	PUNCT
dss-287	12	9	refractor	refractor	NOUN
dss-287	12	10	;	;	PUNCT
dss-287	12	11	reflector	reflector	NOUN
dss-287	12	12	;	;	PUNCT
dss-287	12	13	catadiopter	catadiopter	NOUN
dss-287	12	14	1	1	NUM
dss-287	12	15	.	.	PUNCT
dss-287	13	1	introduction	introduction	NOUN
dss-287	13	2	astronomical	astronomical	ADJ
dss-287	13	3	telescopes	telescope	NOUN
dss-287	13	4	have	have	AUX
dss-287	13	5	played	play	VERB
dss-287	13	6	a	a	DET
dss-287	13	7	crucial	crucial	ADJ
dss-287	13	8	role	role	NOUN
dss-287	13	9	in	in	ADP
dss-287	13	10	expanding	expand	VERB
dss-287	13	11	our	our	PRON
dss-287	13	12	understanding	understanding	NOUN
dss-287	13	13	of	of	ADP
dss-287	13	14	the	the	DET
dss-287	13	15	universe	universe	NOUN
dss-287	13	16	,	,	PUNCT
dss-287	13	17	enabling	enable	VERB
dss-287	13	18	observations	observation	NOUN
dss-287	13	19	from	from	ADP
dss-287	13	20	the	the	DET
dss-287	13	21	visible	visible	ADJ
dss-287	13	22	spectrum	spectrum	NOUN
dss-287	13	23	to	to	ADP
dss-287	13	24	infrared	infrared	NOUN
dss-287	13	25	and	and	CCONJ
dss-287	13	26	radio	radio	NOUN
dss-287	13	27	wavelengths	wavelength	NOUN
dss-287	13	28	.	.	PUNCT
dss-287	14	1	over	over	ADP
dss-287	14	2	the	the	DET
dss-287	14	3	centuries	century	NOUN
dss-287	14	4	,	,	PUNCT
dss-287	14	5	telescope	telescope	NOUN
dss-287	14	6	designs	design	NOUN
dss-287	14	7	have	have	AUX
dss-287	14	8	evolved	evolve	VERB
dss-287	14	9	significantly	significantly	ADV
dss-287	14	10	from	from	ADP
dss-287	14	11	early	early	ADJ
dss-287	14	12	refractors	refractor	NOUN
dss-287	14	13	and	and	CCONJ
dss-287	14	14	reflectors	reflector	NOUN
dss-287	14	15	to	to	ADP
dss-287	14	16	sophisticated	sophisticated	ADJ
dss-287	14	17	space	space	NOUN
dss-287	14	18	-	-	PUNCT
dss-287	14	19	based	base	VERB
dss-287	14	20	observatories	observatory	NOUN
dss-287	14	21	equipped	equip	VERB
dss-287	14	22	with	with	ADP
dss-287	14	23	adaptive	adaptive	ADJ
dss-287	14	24	optics	optic	NOUN
dss-287	14	25	and	and	CCONJ
dss-287	14	26	segmented	segment	VERB
dss-287	14	27	mirrors	mirror	NOUN
dss-287	14	28	.	.	PUNCT
dss-287	15	1	each	each	DET
dss-287	15	2	design	design	NOUN
dss-287	15	3	is	be	AUX
dss-287	15	4	driven	drive	VERB
dss-287	15	5	by	by	ADP
dss-287	15	6	scientific	scientific	ADJ
dss-287	15	7	requirements	requirement	NOUN
dss-287	15	8	,	,	PUNCT
dss-287	15	9	such	such	ADJ
dss-287	15	10	as	as	ADP
dss-287	15	11	improved	improved	ADJ
dss-287	15	12	resolution	resolution	NOUN
dss-287	15	13	,	,	PUNCT
dss-287	15	14	greater	great	ADJ
dss-287	15	15	light	light	ADJ
dss-287	15	16	-	-	PUNCT
dss-287	15	17	gathering	gather	VERB
dss-287	15	18	power	power	NOUN
dss-287	15	19	,	,	PUNCT
dss-287	15	20	and	and	CCONJ
dss-287	15	21	minimized	minimized	ADJ
dss-287	15	22	optical	optical	ADJ
dss-287	15	23	aberrations	aberration	NOUN
dss-287	15	24	.	.	PUNCT
dss-287	16	1	astronomers	astronomer	NOUN
dss-287	16	2	rely	rely	VERB
dss-287	16	3	on	on	ADP
dss-287	16	4	three	three	NUM
dss-287	16	5	main	main	ADJ
dss-287	16	6	types	type	NOUN
dss-287	16	7	of	of	ADP
dss-287	16	8	telescopes	telescope	NOUN
dss-287	16	9	:	:	PUNCT
dss-287	16	10	refracting	refracting	NOUN
dss-287	16	11	,	,	PUNCT
dss-287	16	12	reflecting	reflect	VERB
dss-287	16	13	,	,	PUNCT
dss-287	16	14	and	and	CCONJ
dss-287	16	15	catadioptric	catadioptric	NOUN
dss-287	16	16	systems	system	NOUN
dss-287	16	17	.	.	PUNCT
dss-287	17	1	each	each	DET
dss-287	17	2	design	design	NOUN
dss-287	17	3	has	have	VERB
dss-287	17	4	distinct	distinct	ADJ
dss-287	17	5	optical	optical	ADJ
dss-287	17	6	characteristics	characteristic	NOUN
dss-287	17	7	that	that	PRON
dss-287	17	8	influence	influence	VERB
dss-287	17	9	image	image	NOUN
dss-287	17	10	quality	quality	NOUN
dss-287	17	11	,	,	PUNCT
dss-287	17	12	such	such	ADJ
dss-287	17	13	as	as	ADP
dss-287	17	14	resolution	resolution	NOUN
dss-287	17	15	,	,	PUNCT
dss-287	17	16	contrast	contrast	NOUN
dss-287	17	17	,	,	PUNCT
dss-287	17	18	and	and	CCONJ
dss-287	17	19	the	the	DET
dss-287	17	20	correction	correction	NOUN
dss-287	17	21	of	of	ADP
dss-287	17	22	various	various	ADJ
dss-287	17	23	aberrations	aberration	NOUN
dss-287	17	24	.	.	PUNCT
dss-287	18	1	this	this	DET
dss-287	18	2	paper	paper	NOUN
dss-287	18	3	examines	examine	VERB
dss-287	18	4	the	the	DET
dss-287	18	5	fundamental	fundamental	ADJ
dss-287	18	6	principles	principle	NOUN
dss-287	18	7	behind	behind	ADP
dss-287	18	8	these	these	DET
dss-287	18	9	telescope	telescope	NOUN
dss-287	18	10	types	type	NOUN
dss-287	18	11	and	and	CCONJ
dss-287	18	12	analyzes	analyze	VERB
dss-287	18	13	their	their	PRON
dss-287	18	14	performance	performance	NOUN
dss-287	18	15	in	in	ADP
dss-287	18	16	both	both	CCONJ
dss-287	18	17	visual	visual	ADJ
dss-287	18	18	observation	observation	NOUN
dss-287	18	19	and	and	CCONJ
dss-287	18	20	astrophotography	astrophotography	NOUN
dss-287	18	21	.	.	PUNCT
dss-287	19	1	consideration	consideration	NOUN
dss-287	19	2	is	be	AUX
dss-287	19	3	given	give	VERB
dss-287	19	4	not	not	PART
dss-287	19	5	only	only	ADV
dss-287	19	6	to	to	ADP
dss-287	19	7	optical	optical	ADJ
dss-287	19	8	performance	performance	NOUN
dss-287	19	9	but	but	CCONJ
dss-287	19	10	also	also	ADV
dss-287	19	11	to	to	ADP
dss-287	19	12	practical	practical	ADJ
dss-287	19	13	aspects	aspect	NOUN
dss-287	19	14	like	like	ADP
dss-287	19	15	portability	portability	NOUN
dss-287	19	16	,	,	PUNCT
dss-287	19	17	ease	ease	NOUN
dss-287	19	18	of	of	ADP
dss-287	19	19	use	use	NOUN
dss-287	19	20	,	,	PUNCT
dss-287	19	21	maintenance	maintenance	NOUN
dss-287	19	22	,	,	PUNCT
dss-287	19	23	and	and	CCONJ
dss-287	19	24	cost	cost	NOUN
dss-287	19	25	.	.	PUNCT
dss-287	20	1	drawing	draw	VERB
dss-287	20	2	on	on	ADP
dss-287	20	3	a	a	DET
dss-287	20	4	broad	broad	ADJ
dss-287	20	5	range	range	NOUN
dss-287	20	6	of	of	ADP
dss-287	20	7	literature	literature	NOUN
dss-287	20	8	,	,	PUNCT
dss-287	20	9	the	the	DET
dss-287	20	10	paper	paper	NOUN
dss-287	20	11	offers	offer	VERB
dss-287	20	12	a	a	DET
dss-287	20	13	comparative	comparative	ADJ
dss-287	20	14	overview	overview	NOUN
dss-287	20	15	aimed	aim	VERB
dss-287	20	16	at	at	ADP
dss-287	20	17	helping	help	VERB
dss-287	20	18	users	user	NOUN
dss-287	20	19	understand	understand	VERB
dss-287	20	20	the	the	DET
dss-287	20	21	advantages	advantage	NOUN
dss-287	20	22	and	and	CCONJ
dss-287	20	23	limitations	limitation	NOUN
dss-287	20	24	of	of	ADP
dss-287	20	25	each	each	DET
dss-287	20	26	design	design	NOUN
dss-287	20	27	.	.	PUNCT
dss-287	21	1	based	base	VERB
dss-287	21	2	on	on	ADP
dss-287	21	3	this	this	DET
dss-287	21	4	analysis	analysis	NOUN
dss-287	21	5	,	,	PUNCT
dss-287	21	6	recommendations	recommendation	NOUN
dss-287	21	7	are	be	AUX
dss-287	21	8	provided	provide	VERB
dss-287	21	9	in	in	ADP
dss-287	21	10	selecting	select	VERB
dss-287	21	11	the	the	DET
dss-287	21	12	most	most	ADV
dss-287	21	13	appropriate	appropriate	ADJ
dss-287	21	14	telescope	telescope	NOUN
dss-287	21	15	for	for	ADP
dss-287	21	16	specific	specific	ADJ
dss-287	21	17	observational	observational	ADJ
dss-287	21	18	needs	need	NOUN
dss-287	21	19	.	.	PUNCT
dss-287	22	1	dss	dss	NOUN
dss-287	22	2	vol	vol	NOUN
dss-287	22	3	.	.	PROPN
dss-287	23	1	6	6	NUM
dss-287	23	2	,	,	PUNCT
dss-287	23	3	no	no	INTJ
dss-287	23	4	.	.	NOUN
dss-287	23	5	1	1	NUM
dss-287	23	6	,	,	PUNCT
dss-287	23	7	2025	2025	NUM
dss-287	23	8	,	,	PUNCT
dss-287	23	9	pp.49	pp.49	NOUN
dss-287	23	10	-	-	SYM
dss-287	23	11	90	90	NUM
dss-287	23	12	50	50	NUM
dss-287	23	13	2	2	NUM
dss-287	23	14	.	.	PUNCT
dss-287	23	15	review	review	NOUN
dss-287	23	16	of	of	ADP
dss-287	23	17	literature	literature	PROPN
dss-287	23	18	a	a	DET
dss-287	23	19	substantial	substantial	ADJ
dss-287	23	20	body	body	NOUN
dss-287	23	21	of	of	ADP
dss-287	23	22	literature	literature	NOUN
dss-287	23	23	exists	exist	VERB
dss-287	23	24	on	on	ADP
dss-287	23	25	the	the	DET
dss-287	23	26	design	design	NOUN
dss-287	23	27	and	and	CCONJ
dss-287	23	28	development	development	NOUN
dss-287	23	29	of	of	ADP
dss-287	23	30	astronomical	astronomical	ADJ
dss-287	23	31	telescopes	telescope	NOUN
dss-287	23	32	,	,	PUNCT
dss-287	23	33	encompassing	encompass	VERB
dss-287	23	34	both	both	CCONJ
dss-287	23	35	academic	academic	ADJ
dss-287	23	36	publications	publication	NOUN
dss-287	23	37	and	and	CCONJ
dss-287	23	38	practical	practical	ADJ
dss-287	23	39	manuals	manual	NOUN
dss-287	23	40	.	.	PUNCT
dss-287	24	1	numerous	numerous	ADJ
dss-287	24	2	high	high	ADJ
dss-287	24	3	-	-	PUNCT
dss-287	24	4	quality	quality	NOUN
dss-287	24	5	books	book	NOUN
dss-287	24	6	are	be	AUX
dss-287	24	7	available	available	ADJ
dss-287	24	8	that	that	PRON
dss-287	24	9	explore	explore	VERB
dss-287	24	10	the	the	DET
dss-287	24	11	theoretical	theoretical	ADJ
dss-287	24	12	foundations	foundation	NOUN
dss-287	24	13	and	and	CCONJ
dss-287	24	14	engineering	engineering	NOUN
dss-287	24	15	aspects	aspect	NOUN
dss-287	24	16	of	of	ADP
dss-287	24	17	telescope	telescope	NOUN
dss-287	24	18	construction	construction	NOUN
dss-287	24	19	.	.	PUNCT
dss-287	25	1	these	these	DET
dss-287	25	2	resources	resource	NOUN
dss-287	25	3	can	can	AUX
dss-287	25	4	generally	generally	ADV
dss-287	25	5	be	be	AUX
dss-287	25	6	categorized	categorize	VERB
dss-287	25	7	into	into	ADP
dss-287	25	8	two	two	NUM
dss-287	25	9	distinct	distinct	ADJ
dss-287	25	10	groups	group	NOUN
dss-287	25	11	:	:	PUNCT
dss-287	25	12	those	those	PRON
dss-287	25	13	that	that	PRON
dss-287	25	14	address	address	VERB
dss-287	25	15	the	the	DET
dss-287	25	16	complex	complex	ADJ
dss-287	25	17	requirements	requirement	NOUN
dss-287	25	18	and	and	CCONJ
dss-287	25	19	design	design	NOUN
dss-287	25	20	methodologies	methodology	NOUN
dss-287	25	21	of	of	ADP
dss-287	25	22	professional	professional	ADJ
dss-287	25	23	observatory	observatory	ADJ
dss-287	25	24	-	-	PUNCT
dss-287	25	25	class	class	NOUN
dss-287	25	26	telescopes	telescope	NOUN
dss-287	25	27	,	,	PUNCT
dss-287	25	28	and	and	CCONJ
dss-287	25	29	those	those	PRON
dss-287	25	30	that	that	PRON
dss-287	25	31	serve	serve	VERB
dss-287	25	32	as	as	ADP
dss-287	25	33	practical	practical	ADJ
dss-287	25	34	guides	guide	NOUN
dss-287	25	35	for	for	ADP
dss-287	25	36	amateur	amateur	ADJ
dss-287	25	37	telescope	telescope	NOUN
dss-287	25	38	makers	maker	NOUN
dss-287	25	39	.	.	PUNCT
dss-287	26	1	while	while	SCONJ
dss-287	26	2	the	the	DET
dss-287	26	3	former	former	ADJ
dss-287	26	4	often	often	ADV
dss-287	26	5	delves	delve	VERB
dss-287	26	6	into	into	ADP
dss-287	26	7	advanced	advanced	ADJ
dss-287	26	8	optical	optical	ADJ
dss-287	26	9	theory	theory	NOUN
dss-287	26	10	,	,	PUNCT
dss-287	26	11	precision	precision	NOUN
dss-287	26	12	engineering	engineering	NOUN
dss-287	26	13	,	,	PUNCT
dss-287	26	14	and	and	CCONJ
dss-287	26	15	large	large	ADJ
dss-287	26	16	-	-	PUNCT
dss-287	26	17	scale	scale	NOUN
dss-287	26	18	instrumentation	instrumentation	NOUN
dss-287	26	19	,	,	PUNCT
dss-287	26	20	the	the	DET
dss-287	26	21	latter	latter	ADJ
dss-287	26	22	typically	typically	ADV
dss-287	26	23	focuses	focus	VERB
dss-287	26	24	on	on	ADP
dss-287	26	25	simplified	simplified	ADJ
dss-287	26	26	construction	construction	NOUN
dss-287	26	27	techniques	technique	NOUN
dss-287	26	28	,	,	PUNCT
dss-287	26	29	costeffective	costeffective	ADJ
dss-287	26	30	materials	material	NOUN
dss-287	26	31	,	,	PUNCT
dss-287	26	32	and	and	CCONJ
dss-287	26	33	performance	performance	NOUN
dss-287	26	34	optimization	optimization	NOUN
dss-287	26	35	for	for	ADP
dss-287	26	36	personal	personal	ADJ
dss-287	26	37	or	or	CCONJ
dss-287	26	38	hobbyist	hobbyist	ADJ
dss-287	26	39	use	use	NOUN
dss-287	26	40	.	.	PUNCT
dss-287	27	1	in	in	ADP
dss-287	27	2	addition	addition	NOUN
dss-287	27	3	to	to	ADP
dss-287	27	4	books	book	NOUN
dss-287	27	5	,	,	PUNCT
dss-287	27	6	a	a	DET
dss-287	27	7	wide	wide	ADJ
dss-287	27	8	range	range	NOUN
dss-287	27	9	of	of	ADP
dss-287	27	10	peer	peer	NOUN
dss-287	27	11	-	-	PUNCT
dss-287	27	12	reviewed	review	VERB
dss-287	27	13	scientific	scientific	ADJ
dss-287	27	14	articles	article	NOUN
dss-287	27	15	contributes	contribute	VERB
dss-287	27	16	to	to	ADP
dss-287	27	17	the	the	DET
dss-287	27	18	field	field	NOUN
dss-287	27	19	by	by	ADP
dss-287	27	20	presenting	present	VERB
dss-287	27	21	original	original	ADJ
dss-287	27	22	research	research	NOUN
dss-287	27	23	,	,	PUNCT
dss-287	27	24	case	case	NOUN
dss-287	27	25	studies	study	NOUN
dss-287	27	26	,	,	PUNCT
dss-287	27	27	and	and	CCONJ
dss-287	27	28	technical	technical	ADJ
dss-287	27	29	innovations	innovation	NOUN
dss-287	27	30	in	in	ADP
dss-287	27	31	telescope	telescope	NOUN
dss-287	27	32	optics	optic	NOUN
dss-287	27	33	,	,	PUNCT
dss-287	27	34	mechanical	mechanical	ADJ
dss-287	27	35	design	design	NOUN
dss-287	27	36	,	,	PUNCT
dss-287	27	37	and	and	CCONJ
dss-287	27	38	performance	performance	NOUN
dss-287	27	39	analysis	analysis	NOUN
dss-287	27	40	.	.	PUNCT
dss-287	28	1	these	these	DET
dss-287	28	2	papers	paper	NOUN
dss-287	28	3	provide	provide	VERB
dss-287	28	4	valuable	valuable	ADJ
dss-287	28	5	insights	insight	NOUN
dss-287	28	6	into	into	ADP
dss-287	28	7	recent	recent	ADJ
dss-287	28	8	advancements	advancement	NOUN
dss-287	28	9	in	in	ADP
dss-287	28	10	optical	optical	ADJ
dss-287	28	11	materials	material	NOUN
dss-287	28	12	,	,	PUNCT
dss-287	28	13	aberration	aberration	NOUN
dss-287	28	14	correction	correction	NOUN
dss-287	28	15	techniques	technique	NOUN
dss-287	28	16	,	,	PUNCT
dss-287	28	17	and	and	CCONJ
dss-287	28	18	adaptive	adaptive	ADJ
dss-287	28	19	optics	optic	NOUN
dss-287	28	20	systems	system	NOUN
dss-287	28	21	.	.	PUNCT
dss-287	29	1	the	the	DET
dss-287	29	2	diversity	diversity	NOUN
dss-287	29	3	of	of	ADP
dss-287	29	4	topics	topic	NOUN
dss-287	29	5	covered	cover	VERB
dss-287	29	6	in	in	ADP
dss-287	29	7	the	the	DET
dss-287	29	8	literature	literature	NOUN
dss-287	29	9	reflects	reflect	VERB
dss-287	29	10	the	the	DET
dss-287	29	11	ongoing	ongoing	ADJ
dss-287	29	12	evolution	evolution	NOUN
dss-287	29	13	of	of	ADP
dss-287	29	14	telescope	telescope	NOUN
dss-287	29	15	technology	technology	NOUN
dss-287	29	16	and	and	CCONJ
dss-287	29	17	the	the	DET
dss-287	29	18	broad	broad	ADJ
dss-287	29	19	interest	interest	NOUN
dss-287	29	20	it	it	PRON
dss-287	29	21	holds	hold	VERB
dss-287	29	22	for	for	ADP
dss-287	29	23	both	both	CCONJ
dss-287	29	24	professional	professional	ADJ
dss-287	29	25	astronomers	astronomer	NOUN
dss-287	29	26	and	and	CCONJ
dss-287	29	27	dedicated	dedicated	ADJ
dss-287	29	28	amateurs	amateur	NOUN
dss-287	29	29	.	.	PUNCT
dss-287	30	1	this	this	DET
dss-287	30	2	study	study	NOUN
dss-287	30	3	incorporates	incorporate	VERB
dss-287	30	4	a	a	DET
dss-287	30	5	curated	curate	VERB
dss-287	30	6	selection	selection	NOUN
dss-287	30	7	of	of	ADP
dss-287	30	8	these	these	DET
dss-287	30	9	resources	resource	NOUN
dss-287	30	10	,	,	PUNCT
dss-287	30	11	with	with	ADP
dss-287	30	12	over	over	ADP
dss-287	30	13	150	150	NUM
dss-287	30	14	references	reference	NOUN
dss-287	30	15	reviewed	review	VERB
dss-287	30	16	to	to	PART
dss-287	30	17	ensure	ensure	VERB
dss-287	30	18	a	a	DET
dss-287	30	19	comprehensive	comprehensive	ADJ
dss-287	30	20	understanding	understanding	NOUN
dss-287	30	21	of	of	ADP
dss-287	30	22	current	current	ADJ
dss-287	30	23	trends	trend	NOUN
dss-287	30	24	and	and	CCONJ
dss-287	30	25	foundational	foundational	ADJ
dss-287	30	26	concepts	concept	NOUN
dss-287	30	27	in	in	ADP
dss-287	30	28	telescope	telescope	NOUN
dss-287	30	29	design	design	NOUN
dss-287	30	30	.	.	PUNCT
dss-287	31	1	the	the	DET
dss-287	31	2	literature	literature	NOUN
dss-287	31	3	survey	survey	NOUN
dss-287	31	4	not	not	PART
dss-287	31	5	only	only	ADV
dss-287	31	6	highlights	highlight	VERB
dss-287	31	7	the	the	DET
dss-287	31	8	historical	historical	ADJ
dss-287	31	9	progression	progression	NOUN
dss-287	31	10	of	of	ADP
dss-287	31	11	various	various	ADJ
dss-287	31	12	telescope	telescope	NOUN
dss-287	31	13	types	type	NOUN
dss-287	31	14	but	but	CCONJ
dss-287	31	15	also	also	ADV
dss-287	31	16	identifies	identify	VERB
dss-287	31	17	key	key	ADJ
dss-287	31	18	contributions	contribution	NOUN
dss-287	31	19	that	that	PRON
dss-287	31	20	have	have	AUX
dss-287	31	21	influenced	influence	VERB
dss-287	31	22	the	the	DET
dss-287	31	23	design	design	NOUN
dss-287	31	24	principles	principle	NOUN
dss-287	31	25	of	of	ADP
dss-287	31	26	modern	modern	ADJ
dss-287	31	27	amateur	amateur	ADJ
dss-287	31	28	telescopes	telescope	NOUN
dss-287	31	29	.	.	PUNCT
dss-287	32	1	through	through	ADP
dss-287	32	2	this	this	DET
dss-287	32	3	extensive	extensive	ADJ
dss-287	32	4	review	review	NOUN
dss-287	32	5	,	,	PUNCT
dss-287	32	6	the	the	DET
dss-287	32	7	paper	paper	NOUN
dss-287	32	8	aims	aim	VERB
dss-287	32	9	to	to	PART
dss-287	32	10	bridge	bridge	VERB
dss-287	32	11	the	the	DET
dss-287	32	12	gap	gap	NOUN
dss-287	32	13	between	between	ADP
dss-287	32	14	theoretical	theoretical	ADJ
dss-287	32	15	knowledge	knowledge	NOUN
dss-287	32	16	and	and	CCONJ
dss-287	32	17	practical	practical	ADJ
dss-287	32	18	application	application	NOUN
dss-287	32	19	,	,	PUNCT
dss-287	32	20	providing	provide	VERB
dss-287	32	21	a	a	DET
dss-287	32	22	solid	solid	ADJ
dss-287	32	23	contextual	contextual	ADJ
dss-287	32	24	framework	framework	NOUN
dss-287	32	25	for	for	ADP
dss-287	32	26	the	the	DET
dss-287	32	27	comparative	comparative	ADJ
dss-287	32	28	analysis	analysis	NOUN
dss-287	32	29	that	that	PRON
dss-287	32	30	follows	follow	VERB
dss-287	32	31	.	.	PUNCT
dss-287	33	1	2.1	2.1	NUM
dss-287	33	2	review	review	NOUN
dss-287	33	3	of	of	ADP
dss-287	33	4	books	book	NOUN
dss-287	33	5	"	"	PUNCT
dss-287	33	6	the	the	DET
dss-287	33	7	history	history	NOUN
dss-287	33	8	of	of	ADP
dss-287	33	9	the	the	DET
dss-287	33	10	telescope	telescope	NOUN
dss-287	33	11	"	"	PUNCT
dss-287	33	12	by	by	ADP
dss-287	33	13	henry	henry	PROPN
dss-287	33	14	c.	c.	PROPN
dss-287	33	15	king	king	PROPN
dss-287	34	1	[	[	X
dss-287	34	2	38	38	NUM
dss-287	34	3	]	]	PUNCT
dss-287	34	4	is	be	AUX
dss-287	34	5	a	a	DET
dss-287	34	6	comprehensive	comprehensive	ADJ
dss-287	34	7	chronicle	chronicle	NOUN
dss-287	34	8	detailing	detail	VERB
dss-287	34	9	the	the	DET
dss-287	34	10	development	development	NOUN
dss-287	34	11	of	of	ADP
dss-287	34	12	the	the	DET
dss-287	34	13	telescope	telescope	NOUN
dss-287	34	14	from	from	ADP
dss-287	34	15	its	its	PRON
dss-287	34	16	invention	invention	NOUN
dss-287	34	17	through	through	ADP
dss-287	34	18	the	the	DET
dss-287	34	19	mid-20th	mid-20th	NUM
dss-287	34	20	century	century	NOUN
dss-287	34	21	.	.	PUNCT
dss-287	35	1	originally	originally	ADV
dss-287	35	2	published	publish	VERB
dss-287	35	3	in	in	ADP
dss-287	35	4	1955	1955	NUM
dss-287	35	5	,	,	PUNCT
dss-287	35	6	this	this	DET
dss-287	35	7	work	work	NOUN
dss-287	35	8	delves	delve	VERB
dss-287	35	9	into	into	ADP
dss-287	35	10	the	the	DET
dss-287	35	11	contributions	contribution	NOUN
dss-287	35	12	of	of	ADP
dss-287	35	13	renowned	renowned	ADJ
dss-287	35	14	figures	figure	NOUN
dss-287	35	15	,	,	PUNCT
dss-287	35	16	such	such	ADJ
dss-287	35	17	as	as	ADP
dss-287	35	18	galileo	galileo	PROPN
dss-287	35	19	,	,	PUNCT
dss-287	35	20	newton	newton	PROPN
dss-287	35	21	,	,	PUNCT
dss-287	35	22	and	and	CCONJ
dss-287	35	23	huygens	huygen	NOUN
dss-287	35	24	,	,	PUNCT
dss-287	35	25	and	and	CCONJ
dss-287	35	26	lesser	lesser	ADV
dss-287	35	27	-	-	PUNCT
dss-287	35	28	known	know	VERB
dss-287	35	29	craftsmen	craftsman	NOUN
dss-287	35	30	and	and	CCONJ
dss-287	35	31	amateurs	amateur	NOUN
dss-287	35	32	who	who	PRON
dss-287	35	33	played	play	VERB
dss-287	35	34	pivotal	pivotal	ADJ
dss-287	35	35	roles	role	NOUN
dss-287	35	36	in	in	ADP
dss-287	35	37	advancing	advance	VERB
dss-287	35	38	telescope	telescope	NOUN
dss-287	35	39	technology	technology	NOUN
dss-287	35	40	.	.	PUNCT
dss-287	36	1	king	king	PROPN
dss-287	36	2	's	's	PART
dss-287	36	3	narrative	narrative	NOUN
dss-287	36	4	is	be	AUX
dss-287	36	5	enriched	enrich	VERB
dss-287	36	6	by	by	ADP
dss-287	36	7	nearly	nearly	ADV
dss-287	36	8	200	200	NUM
dss-287	36	9	illustrations	illustration	NOUN
dss-287	36	10	,	,	PUNCT
dss-287	36	11	including	include	VERB
dss-287	36	12	portraits	portrait	NOUN
dss-287	36	13	,	,	PUNCT
dss-287	36	14	diagrams	diagram	NOUN
dss-287	36	15	,	,	PUNCT
dss-287	36	16	and	and	CCONJ
dss-287	36	17	photographs	photograph	NOUN
dss-287	36	18	,	,	PUNCT
dss-287	36	19	offering	offer	VERB
dss-287	36	20	readers	reader	NOUN
dss-287	36	21	a	a	DET
dss-287	36	22	visual	visual	ADJ
dss-287	36	23	journey	journey	NOUN
dss-287	36	24	through	through	ADP
dss-287	36	25	the	the	DET
dss-287	36	26	evolution	evolution	NOUN
dss-287	36	27	of	of	ADP
dss-287	36	28	astronomical	astronomical	ADJ
dss-287	36	29	instruments	instrument	NOUN
dss-287	36	30	.	.	PUNCT
dss-287	37	1	the	the	DET
dss-287	37	2	book	book	NOUN
dss-287	37	3	is	be	AUX
dss-287	37	4	praised	praise	VERB
dss-287	37	5	for	for	ADP
dss-287	37	6	its	its	PRON
dss-287	37	7	detailed	detailed	ADJ
dss-287	37	8	scholarship	scholarship	NOUN
dss-287	37	9	and	and	CCONJ
dss-287	37	10	accessibility	accessibility	NOUN
dss-287	37	11	,	,	PUNCT
dss-287	37	12	making	make	VERB
dss-287	37	13	it	it	PRON
dss-287	37	14	a	a	DET
dss-287	37	15	valuable	valuable	ADJ
dss-287	37	16	resource	resource	NOUN
dss-287	37	17	for	for	ADP
dss-287	37	18	both	both	DET
dss-287	37	19	enthusiasts	enthusiast	NOUN
dss-287	37	20	and	and	CCONJ
dss-287	37	21	scholars	scholar	NOUN
dss-287	37	22	interested	interested	ADJ
dss-287	37	23	in	in	ADP
dss-287	37	24	the	the	DET
dss-287	37	25	history	history	NOUN
dss-287	37	26	of	of	ADP
dss-287	37	27	astronomy	astronomy	NOUN
dss-287	37	28	and	and	CCONJ
dss-287	37	29	optical	optical	ADJ
dss-287	37	30	science	science	NOUN
dss-287	37	31	.	.	PUNCT
dss-287	38	1	cheng	cheng	PROPN
dss-287	38	2	in	in	ADP
dss-287	38	3	his	his	PRON
dss-287	38	4	book	book	NOUN
dss-287	39	1	[	[	X
dss-287	39	2	1	1	X
dss-287	39	3	]	]	PUNCT
dss-287	39	4	offers	offer	VERB
dss-287	39	5	a	a	DET
dss-287	39	6	comprehensive	comprehensive	ADJ
dss-287	39	7	exploration	exploration	NOUN
dss-287	39	8	of	of	ADP
dss-287	39	9	telescope	telescope	NOUN
dss-287	39	10	design	design	NOUN
dss-287	39	11	across	across	ADP
dss-287	39	12	the	the	DET
dss-287	39	13	electromagnetic	electromagnetic	ADJ
dss-287	39	14	spectrum	spectrum	NOUN
dss-287	39	15	,	,	PUNCT
dss-287	39	16	including	include	VERB
dss-287	39	17	radio	radio	NOUN
dss-287	39	18	,	,	PUNCT
dss-287	39	19	infrared	infrare	VERB
dss-287	39	20	,	,	PUNCT
dss-287	39	21	optical	optical	ADJ
dss-287	39	22	,	,	PUNCT
dss-287	39	23	x	x	NOUN
dss-287	39	24	-	-	NOUN
dss-287	39	25	ray	ray	NOUN
dss-287	39	26	,	,	PUNCT
dss-287	39	27	and	and	CCONJ
dss-287	39	28	gamma	gamma	NOUN
dss-287	39	29	-	-	PUNCT
dss-287	39	30	ray	ray	NOUN
dss-287	39	31	wavelengths	wavelength	NOUN
dss-287	39	32	.	.	PUNCT
dss-287	40	1	drawing	draw	VERB
dss-287	40	2	from	from	ADP
dss-287	40	3	over	over	ADP
dss-287	40	4	twentyfive	twentyfive	ADJ
dss-287	40	5	years	year	NOUN
dss-287	40	6	of	of	ADP
dss-287	40	7	experience	experience	NOUN
dss-287	40	8	,	,	PUNCT
dss-287	40	9	cheng	cheng	PROPN
dss-287	40	10	provides	provide	VERB
dss-287	40	11	both	both	PRON
dss-287	40	12	a	a	DET
dss-287	40	13	general	general	ADJ
dss-287	40	14	introduction	introduction	NOUN
dss-287	40	15	and	and	CCONJ
dss-287	40	16	an	an	DET
dss-287	40	17	in	in	ADP
dss-287	40	18	-	-	PUNCT
dss-287	40	19	depth	depth	NOUN
dss-287	40	20	theoretical	theoretical	ADJ
dss-287	40	21	analysis	analysis	NOUN
dss-287	40	22	of	of	ADP
dss-287	40	23	telescope	telescope	NOUN
dss-287	40	24	design	design	NOUN
dss-287	40	25	.	.	PUNCT
dss-287	41	1	the	the	DET
dss-287	41	2	book	book	NOUN
dss-287	41	3	is	be	AUX
dss-287	41	4	structured	structure	VERB
dss-287	41	5	into	into	ADP
dss-287	41	6	several	several	ADJ
dss-287	41	7	chapters	chapter	NOUN
dss-287	41	8	,	,	PUNCT
dss-287	41	9	each	each	PRON
dss-287	41	10	focusing	focus	VERB
dss-287	41	11	on	on	ADP
dss-287	41	12	different	different	ADJ
dss-287	41	13	aspects	aspect	NOUN
dss-287	41	14	of	of	ADP
dss-287	41	15	telescope	telescope	NOUN
dss-287	41	16	design	design	NOUN
dss-287	41	17	.	.	PUNCT
dss-287	42	1	bely	bely	PROPN
dss-287	42	2	[	[	X
dss-287	42	3	2	2	NUM
dss-287	42	4	]	]	PUNCT
dss-287	42	5	offers	offer	VERB
dss-287	42	6	a	a	DET
dss-287	42	7	comprehensive	comprehensive	ADJ
dss-287	42	8	resource	resource	NOUN
dss-287	42	9	that	that	PRON
dss-287	42	10	consolidates	consolidate	VERB
dss-287	42	11	the	the	DET
dss-287	42	12	astronomical	astronomical	ADJ
dss-287	42	13	and	and	CCONJ
dss-287	42	14	engineering	engineering	NOUN
dss-287	42	15	principles	principle	NOUN
dss-287	42	16	essential	essential	ADJ
dss-287	42	17	for	for	ADP
dss-287	42	18	designing	design	VERB
dss-287	42	19	and	and	CCONJ
dss-287	42	20	building	build	VERB
dss-287	42	21	large	large	ADJ
dss-287	42	22	telescopes	telescope	NOUN
dss-287	42	23	.	.	PUNCT
dss-287	43	1	published	publish	VERB
dss-287	43	2	in	in	ADP
dss-287	43	3	2003	2003	NUM
dss-287	43	4	as	as	ADP
dss-287	43	5	part	part	NOUN
dss-287	43	6	of	of	ADP
dss-287	43	7	the	the	DET
dss-287	43	8	astronomy	astronomy	NOUN
dss-287	43	9	and	and	CCONJ
dss-287	43	10	astrophysics	astrophysic	NOUN
dss-287	43	11	library	library	NOUN
dss-287	43	12	series	series	NOUN
dss-287	43	13	,	,	PUNCT
dss-287	43	14	the	the	DET
dss-287	43	15	book	book	NOUN
dss-287	43	16	addresses	address	VERB
dss-287	43	17	various	various	ADJ
dss-287	43	18	aspects	aspect	NOUN
dss-287	43	19	of	of	ADP
dss-287	43	20	telescope	telescope	NOUN
dss-287	43	21	development	development	NOUN
dss-287	43	22	,	,	PUNCT
dss-287	43	23	from	from	ADP
dss-287	43	24	fundamental	fundamental	ADJ
dss-287	43	25	astronomical	astronomical	ADJ
dss-287	43	26	observations	observation	NOUN
dss-287	43	27	to	to	ADP
dss-287	43	28	detailed	detailed	ADJ
dss-287	43	29	engineering	engineering	NOUN
dss-287	43	30	considerations	consideration	NOUN
dss-287	43	31	.	.	PUNCT
dss-287	44	1	rutten	rutten	PROPN
dss-287	44	2	and	and	CCONJ
dss-287	44	3	van	van	PROPN
dss-287	44	4	venrooij	venrooij	PROPN
dss-287	44	5	’s	’s	PART
dss-287	44	6	[	[	X
dss-287	44	7	3	3	NUM
dss-287	44	8	]	]	X
dss-287	44	9	excellent	excellent	ADJ
dss-287	44	10	book	book	NOUN
dss-287	44	11	explains	explain	VERB
dss-287	44	12	the	the	DET
dss-287	44	13	principles	principle	NOUN
dss-287	44	14	and	and	CCONJ
dss-287	44	15	practicalities	practicality	NOUN
dss-287	44	16	of	of	ADP
dss-287	44	17	telescope	telescope	NOUN
dss-287	44	18	design	design	NOUN
dss-287	44	19	and	and	CCONJ
dss-287	44	20	performance	performance	NOUN
dss-287	44	21	,	,	PUNCT
dss-287	44	22	tailored	tailor	VERB
dss-287	44	23	specifically	specifically	ADV
dss-287	44	24	for	for	ADP
dss-287	44	25	amateur	amateur	ADJ
dss-287	44	26	astronomers	astronomer	NOUN
dss-287	44	27	.	.	PUNCT
dss-287	45	1	first	first	ADV
dss-287	45	2	published	publish	VERB
dss-287	45	3	in	in	ADP
dss-287	45	4	1988	1988	NUM
dss-287	45	5	,	,	PUNCT
dss-287	45	6	this	this	DET
dss-287	45	7	book	book	NOUN
dss-287	45	8	serves	serve	VERB
dss-287	45	9	as	as	ADP
dss-287	45	10	both	both	CCONJ
dss-287	45	11	an	an	DET
dss-287	45	12	educational	educational	ADJ
dss-287	45	13	resource	resource	NOUN
dss-287	45	14	and	and	CCONJ
dss-287	45	15	a	a	DET
dss-287	45	16	reference	reference	NOUN
dss-287	45	17	manual	manual	NOUN
dss-287	45	18	.	.	PUNCT
dss-287	46	1	schroeder	schroeder	PROPN
dss-287	46	2	’s	’s	PART
dss-287	46	3	[	[	X
dss-287	46	4	4	4	NUM
dss-287	46	5	]	]	X
dss-287	46	6	book	book	NOUN
dss-287	46	7	is	be	AUX
dss-287	46	8	a	a	DET
dss-287	46	9	comprehensive	comprehensive	ADJ
dss-287	46	10	text	text	NOUN
dss-287	46	11	that	that	PRON
dss-287	46	12	delves	delve	VERB
dss-287	46	13	into	into	ADP
dss-287	46	14	the	the	DET
dss-287	46	15	fundamental	fundamental	ADJ
dss-287	46	16	principles	principle	NOUN
dss-287	46	17	and	and	CCONJ
dss-287	46	18	applications	application	NOUN
dss-287	46	19	of	of	ADP
dss-287	46	20	optical	optical	ADJ
dss-287	46	21	design	design	NOUN
dss-287	46	22	in	in	ADP
dss-287	46	23	astronomy	astronomy	NOUN
dss-287	46	24	.	.	PUNCT
dss-287	47	1	the	the	DET
dss-287	47	2	book	book	NOUN
dss-287	47	3	offers	offer	VERB
dss-287	47	4	a	a	DET
dss-287	47	5	unified	unified	ADJ
dss-287	47	6	treatment	treatment	NOUN
dss-287	47	7	of	of	ADP
dss-287	47	8	various	various	ADJ
dss-287	47	9	types	type	NOUN
dss-287	47	10	of	of	ADP
dss-287	47	11	telescopes	telescope	NOUN
dss-287	47	12	,	,	PUNCT
dss-287	47	13	addressing	address	VERB
dss-287	47	14	both	both	CCONJ
dss-287	47	15	those	those	PRON
dss-287	47	16	influenced	influence	VERB
dss-287	47	17	by	by	ADP
dss-287	47	18	geometrical	geometrical	ADJ
dss-287	47	19	aberrations	aberration	NOUN
dss-287	47	20	and	and	CCONJ
dss-287	47	21	atmospheric	atmospheric	ADJ
dss-287	47	22	effects	effect	NOUN
dss-287	47	23	,	,	PUNCT
dss-287	47	24	as	as	ADV
dss-287	47	25	well	well	ADV
dss-287	47	26	as	as	ADP
dss-287	47	27	diffraction	diffraction	NOUN
dss-287	47	28	-	-	PUNCT
dss-287	47	29	limited	limit	VERB
dss-287	47	30	telescopes	telescope	NOUN
dss-287	47	31	intended	intend	VERB
dss-287	47	32	for	for	ADP
dss-287	47	33	space	space	NOUN
dss-287	47	34	-	-	PUNCT
dss-287	47	35	based	base	VERB
dss-287	47	36	observations	observation	NOUN
dss-287	47	37	.	.	PUNCT
dss-287	48	1	emphasizing	emphasize	VERB
dss-287	48	2	foundational	foundational	ADJ
dss-287	48	3	concepts	concept	NOUN
dss-287	48	4	like	like	ADP
dss-287	48	5	fermat	fermat	PROPN
dss-287	48	6	's	's	PART
dss-287	48	7	principle	principle	NOUN
dss-287	48	8	,	,	PUNCT
dss-287	48	9	schroeder	schroeder	PROPN
dss-287	48	10	applies	apply	VERB
dss-287	48	11	these	these	PRON
dss-287	48	12	to	to	ADP
dss-287	48	13	optical	optical	ADJ
dss-287	48	14	systems	system	NOUN
dss-287	48	15	crafted	craft	VERB
dss-287	48	16	for	for	ADP
dss-287	48	17	imaging	image	VERB
dss-287	48	18	distant	distant	ADJ
dss-287	48	19	celestial	celestial	ADJ
dss-287	48	20	bodies	body	NOUN
dss-287	48	21	.	.	PUNCT
dss-287	49	1	wilson	wilson	PROPN
dss-287	49	2	in	in	ADP
dss-287	49	3	his	his	PRON
dss-287	49	4	two	two	NUM
dss-287	49	5	-	-	PUNCT
dss-287	49	6	volume	volume	NOUN
dss-287	49	7	series	series	NOUN
dss-287	50	1	[	[	X
dss-287	50	2	5,6	5,6	NUM
dss-287	50	3	]	]	PUNCT
dss-287	50	4	provides	provide	VERB
dss-287	50	5	an	an	DET
dss-287	50	6	in	in	ADP
dss-287	50	7	-	-	PUNCT
dss-287	50	8	depth	depth	NOUN
dss-287	50	9	exploration	exploration	NOUN
dss-287	50	10	of	of	ADP
dss-287	50	11	the	the	DET
dss-287	50	12	design	design	NOUN
dss-287	50	13	,	,	PUNCT
dss-287	50	14	manufacture	manufacture	NOUN
dss-287	50	15	,	,	PUNCT
dss-287	50	16	and	and	CCONJ
dss-287	50	17	testing	testing	NOUN
dss-287	50	18	of	of	ADP
dss-287	50	19	reflecting	reflect	VERB
dss-287	50	20	telescopes	telescope	NOUN
dss-287	50	21	.	.	PUNCT
dss-287	51	1	the	the	DET
dss-287	51	2	first	first	ADJ
dss-287	51	3	volume	volume	NOUN
dss-287	51	4	offers	offer	VERB
dss-287	51	5	an	an	DET
dss-287	51	6	overview	overview	NOUN
dss-287	51	7	of	of	ADP
dss-287	51	8	the	the	DET
dss-287	51	9	optical	optical	ADJ
dss-287	51	10	theory	theory	NOUN
dss-287	51	11	and	and	CCONJ
dss-287	51	12	historical	historical	ADJ
dss-287	51	13	evolution	evolution	NOUN
dss-287	51	14	of	of	ADP
dss-287	51	15	reflecting	reflect	VERB
dss-287	51	16	telescope	telescope	NOUN
dss-287	51	17	systems	system	NOUN
dss-287	51	18	.	.	PUNCT
dss-287	52	1	it	it	PRON
dss-287	52	2	covers	cover	VERB
dss-287	52	3	fundamental	fundamental	ADJ
dss-287	52	4	design	design	NOUN
dss-287	52	5	principles	principle	NOUN
dss-287	52	6	,	,	PUNCT
dss-287	52	7	including	include	VERB
dss-287	52	8	gaussian	gaussian	ADJ
dss-287	52	9	optics	optic	NOUN
dss-287	52	10	and	and	CCONJ
dss-287	52	11	aberration	aberration	NOUN
dss-287	52	12	theory	theory	NOUN
dss-287	52	13	,	,	PUNCT
dss-287	52	14	and	and	CCONJ
dss-287	52	15	discusses	discuss	VERB
dss-287	52	16	field	field	NOUN
dss-287	52	17	correctors	corrector	NOUN
dss-287	52	18	and	and	CCONJ
dss-287	52	19	focal	focal	ADJ
dss-287	52	20	reducers	reducer	NOUN
dss-287	52	21	.	.	PUNCT
dss-287	53	1	the	the	DET
dss-287	53	2	book	book	NOUN
dss-287	53	3	also	also	ADV
dss-287	53	4	provides	provide	VERB
dss-287	53	5	a	a	DET
dss-287	53	6	historical	historical	ADJ
dss-287	53	7	perspective	perspective	NOUN
dss-287	53	8	,	,	PUNCT
dss-287	53	9	detailing	detail	VERB
dss-287	53	10	major	major	ADJ
dss-287	53	11	telescopes	telescope	NOUN
dss-287	53	12	from	from	ADP
dss-287	53	13	lord	lord	PROPN
dss-287	53	14	rosse	rosse	PROPN
dss-287	53	15	's	's	PART
dss-287	53	16	era	era	NOUN
dss-287	53	17	up	up	ADP
dss-287	53	18	to	to	ADP
dss-287	53	19	the	the	DET
dss-287	53	20	1980s	1980s	NUM
dss-287	53	21	.	.	PUNCT
dss-287	54	1	building	build	VERB
dss-287	54	2	upon	upon	SCONJ
dss-287	54	3	the	the	DET
dss-287	54	4	first	first	ADJ
dss-287	54	5	volume	volume	NOUN
dss-287	54	6	,	,	PUNCT
dss-287	54	7	volume	volume	NOUN
dss-287	54	8	ii	ii	PROPN
dss-287	54	9	delves	delf	NOUN
dss-287	54	10	into	into	ADP
dss-287	54	11	modern	modern	ADJ
dss-287	54	12	developments	development	NOUN
dss-287	54	13	in	in	ADP
dss-287	54	14	reflecting	reflect	VERB
dss-287	54	15	telescope	telescope	NOUN
dss-287	54	16	optics	optic	NOUN
dss-287	54	17	over	over	ADP
dss-287	54	18	the	the	DET
dss-287	54	19	past	past	ADJ
dss-287	54	20	two	two	NUM
dss-287	54	21	decades	decade	NOUN
dss-287	54	22	.	.	PUNCT
dss-287	55	1	it	it	PRON
dss-287	55	2	addresses	address	VERB
dss-287	55	3	advancements	advancement	NOUN
dss-287	55	4	in	in	ADP
dss-287	55	5	manufacturing	manufacturing	NOUN
dss-287	55	6	and	and	CCONJ
dss-287	55	7	testing	testing	NOUN
dss-287	55	8	procedures	procedure	NOUN
dss-287	55	9	,	,	PUNCT
dss-287	55	10	alignment	alignment	NOUN
dss-287	55	11	techniques	technique	NOUN
dss-287	55	12	,	,	PUNCT
dss-287	55	13	and	and	CCONJ
dss-287	55	14	the	the	DET
dss-287	55	15	integration	integration	NOUN
dss-287	55	16	of	of	ADP
dss-287	55	17	active	active	ADJ
dss-287	55	18	control	control	NOUN
dss-287	55	19	systems	system	NOUN
dss-287	55	20	in	in	ADP
dss-287	55	21	telescopes	telescope	NOUN
dss-287	55	22	.	.	PUNCT
dss-287	56	1	topics	topic	NOUN
dss-287	56	2	such	such	ADJ
dss-287	56	3	as	as	ADP
dss-287	56	4	atmospheric	atmospheric	ADJ
dss-287	56	5	and	and	CCONJ
dss-287	56	6	adaptive	adaptive	ADJ
dss-287	56	7	optics	optic	NOUN
dss-287	56	8	,	,	PUNCT
dss-287	56	9	dss	dss	NOUN
dss-287	56	10	vol	vol	NOUN
dss-287	56	11	.	.	PROPN
dss-287	57	1	6	6	NUM
dss-287	57	2	,	,	PUNCT
dss-287	57	3	no	no	INTJ
dss-287	57	4	.	.	NOUN
dss-287	57	5	1	1	NUM
dss-287	57	6	,	,	PUNCT
dss-287	57	7	2025	2025	NUM
dss-287	57	8	,	,	PUNCT
dss-287	57	9	pp.49	pp.49	NOUN
dss-287	57	10	-	-	SYM
dss-287	57	11	90	90	NUM
dss-287	57	12	51	51	NUM
dss-287	57	13	reflecting	reflect	VERB
dss-287	57	14	coatings	coating	NOUN
dss-287	57	15	,	,	PUNCT
dss-287	57	16	and	and	CCONJ
dss-287	57	17	ancillary	ancillary	ADJ
dss-287	57	18	equipment	equipment	NOUN
dss-287	57	19	are	be	AUX
dss-287	57	20	also	also	ADV
dss-287	57	21	explored	explore	VERB
dss-287	57	22	.	.	PUNCT
dss-287	58	1	hardy	hardy	PROPN
dss-287	58	2	’s	’s	PART
dss-287	58	3	[	[	X
dss-287	58	4	35	35	NUM
dss-287	58	5	]	]	PUNCT
dss-287	58	6	book	book	NOUN
dss-287	58	7	provides	provide	VERB
dss-287	58	8	an	an	DET
dss-287	58	9	introduction	introduction	NOUN
dss-287	58	10	to	to	ADP
dss-287	58	11	adaptive	adaptive	ADJ
dss-287	58	12	optics	optic	NOUN
dss-287	58	13	(	(	PUNCT
dss-287	58	14	ao	ao	ADJ
dss-287	58	15	)	)	PUNCT
dss-287	58	16	technology	technology	NOUN
dss-287	58	17	,	,	PUNCT
dss-287	58	18	which	which	PRON
dss-287	58	19	is	be	AUX
dss-287	58	20	used	use	VERB
dss-287	58	21	to	to	PART
dss-287	58	22	correct	correct	VERB
dss-287	58	23	distortions	distortion	NOUN
dss-287	58	24	caused	cause	VERB
dss-287	58	25	by	by	ADP
dss-287	58	26	atmospheric	atmospheric	ADJ
dss-287	58	27	turbulence	turbulence	NOUN
dss-287	58	28	in	in	ADP
dss-287	58	29	astronomical	astronomical	ADJ
dss-287	58	30	observations	observation	NOUN
dss-287	58	31	.	.	PUNCT
dss-287	59	1	it	it	PRON
dss-287	59	2	covers	cover	VERB
dss-287	59	3	fundamental	fundamental	ADJ
dss-287	59	4	ao	ao	NOUN
dss-287	59	5	principles	principle	NOUN
dss-287	59	6	,	,	PUNCT
dss-287	59	7	wavefront	wavefront	ADJ
dss-287	59	8	sensing	sensing	NOUN
dss-287	59	9	,	,	PUNCT
dss-287	59	10	deformable	deformable	ADJ
dss-287	59	11	mirrors	mirror	NOUN
dss-287	59	12	,	,	PUNCT
dss-287	59	13	and	and	CCONJ
dss-287	59	14	real	real	ADJ
dss-287	59	15	-	-	PUNCT
dss-287	59	16	time	time	NOUN
dss-287	59	17	control	control	NOUN
dss-287	59	18	systems	system	NOUN
dss-287	59	19	.	.	PUNCT
dss-287	60	1	the	the	DET
dss-287	60	2	book	book	NOUN
dss-287	60	3	is	be	AUX
dss-287	60	4	essential	essential	ADJ
dss-287	60	5	for	for	ADP
dss-287	60	6	researchers	researcher	NOUN
dss-287	60	7	,	,	PUNCT
dss-287	60	8	engineers	engineer	NOUN
dss-287	60	9	,	,	PUNCT
dss-287	60	10	and	and	CCONJ
dss-287	60	11	astronomers	astronomer	NOUN
dss-287	60	12	working	work	VERB
dss-287	60	13	on	on	ADP
dss-287	60	14	highresolution	highresolution	NOUN
dss-287	60	15	imaging	imaging	NOUN
dss-287	60	16	.	.	PUNCT
dss-287	61	1	in	in	ADP
dss-287	61	2	report	report	NOUN
dss-287	61	3	no	no	INTJ
dss-287	61	4	.	.	NOUN
dss-287	62	1	90	90	NUM
dss-287	63	1	[	[	SYM
dss-287	63	2	39	39	NUM
dss-287	63	3	]	]	PUNCT
dss-287	63	4	,	,	PUNCT
dss-287	63	5	one	one	PRON
dss-287	63	6	can	can	AUX
dss-287	63	7	find	find	VERB
dss-287	63	8	the	the	DET
dss-287	63	9	optical	optical	ADJ
dss-287	63	10	design	design	NOUN
dss-287	63	11	details	detail	NOUN
dss-287	63	12	of	of	ADP
dss-287	63	13	the	the	DET
dss-287	63	14	10	10	NUM
dss-287	63	15	-	-	PUNCT
dss-287	63	16	meter	meter	NOUN
dss-287	63	17	telescope	telescope	NOUN
dss-287	63	18	used	use	VERB
dss-287	63	19	in	in	ADP
dss-287	63	20	keck	keck	PROPN
dss-287	63	21	observatory	observatory	NOUN
dss-287	63	22	,	,	PUNCT
dss-287	63	23	among	among	ADP
dss-287	63	24	other	other	ADJ
dss-287	63	25	things	thing	NOUN
dss-287	63	26	discussed	discuss	VERB
dss-287	63	27	.	.	PUNCT
dss-287	64	1	walker	walker	PROPN
dss-287	64	2	’s	’s	PART
dss-287	64	3	[	[	X
dss-287	64	4	7	7	NUM
dss-287	64	5	]	]	X
dss-287	64	6	book	book	NOUN
dss-287	64	7	is	be	AUX
dss-287	64	8	a	a	DET
dss-287	64	9	comprehensive	comprehensive	ADJ
dss-287	64	10	guide	guide	NOUN
dss-287	64	11	that	that	PRON
dss-287	64	12	bridges	bridge	VERB
dss-287	64	13	the	the	DET
dss-287	64	14	fields	field	NOUN
dss-287	64	15	of	of	ADP
dss-287	64	16	optical	optical	ADJ
dss-287	64	17	engineering	engineering	NOUN
dss-287	64	18	and	and	CCONJ
dss-287	64	19	human	human	ADJ
dss-287	64	20	vision	vision	NOUN
dss-287	64	21	;	;	PUNCT
dss-287	64	22	it	it	PRON
dss-287	64	23	shows	show	VERB
dss-287	64	24	the	the	DET
dss-287	64	25	intricate	intricate	ADJ
dss-287	64	26	relationship	relationship	NOUN
dss-287	64	27	between	between	ADP
dss-287	64	28	optical	optical	ADJ
dss-287	64	29	instruments	instrument	NOUN
dss-287	64	30	and	and	CCONJ
dss-287	64	31	the	the	DET
dss-287	64	32	human	human	ADJ
dss-287	64	33	eye	eye	NOUN
dss-287	64	34	,	,	PUNCT
dss-287	64	35	providing	provide	VERB
dss-287	64	36	both	both	DET
dss-287	64	37	theoretical	theoretical	ADJ
dss-287	64	38	insights	insight	NOUN
dss-287	64	39	and	and	CCONJ
dss-287	64	40	practical	practical	ADJ
dss-287	64	41	design	design	NOUN
dss-287	64	42	considerations	consideration	NOUN
dss-287	64	43	.	.	PUNCT
dss-287	65	1	throughout	throughout	ADP
dss-287	65	2	the	the	DET
dss-287	65	3	book	book	NOUN
dss-287	65	4	,	,	PUNCT
dss-287	65	5	walker	walker	PROPN
dss-287	65	6	combines	combine	VERB
dss-287	65	7	clear	clear	ADJ
dss-287	65	8	explanations	explanation	NOUN
dss-287	65	9	with	with	ADP
dss-287	65	10	practical	practical	ADJ
dss-287	65	11	examples	example	NOUN
dss-287	65	12	,	,	PUNCT
dss-287	65	13	making	make	VERB
dss-287	65	14	complex	complex	ADJ
dss-287	65	15	concepts	concept	NOUN
dss-287	65	16	accessible	accessible	ADJ
dss-287	65	17	to	to	ADP
dss-287	65	18	both	both	DET
dss-287	65	19	students	student	NOUN
dss-287	65	20	and	and	CCONJ
dss-287	65	21	practicing	practice	VERB
dss-287	65	22	engineers	engineer	NOUN
dss-287	65	23	.	.	PUNCT
dss-287	66	1	geary	geary	PROPN
dss-287	67	1	[	[	X
dss-287	67	2	8	8	NUM
dss-287	67	3	]	]	PUNCT
dss-287	67	4	wrote	write	VERB
dss-287	67	5	a	a	DET
dss-287	67	6	useful	useful	ADJ
dss-287	67	7	book	book	NOUN
dss-287	67	8	(	(	PUNCT
dss-287	67	9	based	base	VERB
dss-287	67	10	on	on	ADP
dss-287	67	11	an	an	DET
dss-287	67	12	introductory	introductory	ADJ
dss-287	67	13	lens	lens	NOUN
dss-287	67	14	design	design	NOUN
dss-287	67	15	course	course	NOUN
dss-287	67	16	from	from	ADP
dss-287	67	17	the	the	DET
dss-287	67	18	optical	optical	ADJ
dss-287	67	19	science	science	NOUN
dss-287	67	20	&	&	CCONJ
dss-287	67	21	engineering	engineering	PROPN
dss-287	67	22	doctoral	doctoral	ADJ
dss-287	67	23	program	program	NOUN
dss-287	67	24	at	at	ADP
dss-287	67	25	the	the	DET
dss-287	67	26	university	university	PROPN
dss-287	67	27	of	of	ADP
dss-287	67	28	alabama	alabama	PROPN
dss-287	67	29	in	in	ADP
dss-287	67	30	huntsville	huntsville	PROPN
dss-287	67	31	)	)	PUNCT
dss-287	67	32	dealing	deal	VERB
dss-287	67	33	with	with	ADP
dss-287	67	34	lens	lens	NOUN
dss-287	67	35	design	design	NOUN
dss-287	67	36	,	,	PUNCT
dss-287	67	37	rich	rich	ADJ
dss-287	67	38	with	with	ADP
dss-287	67	39	practical	practical	ADJ
dss-287	67	40	work	work	NOUN
dss-287	67	41	(	(	PUNCT
dss-287	67	42	ansys	ansys	PROPN
dss-287	67	43	zemax	zemax	PROPN
dss-287	67	44	)	)	PUNCT
dss-287	67	45	.	.	PUNCT
dss-287	68	1	the	the	DET
dss-287	68	2	book	book	NOUN
dss-287	68	3	offers	offer	VERB
dss-287	68	4	a	a	DET
dss-287	68	5	large	large	ADJ
dss-287	68	6	number	number	NOUN
dss-287	68	7	of	of	ADP
dss-287	68	8	illustrations	illustration	NOUN
dss-287	68	9	,	,	PUNCT
dss-287	68	10	numerous	numerous	ADJ
dss-287	68	11	examples	example	NOUN
dss-287	68	12	,	,	PUNCT
dss-287	68	13	and	and	CCONJ
dss-287	68	14	problem	problem	NOUN
dss-287	68	15	solutions	solution	NOUN
dss-287	68	16	,	,	PUNCT
dss-287	68	17	making	make	VERB
dss-287	68	18	it	it	PRON
dss-287	68	19	suitable	suitable	ADJ
dss-287	68	20	for	for	ADP
dss-287	68	21	both	both	DET
dss-287	68	22	self	self	NOUN
dss-287	68	23	-	-	PUNCT
dss-287	68	24	study	study	NOUN
dss-287	68	25	and	and	CCONJ
dss-287	68	26	as	as	ADP
dss-287	68	27	a	a	DET
dss-287	68	28	comprehensive	comprehensive	ADJ
dss-287	68	29	introductory	introductory	NOUN
dss-287	68	30	text	text	NOUN
dss-287	68	31	.	.	PUNCT
dss-287	69	1	smith	smith	PROPN
dss-287	69	2	’s	’s	PART
dss-287	70	1	[	[	X
dss-287	70	2	9	9	NUM
dss-287	70	3	]	]	PUNCT
dss-287	70	4	book	book	NOUN
dss-287	70	5	is	be	AUX
dss-287	70	6	a	a	DET
dss-287	70	7	comprehensive	comprehensive	ADJ
dss-287	70	8	guide	guide	NOUN
dss-287	70	9	that	that	PRON
dss-287	70	10	delves	delve	VERB
dss-287	70	11	into	into	ADP
dss-287	70	12	the	the	DET
dss-287	70	13	methodologies	methodology	NOUN
dss-287	70	14	and	and	CCONJ
dss-287	70	15	applications	application	NOUN
dss-287	70	16	of	of	ADP
dss-287	70	17	designing	design	VERB
dss-287	70	18	optical	optical	ADJ
dss-287	70	19	systems	system	NOUN
dss-287	70	20	using	use	VERB
dss-287	70	21	computer	computer	NOUN
dss-287	70	22	-	-	PUNCT
dss-287	70	23	aided	aid	VERB
dss-287	70	24	tools	tool	NOUN
dss-287	70	25	.	.	PUNCT
dss-287	71	1	throughout	throughout	ADP
dss-287	71	2	the	the	DET
dss-287	71	3	book	book	NOUN
dss-287	71	4	,	,	PUNCT
dss-287	71	5	smith	smith	PROPN
dss-287	71	6	adopts	adopt	VERB
dss-287	71	7	a	a	DET
dss-287	71	8	practical	practical	ADJ
dss-287	71	9	and	and	CCONJ
dss-287	71	10	intuitive	intuitive	ADJ
dss-287	71	11	approach	approach	NOUN
dss-287	71	12	,	,	PUNCT
dss-287	71	13	minimizing	minimize	VERB
dss-287	71	14	complex	complex	ADJ
dss-287	71	15	mathematics	mathematic	NOUN
dss-287	71	16	to	to	PART
dss-287	71	17	make	make	VERB
dss-287	71	18	the	the	DET
dss-287	71	19	content	content	NOUN
dss-287	71	20	accessible	accessible	ADJ
dss-287	71	21	.	.	PUNCT
dss-287	72	1	the	the	DET
dss-287	72	2	inclusion	inclusion	NOUN
dss-287	72	3	of	of	ADP
dss-287	72	4	numerous	numerous	ADJ
dss-287	72	5	illustrations	illustration	NOUN
dss-287	72	6	and	and	CCONJ
dss-287	72	7	problem	problem	NOUN
dss-287	72	8	solutions	solution	NOUN
dss-287	72	9	enhances	enhance	VERB
dss-287	72	10	comprehension	comprehension	NOUN
dss-287	72	11	,	,	PUNCT
dss-287	72	12	making	make	VERB
dss-287	72	13	it	it	PRON
dss-287	72	14	suitable	suitable	ADJ
dss-287	72	15	for	for	ADP
dss-287	72	16	self	self	NOUN
dss-287	72	17	-	-	PUNCT
dss-287	72	18	study	study	NOUN
dss-287	72	19	or	or	CCONJ
dss-287	72	20	as	as	ADP
dss-287	72	21	a	a	DET
dss-287	72	22	course	course	NOUN
dss-287	72	23	textbook	textbook	NOUN
dss-287	72	24	.	.	PUNCT
dss-287	73	1	o'shea	o'shea	PROPN
dss-287	73	2	and	and	CCONJ
dss-287	73	3	bentley	bentley	PROPN
dss-287	74	1	[	[	X
dss-287	74	2	10	10	NUM
dss-287	74	3	]	]	PUNCT
dss-287	74	4	wrote	write	VERB
dss-287	74	5	an	an	DET
dss-287	74	6	excellent	excellent	ADJ
dss-287	74	7	book	book	NOUN
dss-287	74	8	that	that	PRON
dss-287	74	9	demonstrates	demonstrate	VERB
dss-287	74	10	the	the	DET
dss-287	74	11	process	process	NOUN
dss-287	74	12	of	of	ADP
dss-287	74	13	designing	design	VERB
dss-287	74	14	optical	optical	ADJ
dss-287	74	15	systems	system	NOUN
dss-287	74	16	using	use	VERB
dss-287	74	17	ansys	ansys	PROPN
dss-287	74	18	zemax	zemax	PROPN
dss-287	74	19	,	,	PUNCT
dss-287	74	20	a	a	DET
dss-287	74	21	leading	lead	VERB
dss-287	74	22	optical	optical	ADJ
dss-287	74	23	design	design	NOUN
dss-287	74	24	software	software	NOUN
dss-287	74	25	.	.	PUNCT
dss-287	75	1	published	publish	VERB
dss-287	75	2	in	in	ADP
dss-287	75	3	2024	2024	NUM
dss-287	75	4	,	,	PUNCT
dss-287	75	5	this	this	DET
dss-287	75	6	book	book	NOUN
dss-287	75	7	offers	offer	VERB
dss-287	75	8	a	a	DET
dss-287	75	9	step	step	NOUN
dss-287	75	10	-	-	PUNCT
dss-287	75	11	by	by	ADP
dss-287	75	12	-	-	PUNCT
dss-287	75	13	step	step	NOUN
dss-287	75	14	approach	approach	NOUN
dss-287	75	15	to	to	ADP
dss-287	75	16	different	different	ADJ
dss-287	75	17	lens	lens	NOUN
dss-287	75	18	designs	design	NOUN
dss-287	75	19	,	,	PUNCT
dss-287	75	20	from	from	ADP
dss-287	75	21	initial	initial	ADJ
dss-287	75	22	definition	definition	NOUN
dss-287	75	23	through	through	ADP
dss-287	75	24	performance	performance	NOUN
dss-287	75	25	analysis	analysis	NOUN
dss-287	75	26	and	and	CCONJ
dss-287	75	27	tolerancing	tolerancing	NOUN
dss-287	75	28	.	.	PUNCT
dss-287	76	1	korsch	korsch	PROPN
dss-287	76	2	’s	’s	PART
dss-287	77	1	[	[	X
dss-287	77	2	70	70	NUM
dss-287	77	3	]	]	X
dss-287	77	4	"	"	PUNCT
dss-287	77	5	reflective	reflective	ADJ
dss-287	77	6	optics	optic	NOUN
dss-287	77	7	"	"	PUNCT
dss-287	77	8	is	be	AUX
dss-287	77	9	a	a	DET
dss-287	77	10	foundational	foundational	ADJ
dss-287	77	11	book	book	NOUN
dss-287	77	12	focusing	focus	VERB
dss-287	77	13	on	on	ADP
dss-287	77	14	the	the	DET
dss-287	77	15	theory	theory	NOUN
dss-287	77	16	,	,	PUNCT
dss-287	77	17	design	design	NOUN
dss-287	77	18	,	,	PUNCT
dss-287	77	19	and	and	CCONJ
dss-287	77	20	practical	practical	ADJ
dss-287	77	21	applications	application	NOUN
dss-287	77	22	of	of	ADP
dss-287	77	23	reflective	reflective	ADJ
dss-287	77	24	optical	optical	ADJ
dss-287	77	25	systems	system	NOUN
dss-287	77	26	,	,	PUNCT
dss-287	77	27	especially	especially	ADV
dss-287	77	28	those	those	PRON
dss-287	77	29	used	use	VERB
dss-287	77	30	in	in	ADP
dss-287	77	31	astronomical	astronomical	ADJ
dss-287	77	32	telescopes	telescope	NOUN
dss-287	77	33	,	,	PUNCT
dss-287	77	34	space	space	NOUN
dss-287	77	35	optics	optic	NOUN
dss-287	77	36	,	,	PUNCT
dss-287	77	37	and	and	CCONJ
dss-287	77	38	high	high	ADJ
dss-287	77	39	-	-	PUNCT
dss-287	77	40	resolution	resolution	NOUN
dss-287	77	41	imaging	imaging	NOUN
dss-287	77	42	systems	system	NOUN
dss-287	77	43	.	.	PUNCT
dss-287	78	1	unlike	unlike	ADP
dss-287	78	2	refractive	refractive	ADJ
dss-287	78	3	optics	optic	NOUN
dss-287	78	4	,	,	PUNCT
dss-287	78	5	reflective	reflective	ADJ
dss-287	78	6	systems	system	NOUN
dss-287	78	7	rely	rely	VERB
dss-287	78	8	entirely	entirely	ADV
dss-287	78	9	on	on	ADP
dss-287	78	10	mirrors	mirror	NOUN
dss-287	78	11	,	,	PUNCT
dss-287	78	12	which	which	PRON
dss-287	78	13	are	be	AUX
dss-287	78	14	important	important	ADJ
dss-287	78	15	in	in	ADP
dss-287	78	16	situations	situation	NOUN
dss-287	78	17	where	where	SCONJ
dss-287	78	18	chromatic	chromatic	ADJ
dss-287	78	19	aberration	aberration	NOUN
dss-287	78	20	must	must	AUX
dss-287	78	21	be	be	AUX
dss-287	78	22	avoided	avoid	VERB
dss-287	78	23	or	or	CCONJ
dss-287	78	24	where	where	SCONJ
dss-287	78	25	wide	wide	ADJ
dss-287	78	26	wavelength	wavelength	NOUN
dss-287	78	27	ranges	range	NOUN
dss-287	78	28	are	be	AUX
dss-287	78	29	used	use	VERB
dss-287	78	30	.	.	PUNCT
dss-287	79	1	oswalt	oswalt	PROPN
dss-287	79	2	made	make	VERB
dss-287	79	3	[	[	X
dss-287	79	4	71	71	NUM
dss-287	79	5	]	]	PUNCT
dss-287	79	6	is	be	AUX
dss-287	79	7	a	a	DET
dss-287	79	8	comprehensive	comprehensive	ADJ
dss-287	79	9	book	book	NOUN
dss-287	79	10	that	that	PRON
dss-287	79	11	offers	offer	VERB
dss-287	79	12	an	an	DET
dss-287	79	13	in	in	ADP
dss-287	79	14	-	-	PUNCT
dss-287	79	15	depth	depth	NOUN
dss-287	79	16	exploration	exploration	NOUN
dss-287	79	17	of	of	ADP
dss-287	79	18	the	the	DET
dss-287	79	19	instruments	instrument	NOUN
dss-287	79	20	and	and	CCONJ
dss-287	79	21	techniques	technique	NOUN
dss-287	79	22	that	that	PRON
dss-287	79	23	have	have	AUX
dss-287	79	24	revolutionized	revolutionize	VERB
dss-287	79	25	our	our	PRON
dss-287	79	26	understanding	understanding	NOUN
dss-287	79	27	of	of	ADP
dss-287	79	28	the	the	DET
dss-287	79	29	universe	universe	NOUN
dss-287	79	30	,	,	PUNCT
dss-287	79	31	and	and	CCONJ
dss-287	79	32	encompasses	encompass	VERB
dss-287	79	33	a	a	DET
dss-287	79	34	wide	wide	ADJ
dss-287	79	35	range	range	NOUN
dss-287	79	36	of	of	ADP
dss-287	79	37	topics	topic	NOUN
dss-287	79	38	,	,	PUNCT
dss-287	79	39	from	from	ADP
dss-287	79	40	traditional	traditional	ADJ
dss-287	79	41	optical	optical	ADJ
dss-287	79	42	telescopes	telescope	NOUN
dss-287	79	43	to	to	ADP
dss-287	79	44	cutting	cut	VERB
dss-287	79	45	-	-	PUNCT
dss-287	79	46	edge	edge	NOUN
dss-287	79	47	spacebased	spacebased	ADJ
dss-287	79	48	observatories	observatory	NOUN
dss-287	79	49	,	,	PUNCT
dss-287	79	50	providing	provide	VERB
dss-287	79	51	readers	reader	NOUN
dss-287	79	52	with	with	ADP
dss-287	79	53	a	a	DET
dss-287	79	54	holistic	holistic	ADJ
dss-287	79	55	view	view	NOUN
dss-287	79	56	of	of	ADP
dss-287	79	57	contemporary	contemporary	ADJ
dss-287	79	58	astronomical	astronomical	ADJ
dss-287	79	59	instrumentation	instrumentation	NOUN
dss-287	79	60	.	.	PUNCT
dss-287	80	1	among	among	ADP
dss-287	80	2	several	several	ADJ
dss-287	80	3	books	book	NOUN
dss-287	80	4	in	in	ADP
dss-287	80	5	the	the	DET
dss-287	80	6	field	field	NOUN
dss-287	80	7	of	of	ADP
dss-287	80	8	amateur	amateur	ADJ
dss-287	80	9	telescope	telescope	NOUN
dss-287	80	10	-	-	PUNCT
dss-287	80	11	making	making	NOUN
dss-287	80	12	,	,	PUNCT
dss-287	80	13	a	a	DET
dss-287	80	14	few	few	ADJ
dss-287	80	15	dozen	dozen	NOUN
dss-287	80	16	stand	stand	VERB
dss-287	80	17	out	out	ADP
dss-287	80	18	.	.	PUNCT
dss-287	81	1	suiter	suiter	NOUN
dss-287	81	2	’s	’s	PART
dss-287	81	3	[	[	X
dss-287	81	4	11	11	NUM
dss-287	81	5	]	]	PUNCT
dss-287	81	6	book	book	NOUN
dss-287	81	7	is	be	AUX
dss-287	81	8	a	a	DET
dss-287	81	9	comprehensive	comprehensive	ADJ
dss-287	81	10	guide	guide	NOUN
dss-287	81	11	that	that	PRON
dss-287	81	12	delves	delve	VERB
dss-287	81	13	into	into	ADP
dss-287	81	14	the	the	DET
dss-287	81	15	star	star	NOUN
dss-287	81	16	test	test	NOUN
dss-287	81	17	method	method	NOUN
dss-287	81	18	,	,	PUNCT
dss-287	81	19	a	a	DET
dss-287	81	20	powerful	powerful	ADJ
dss-287	81	21	technique	technique	NOUN
dss-287	81	22	for	for	ADP
dss-287	81	23	assessing	assess	VERB
dss-287	81	24	and	and	CCONJ
dss-287	81	25	diagnosing	diagnose	VERB
dss-287	81	26	the	the	DET
dss-287	81	27	optical	optical	ADJ
dss-287	81	28	performance	performance	NOUN
dss-287	81	29	of	of	ADP
dss-287	81	30	different	different	ADJ
dss-287	81	31	telescopes	telescope	NOUN
dss-287	81	32	directly	directly	ADV
dss-287	81	33	under	under	ADP
dss-287	81	34	the	the	DET
dss-287	81	35	night	night	NOUN
dss-287	81	36	sky	sky	NOUN
dss-287	81	37	.	.	PUNCT
dss-287	82	1	this	this	DET
dss-287	82	2	manual	manual	NOUN
dss-287	82	3	is	be	AUX
dss-287	82	4	particularly	particularly	ADV
dss-287	82	5	valuable	valuable	ADJ
dss-287	82	6	for	for	ADP
dss-287	82	7	amateur	amateur	ADJ
dss-287	82	8	astronomers	astronomer	NOUN
dss-287	82	9	and	and	CCONJ
dss-287	82	10	telescope	telescope	NOUN
dss-287	82	11	enthusiasts	enthusiast	NOUN
dss-287	82	12	seeking	seek	VERB
dss-287	82	13	to	to	PART
dss-287	82	14	evaluate	evaluate	VERB
dss-287	82	15	and	and	CCONJ
dss-287	82	16	enhance	enhance	VERB
dss-287	82	17	their	their	PRON
dss-287	82	18	instruments	instrument	NOUN
dss-287	82	19	without	without	ADP
dss-287	82	20	relying	rely	VERB
dss-287	82	21	on	on	ADP
dss-287	82	22	complex	complex	ADJ
dss-287	82	23	equipment	equipment	NOUN
dss-287	82	24	.	.	PUNCT
dss-287	83	1	allan	allan	PROPN
dss-287	83	2	mackintosh	mackintosh	PROPN
dss-287	83	3	compiled	compile	VERB
dss-287	84	1	[	[	X
dss-287	84	2	12,13	12,13	NUM
dss-287	84	3	]	]	PUNCT
dss-287	84	4	a	a	DET
dss-287	84	5	two	two	NUM
dss-287	84	6	-	-	PUNCT
dss-287	84	7	volume	volume	NOUN
dss-287	84	8	series	series	NOUN
dss-287	84	9	,	,	PUNCT
dss-287	84	10	based	base	VERB
dss-287	84	11	on	on	ADP
dss-287	84	12	selected	select	VERB
dss-287	84	13	articles	article	NOUN
dss-287	84	14	from	from	ADP
dss-287	84	15	the	the	DET
dss-287	84	16	maksutov	maksutov	NOUN
dss-287	84	17	circulars	circular	NOUN
dss-287	84	18	,	,	PUNCT
dss-287	84	19	a	a	DET
dss-287	84	20	newsletter	newsletter	NOUN
dss-287	84	21	distributed	distribute	VERB
dss-287	84	22	over	over	ADP
dss-287	84	23	21	21	NUM
dss-287	84	24	years	year	NOUN
dss-287	84	25	to	to	ADP
dss-287	84	26	members	member	NOUN
dss-287	84	27	of	of	ADP
dss-287	84	28	the	the	DET
dss-287	84	29	maksutov	maksutov	NOUN
dss-287	84	30	club	club	NOUN
dss-287	84	31	.	.	PUNCT
dss-287	85	1	these	these	DET
dss-287	85	2	volumes	volume	NOUN
dss-287	85	3	serve	serve	VERB
dss-287	85	4	as	as	ADP
dss-287	85	5	guides	guide	NOUN
dss-287	85	6	for	for	ADP
dss-287	85	7	amateur	amateur	ADJ
dss-287	85	8	and	and	CCONJ
dss-287	85	9	professional	professional	ADJ
dss-287	85	10	telescope	telescope	NOUN
dss-287	85	11	makers	maker	NOUN
dss-287	85	12	,	,	PUNCT
dss-287	85	13	offering	offer	VERB
dss-287	85	14	indepth	indepth	ADJ
dss-287	85	15	insights	insight	NOUN
dss-287	85	16	into	into	ADP
dss-287	85	17	both	both	CCONJ
dss-287	85	18	the	the	DET
dss-287	85	19	optical	optical	ADJ
dss-287	85	20	and	and	CCONJ
dss-287	85	21	mechanical	mechanical	ADJ
dss-287	85	22	aspects	aspect	NOUN
dss-287	85	23	of	of	ADP
dss-287	85	24	telescope	telescope	NOUN
dss-287	85	25	construction	construction	NOUN
dss-287	85	26	and	and	CCONJ
dss-287	85	27	enhancement	enhancement	NOUN
dss-287	85	28	.	.	PUNCT
dss-287	86	1	texereau	texereau	NOUN
dss-287	87	1	[	[	X
dss-287	87	2	14	14	NUM
dss-287	87	3	]	]	PUNCT
dss-287	87	4	wrote	write	VERB
dss-287	87	5	a	a	DET
dss-287	87	6	classic	classic	ADJ
dss-287	87	7	guide	guide	NOUN
dss-287	87	8	for	for	ADP
dss-287	87	9	amateur	amateur	ADJ
dss-287	87	10	telescope	telescope	NOUN
dss-287	87	11	makers	maker	NOUN
dss-287	87	12	.	.	PUNCT
dss-287	88	1	the	the	DET
dss-287	88	2	book	book	NOUN
dss-287	88	3	provides	provide	VERB
dss-287	88	4	step	step	NOUN
dss-287	88	5	-	-	PUNCT
dss-287	88	6	by	by	ADP
dss-287	88	7	-	-	PUNCT
dss-287	88	8	step	step	NOUN
dss-287	88	9	instructions	instruction	NOUN
dss-287	88	10	on	on	ADP
dss-287	88	11	grinding	grind	VERB
dss-287	88	12	,	,	PUNCT
dss-287	88	13	polishing	polishing	NOUN
dss-287	88	14	,	,	PUNCT
dss-287	88	15	and	and	CCONJ
dss-287	88	16	testing	testing	NOUN
dss-287	88	17	telescope	telescope	NOUN
dss-287	88	18	mirrors	mirror	NOUN
dss-287	88	19	,	,	PUNCT
dss-287	88	20	as	as	ADV
dss-287	88	21	well	well	ADV
dss-287	88	22	as	as	ADP
dss-287	88	23	constructing	construct	VERB
dss-287	88	24	telescope	telescope	NOUN
dss-287	88	25	mounts	mount	NOUN
dss-287	88	26	and	and	CCONJ
dss-287	88	27	other	other	ADJ
dss-287	88	28	essential	essential	ADJ
dss-287	88	29	components	component	NOUN
dss-287	88	30	.	.	PUNCT
dss-287	89	1	it	it	PRON
dss-287	89	2	covers	cover	VERB
dss-287	89	3	optical	optical	ADJ
dss-287	89	4	theory	theory	NOUN
dss-287	89	5	,	,	PUNCT
dss-287	89	6	material	material	NOUN
dss-287	89	7	selection	selection	NOUN
dss-287	89	8	,	,	PUNCT
dss-287	89	9	and	and	CCONJ
dss-287	89	10	practical	practical	ADJ
dss-287	89	11	techniques	technique	NOUN
dss-287	89	12	to	to	PART
dss-287	89	13	help	help	VERB
dss-287	89	14	enthusiasts	enthusiast	NOUN
dss-287	89	15	build	build	VERB
dss-287	89	16	high	high	ADJ
dss-287	89	17	-	-	PUNCT
dss-287	89	18	quality	quality	NOUN
dss-287	89	19	reflecting	reflect	VERB
dss-287	89	20	telescopes	telescope	NOUN
dss-287	89	21	.	.	PUNCT
dss-287	90	1	the	the	DET
dss-287	90	2	book	book	NOUN
dss-287	90	3	remains	remain	VERB
dss-287	90	4	a	a	DET
dss-287	90	5	fundamental	fundamental	ADJ
dss-287	90	6	resource	resource	NOUN
dss-287	90	7	for	for	ADP
dss-287	90	8	those	those	PRON
dss-287	90	9	interested	interested	ADJ
dss-287	90	10	in	in	ADP
dss-287	90	11	hands	hand	NOUN
dss-287	90	12	-	-	PUNCT
dss-287	90	13	on	on	ADP
dss-287	90	14	telescope	telescope	NOUN
dss-287	90	15	fabrication	fabrication	NOUN
dss-287	90	16	.	.	PUNCT
dss-287	91	1	tonkin	tonkin	PROPN
dss-287	92	1	[	[	X
dss-287	92	2	15	15	NUM
dss-287	92	3	]	]	PUNCT
dss-287	92	4	edited	edit	VERB
dss-287	92	5	a	a	DET
dss-287	92	6	guide	guide	NOUN
dss-287	92	7	that	that	PRON
dss-287	92	8	compiles	compile	VERB
dss-287	92	9	practical	practical	ADJ
dss-287	92	10	knowledge	knowledge	NOUN
dss-287	92	11	and	and	CCONJ
dss-287	92	12	techniques	technique	NOUN
dss-287	92	13	for	for	ADP
dss-287	92	14	constructing	construct	VERB
dss-287	92	15	telescopes	telescope	NOUN
dss-287	92	16	.	.	PUNCT
dss-287	93	1	it	it	PRON
dss-287	93	2	includes	include	VERB
dss-287	93	3	contributions	contribution	NOUN
dss-287	93	4	from	from	ADP
dss-287	93	5	experienced	experienced	ADJ
dss-287	93	6	telescope	telescope	NOUN
dss-287	93	7	makers	maker	NOUN
dss-287	93	8	,	,	PUNCT
dss-287	93	9	covering	cover	VERB
dss-287	93	10	topics	topic	NOUN
dss-287	93	11	such	such	ADJ
dss-287	93	12	as	as	ADP
dss-287	93	13	grinding	grind	VERB
dss-287	93	14	and	and	CCONJ
dss-287	93	15	polishing	polish	VERB
dss-287	93	16	mirrors	mirror	NOUN
dss-287	93	17	,	,	PUNCT
dss-287	93	18	assembling	assemble	VERB
dss-287	93	19	mounts	mount	NOUN
dss-287	93	20	,	,	PUNCT
dss-287	93	21	and	and	CCONJ
dss-287	93	22	optimizing	optimize	VERB
dss-287	93	23	optical	optical	ADJ
dss-287	93	24	performance	performance	NOUN
dss-287	93	25	.	.	PUNCT
dss-287	94	1	the	the	DET
dss-287	94	2	book	book	NOUN
dss-287	94	3	provides	provide	VERB
dss-287	94	4	step	step	NOUN
dss-287	94	5	-	-	PUNCT
dss-287	94	6	by	by	ADP
dss-287	94	7	-	-	PUNCT
dss-287	94	8	step	step	NOUN
dss-287	94	9	instructions	instruction	NOUN
dss-287	94	10	,	,	PUNCT
dss-287	94	11	technical	technical	ADJ
dss-287	94	12	insights	insight	NOUN
dss-287	94	13	,	,	PUNCT
dss-287	94	14	and	and	CCONJ
dss-287	94	15	hands	hand	NOUN
dss-287	94	16	-	-	PUNCT
dss-287	94	17	on	on	ADP
dss-287	94	18	guidance	guidance	NOUN
dss-287	94	19	for	for	ADP
dss-287	94	20	hobbyists	hobbyist	NOUN
dss-287	94	21	looking	look	VERB
dss-287	94	22	to	to	PART
dss-287	94	23	build	build	VERB
dss-287	94	24	and	and	CCONJ
dss-287	94	25	refine	refine	VERB
dss-287	94	26	their	their	PRON
dss-287	94	27	telescopes	telescope	NOUN
dss-287	94	28	.	.	PUNCT
dss-287	95	1	it	it	PRON
dss-287	95	2	serves	serve	VERB
dss-287	95	3	as	as	ADP
dss-287	95	4	an	an	DET
dss-287	95	5	essential	essential	ADJ
dss-287	95	6	resource	resource	NOUN
dss-287	95	7	for	for	ADP
dss-287	95	8	amateur	amateur	ADJ
dss-287	95	9	astronomers	astronomer	NOUN
dss-287	95	10	and	and	CCONJ
dss-287	95	11	diy	diy	NOUN
dss-287	95	12	telescope	telescope	NOUN
dss-287	95	13	enthusiasts	enthusiast	NOUN
dss-287	95	14	.	.	PUNCT
dss-287	96	1	clark	clark	PROPN
dss-287	97	1	[	[	X
dss-287	97	2	16	16	NUM
dss-287	97	3	]	]	PUNCT
dss-287	97	4	provided	provide	VERB
dss-287	97	5	a	a	DET
dss-287	97	6	practical	practical	ADJ
dss-287	97	7	guide	guide	NOUN
dss-287	97	8	for	for	ADP
dss-287	97	9	modern	modern	ADJ
dss-287	97	10	-	-	PUNCT
dss-287	97	11	day	day	NOUN
dss-287	97	12	telescope	telescope	NOUN
dss-287	97	13	makers	maker	NOUN
dss-287	97	14	,	,	PUNCT
dss-287	97	15	focusing	focus	VERB
dss-287	97	16	on	on	ADP
dss-287	97	17	how	how	SCONJ
dss-287	97	18	to	to	PART
dss-287	97	19	leverage	leverage	VERB
dss-287	97	20	the	the	DET
dss-287	97	21	internet	internet	NOUN
dss-287	97	22	for	for	ADP
dss-287	97	23	sourcing	source	VERB
dss-287	97	24	materials	material	NOUN
dss-287	97	25	,	,	PUNCT
dss-287	97	26	obtaining	obtain	VERB
dss-287	97	27	advice	advice	NOUN
dss-287	97	28	,	,	PUNCT
dss-287	97	29	and	and	CCONJ
dss-287	97	30	connecting	connect	VERB
dss-287	97	31	with	with	ADP
dss-287	97	32	the	the	DET
dss-287	97	33	global	global	ADJ
dss-287	97	34	community	community	NOUN
dss-287	97	35	of	of	ADP
dss-287	97	36	amateur	amateur	NOUN
dss-287	97	37	astronomers	astronomer	NOUN
dss-287	97	38	.	.	PUNCT
dss-287	98	1	the	the	DET
dss-287	98	2	book	book	NOUN
dss-287	98	3	provides	provide	VERB
dss-287	98	4	insights	insight	NOUN
dss-287	98	5	into	into	ADP
dss-287	98	6	using	use	VERB
dss-287	98	7	online	online	ADJ
dss-287	98	8	resources	resource	NOUN
dss-287	98	9	to	to	PART
dss-287	98	10	find	find	VERB
dss-287	98	11	parts	part	NOUN
dss-287	98	12	,	,	PUNCT
dss-287	98	13	tools	tool	NOUN
dss-287	98	14	,	,	PUNCT
dss-287	98	15	and	and	CCONJ
dss-287	98	16	information	information	NOUN
dss-287	98	17	for	for	ADP
dss-287	98	18	building	building	NOUN
dss-287	98	19	telescopes	telescope	NOUN
dss-287	98	20	,	,	PUNCT
dss-287	98	21	as	as	ADV
dss-287	98	22	well	well	ADV
dss-287	98	23	as	as	ADP
dss-287	98	24	how	how	SCONJ
dss-287	98	25	to	to	PART
dss-287	98	26	troubleshoot	troubleshoot	VERB
dss-287	98	27	and	and	CCONJ
dss-287	98	28	get	get	VERB
dss-287	98	29	expert	expert	ADJ
dss-287	98	30	help	help	NOUN
dss-287	98	31	.	.	PUNCT
dss-287	99	1	it	it	PRON
dss-287	99	2	also	also	ADV
dss-287	99	3	includes	include	VERB
dss-287	99	4	tips	tip	NOUN
dss-287	99	5	on	on	ADP
dss-287	99	6	joining	join	VERB
dss-287	99	7	online	online	ADJ
dss-287	99	8	forums	forum	NOUN
dss-287	99	9	,	,	PUNCT
dss-287	99	10	participating	participate	VERB
dss-287	99	11	in	in	ADP
dss-287	99	12	virtual	virtual	ADJ
dss-287	99	13	workshops	workshop	NOUN
dss-287	99	14	,	,	PUNCT
dss-287	99	15	and	and	CCONJ
dss-287	99	16	using	use	VERB
dss-287	99	17	digital	digital	ADJ
dss-287	99	18	tools	tool	NOUN
dss-287	99	19	for	for	ADP
dss-287	99	20	design	design	NOUN
dss-287	99	21	and	and	CCONJ
dss-287	99	22	testing	testing	NOUN
dss-287	99	23	.	.	PUNCT
dss-287	100	1	jim	jim	PROPN
dss-287	100	2	and	and	CCONJ
dss-287	100	3	dennis	dennis	PROPN
dss-287	100	4	kriege	kriege	PROPN
dss-287	101	1	[	[	X
dss-287	101	2	17	17	NUM
dss-287	101	3	]	]	PUNCT
dss-287	101	4	wrote	write	VERB
dss-287	101	5	a	a	DET
dss-287	101	6	comprehensive	comprehensive	ADJ
dss-287	101	7	guide	guide	NOUN
dss-287	101	8	to	to	ADP
dss-287	101	9	building	build	VERB
dss-287	101	10	and	and	CCONJ
dss-287	101	11	using	use	VERB
dss-287	101	12	dobsonian	dobsonian	ADJ
dss-287	101	13	telescopes	telescope	NOUN
dss-287	101	14	,	,	PUNCT
dss-287	101	15	which	which	PRON
dss-287	101	16	are	be	AUX
dss-287	101	17	known	know	VERB
dss-287	101	18	for	for	ADP
dss-287	101	19	their	their	PRON
dss-287	101	20	simplicity	simplicity	NOUN
dss-287	101	21	,	,	PUNCT
dss-287	101	22	stability	stability	NOUN
dss-287	101	23	,	,	PUNCT
dss-287	101	24	and	and	CCONJ
dss-287	101	25	excellent	excellent	ADJ
dss-287	101	26	performance	performance	NOUN
dss-287	101	27	in	in	ADP
dss-287	101	28	amateur	amateur	ADJ
dss-287	101	29	astronomy	astronomy	NOUN
dss-287	101	30	.	.	PUNCT
dss-287	102	1	the	the	DET
dss-287	102	2	book	book	NOUN
dss-287	102	3	covers	cover	VERB
dss-287	102	4	everything	everything	PRON
dss-287	102	5	from	from	ADP
dss-287	102	6	the	the	DET
dss-287	102	7	basic	basic	ADJ
dss-287	102	8	principles	principle	NOUN
dss-287	102	9	of	of	ADP
dss-287	102	10	telescope	telescope	NOUN
dss-287	102	11	design	design	NOUN
dss-287	102	12	to	to	ADP
dss-287	102	13	step	step	NOUN
dss-287	102	14	-	-	PUNCT
dss-287	102	15	by	by	ADP
dss-287	102	16	-	-	PUNCT
dss-287	102	17	step	step	NOUN
dss-287	102	18	instructions	instruction	NOUN
dss-287	102	19	on	on	ADP
dss-287	102	20	constructing	construct	VERB
dss-287	102	21	a	a	DET
dss-287	102	22	dobsonian	dobsonian	ADJ
dss-287	102	23	mount	mount	NOUN
dss-287	102	24	and	and	CCONJ
dss-287	102	25	optimizing	optimize	VERB
dss-287	102	26	the	the	DET
dss-287	102	27	optical	optical	ADJ
dss-287	102	28	system	system	NOUN
dss-287	102	29	.	.	PUNCT
dss-287	103	1	it	it	PRON
dss-287	103	2	provides	provide	VERB
dss-287	103	3	practical	practical	ADJ
dss-287	103	4	advice	advice	NOUN
dss-287	103	5	on	on	ADP
dss-287	103	6	materials	material	NOUN
dss-287	103	7	,	,	PUNCT
dss-287	103	8	tools	tool	NOUN
dss-287	103	9	,	,	PUNCT
dss-287	103	10	and	and	CCONJ
dss-287	103	11	techniques	technique	NOUN
dss-287	103	12	,	,	PUNCT
dss-287	103	13	making	make	VERB
dss-287	103	14	it	it	PRON
dss-287	103	15	an	an	DET
dss-287	103	16	invaluable	invaluable	ADJ
dss-287	103	17	resource	resource	NOUN
dss-287	103	18	for	for	ADP
dss-287	103	19	amateur	amateur	ADJ
dss-287	103	20	astronomers	astronomer	NOUN
dss-287	103	21	interested	interested	ADJ
dss-287	103	22	in	in	ADP
dss-287	103	23	creating	create	VERB
dss-287	103	24	their	their	PRON
dss-287	103	25	own	own	ADJ
dss-287	103	26	large	large	ADJ
dss-287	103	27	,	,	PUNCT
dss-287	103	28	dss	dss	NOUN
dss-287	103	29	vol	vol	NOUN
dss-287	103	30	.	.	PROPN
dss-287	104	1	6	6	NUM
dss-287	104	2	,	,	PUNCT
dss-287	104	3	no	no	INTJ
dss-287	104	4	.	.	NOUN
dss-287	104	5	1	1	NUM
dss-287	104	6	,	,	PUNCT
dss-287	104	7	2025	2025	NUM
dss-287	104	8	,	,	PUNCT
dss-287	104	9	pp.49	pp.49	NOUN
dss-287	104	10	-	-	SYM
dss-287	104	11	90	90	NUM
dss-287	104	12	52	52	NUM
dss-287	104	13	easy	easy	ADJ
dss-287	104	14	-	-	PUNCT
dss-287	104	15	to	to	ADP
dss-287	104	16	-	-	PUNCT
dss-287	104	17	use	use	NOUN
dss-287	104	18	telescopes	telescope	NOUN
dss-287	104	19	.	.	PUNCT
dss-287	105	1	ingalls	ingall	NOUN
dss-287	106	1	[	[	X
dss-287	106	2	18,19,20	18,19,20	NUM
dss-287	106	3	]	]	PUNCT
dss-287	106	4	wrote	write	VERB
dss-287	106	5	three	three	NUM
dss-287	106	6	volumes	volume	NOUN
dss-287	106	7	,	,	PUNCT
dss-287	106	8	each	each	PRON
dss-287	106	9	offering	offer	VERB
dss-287	106	10	practical	practical	ADJ
dss-287	106	11	guidance	guidance	NOUN
dss-287	106	12	on	on	ADP
dss-287	106	13	designing	designing	NOUN
dss-287	106	14	,	,	PUNCT
dss-287	106	15	building	building	NOUN
dss-287	106	16	,	,	PUNCT
dss-287	106	17	and	and	CCONJ
dss-287	106	18	testing	testing	NOUN
dss-287	106	19	telescopes	telescope	NOUN
dss-287	106	20	,	,	PUNCT
dss-287	106	21	primarily	primarily	ADV
dss-287	106	22	aimed	aim	VERB
dss-287	106	23	at	at	ADP
dss-287	106	24	amateur	amateur	ADJ
dss-287	106	25	astronomers	astronomer	NOUN
dss-287	106	26	.	.	PUNCT
dss-287	107	1	volume	volume	NOUN
dss-287	107	2	1	1	NUM
dss-287	107	3	introduces	introduce	VERB
dss-287	107	4	the	the	DET
dss-287	107	5	basics	basic	NOUN
dss-287	107	6	of	of	ADP
dss-287	107	7	telescope	telescope	NOUN
dss-287	107	8	making	making	NOUN
dss-287	107	9	,	,	PUNCT
dss-287	107	10	focusing	focus	VERB
dss-287	107	11	on	on	ADP
dss-287	107	12	mirror	mirror	NOUN
dss-287	107	13	grinding	grind	VERB
dss-287	107	14	and	and	CCONJ
dss-287	107	15	polishing	polish	VERB
dss-287	107	16	techniques	technique	NOUN
dss-287	107	17	.	.	PUNCT
dss-287	108	1	it	it	PRON
dss-287	108	2	also	also	ADV
dss-287	108	3	covers	cover	VERB
dss-287	108	4	the	the	DET
dss-287	108	5	construction	construction	NOUN
dss-287	108	6	of	of	ADP
dss-287	108	7	the	the	DET
dss-287	108	8	telescope	telescope	NOUN
dss-287	108	9	mount	mount	NOUN
dss-287	108	10	and	and	CCONJ
dss-287	108	11	the	the	DET
dss-287	108	12	assembly	assembly	NOUN
dss-287	108	13	of	of	ADP
dss-287	108	14	the	the	DET
dss-287	108	15	optical	optical	ADJ
dss-287	108	16	system	system	NOUN
dss-287	108	17	.	.	PUNCT
dss-287	109	1	volume	volume	NOUN
dss-287	109	2	2	2	NUM
dss-287	109	3	delves	delf	NOUN
dss-287	109	4	into	into	ADP
dss-287	109	5	more	more	ADV
dss-287	109	6	advanced	advanced	ADJ
dss-287	109	7	techniques	technique	NOUN
dss-287	109	8	,	,	PUNCT
dss-287	109	9	including	include	VERB
dss-287	109	10	complex	complex	ADJ
dss-287	109	11	mirror	mirror	NOUN
dss-287	109	12	designs	design	NOUN
dss-287	109	13	,	,	PUNCT
dss-287	109	14	multi	multi	ADJ
dss-287	109	15	-	-	ADJ
dss-287	109	16	element	element	ADJ
dss-287	109	17	telescopes	telescope	NOUN
dss-287	109	18	,	,	PUNCT
dss-287	109	19	and	and	CCONJ
dss-287	109	20	methods	method	NOUN
dss-287	109	21	to	to	PART
dss-287	109	22	improve	improve	VERB
dss-287	109	23	optical	optical	ADJ
dss-287	109	24	performance	performance	NOUN
dss-287	109	25	.	.	PUNCT
dss-287	110	1	it	it	PRON
dss-287	110	2	emphasizes	emphasize	VERB
dss-287	110	3	precision	precision	NOUN
dss-287	110	4	in	in	ADP
dss-287	110	5	crafting	craft	VERB
dss-287	110	6	larger	large	ADJ
dss-287	110	7	telescopes	telescope	NOUN
dss-287	110	8	and	and	CCONJ
dss-287	110	9	finer	fine	ADJ
dss-287	110	10	optics	optic	NOUN
dss-287	110	11	,	,	PUNCT
dss-287	110	12	ideal	ideal	ADJ
dss-287	110	13	for	for	ADP
dss-287	110	14	those	those	PRON
dss-287	110	15	with	with	ADP
dss-287	110	16	some	some	DET
dss-287	110	17	experience	experience	NOUN
dss-287	110	18	in	in	ADP
dss-287	110	19	telescope	telescope	NOUN
dss-287	110	20	making	making	NOUN
dss-287	110	21	.	.	PUNCT
dss-287	111	1	volume	volume	NOUN
dss-287	111	2	3	3	NUM
dss-287	111	3	focuses	focus	VERB
dss-287	111	4	on	on	ADP
dss-287	111	5	the	the	DET
dss-287	111	6	construction	construction	NOUN
dss-287	111	7	of	of	ADP
dss-287	111	8	large	large	ADJ
dss-287	111	9	telescopes	telescope	NOUN
dss-287	111	10	,	,	PUNCT
dss-287	111	11	particularly	particularly	ADV
dss-287	111	12	those	those	PRON
dss-287	111	13	intended	intend	VERB
dss-287	111	14	for	for	ADP
dss-287	111	15	serious	serious	ADJ
dss-287	111	16	amateur	amateur	ADJ
dss-287	111	17	astronomical	astronomical	ADJ
dss-287	111	18	observation	observation	NOUN
dss-287	111	19	.	.	PUNCT
dss-287	112	1	it	it	PRON
dss-287	112	2	covers	cover	VERB
dss-287	112	3	topics	topic	NOUN
dss-287	112	4	like	like	ADP
dss-287	112	5	large	large	ADJ
dss-287	112	6	mirror	mirror	NOUN
dss-287	112	7	making	making	NOUN
dss-287	112	8	,	,	PUNCT
dss-287	112	9	sophisticated	sophisticated	ADJ
dss-287	112	10	mounting	mount	VERB
dss-287	112	11	systems	system	NOUN
dss-287	112	12	,	,	PUNCT
dss-287	112	13	and	and	CCONJ
dss-287	112	14	fine	fine	ADV
dss-287	112	15	-	-	PUNCT
dss-287	112	16	tuning	tune	VERB
dss-287	112	17	optical	optical	ADJ
dss-287	112	18	performance	performance	NOUN
dss-287	112	19	for	for	ADP
dss-287	112	20	high	high	ADJ
dss-287	112	21	-	-	PUNCT
dss-287	112	22	resolution	resolution	NOUN
dss-287	112	23	astronomy	astronomy	NOUN
dss-287	112	24	.	.	PUNCT
dss-287	113	1	this	this	DET
dss-287	113	2	volume	volume	NOUN
dss-287	113	3	is	be	AUX
dss-287	113	4	more	more	ADV
dss-287	113	5	technical	technical	ADJ
dss-287	113	6	and	and	CCONJ
dss-287	113	7	geared	gear	VERB
dss-287	113	8	toward	toward	ADP
dss-287	113	9	advanced	advanced	ADJ
dss-287	113	10	hobbyists	hobbyist	NOUN
dss-287	113	11	.	.	PUNCT
dss-287	114	1	remer	remer	NOUN
dss-287	115	1	[	[	X
dss-287	115	2	21	21	NUM
dss-287	115	3	]	]	PUNCT
dss-287	115	4	wrote	write	VERB
dss-287	115	5	a	a	DET
dss-287	115	6	practical	practical	ADJ
dss-287	115	7	guide	guide	NOUN
dss-287	115	8	designed	design	VERB
dss-287	115	9	for	for	ADP
dss-287	115	10	amateur	amateur	ADJ
dss-287	115	11	astronomers	astronomer	NOUN
dss-287	115	12	interested	interested	ADJ
dss-287	115	13	in	in	ADP
dss-287	115	14	constructing	construct	VERB
dss-287	115	15	their	their	PRON
dss-287	115	16	own	own	ADJ
dss-287	115	17	refractor	refractor	NOUN
dss-287	115	18	telescopes	telescope	NOUN
dss-287	115	19	.	.	PUNCT
dss-287	116	1	the	the	DET
dss-287	116	2	book	book	NOUN
dss-287	116	3	provides	provide	VERB
dss-287	116	4	detailed	detailed	ADJ
dss-287	116	5	instructions	instruction	NOUN
dss-287	116	6	on	on	ADP
dss-287	116	7	how	how	SCONJ
dss-287	116	8	to	to	PART
dss-287	116	9	craft	craft	VERB
dss-287	116	10	high	high	ADJ
dss-287	116	11	-	-	PUNCT
dss-287	116	12	quality	quality	NOUN
dss-287	116	13	optics	optic	NOUN
dss-287	116	14	,	,	PUNCT
dss-287	116	15	including	include	VERB
dss-287	116	16	lens	lens	NOUN
dss-287	116	17	making	making	NOUN
dss-287	116	18	and	and	CCONJ
dss-287	116	19	alignment	alignment	NOUN
dss-287	116	20	,	,	PUNCT
dss-287	116	21	as	as	ADV
dss-287	116	22	well	well	ADV
dss-287	116	23	as	as	ADP
dss-287	116	24	the	the	DET
dss-287	116	25	construction	construction	NOUN
dss-287	116	26	of	of	ADP
dss-287	116	27	the	the	DET
dss-287	116	28	tube	tube	NOUN
dss-287	116	29	and	and	CCONJ
dss-287	116	30	mounting	mount	VERB
dss-287	116	31	system	system	NOUN
dss-287	116	32	.	.	PUNCT
dss-287	117	1	it	it	PRON
dss-287	117	2	also	also	ADV
dss-287	117	3	covers	cover	VERB
dss-287	117	4	the	the	DET
dss-287	117	5	necessary	necessary	ADJ
dss-287	117	6	tools	tool	NOUN
dss-287	117	7	and	and	CCONJ
dss-287	117	8	materials	material	NOUN
dss-287	117	9	,	,	PUNCT
dss-287	117	10	giving	give	VERB
dss-287	117	11	step	step	NOUN
dss-287	117	12	-	-	PUNCT
dss-287	117	13	by	by	ADP
dss-287	117	14	-	-	PUNCT
dss-287	117	15	step	step	NOUN
dss-287	117	16	guidance	guidance	NOUN
dss-287	117	17	on	on	ADP
dss-287	117	18	achieving	achieve	VERB
dss-287	117	19	a	a	DET
dss-287	117	20	well	well	ADV
dss-287	117	21	-	-	PUNCT
dss-287	117	22	optimized	optimize	VERB
dss-287	117	23	refractor	refractor	NOUN
dss-287	117	24	for	for	ADP
dss-287	117	25	both	both	DET
dss-287	117	26	visual	visual	ADJ
dss-287	117	27	observation	observation	NOUN
dss-287	117	28	and	and	CCONJ
dss-287	117	29	astrophotography	astrophotography	NOUN
dss-287	117	30	.	.	PUNCT
dss-287	118	1	highe	highe	PROPN
dss-287	119	1	[	[	X
dss-287	119	2	22	22	NUM
dss-287	119	3	]	]	PUNCT
dss-287	119	4	gave	give	VERB
dss-287	119	5	a	a	DET
dss-287	119	6	practical	practical	ADJ
dss-287	119	7	guide	guide	NOUN
dss-287	119	8	aimed	aim	VERB
dss-287	119	9	at	at	ADP
dss-287	119	10	amateur	amateur	ADJ
dss-287	119	11	astronomers	astronomer	NOUN
dss-287	119	12	who	who	PRON
dss-287	119	13	wish	wish	VERB
dss-287	119	14	to	to	PART
dss-287	119	15	build	build	VERB
dss-287	119	16	or	or	CCONJ
dss-287	119	17	optimize	optimize	VERB
dss-287	119	18	portable	portable	ADJ
dss-287	119	19	newtonian	newtonian	ADJ
dss-287	119	20	telescopes	telescope	NOUN
dss-287	119	21	.	.	PUNCT
dss-287	120	1	his	his	PRON
dss-287	120	2	book	book	NOUN
dss-287	120	3	covers	cover	VERB
dss-287	120	4	various	various	ADJ
dss-287	120	5	aspects	aspect	NOUN
dss-287	120	6	of	of	ADP
dss-287	120	7	telescope	telescope	NOUN
dss-287	120	8	design	design	NOUN
dss-287	120	9	,	,	PUNCT
dss-287	120	10	from	from	ADP
dss-287	120	11	choosing	choose	VERB
dss-287	120	12	the	the	DET
dss-287	120	13	materials	material	NOUN
dss-287	120	14	and	and	CCONJ
dss-287	120	15	optics	optic	NOUN
dss-287	120	16	to	to	ADP
dss-287	120	17	constructing	construct	VERB
dss-287	120	18	a	a	DET
dss-287	120	19	stable	stable	ADJ
dss-287	120	20	,	,	PUNCT
dss-287	120	21	lightweight	lightweight	ADJ
dss-287	120	22	mount	mount	NOUN
dss-287	120	23	.	.	PUNCT
dss-287	121	1	it	it	PRON
dss-287	121	2	focuses	focus	VERB
dss-287	121	3	on	on	ADP
dss-287	121	4	creating	create	VERB
dss-287	121	5	a	a	DET
dss-287	121	6	telescope	telescope	NOUN
dss-287	121	7	that	that	PRON
dss-287	121	8	is	be	AUX
dss-287	121	9	both	both	PRON
dss-287	121	10	easy	easy	ADJ
dss-287	121	11	to	to	PART
dss-287	121	12	transport	transport	VERB
dss-287	121	13	and	and	CCONJ
dss-287	121	14	capable	capable	ADJ
dss-287	121	15	of	of	ADP
dss-287	121	16	providing	provide	VERB
dss-287	121	17	high	high	ADJ
dss-287	121	18	-	-	PUNCT
dss-287	121	19	quality	quality	NOUN
dss-287	121	20	views	view	NOUN
dss-287	121	21	for	for	ADP
dss-287	121	22	deep	deep	ADJ
dss-287	121	23	-	-	PUNCT
dss-287	121	24	sky	sky	NOUN
dss-287	121	25	observing	observing	NOUN
dss-287	121	26	.	.	PUNCT
dss-287	122	1	the	the	DET
dss-287	122	2	book	book	NOUN
dss-287	122	3	also	also	ADV
dss-287	122	4	includes	include	VERB
dss-287	122	5	tips	tip	NOUN
dss-287	122	6	for	for	ADP
dss-287	122	7	achieving	achieve	VERB
dss-287	122	8	optimal	optimal	ADJ
dss-287	122	9	performance	performance	NOUN
dss-287	122	10	and	and	CCONJ
dss-287	122	11	providing	provide	VERB
dss-287	122	12	advice	advice	NOUN
dss-287	122	13	on	on	ADP
dss-287	122	14	modifications	modification	NOUN
dss-287	122	15	to	to	PART
dss-287	122	16	improve	improve	VERB
dss-287	122	17	portability	portability	NOUN
dss-287	122	18	without	without	ADP
dss-287	122	19	compromising	compromise	VERB
dss-287	122	20	optical	optical	ADJ
dss-287	122	21	quality	quality	NOUN
dss-287	122	22	.	.	PUNCT
dss-287	123	1	daley	daley	PROPN
dss-287	123	2	’s	’s	PART
dss-287	123	3	[	[	X
dss-287	123	4	23	23	NUM
dss-287	123	5	]	]	PUNCT
dss-287	123	6	book	book	NOUN
dss-287	123	7	provides	provide	VERB
dss-287	123	8	a	a	DET
dss-287	123	9	detailed	detailed	ADJ
dss-287	123	10	exploration	exploration	NOUN
dss-287	123	11	of	of	ADP
dss-287	123	12	the	the	DET
dss-287	123	13	schupmann	schupmann	PROPN
dss-287	123	14	telescope	telescope	PROPN
dss-287	123	15	design	design	NOUN
dss-287	123	16	,	,	PUNCT
dss-287	123	17	an	an	DET
dss-287	123	18	optical	optical	ADJ
dss-287	123	19	system	system	NOUN
dss-287	123	20	that	that	PRON
dss-287	123	21	offers	offer	VERB
dss-287	123	22	a	a	DET
dss-287	123	23	combination	combination	NOUN
dss-287	123	24	of	of	ADP
dss-287	123	25	wide	wide	ADJ
dss-287	123	26	-	-	PUNCT
dss-287	123	27	field	field	NOUN
dss-287	123	28	viewing	viewing	NOUN
dss-287	123	29	and	and	CCONJ
dss-287	123	30	high	high	ADJ
dss-287	123	31	-	-	PUNCT
dss-287	123	32	quality	quality	NOUN
dss-287	123	33	imaging	imaging	NOUN
dss-287	123	34	.	.	PUNCT
dss-287	124	1	the	the	DET
dss-287	124	2	book	book	NOUN
dss-287	124	3	focuses	focus	VERB
dss-287	124	4	on	on	ADP
dss-287	124	5	how	how	SCONJ
dss-287	124	6	this	this	DET
dss-287	124	7	design	design	NOUN
dss-287	124	8	works	work	VERB
dss-287	124	9	,	,	PUNCT
dss-287	124	10	its	its	PRON
dss-287	124	11	optical	optical	ADJ
dss-287	124	12	advantages	advantage	NOUN
dss-287	124	13	,	,	PUNCT
dss-287	124	14	and	and	CCONJ
dss-287	124	15	the	the	DET
dss-287	124	16	engineering	engineering	NOUN
dss-287	124	17	involved	involve	VERB
dss-287	124	18	in	in	ADP
dss-287	124	19	constructing	construct	VERB
dss-287	124	20	such	such	ADJ
dss-287	124	21	telescopes	telescope	NOUN
dss-287	124	22	.	.	PUNCT
dss-287	125	1	daley	daley	PROPN
dss-287	125	2	covers	cover	VERB
dss-287	125	3	the	the	DET
dss-287	125	4	theoretical	theoretical	ADJ
dss-287	125	5	foundation	foundation	NOUN
dss-287	125	6	behind	behind	ADP
dss-287	125	7	the	the	DET
dss-287	125	8	schupmann	schupmann	PROPN
dss-287	125	9	design	design	PROPN
dss-287	125	10	,	,	PUNCT
dss-287	125	11	as	as	ADV
dss-287	125	12	well	well	ADV
dss-287	125	13	as	as	ADP
dss-287	125	14	practical	practical	ADJ
dss-287	125	15	guidance	guidance	NOUN
dss-287	125	16	on	on	ADP
dss-287	125	17	building	building	NOUN
dss-287	125	18	and	and	CCONJ
dss-287	125	19	fine	fine	ADV
dss-287	125	20	-	-	PUNCT
dss-287	125	21	tuning	tune	VERB
dss-287	125	22	these	these	DET
dss-287	125	23	telescopes	telescope	NOUN
dss-287	125	24	.	.	PUNCT
dss-287	126	1	this	this	PRON
dss-287	126	2	is	be	AUX
dss-287	126	3	useful	useful	ADJ
dss-287	126	4	for	for	ADP
dss-287	126	5	amateur	amateur	ADJ
dss-287	126	6	astronomers	astronomer	NOUN
dss-287	126	7	looking	look	VERB
dss-287	126	8	to	to	PART
dss-287	126	9	explore	explore	VERB
dss-287	126	10	a	a	DET
dss-287	126	11	unique	unique	ADJ
dss-287	126	12	and	and	CCONJ
dss-287	126	13	less	less	ADV
dss-287	126	14	common	common	ADJ
dss-287	126	15	optical	optical	ADJ
dss-287	126	16	design	design	NOUN
dss-287	126	17	.	.	PUNCT
dss-287	127	1	for	for	ADP
dss-287	127	2	information	information	NOUN
dss-287	127	3	on	on	ADP
dss-287	127	4	amateur	amateur	ADJ
dss-287	127	5	telescope	telescope	NOUN
dss-287	127	6	optics	optic	NOUN
dss-287	127	7	,	,	PUNCT
dss-287	127	8	one	one	PRON
dss-287	127	9	should	should	AUX
dss-287	127	10	also	also	ADV
dss-287	127	11	visit	visit	VERB
dss-287	127	12	the	the	DET
dss-287	127	13	following	follow	VERB
dss-287	127	14	websites	website	NOUN
dss-287	127	15	:	:	PUNCT
dss-287	127	16	amateur	amateur	ADJ
dss-287	127	17	telescope	telescope	NOUN
dss-287	127	18	optics	optic	NOUN
dss-287	127	19	[	[	X
dss-287	127	20	40	40	NUM
dss-287	127	21	]	]	PUNCT
dss-287	127	22	by	by	ADP
dss-287	127	23	v.	v.	PROPN
dss-287	127	24	sacek	sacek	PROPN
dss-287	127	25	(	(	PUNCT
dss-287	127	26	this	this	DET
dss-287	127	27	site	site	NOUN
dss-287	127	28	offers	offer	VERB
dss-287	127	29	detailed	detailed	ADJ
dss-287	127	30	insights	insight	NOUN
dss-287	127	31	into	into	ADP
dss-287	127	32	telescope	telescope	NOUN
dss-287	127	33	design	design	NOUN
dss-287	127	34	,	,	PUNCT
dss-287	127	35	optical	optical	ADJ
dss-287	127	36	theory	theory	NOUN
dss-287	127	37	,	,	PUNCT
dss-287	127	38	and	and	CCONJ
dss-287	127	39	practical	practical	ADJ
dss-287	127	40	advice	advice	NOUN
dss-287	127	41	for	for	ADP
dss-287	127	42	enthusiasts	enthusiast	NOUN
dss-287	127	43	)	)	PUNCT
dss-287	127	44	,	,	PUNCT
dss-287	127	45	telescope	telescope	NOUN
dss-287	127	46	optics	optic	VERB
dss-287	127	47	topics	topic	NOUN
dss-287	127	48	[	[	X
dss-287	127	49	41	41	NUM
dss-287	127	50	]	]	PUNCT
dss-287	127	51	by	by	ADP
dss-287	127	52	b.	b.	PROPN
dss-287	127	53	greer	greer	PROPN
dss-287	127	54	(	(	PUNCT
dss-287	127	55	a	a	DET
dss-287	127	56	repository	repository	NOUN
dss-287	127	57	of	of	ADP
dss-287	127	58	personal	personal	ADJ
dss-287	127	59	research	research	NOUN
dss-287	127	60	focusing	focus	VERB
dss-287	127	61	on	on	ADP
dss-287	127	62	newtonian	newtonian	ADJ
dss-287	127	63	telescope	telescope	NOUN
dss-287	127	64	design	design	NOUN
dss-287	127	65	,	,	PUNCT
dss-287	127	66	including	include	VERB
dss-287	127	67	articles	article	NOUN
dss-287	127	68	and	and	CCONJ
dss-287	127	69	companion	companion	NOUN
dss-287	127	70	pages	page	NOUN
dss-287	127	71	for	for	ADP
dss-287	127	72	magazine	magazine	NOUN
dss-287	127	73	features	feature	NOUN
dss-287	127	74	)	)	PUNCT
dss-287	127	75	,	,	PUNCT
dss-287	127	76	astronomical	astronomical	ADJ
dss-287	127	77	optics	optic	NOUN
dss-287	127	78	[	[	X
dss-287	127	79	155	155	NUM
dss-287	127	80	]	]	PUNCT
dss-287	127	81	,	,	PUNCT
dss-287	127	82	telescope	telescope	NOUN
dss-287	127	83	optics	optic	NOUN
dss-287	127	84	for	for	ADP
dss-287	127	85	hobbyists	hobbyist	NOUN
dss-287	128	1	[	[	X
dss-287	128	2	42	42	NUM
dss-287	128	3	]	]	PUNCT
dss-287	128	4	by	by	ADP
dss-287	128	5	edmund	edmund	PROPN
dss-287	128	6	optics	optics	PROPN
dss-287	128	7	(	(	PUNCT
dss-287	128	8	provides	provide	VERB
dss-287	128	9	guidance	guidance	NOUN
dss-287	128	10	on	on	ADP
dss-287	128	11	building	building	NOUN
dss-287	128	12	telescopes	telescope	NOUN
dss-287	128	13	,	,	PUNCT
dss-287	128	14	understanding	understand	VERB
dss-287	128	15	different	different	ADJ
dss-287	128	16	types	type	NOUN
dss-287	128	17	,	,	PUNCT
dss-287	128	18	and	and	CCONJ
dss-287	128	19	selecting	select	VERB
dss-287	128	20	appropriate	appropriate	ADJ
dss-287	128	21	components	component	NOUN
dss-287	128	22	)	)	PUNCT
dss-287	128	23	,	,	PUNCT
dss-287	128	24	as	as	ADV
dss-287	128	25	well	well	ADV
dss-287	128	26	as	as	ADP
dss-287	128	27	online	online	ADJ
dss-287	128	28	forums	forum	NOUN
dss-287	128	29	,	,	PUNCT
dss-287	128	30	such	such	ADJ
dss-287	128	31	as	as	ADP
dss-287	128	32	one	one	NUM
dss-287	128	33	at	at	ADP
dss-287	128	34	cloudy	cloudy	ADJ
dss-287	128	35	nights	night	NOUN
dss-287	128	36	astronomical	astronomical	ADJ
dss-287	128	37	community	community	NOUN
dss-287	129	1	[	[	X
dss-287	129	2	43	43	NUM
dss-287	129	3	]	]	PUNCT
dss-287	129	4	.	.	PUNCT
dss-287	130	1	2.1	2.1	NUM
dss-287	130	2	.	.	PUNCT
dss-287	130	3	review	review	NOUN
dss-287	130	4	of	of	ADP
dss-287	130	5	scientific	scientific	ADJ
dss-287	130	6	papers	paper	NOUN
dss-287	130	7	the	the	DET
dss-287	130	8	field	field	NOUN
dss-287	130	9	of	of	ADP
dss-287	130	10	astronomical	astronomical	ADJ
dss-287	130	11	telescope	telescope	NOUN
dss-287	130	12	design	design	NOUN
dss-287	130	13	is	be	AUX
dss-287	130	14	supported	support	VERB
dss-287	130	15	by	by	ADP
dss-287	130	16	an	an	DET
dss-287	130	17	extensive	extensive	ADJ
dss-287	130	18	and	and	CCONJ
dss-287	130	19	growing	grow	VERB
dss-287	130	20	body	body	NOUN
dss-287	130	21	of	of	ADP
dss-287	130	22	scholarly	scholarly	ADJ
dss-287	130	23	work	work	NOUN
dss-287	130	24	,	,	PUNCT
dss-287	130	25	comprising	comprise	VERB
dss-287	130	26	hundreds	hundred	NOUN
dss-287	130	27	of	of	ADP
dss-287	130	28	high	high	ADJ
dss-287	130	29	-	-	PUNCT
dss-287	130	30	quality	quality	NOUN
dss-287	130	31	research	research	NOUN
dss-287	130	32	papers	paper	NOUN
dss-287	130	33	and	and	CCONJ
dss-287	130	34	technical	technical	ADJ
dss-287	130	35	articles	article	NOUN
dss-287	130	36	.	.	PUNCT
dss-287	131	1	given	give	VERB
dss-287	131	2	the	the	DET
dss-287	131	3	sheer	sheer	ADJ
dss-287	131	4	volume	volume	NOUN
dss-287	131	5	of	of	ADP
dss-287	131	6	publications	publication	NOUN
dss-287	131	7	,	,	PUNCT
dss-287	131	8	it	it	PRON
dss-287	131	9	is	be	AUX
dss-287	131	10	challenging	challenge	VERB
dss-287	131	11	to	to	PART
dss-287	131	12	isolate	isolate	VERB
dss-287	131	13	and	and	CCONJ
dss-287	131	14	highlight	highlight	VERB
dss-287	131	15	individual	individual	ADJ
dss-287	131	16	contributions	contribution	NOUN
dss-287	131	17	without	without	ADP
dss-287	131	18	overlooking	overlook	VERB
dss-287	131	19	many	many	ADJ
dss-287	131	20	others	other	NOUN
dss-287	131	21	of	of	ADP
dss-287	131	22	significance	significance	NOUN
dss-287	131	23	.	.	PUNCT
dss-287	132	1	consequently	consequently	ADV
dss-287	132	2	,	,	PUNCT
dss-287	132	3	this	this	DET
dss-287	132	4	review	review	NOUN
dss-287	132	5	selectively	selectively	ADV
dss-287	132	6	presents	present	VERB
dss-287	132	7	a	a	DET
dss-287	132	8	representative	representative	ADJ
dss-287	132	9	subset	subset	NOUN
dss-287	132	10	of	of	ADP
dss-287	132	11	the	the	DET
dss-287	132	12	literature	literature	NOUN
dss-287	132	13	,	,	PUNCT
dss-287	132	14	focusing	focus	VERB
dss-287	132	15	on	on	ADP
dss-287	132	16	papers	paper	NOUN
dss-287	132	17	that	that	PRON
dss-287	132	18	offer	offer	VERB
dss-287	132	19	valuable	valuable	ADJ
dss-287	132	20	insights	insight	NOUN
dss-287	132	21	into	into	ADP
dss-287	132	22	key	key	ADJ
dss-287	132	23	design	design	NOUN
dss-287	132	24	principles	principle	NOUN
dss-287	132	25	,	,	PUNCT
dss-287	132	26	innovations	innovation	NOUN
dss-287	132	27	,	,	PUNCT
dss-287	132	28	and	and	CCONJ
dss-287	132	29	emerging	emerge	VERB
dss-287	132	30	trends	trend	NOUN
dss-287	132	31	in	in	ADP
dss-287	132	32	telescope	telescope	NOUN
dss-287	132	33	technology	technology	NOUN
dss-287	132	34	.	.	PUNCT
dss-287	133	1	while	while	SCONJ
dss-287	133	2	this	this	DET
dss-287	133	3	selection	selection	NOUN
dss-287	133	4	does	do	AUX
dss-287	133	5	not	not	PART
dss-287	133	6	claim	claim	VERB
dss-287	133	7	to	to	PART
dss-287	133	8	be	be	AUX
dss-287	133	9	exhaustive	exhaustive	ADJ
dss-287	133	10	due	due	ADP
dss-287	133	11	to	to	ADP
dss-287	133	12	the	the	DET
dss-287	133	13	breadth	breadth	NOUN
dss-287	133	14	and	and	CCONJ
dss-287	133	15	diversity	diversity	NOUN
dss-287	133	16	of	of	ADP
dss-287	133	17	research	research	NOUN
dss-287	133	18	in	in	ADP
dss-287	133	19	the	the	DET
dss-287	133	20	field	field	NOUN
dss-287	133	21	it	it	PRON
dss-287	133	22	aims	aim	VERB
dss-287	133	23	to	to	PART
dss-287	133	24	provide	provide	VERB
dss-287	133	25	a	a	DET
dss-287	133	26	meaningful	meaningful	ADJ
dss-287	133	27	overview	overview	NOUN
dss-287	133	28	of	of	ADP
dss-287	133	29	current	current	ADJ
dss-287	133	30	research	research	NOUN
dss-287	133	31	directions	direction	NOUN
dss-287	133	32	and	and	CCONJ
dss-287	133	33	foundational	foundational	ADJ
dss-287	133	34	studies	study	NOUN
dss-287	133	35	in	in	ADP
dss-287	133	36	this	this	DET
dss-287	133	37	area	area	NOUN
dss-287	133	38	.	.	PUNCT
dss-287	134	1	by	by	ADP
dss-287	134	2	drawing	draw	VERB
dss-287	134	3	from	from	ADP
dss-287	134	4	a	a	DET
dss-287	134	5	variety	variety	NOUN
dss-287	134	6	of	of	ADP
dss-287	134	7	sources	source	NOUN
dss-287	134	8	,	,	PUNCT
dss-287	134	9	this	this	DET
dss-287	134	10	review	review	NOUN
dss-287	134	11	captures	capture	VERB
dss-287	134	12	the	the	DET
dss-287	134	13	multifaceted	multifaceted	ADJ
dss-287	134	14	nature	nature	NOUN
dss-287	134	15	of	of	ADP
dss-287	134	16	telescope	telescope	NOUN
dss-287	134	17	design	design	NOUN
dss-287	134	18	,	,	PUNCT
dss-287	134	19	encompassing	encompass	VERB
dss-287	134	20	optical	optical	ADJ
dss-287	134	21	theory	theory	NOUN
dss-287	134	22	,	,	PUNCT
dss-287	134	23	material	material	NOUN
dss-287	134	24	science	science	NOUN
dss-287	134	25	,	,	PUNCT
dss-287	134	26	engineering	engineering	NOUN
dss-287	134	27	challenges	challenge	NOUN
dss-287	134	28	,	,	PUNCT
dss-287	134	29	and	and	CCONJ
dss-287	134	30	practical	practical	ADJ
dss-287	134	31	applications	application	NOUN
dss-287	134	32	for	for	ADP
dss-287	134	33	both	both	CCONJ
dss-287	134	34	amateur	amateur	ADJ
dss-287	134	35	and	and	CCONJ
dss-287	134	36	professional	professional	ADJ
dss-287	134	37	astronomy	astronomy	NOUN
dss-287	134	38	.	.	PUNCT
dss-287	135	1	the	the	DET
dss-287	135	2	curated	curate	VERB
dss-287	135	3	list	list	NOUN
dss-287	135	4	serves	serve	VERB
dss-287	135	5	not	not	PART
dss-287	135	6	only	only	ADV
dss-287	135	7	to	to	PART
dss-287	135	8	illustrate	illustrate	VERB
dss-287	135	9	the	the	DET
dss-287	135	10	state	state	NOUN
dss-287	135	11	of	of	ADP
dss-287	135	12	the	the	DET
dss-287	135	13	art	art	NOUN
dss-287	135	14	but	but	CCONJ
dss-287	135	15	also	also	ADV
dss-287	135	16	to	to	PART
dss-287	135	17	identify	identify	VERB
dss-287	135	18	areas	area	NOUN
dss-287	135	19	where	where	SCONJ
dss-287	135	20	ongoing	ongoing	ADJ
dss-287	135	21	research	research	NOUN
dss-287	135	22	is	be	AUX
dss-287	135	23	actively	actively	ADV
dss-287	135	24	pushing	push	VERB
dss-287	135	25	the	the	DET
dss-287	135	26	boundaries	boundary	NOUN
dss-287	135	27	of	of	ADP
dss-287	135	28	telescope	telescope	NOUN
dss-287	135	29	performance	performance	NOUN
dss-287	135	30	and	and	CCONJ
dss-287	135	31	usability	usability	NOUN
dss-287	135	32	.	.	PUNCT
dss-287	136	1	pease	pease	PROPN
dss-287	136	2	's	's	PART
dss-287	136	3	1935	1935	NUM
dss-287	136	4	paper	paper	NOUN
dss-287	136	5	,	,	PUNCT
dss-287	136	6	"	"	PUNCT
dss-287	136	7	modern	modern	ADJ
dss-287	136	8	large	large	ADJ
dss-287	136	9	telescope	telescope	NOUN
dss-287	136	10	design	design	NOUN
dss-287	136	11	"	"	PUNCT
dss-287	136	12	[	[	X
dss-287	136	13	24	24	NUM
dss-287	136	14	]	]	PUNCT
dss-287	136	15	,	,	PUNCT
dss-287	136	16	published	publish	VERB
dss-287	136	17	in	in	ADP
dss-287	136	18	the	the	DET
dss-287	136	19	journal	journal	NOUN
dss-287	136	20	of	of	ADP
dss-287	136	21	the	the	DET
dss-287	136	22	optical	optical	ADJ
dss-287	136	23	society	society	NOUN
dss-287	136	24	of	of	ADP
dss-287	136	25	america	america	PROPN
dss-287	136	26	,	,	PUNCT
dss-287	136	27	delves	delve	VERB
dss-287	136	28	into	into	ADP
dss-287	136	29	the	the	DET
dss-287	136	30	advancements	advancement	NOUN
dss-287	136	31	and	and	CCONJ
dss-287	136	32	methodologies	methodology	NOUN
dss-287	136	33	in	in	ADP
dss-287	136	34	constructing	construct	VERB
dss-287	136	35	large	large	ADJ
dss-287	136	36	-	-	PUNCT
dss-287	136	37	scale	scale	NOUN
dss-287	136	38	optical	optical	ADJ
dss-287	136	39	telescopes	telescope	NOUN
dss-287	136	40	.	.	PUNCT
dss-287	137	1	pease	pease	PROPN
dss-287	137	2	,	,	PUNCT
dss-287	137	3	a	a	DET
dss-287	137	4	pivotal	pivotal	ADJ
dss-287	137	5	figure	figure	NOUN
dss-287	137	6	at	at	ADP
dss-287	137	7	the	the	DET
dss-287	137	8	mount	mount	PROPN
dss-287	137	9	wilson	wilson	PROPN
dss-287	137	10	solar	solar	PROPN
dss-287	137	11	observatory	observatory	NOUN
dss-287	137	12	,	,	PUNCT
dss-287	137	13	contributed	contribute	VERB
dss-287	137	14	significantly	significantly	ADV
dss-287	137	15	to	to	ADP
dss-287	137	16	the	the	DET
dss-287	137	17	design	design	NOUN
dss-287	137	18	of	of	ADP
dss-287	137	19	major	major	ADJ
dss-287	137	20	instruments	instrument	NOUN
dss-287	137	21	,	,	PUNCT
dss-287	137	22	including	include	VERB
dss-287	137	23	the	the	DET
dss-287	137	24	100	100	NUM
dss-287	137	25	-	-	PUNCT
dss-287	137	26	inch	inch	NOUN
dss-287	137	27	hooker	hooker	NOUN
dss-287	137	28	telescope	telescope	NOUN
dss-287	137	29	and	and	CCONJ
dss-287	137	30	the	the	DET
dss-287	137	31	200	200	NUM
dss-287	137	32	-	-	PUNCT
dss-287	137	33	inch	inch	NOUN
dss-287	137	34	hale	hale	PROPN
dss-287	137	35	telescope	telescope	NOUN
dss-287	137	36	.	.	PUNCT
dss-287	138	1	his	his	PRON
dss-287	138	2	expertise	expertise	NOUN
dss-287	138	3	in	in	ADP
dss-287	138	4	astronomical	astronomical	ADJ
dss-287	138	5	instrument	instrument	NOUN
dss-287	138	6	design	design	NOUN
dss-287	138	7	has	have	AUX
dss-287	138	8	been	be	AUX
dss-287	138	9	instrumental	instrumental	ADJ
dss-287	138	10	in	in	ADP
dss-287	138	11	shaping	shape	VERB
dss-287	138	12	modern	modern	ADJ
dss-287	138	13	observational	observational	ADJ
dss-287	138	14	astronomy	astronomy	NOUN
dss-287	138	15	.	.	PUNCT
dss-287	139	1	feinberg	feinberg	PROPN
dss-287	139	2	dss	dss	PROPN
dss-287	139	3	vol	vol	NOUN
dss-287	139	4	.	.	PROPN
dss-287	140	1	6	6	NUM
dss-287	140	2	,	,	PUNCT
dss-287	140	3	no	no	INTJ
dss-287	140	4	.	.	NOUN
dss-287	140	5	1	1	NUM
dss-287	140	6	,	,	PUNCT
dss-287	140	7	2025	2025	NUM
dss-287	140	8	,	,	PUNCT
dss-287	140	9	pp.49	pp.49	NOUN
dss-287	140	10	-	-	SYM
dss-287	140	11	90	90	NUM
dss-287	140	12	53	53	NUM
dss-287	140	13	et	et	NOUN
dss-287	140	14	al	al	PROPN
dss-287	140	15	.	.	PUNCT
dss-287	141	1	[	[	X
dss-287	141	2	25	25	NUM
dss-287	141	3	]	]	PUNCT
dss-287	141	4	published	publish	VERB
dss-287	141	5	an	an	DET
dss-287	141	6	overview	overview	NOUN
dss-287	141	7	of	of	ADP
dss-287	141	8	the	the	DET
dss-287	141	9	multifaceted	multifaceted	ADJ
dss-287	141	10	factors	factor	NOUN
dss-287	141	11	influencing	influence	VERB
dss-287	141	12	the	the	DET
dss-287	141	13	design	design	NOUN
dss-287	141	14	of	of	ADP
dss-287	141	15	astronomical	astronomical	ADJ
dss-287	141	16	space	space	NOUN
dss-287	141	17	telescopes	telescope	NOUN
dss-287	141	18	.	.	PUNCT
dss-287	142	1	it	it	PRON
dss-287	142	2	introduces	introduce	VERB
dss-287	142	3	performance	performance	NOUN
dss-287	142	4	metrics	metric	NOUN
dss-287	142	5	that	that	PRON
dss-287	142	6	translate	translate	VERB
dss-287	142	7	scientific	scientific	ADJ
dss-287	142	8	goals	goal	NOUN
dss-287	142	9	into	into	ADP
dss-287	142	10	design	design	NOUN
dss-287	142	11	requirements	requirement	NOUN
dss-287	142	12	and	and	CCONJ
dss-287	142	13	discusses	discuss	VERB
dss-287	142	14	cost	cost	NOUN
dss-287	142	15	estimation	estimation	NOUN
dss-287	142	16	factors	factor	NOUN
dss-287	142	17	such	such	ADJ
dss-287	142	18	as	as	ADP
dss-287	142	19	mass	mass	ADJ
dss-287	142	20	,	,	PUNCT
dss-287	142	21	complexity	complexity	NOUN
dss-287	142	22	,	,	PUNCT
dss-287	142	23	technology	technology	NOUN
dss-287	142	24	maturity	maturity	NOUN
dss-287	142	25	,	,	PUNCT
dss-287	142	26	and	and	CCONJ
dss-287	142	27	heritage	heritage	NOUN
dss-287	142	28	.	.	PUNCT
dss-287	143	1	the	the	DET
dss-287	143	2	authors	author	NOUN
dss-287	143	3	aimed	aim	VERB
dss-287	143	4	to	to	PART
dss-287	143	5	provide	provide	VERB
dss-287	143	6	a	a	DET
dss-287	143	7	roadmap	roadmap	NOUN
dss-287	143	8	for	for	SCONJ
dss-287	143	9	future	future	ADJ
dss-287	143	10	space	space	NOUN
dss-287	143	11	telescope	telescope	NOUN
dss-287	143	12	designers	designer	NOUN
dss-287	143	13	to	to	PART
dss-287	143	14	optimize	optimize	VERB
dss-287	143	15	designs	design	NOUN
dss-287	143	16	that	that	PRON
dss-287	143	17	enhance	enhance	VERB
dss-287	143	18	scientific	scientific	ADJ
dss-287	143	19	capabilities	capability	NOUN
dss-287	143	20	while	while	SCONJ
dss-287	143	21	minimizing	minimize	VERB
dss-287	143	22	total	total	ADJ
dss-287	143	23	costs	cost	NOUN
dss-287	143	24	.	.	PUNCT
dss-287	144	1	endelman	endelman	ADJ
dss-287	144	2	[	[	X
dss-287	144	3	26	26	NUM
dss-287	144	4	]	]	PUNCT
dss-287	144	5	provides	provide	VERB
dss-287	144	6	an	an	DET
dss-287	144	7	overview	overview	NOUN
dss-287	144	8	of	of	ADP
dss-287	144	9	the	the	DET
dss-287	144	10	hubble	hubble	ADJ
dss-287	144	11	space	space	NOUN
dss-287	144	12	telescope	telescope	NOUN
dss-287	144	13	(	(	PUNCT
dss-287	144	14	hst	hst	PROPN
dss-287	144	15	)	)	PUNCT
dss-287	144	16	,	,	PUNCT
dss-287	144	17	from	from	ADP
dss-287	144	18	its	its	PRON
dss-287	144	19	inception	inception	NOUN
dss-287	144	20	through	through	ADP
dss-287	144	21	its	its	PRON
dss-287	144	22	early	early	ADJ
dss-287	144	23	challenges	challenge	NOUN
dss-287	144	24	,	,	PUNCT
dss-287	144	25	design	design	NOUN
dss-287	144	26	,	,	PUNCT
dss-287	144	27	and	and	CCONJ
dss-287	144	28	subsequent	subsequent	ADJ
dss-287	144	29	remedies	remedy	NOUN
dss-287	144	30	.	.	PUNCT
dss-287	145	1	launched	launch	VERB
dss-287	145	2	in	in	ADP
dss-287	145	3	april	april	PROPN
dss-287	145	4	1990	1990	NUM
dss-287	145	5	after	after	ADP
dss-287	145	6	nearly	nearly	ADV
dss-287	145	7	fifteen	fifteen	NUM
dss-287	145	8	years	year	NOUN
dss-287	145	9	of	of	ADP
dss-287	145	10	development	development	NOUN
dss-287	145	11	,	,	PUNCT
dss-287	145	12	the	the	DET
dss-287	145	13	hst	hst	NOUN
dss-287	145	14	aimed	aim	VERB
dss-287	145	15	to	to	PART
dss-287	145	16	advance	advance	VERB
dss-287	145	17	our	our	PRON
dss-287	145	18	understanding	understanding	NOUN
dss-287	145	19	of	of	ADP
dss-287	145	20	the	the	DET
dss-287	145	21	universe	universe	NOUN
dss-287	145	22	by	by	ADP
dss-287	145	23	observing	observe	VERB
dss-287	145	24	celestial	celestial	ADJ
dss-287	145	25	phenomena	phenomenon	NOUN
dss-287	145	26	without	without	ADP
dss-287	145	27	atmospheric	atmospheric	ADJ
dss-287	145	28	interference	interference	NOUN
dss-287	145	29	.	.	PUNCT
dss-287	146	1	however	however	ADV
dss-287	146	2	,	,	PUNCT
dss-287	146	3	initial	initial	ADJ
dss-287	146	4	images	image	NOUN
dss-287	146	5	revealed	reveal	VERB
dss-287	146	6	a	a	DET
dss-287	146	7	significant	significant	ADJ
dss-287	146	8	issue	issue	NOUN
dss-287	146	9	:	:	PUNCT
dss-287	146	10	the	the	DET
dss-287	146	11	primary	primary	ADJ
dss-287	146	12	2.4	2.4	NUM
dss-287	146	13	-	-	PUNCT
dss-287	146	14	meter	meter	NOUN
dss-287	146	15	mirror	mirror	NOUN
dss-287	146	16	suffered	suffer	VERB
dss-287	146	17	from	from	ADP
dss-287	146	18	spherical	spherical	ADJ
dss-287	146	19	aberration	aberration	NOUN
dss-287	146	20	due	due	ADP
dss-287	146	21	to	to	ADP
dss-287	146	22	a	a	DET
dss-287	146	23	manufacturing	manufacturing	NOUN
dss-287	146	24	flaw	flaw	NOUN
dss-287	146	25	,	,	PUNCT
dss-287	146	26	leading	lead	VERB
dss-287	146	27	to	to	ADP
dss-287	146	28	blurred	blurred	ADJ
dss-287	146	29	images	image	NOUN
dss-287	146	30	.	.	PUNCT
dss-287	147	1	additional	additional	ADJ
dss-287	147	2	complications	complication	NOUN
dss-287	147	3	arose	arise	VERB
dss-287	147	4	with	with	ADP
dss-287	147	5	the	the	DET
dss-287	147	6	solar	solar	NOUN
dss-287	147	7	arrays	array	NOUN
dss-287	147	8	,	,	PUNCT
dss-287	147	9	guidance	guidance	NOUN
dss-287	147	10	systems	system	NOUN
dss-287	147	11	,	,	PUNCT
dss-287	147	12	and	and	CCONJ
dss-287	147	13	auxiliary	auxiliary	ADJ
dss-287	147	14	equipment	equipment	NOUN
dss-287	147	15	.	.	PUNCT
dss-287	148	1	to	to	PART
dss-287	148	2	address	address	VERB
dss-287	148	3	these	these	DET
dss-287	148	4	issues	issue	NOUN
dss-287	148	5	,	,	PUNCT
dss-287	148	6	an	an	DET
dss-287	148	7	11	11	NUM
dss-287	148	8	-	-	PUNCT
dss-287	148	9	day	day	NOUN
dss-287	148	10	servicing	servicing	NOUN
dss-287	148	11	mission	mission	NOUN
dss-287	148	12	commenced	commence	VERB
dss-287	148	13	on	on	ADP
dss-287	148	14	december	december	PROPN
dss-287	148	15	2	2	NUM
dss-287	148	16	,	,	PUNCT
dss-287	148	17	1993	1993	NUM
dss-287	148	18	,	,	PUNCT
dss-287	148	19	during	during	ADP
dss-287	148	20	which	which	PRON
dss-287	148	21	astronauts	astronaut	NOUN
dss-287	148	22	aboard	aboard	ADP
dss-287	148	23	the	the	DET
dss-287	148	24	space	space	NOUN
dss-287	148	25	shuttle	shuttle	NOUN
dss-287	148	26	endeavour	endeavour	AUX
dss-287	148	27	replaced	replace	VERB
dss-287	148	28	and	and	CCONJ
dss-287	148	29	repaired	repair	VERB
dss-287	148	30	malfunctioning	malfunction	VERB
dss-287	148	31	components	component	NOUN
dss-287	148	32	.	.	PUNCT
dss-287	149	1	mcelwain	mcelwain	NOUN
dss-287	149	2	et	et	PROPN
dss-287	149	3	al	al	PROPN
dss-287	149	4	.	.	PUNCT
dss-287	150	1	[	[	X
dss-287	150	2	27	27	NUM
dss-287	150	3	]	]	PUNCT
dss-287	150	4	discuss	discuss	VERB
dss-287	150	5	the	the	DET
dss-287	150	6	design	design	NOUN
dss-287	150	7	,	,	PUNCT
dss-287	150	8	development	development	NOUN
dss-287	150	9	,	,	PUNCT
dss-287	150	10	and	and	CCONJ
dss-287	150	11	in	in	ADP
dss-287	150	12	-	-	PUNCT
dss-287	150	13	orbit	orbit	NOUN
dss-287	150	14	performance	performance	NOUN
dss-287	150	15	of	of	ADP
dss-287	150	16	the	the	DET
dss-287	150	17	optical	optical	ADJ
dss-287	150	18	telescope	telescope	NOUN
dss-287	150	19	element	element	NOUN
dss-287	150	20	(	(	PUNCT
dss-287	150	21	ote	ote	NOUN
dss-287	150	22	)	)	PUNCT
dss-287	150	23	of	of	ADP
dss-287	150	24	the	the	DET
dss-287	150	25	james	james	PROPN
dss-287	150	26	webb	webb	PROPN
dss-287	150	27	space	space	PROPN
dss-287	150	28	telescope	telescope	NOUN
dss-287	150	29	(	(	PUNCT
dss-287	150	30	jwst	jwst	NOUN
dss-287	150	31	)	)	PUNCT
dss-287	150	32	.	.	PUNCT
dss-287	151	1	key	key	ADJ
dss-287	151	2	points	point	NOUN
dss-287	151	3	covered	cover	VERB
dss-287	151	4	in	in	ADP
dss-287	151	5	the	the	DET
dss-287	151	6	paper	paper	NOUN
dss-287	151	7	are	be	AUX
dss-287	151	8	design	design	NOUN
dss-287	151	9	and	and	CCONJ
dss-287	151	10	architecture	architecture	NOUN
dss-287	151	11	,	,	PUNCT
dss-287	151	12	alignment	alignment	NOUN
dss-287	151	13	and	and	CCONJ
dss-287	151	14	wavefront	wavefront	ADJ
dss-287	151	15	sensing	sensing	NOUN
dss-287	151	16	,	,	PUNCT
dss-287	151	17	deployment	deployment	NOUN
dss-287	151	18	and	and	CCONJ
dss-287	151	19	commissioning	commissioning	NOUN
dss-287	151	20	,	,	PUNCT
dss-287	151	21	as	as	ADV
dss-287	151	22	well	well	ADV
dss-287	151	23	as	as	ADP
dss-287	151	24	performance	performance	NOUN
dss-287	151	25	and	and	CCONJ
dss-287	151	26	scientific	scientific	ADJ
dss-287	151	27	impact	impact	NOUN
dss-287	151	28	.	.	PUNCT
dss-287	152	1	regarding	regard	VERB
dss-287	152	2	jwst	jwst	NOUN
dss-287	152	3	,	,	PUNCT
dss-287	152	4	contreras	contrera	NOUN
dss-287	152	5	and	and	CCONJ
dss-287	152	6	lightsey	lightsey	NOUN
dss-287	152	7	[	[	X
dss-287	152	8	28	28	NUM
dss-287	152	9	]	]	PUNCT
dss-287	152	10	also	also	ADV
dss-287	152	11	provided	provide	VERB
dss-287	152	12	a	a	DET
dss-287	152	13	review	review	NOUN
dss-287	152	14	of	of	ADP
dss-287	152	15	the	the	DET
dss-287	152	16	mission	mission	NOUN
dss-287	152	17	optical	optical	ADJ
dss-287	152	18	requirements	requirement	NOUN
dss-287	152	19	and	and	CCONJ
dss-287	152	20	optical	optical	ADJ
dss-287	152	21	architecture	architecture	NOUN
dss-287	152	22	.	.	PUNCT
dss-287	153	1	they	they	PRON
dss-287	153	2	described	describe	VERB
dss-287	153	3	the	the	DET
dss-287	153	4	telescope	telescope	NOUN
dss-287	153	5	design	design	NOUN
dss-287	153	6	,	,	PUNCT
dss-287	153	7	highlighted	highlight	VERB
dss-287	153	8	some	some	PRON
dss-287	153	9	of	of	ADP
dss-287	153	10	the	the	DET
dss-287	153	11	features	feature	NOUN
dss-287	153	12	of	of	ADP
dss-287	153	13	the	the	DET
dss-287	153	14	baseline	baseline	NOUN
dss-287	153	15	telescope	telescope	NOUN
dss-287	153	16	,	,	PUNCT
dss-287	153	17	and	and	CCONJ
dss-287	153	18	discussed	discuss	VERB
dss-287	153	19	the	the	DET
dss-287	153	20	nominal	nominal	ADJ
dss-287	153	21	performance	performance	NOUN
dss-287	153	22	.	.	PUNCT
dss-287	154	1	in	in	ADP
dss-287	154	2	addition	addition	NOUN
dss-287	154	3	,	,	PUNCT
dss-287	154	4	their	their	PRON
dss-287	154	5	paper	paper	NOUN
dss-287	154	6	provided	provide	VERB
dss-287	154	7	an	an	DET
dss-287	154	8	overview	overview	NOUN
dss-287	154	9	of	of	ADP
dss-287	154	10	the	the	DET
dss-287	154	11	wavefront	wavefront	ADJ
dss-287	154	12	sensing	sensing	NOUN
dss-287	154	13	and	and	CCONJ
dss-287	154	14	control	control	NOUN
dss-287	154	15	process	process	NOUN
dss-287	154	16	and	and	CCONJ
dss-287	154	17	described	describe	VERB
dss-287	154	18	some	some	PRON
dss-287	154	19	of	of	ADP
dss-287	154	20	the	the	DET
dss-287	154	21	special	special	ADJ
dss-287	154	22	optical	optical	ADJ
dss-287	154	23	analysis	analysis	NOUN
dss-287	154	24	considerations	consideration	NOUN
dss-287	154	25	necessary	necessary	ADJ
dss-287	154	26	in	in	ADP
dss-287	154	27	a	a	DET
dss-287	154	28	system	system	NOUN
dss-287	154	29	needing	need	VERB
dss-287	154	30	remote	remote	ADJ
dss-287	154	31	,	,	PUNCT
dss-287	154	32	on	on	ADP
dss-287	154	33	-	-	PUNCT
dss-287	154	34	orbit	orbit	NOUN
dss-287	154	35	alignment	alignment	NOUN
dss-287	154	36	.	.	PUNCT
dss-287	155	1	parshley	parshley	PROPN
dss-287	155	2	et	et	PROPN
dss-287	155	3	al	al	PROPN
dss-287	155	4	.	.	PUNCT
dss-287	156	1	[	[	X
dss-287	156	2	29	29	NUM
dss-287	156	3	]	]	PUNCT
dss-287	156	4	presented	present	VERB
dss-287	156	5	a	a	DET
dss-287	156	6	common	common	ADJ
dss-287	156	7	optical	optical	ADJ
dss-287	156	8	design	design	NOUN
dss-287	156	9	for	for	ADP
dss-287	156	10	a	a	DET
dss-287	156	11	6	6	NUM
dss-287	156	12	-	-	PUNCT
dss-287	156	13	meter	meter	NOUN
dss-287	156	14	aperture	aperture	NOUN
dss-287	156	15	,	,	PUNCT
dss-287	156	16	crossed	cross	VERB
dss-287	156	17	-	-	PUNCT
dss-287	156	18	dragone	dragone	NOUN
dss-287	156	19	telescope	telescope	NOUN
dss-287	156	20	adopted	adopt	VERB
dss-287	156	21	by	by	ADP
dss-287	156	22	both	both	CCONJ
dss-287	156	23	the	the	DET
dss-287	156	24	ccat	ccat	NOUN
dss-287	156	25	-	-	PUNCT
dss-287	156	26	prime	prime	NOUN
dss-287	156	27	and	and	CCONJ
dss-287	156	28	simons	simon	NOUN
dss-287	156	29	observatory	observatory	ADJ
dss-287	156	30	projects	project	NOUN
dss-287	156	31	.	.	PUNCT
dss-287	157	1	the	the	DET
dss-287	157	2	design	design	NOUN
dss-287	157	3	offers	offer	VERB
dss-287	157	4	a	a	DET
dss-287	157	5	high	high	ADJ
dss-287	157	6	-	-	PUNCT
dss-287	157	7	throughput	throughput	NOUN
dss-287	157	8	,	,	PUNCT
dss-287	157	9	relatively	relatively	ADV
dss-287	157	10	flat	flat	ADJ
dss-287	157	11	focal	focal	ADJ
dss-287	157	12	plane	plane	NOUN
dss-287	157	13	with	with	ADP
dss-287	157	14	a	a	DET
dss-287	157	15	7.8	7.8	NUM
dss-287	157	16	-	-	PUNCT
dss-287	157	17	degree	degree	NOUN
dss-287	157	18	field	field	NOUN
dss-287	157	19	of	of	ADP
dss-287	157	20	view	view	NOUN
dss-287	157	21	at	at	ADP
dss-287	157	22	3	3	NUM
dss-287	157	23	mm	mm	NOUN
dss-287	157	24	wavelengths	wavelength	NOUN
dss-287	157	25	,	,	PUNCT
dss-287	157	26	suitable	suitable	ADJ
dss-287	157	27	for	for	ADP
dss-287	157	28	submillimeter	submillimeter	NOUN
dss-287	157	29	and	and	CCONJ
dss-287	157	30	millimeter	millimeter	NOUN
dss-287	157	31	observations	observation	NOUN
dss-287	157	32	.	.	PUNCT
dss-287	158	1	huiru	huiru	PROPN
dss-287	158	2	ji	ji	INTJ
dss-287	158	3	et	et	PROPN
dss-287	158	4	al	al	PROPN
dss-287	159	1	[	[	X
dss-287	159	2	30	30	NUM
dss-287	159	3	]	]	PUNCT
dss-287	159	4	proposed	propose	VERB
dss-287	159	5	a	a	DET
dss-287	159	6	method	method	NOUN
dss-287	159	7	to	to	PART
dss-287	159	8	design	design	VERB
dss-287	159	9	a	a	DET
dss-287	159	10	high	high	ADJ
dss-287	159	11	-	-	PUNCT
dss-287	159	12	throughput	throughput	NOUN
dss-287	159	13	telescope	telescope	NOUN
dss-287	159	14	using	use	VERB
dss-287	159	15	an	an	DET
dss-287	159	16	off	off	ADP
dss-287	159	17	-	-	PUNCT
dss-287	159	18	axis	axis	NOUN
dss-287	159	19	three	three	NUM
dss-287	159	20	-	-	PUNCT
dss-287	159	21	mirror	mirror	NOUN
dss-287	159	22	anastigmat	anastigmat	NOUN
dss-287	159	23	configuration	configuration	NOUN
dss-287	159	24	combined	combine	VERB
dss-287	159	25	with	with	ADP
dss-287	159	26	a	a	DET
dss-287	159	27	scanning	scanning	NOUN
dss-287	159	28	mechanism	mechanism	NOUN
dss-287	159	29	.	.	PUNCT
dss-287	160	1	the	the	DET
dss-287	160	2	resulting	result	VERB
dss-287	160	3	design	design	NOUN
dss-287	160	4	achieves	achieve	VERB
dss-287	160	5	an	an	DET
dss-287	160	6	f	f	NOUN
dss-287	160	7	-	-	PUNCT
dss-287	160	8	number	number	NOUN
dss-287	160	9	of	of	ADP
dss-287	160	10	6	6	NUM
dss-287	160	11	,	,	PUNCT
dss-287	160	12	a	a	DET
dss-287	160	13	60	60	NUM
dss-287	160	14	°	°	NUM
dss-287	160	15	×	×	PROPN
dss-287	160	16	1.5	1.5	NUM
dss-287	160	17	°	°	NOUN
dss-287	160	18	field	field	NOUN
dss-287	160	19	of	of	ADP
dss-287	160	20	view	view	NOUN
dss-287	160	21	,	,	PUNCT
dss-287	160	22	and	and	CCONJ
dss-287	160	23	a	a	DET
dss-287	160	24	focal	focal	ADJ
dss-287	160	25	length	length	NOUN
dss-287	160	26	of	of	ADP
dss-287	160	27	876	876	NUM
dss-287	160	28	mm	mm	NOUN
dss-287	160	29	,	,	PUNCT
dss-287	160	30	making	make	VERB
dss-287	160	31	it	it	PRON
dss-287	160	32	suitable	suitable	ADJ
dss-287	160	33	for	for	ADP
dss-287	160	34	optical	optical	ADJ
dss-287	160	35	remote	remote	ADJ
dss-287	160	36	sensing	sense	VERB
dss-287	160	37	applications	application	NOUN
dss-287	160	38	.	.	PUNCT
dss-287	161	1	sirsi	sirsi	NOUN
dss-287	161	2	et	et	PROPN
dss-287	161	3	al	al	PROPN
dss-287	162	1	[	[	X
dss-287	162	2	31	31	NUM
dss-287	162	3	]	]	PUNCT
dss-287	162	4	discuss	discuss	VERB
dss-287	162	5	the	the	DET
dss-287	162	6	design	design	NOUN
dss-287	162	7	of	of	ADP
dss-287	162	8	oasis	oasis	NOUN
dss-287	162	9	,	,	PUNCT
dss-287	162	10	a	a	DET
dss-287	162	11	proposed	propose	VERB
dss-287	162	12	space	space	NOUN
dss-287	162	13	telescope	telescope	NOUN
dss-287	162	14	featuring	feature	VERB
dss-287	162	15	a	a	DET
dss-287	162	16	14	14	NUM
dss-287	162	17	-	-	PUNCT
dss-287	162	18	meter	meter	NOUN
dss-287	162	19	inflatable	inflatable	ADJ
dss-287	162	20	primary	primary	ADJ
dss-287	162	21	reflector	reflector	NOUN
dss-287	162	22	.	.	PUNCT
dss-287	163	1	the	the	DET
dss-287	163	2	telescope	telescope	NOUN
dss-287	163	3	is	be	AUX
dss-287	163	4	intended	intend	VERB
dss-287	163	5	for	for	ADP
dss-287	163	6	high	high	ADJ
dss-287	163	7	spectral	spectral	ADJ
dss-287	163	8	resolution	resolution	NOUN
dss-287	163	9	observations	observation	NOUN
dss-287	163	10	in	in	ADP
dss-287	163	11	the	the	DET
dss-287	163	12	terahertz	terahertz	NOUN
dss-287	163	13	frequency	frequency	NOUN
dss-287	163	14	range	range	NOUN
dss-287	163	15	,	,	PUNCT
dss-287	163	16	utilizing	utilize	VERB
dss-287	163	17	aberration	aberration	NOUN
dss-287	163	18	correction	correction	NOUN
dss-287	163	19	optics	optic	NOUN
dss-287	163	20	and	and	CCONJ
dss-287	163	21	a	a	DET
dss-287	163	22	scanning	scanning	NOUN
dss-287	163	23	mechanism	mechanism	NOUN
dss-287	163	24	to	to	PART
dss-287	163	25	achieve	achieve	VERB
dss-287	163	26	a	a	DET
dss-287	163	27	0.1	0.1	NUM
dss-287	163	28	-	-	PUNCT
dss-287	163	29	degree	degree	NOUN
dss-287	163	30	field	field	NOUN
dss-287	163	31	of	of	ADP
dss-287	163	32	regard	regard	NOUN
dss-287	163	33	with	with	ADP
dss-287	163	34	diffraction	diffraction	NOUN
dss-287	163	35	-	-	PUNCT
dss-287	163	36	limited	limit	VERB
dss-287	163	37	performance	performance	NOUN
dss-287	163	38	.	.	PUNCT
dss-287	164	1	graves	grave	NOUN
dss-287	164	2	et	et	PROPN
dss-287	164	3	al	al	PROPN
dss-287	165	1	[	[	X
dss-287	165	2	32	32	NUM
dss-287	165	3	]	]	PUNCT
dss-287	165	4	paper	paper	NOUN
dss-287	165	5	addresses	address	NOUN
dss-287	165	6	the	the	DET
dss-287	165	7	integrated	integrate	VERB
dss-287	165	8	design	design	NOUN
dss-287	165	9	and	and	CCONJ
dss-287	165	10	manufacturing	manufacturing	NOUN
dss-287	165	11	processes	process	NOUN
dss-287	165	12	of	of	ADP
dss-287	165	13	next	next	ADJ
dss-287	165	14	-	-	PUNCT
dss-287	165	15	generation	generation	NOUN
dss-287	165	16	large	large	ADJ
dss-287	165	17	telescopes	telescope	NOUN
dss-287	165	18	.	.	PUNCT
dss-287	166	1	it	it	PRON
dss-287	166	2	covers	cover	VERB
dss-287	166	3	topics	topic	NOUN
dss-287	166	4	from	from	ADP
dss-287	166	5	optical	optical	ADJ
dss-287	166	6	design	design	NOUN
dss-287	166	7	to	to	ADP
dss-287	166	8	enclosure	enclosure	NOUN
dss-287	166	9	requirements	requirement	NOUN
dss-287	166	10	,	,	PUNCT
dss-287	166	11	emphasizing	emphasize	VERB
dss-287	166	12	the	the	DET
dss-287	166	13	need	need	NOUN
dss-287	166	14	for	for	ADP
dss-287	166	15	novel	novel	ADJ
dss-287	166	16	approaches	approach	NOUN
dss-287	166	17	to	to	PART
dss-287	166	18	meet	meet	VERB
dss-287	166	19	the	the	DET
dss-287	166	20	scientific	scientific	ADJ
dss-287	166	21	goals	goal	NOUN
dss-287	166	22	of	of	ADP
dss-287	166	23	future	future	ADJ
dss-287	166	24	observatories	observatory	NOUN
dss-287	166	25	.	.	PUNCT
dss-287	167	1	muslimov	muslimov	PROPN
dss-287	167	2	et	et	PROPN
dss-287	167	3	al	al	PROPN
dss-287	168	1	[	[	X
dss-287	168	2	33	33	NUM
dss-287	168	3	]	]	PUNCT
dss-287	168	4	present	present	VERB
dss-287	168	5	the	the	DET
dss-287	168	6	design	design	NOUN
dss-287	168	7	of	of	ADP
dss-287	168	8	an	an	DET
dss-287	168	9	all	all	ADV
dss-287	168	10	-	-	PUNCT
dss-287	168	11	reflective	reflective	ADJ
dss-287	168	12	,	,	PUNCT
dss-287	168	13	bi	bi	ADJ
dss-287	168	14	-	-	ADJ
dss-287	168	15	folded	fold	VERB
dss-287	168	16	schmidt	schmidt	NOUN
dss-287	168	17	telescope	telescope	NOUN
dss-287	168	18	aimed	aim	VERB
dss-287	168	19	at	at	ADP
dss-287	168	20	surveying	survey	VERB
dss-287	168	21	extended	extend	VERB
dss-287	168	22	astronomical	astronomical	ADJ
dss-287	168	23	objects	object	NOUN
dss-287	168	24	with	with	ADP
dss-287	168	25	extremely	extremely	ADV
dss-287	168	26	low	low	ADJ
dss-287	168	27	surface	surface	NOUN
dss-287	168	28	brightness	brightness	NOUN
dss-287	168	29	.	.	PUNCT
dss-287	169	1	the	the	DET
dss-287	169	2	innovative	innovative	ADJ
dss-287	169	3	design	design	NOUN
dss-287	169	4	incorporates	incorporate	VERB
dss-287	169	5	a	a	DET
dss-287	169	6	curved	curved	ADJ
dss-287	169	7	detector	detector	NOUN
dss-287	169	8	to	to	PART
dss-287	169	9	achieve	achieve	VERB
dss-287	169	10	high	high	ADJ
dss-287	169	11	image	image	NOUN
dss-287	169	12	quality	quality	NOUN
dss-287	169	13	over	over	ADP
dss-287	169	14	a	a	DET
dss-287	169	15	large	large	ADJ
dss-287	169	16	field	field	NOUN
dss-287	169	17	of	of	ADP
dss-287	169	18	view	view	NOUN
dss-287	169	19	,	,	PUNCT
dss-287	169	20	making	make	VERB
dss-287	169	21	it	it	PRON
dss-287	169	22	suitable	suitable	ADJ
dss-287	169	23	for	for	ADP
dss-287	169	24	deep	deep	ADJ
dss-287	169	25	-	-	PUNCT
dss-287	169	26	sky	sky	NOUN
dss-287	169	27	surveys	survey	NOUN
dss-287	169	28	.	.	PUNCT
dss-287	170	1	zhang	zhang	PROPN
dss-287	170	2	et	et	PROPN
dss-287	170	3	al	al	PROPN
dss-287	171	1	[	[	X
dss-287	171	2	34	34	NUM
dss-287	171	3	]	]	PUNCT
dss-287	171	4	studied	study	VERB
dss-287	171	5	the	the	DET
dss-287	171	6	conceptual	conceptual	ADJ
dss-287	171	7	optical	optical	ADJ
dss-287	171	8	design	design	NOUN
dss-287	171	9	of	of	ADP
dss-287	171	10	a	a	DET
dss-287	171	11	6.5	6.5	NUM
dss-287	171	12	-	-	PUNCT
dss-287	171	13	meter	meter	NOUN
dss-287	171	14	wide	wide	ADJ
dss-287	171	15	-	-	PUNCT
dss-287	171	16	field	field	NOUN
dss-287	171	17	survey	survey	NOUN
dss-287	171	18	telescope	telescope	NOUN
dss-287	171	19	.	.	PUNCT
dss-287	172	1	the	the	DET
dss-287	172	2	design	design	NOUN
dss-287	172	3	emphasizes	emphasize	VERB
dss-287	172	4	excellent	excellent	ADJ
dss-287	172	5	image	image	NOUN
dss-287	172	6	quality	quality	NOUN
dss-287	172	7	across	across	ADP
dss-287	172	8	a	a	DET
dss-287	172	9	broad	broad	ADJ
dss-287	172	10	field	field	NOUN
dss-287	172	11	of	of	ADP
dss-287	172	12	view	view	NOUN
dss-287	172	13	,	,	PUNCT
dss-287	172	14	aiming	aim	VERB
dss-287	172	15	to	to	PART
dss-287	172	16	facilitate	facilitate	VERB
dss-287	172	17	large	large	ADJ
dss-287	172	18	-	-	PUNCT
dss-287	172	19	scale	scale	NOUN
dss-287	172	20	astronomical	astronomical	ADJ
dss-287	172	21	surveys	survey	NOUN
dss-287	172	22	with	with	ADP
dss-287	172	23	high	high	ADJ
dss-287	172	24	efficiency	efficiency	NOUN
dss-287	172	25	.	.	PUNCT
dss-287	173	1	ho	ho	PROPN
dss-287	173	2	jin	jin	PROPN
dss-287	173	3	et	et	PROPN
dss-287	173	4	al	al	PROPN
dss-287	173	5	.	.	PUNCT
dss-287	174	1	[	[	X
dss-287	174	2	35	35	NUM
dss-287	174	3	]	]	PUNCT
dss-287	174	4	presented	present	VERB
dss-287	174	5	the	the	DET
dss-287	174	6	development	development	NOUN
dss-287	174	7	of	of	ADP
dss-287	174	8	a	a	DET
dss-287	174	9	compact	compact	ADJ
dss-287	174	10	reflecting	reflect	VERB
dss-287	174	11	telescope	telescope	NOUN
dss-287	174	12	tailored	tailor	VERB
dss-287	174	13	for	for	ADP
dss-287	174	14	a	a	DET
dss-287	174	15	3u	3u	NUM
dss-287	174	16	cubesat	cubesat	PROPN
dss-287	174	17	platform	platform	NOUN
dss-287	174	18	,	,	PUNCT
dss-287	174	19	aiming	aim	VERB
dss-287	174	20	to	to	PART
dss-287	174	21	capture	capture	VERB
dss-287	174	22	high	high	ADJ
dss-287	174	23	-	-	PUNCT
dss-287	174	24	quality	quality	NOUN
dss-287	174	25	earth	earth	NOUN
dss-287	174	26	imagery	imagery	NOUN
dss-287	174	27	.	.	PUNCT
dss-287	175	1	the	the	DET
dss-287	175	2	authors	author	NOUN
dss-287	175	3	designed	design	VERB
dss-287	175	4	a	a	DET
dss-287	175	5	ritchey	ritchey	NOUN
dss-287	175	6	-	-	PUNCT
dss-287	175	7	chrétien	chrétien	PROPN
dss-287	175	8	type	type	NOUN
dss-287	175	9	telescope	telescope	NOUN
dss-287	175	10	with	with	ADP
dss-287	175	11	off	off	ADP
dss-287	175	12	-	-	PUNCT
dss-287	175	13	axis	axis	NOUN
dss-287	175	14	segmented	segment	VERB
dss-287	175	15	mirrors	mirror	NOUN
dss-287	175	16	.	.	PUNCT
dss-287	176	1	at	at	ADP
dss-287	176	2	an	an	DET
dss-287	176	3	operational	operational	ADJ
dss-287	176	4	altitude	altitude	NOUN
dss-287	176	5	of	of	ADP
dss-287	176	6	700	700	NUM
dss-287	176	7	km	km	NOUN
dss-287	176	8	,	,	PUNCT
dss-287	176	9	the	the	DET
dss-287	176	10	system	system	NOUN
dss-287	176	11	can	can	AUX
dss-287	176	12	image	image	VERB
dss-287	176	13	approximately	approximately	ADV
dss-287	176	14	a	a	DET
dss-287	176	15	4	4	NUM
dss-287	176	16	km	km	NOUN
dss-287	176	17	by	by	ADP
dss-287	176	18	2.3	2.3	NUM
dss-287	176	19	km	km	NOUN
dss-287	176	20	area	area	NOUN
dss-287	176	21	of	of	ADP
dss-287	176	22	earth	earth	NOUN
dss-287	176	23	's	's	PART
dss-287	176	24	surface	surface	NOUN
dss-287	176	25	.	.	PUNCT
dss-287	177	1	this	this	DET
dss-287	177	2	design	design	NOUN
dss-287	177	3	demonstrates	demonstrate	VERB
dss-287	177	4	the	the	DET
dss-287	177	5	feasibility	feasibility	NOUN
dss-287	177	6	of	of	ADP
dss-287	177	7	integrating	integrate	VERB
dss-287	177	8	high	high	ADJ
dss-287	177	9	-	-	PUNCT
dss-287	177	10	resolution	resolution	NOUN
dss-287	177	11	reflecting	reflect	VERB
dss-287	177	12	telescopes	telescope	NOUN
dss-287	177	13	into	into	ADP
dss-287	177	14	cubesat	cubesat	PROPN
dss-287	177	15	missions	mission	NOUN
dss-287	177	16	,	,	PUNCT
dss-287	177	17	offering	offer	VERB
dss-287	177	18	a	a	DET
dss-287	177	19	resilient	resilient	ADJ
dss-287	177	20	alternative	alternative	NOUN
dss-287	177	21	to	to	ADP
dss-287	177	22	lens	lens	NOUN
dss-287	177	23	-	-	PUNCT
dss-287	177	24	based	base	VERB
dss-287	177	25	systems	system	NOUN
dss-287	177	26	.	.	PUNCT
dss-287	178	1	dss	dss	NOUN
dss-287	178	2	vol	vol	NOUN
dss-287	178	3	.	.	PROPN
dss-287	179	1	6	6	NUM
dss-287	179	2	,	,	PUNCT
dss-287	179	3	no	no	INTJ
dss-287	179	4	.	.	NOUN
dss-287	179	5	1	1	NUM
dss-287	179	6	,	,	PUNCT
dss-287	179	7	2025	2025	NUM
dss-287	179	8	,	,	PUNCT
dss-287	179	9	pp.49	pp.49	NOUN
dss-287	179	10	-	-	SYM
dss-287	179	11	90	90	NUM
dss-287	179	12	54	54	NUM
dss-287	179	13	catalan	catalan	NOUN
dss-287	179	14	[	[	X
dss-287	179	15	36	36	NUM
dss-287	179	16	]	]	PUNCT
dss-287	179	17	introduces	introduce	NOUN
dss-287	179	18	approximate	approximate	ADJ
dss-287	179	19	formulas	formula	NOUN
dss-287	179	20	to	to	PART
dss-287	179	21	quantify	quantify	VERB
dss-287	179	22	axial	axial	ADJ
dss-287	179	23	coma	coma	NOUN
dss-287	179	24	resulting	result	VERB
dss-287	179	25	from	from	ADP
dss-287	179	26	surface	surface	NOUN
dss-287	179	27	tilt	tilt	NOUN
dss-287	179	28	and	and	CCONJ
dss-287	179	29	decentering	decentering	NOUN
dss-287	179	30	,	,	PUNCT
dss-287	179	31	as	as	ADV
dss-287	179	32	well	well	ADV
dss-287	179	33	as	as	ADP
dss-287	179	34	spherical	spherical	ADJ
dss-287	179	35	aberration	aberration	NOUN
dss-287	179	36	due	due	ADP
dss-287	179	37	to	to	ADP
dss-287	179	38	axial	axial	ADJ
dss-287	179	39	displacement	displacement	NOUN
dss-287	179	40	.	.	PUNCT
dss-287	180	1	these	these	DET
dss-287	180	2	formulas	formula	NOUN
dss-287	180	3	distinguish	distinguish	VERB
dss-287	180	4	between	between	ADP
dss-287	180	5	aberrations	aberration	NOUN
dss-287	180	6	induced	induce	VERB
dss-287	180	7	by	by	ADP
dss-287	180	8	preceding	precede	VERB
dss-287	180	9	subsystems	subsystem	NOUN
dss-287	180	10	and	and	CCONJ
dss-287	180	11	those	those	PRON
dss-287	180	12	intrinsic	intrinsic	ADJ
dss-287	180	13	to	to	ADP
dss-287	180	14	the	the	DET
dss-287	180	15	misaligned	misaligned	ADJ
dss-287	180	16	surface	surface	NOUN
dss-287	180	17	.	.	PUNCT
dss-287	181	1	this	this	DET
dss-287	181	2	differentiation	differentiation	NOUN
dss-287	181	3	offers	offer	VERB
dss-287	181	4	a	a	DET
dss-287	181	5	straightforward	straightforward	ADJ
dss-287	181	6	approach	approach	NOUN
dss-287	181	7	to	to	ADP
dss-287	181	8	designing	design	VERB
dss-287	181	9	telescopic	telescopic	NOUN
dss-287	181	10	systems	system	NOUN
dss-287	181	11	less	less	ADV
dss-287	181	12	sensitive	sensitive	ADJ
dss-287	181	13	to	to	ADP
dss-287	181	14	specific	specific	ADJ
dss-287	181	15	misalignments	misalignment	NOUN
dss-287	181	16	.	.	PUNCT
dss-287	182	1	catalan	catalan	NOUN
dss-287	182	2	applies	apply	VERB
dss-287	182	3	this	this	DET
dss-287	182	4	method	method	NOUN
dss-287	182	5	to	to	ADP
dss-287	182	6	a	a	DET
dss-287	182	7	two	two	NUM
dss-287	182	8	-	-	PUNCT
dss-287	182	9	mirror	mirror	NOUN
dss-287	182	10	astronomical	astronomical	ADJ
dss-287	182	11	telescope	telescope	NOUN
dss-287	182	12	with	with	ADP
dss-287	182	13	a	a	DET
dss-287	182	14	corrector	corrector	NOUN
dss-287	182	15	,	,	PUNCT
dss-287	182	16	demonstrating	demonstrate	VERB
dss-287	182	17	significant	significant	ADJ
dss-287	182	18	reductions	reduction	NOUN
dss-287	182	19	in	in	ADP
dss-287	182	20	sensitivity	sensitivity	NOUN
dss-287	182	21	to	to	PART
dss-287	182	22	tilt	tilt	VERB
dss-287	182	23	and	and	CCONJ
dss-287	182	24	despace	despace	NOUN
dss-287	182	25	misalignments	misalignment	NOUN
dss-287	182	26	.	.	PUNCT
dss-287	183	1	the	the	DET
dss-287	183	2	paper	paper	NOUN
dss-287	183	3	also	also	ADV
dss-287	183	4	discusses	discuss	VERB
dss-287	183	5	the	the	DET
dss-287	183	6	limitations	limitation	NOUN
dss-287	183	7	of	of	ADP
dss-287	183	8	these	these	DET
dss-287	183	9	solutions	solution	NOUN
dss-287	183	10	and	and	CCONJ
dss-287	183	11	the	the	DET
dss-287	183	12	challenges	challenge	NOUN
dss-287	183	13	in	in	ADP
dss-287	183	14	simultaneously	simultaneously	ADV
dss-287	183	15	correcting	correct	VERB
dss-287	183	16	multiple	multiple	ADJ
dss-287	183	17	misalignment	misalignment	ADJ
dss-287	183	18	types	type	NOUN
dss-287	183	19	.	.	PUNCT
dss-287	184	1	stepp	stepp	PROPN
dss-287	184	2	and	and	CCONJ
dss-287	184	3	strom	strom	PROPN
dss-287	185	1	[	[	X
dss-287	185	2	37	37	NUM
dss-287	185	3	]	]	PUNCT
dss-287	185	4	provide	provide	VERB
dss-287	185	5	an	an	DET
dss-287	185	6	overview	overview	NOUN
dss-287	185	7	of	of	ADP
dss-287	185	8	the	the	DET
dss-287	185	9	initial	initial	ADJ
dss-287	185	10	design	design	NOUN
dss-287	185	11	and	and	CCONJ
dss-287	185	12	development	development	NOUN
dss-287	185	13	efforts	effort	NOUN
dss-287	185	14	for	for	ADP
dss-287	185	15	the	the	DET
dss-287	185	16	thirty	thirty	NUM
dss-287	185	17	meter	meter	NOUN
dss-287	185	18	telescope	telescope	NOUN
dss-287	185	19	(	(	PUNCT
dss-287	185	20	tmt	tmt	PROPN
dss-287	185	21	)	)	PUNCT
dss-287	185	22	project	project	NOUN
dss-287	185	23	.	.	PUNCT
dss-287	186	1	the	the	DET
dss-287	186	2	tmt	tmt	PROPN
dss-287	186	3	aims	aim	VERB
dss-287	186	4	to	to	PART
dss-287	186	5	construct	construct	VERB
dss-287	186	6	a	a	DET
dss-287	186	7	30	30	NUM
dss-287	186	8	-	-	PUNCT
dss-287	186	9	meter	meter	NOUN
dss-287	186	10	diameter	diameter	NOUN
dss-287	186	11	optical	optical	ADJ
dss-287	186	12	-	-	PUNCT
dss-287	186	13	infrared	infrare	VERB
dss-287	186	14	telescope	telescope	NOUN
dss-287	186	15	to	to	PART
dss-287	186	16	enable	enable	VERB
dss-287	186	17	groundbreaking	groundbreake	VERB
dss-287	186	18	astronomical	astronomical	ADJ
dss-287	186	19	observations	observation	NOUN
dss-287	186	20	.	.	PUNCT
dss-287	187	1	the	the	DET
dss-287	187	2	authors	author	NOUN
dss-287	187	3	discuss	discuss	VERB
dss-287	187	4	key	key	ADJ
dss-287	187	5	aspects	aspect	NOUN
dss-287	187	6	of	of	ADP
dss-287	187	7	the	the	DET
dss-287	187	8	project	project	NOUN
dss-287	187	9	,	,	PUNCT
dss-287	187	10	including	include	VERB
dss-287	187	11	the	the	DET
dss-287	187	12	scientific	scientific	ADJ
dss-287	187	13	objectives	objective	NOUN
dss-287	187	14	driving	drive	VERB
dss-287	187	15	the	the	DET
dss-287	187	16	telescope	telescope	NOUN
dss-287	187	17	's	's	PART
dss-287	187	18	design	design	NOUN
dss-287	187	19	,	,	PUNCT
dss-287	187	20	the	the	DET
dss-287	187	21	technical	technical	ADJ
dss-287	187	22	challenges	challenge	NOUN
dss-287	187	23	associated	associate	VERB
dss-287	187	24	with	with	ADP
dss-287	187	25	constructing	construct	VERB
dss-287	187	26	such	such	DET
dss-287	187	27	a	a	DET
dss-287	187	28	large	large	ADJ
dss-287	187	29	segmented	segment	VERB
dss-287	187	30	mirror	mirror	NOUN
dss-287	187	31	system	system	NOUN
dss-287	187	32	,	,	PUNCT
dss-287	187	33	and	and	CCONJ
dss-287	187	34	the	the	DET
dss-287	187	35	adaptive	adaptive	ADJ
dss-287	187	36	optics	optic	NOUN
dss-287	187	37	required	require	VERB
dss-287	187	38	to	to	PART
dss-287	187	39	achieve	achieve	VERB
dss-287	187	40	diffraction	diffraction	NOUN
dss-287	187	41	-	-	PUNCT
dss-287	187	42	limited	limit	VERB
dss-287	187	43	performance	performance	NOUN
dss-287	187	44	.	.	PUNCT
dss-287	188	1	they	they	PRON
dss-287	188	2	also	also	ADV
dss-287	188	3	outline	outline	VERB
dss-287	188	4	the	the	DET
dss-287	188	5	collaborative	collaborative	ADJ
dss-287	188	6	efforts	effort	NOUN
dss-287	188	7	among	among	ADP
dss-287	188	8	various	various	ADJ
dss-287	188	9	institutions	institution	NOUN
dss-287	188	10	and	and	CCONJ
dss-287	188	11	the	the	DET
dss-287	188	12	planned	planned	ADJ
dss-287	188	13	timeline	timeline	NOUN
dss-287	188	14	for	for	ADP
dss-287	188	15	the	the	DET
dss-287	188	16	project	project	NOUN
dss-287	188	17	's	's	PART
dss-287	188	18	development	development	NOUN
dss-287	188	19	phases	phase	NOUN
dss-287	188	20	.	.	PUNCT
dss-287	189	1	k.	k.	PROPN
dss-287	189	2	w.	w.	PROPN
dss-287	189	3	hodapp	hodapp	PROPN
dss-287	189	4	and	and	CCONJ
dss-287	189	5	colleagues	colleague	NOUN
dss-287	190	1	[	[	X
dss-287	190	2	38	38	NUM
dss-287	190	3	]	]	PUNCT
dss-287	190	4	presented	present	VERB
dss-287	190	5	the	the	DET
dss-287	190	6	development	development	NOUN
dss-287	190	7	of	of	ADP
dss-287	190	8	the	the	DET
dss-287	190	9	panoramic	panoramic	ADJ
dss-287	190	10	survey	survey	NOUN
dss-287	190	11	telescope	telescope	NOUN
dss-287	190	12	and	and	CCONJ
dss-287	190	13	rapid	rapid	ADJ
dss-287	190	14	response	response	NOUN
dss-287	190	15	system	system	NOUN
dss-287	190	16	(	(	PUNCT
dss-287	190	17	pan	pan	NOUN
dss-287	190	18	-	-	ADJ
dss-287	190	19	starrs	starrs	NOUN
dss-287	190	20	)	)	PUNCT
dss-287	190	21	,	,	PUNCT
dss-287	190	22	initiated	initiate	VERB
dss-287	190	23	by	by	ADP
dss-287	190	24	the	the	DET
dss-287	190	25	university	university	PROPN
dss-287	190	26	of	of	ADP
dss-287	190	27	hawaii	hawaii	PROPN
dss-287	190	28	's	's	PART
dss-287	190	29	institute	institute	NOUN
dss-287	190	30	for	for	ADP
dss-287	190	31	astronomy	astronomy	NOUN
dss-287	190	32	.	.	PUNCT
dss-287	191	1	the	the	DET
dss-287	191	2	primary	primary	ADJ
dss-287	191	3	goal	goal	NOUN
dss-287	191	4	of	of	ADP
dss-287	191	5	pan	pan	PROPN
dss-287	191	6	-	-	ADJ
dss-287	191	7	starrs	starrs	PROPN
dss-287	191	8	was	be	AUX
dss-287	191	9	to	to	PART
dss-287	191	10	detect	detect	VERB
dss-287	191	11	potentially	potentially	ADV
dss-287	191	12	hazardous	hazardous	ADJ
dss-287	191	13	asteroids	asteroid	NOUN
dss-287	191	14	(	(	PUNCT
dss-287	191	15	phas	phas	PROPN
dss-287	191	16	)	)	PUNCT
dss-287	191	17	and	and	CCONJ
dss-287	191	18	conduct	conduct	VERB
dss-287	191	19	comprehensive	comprehensive	ADJ
dss-287	191	20	sky	sky	NOUN
dss-287	191	21	surveys	survey	NOUN
dss-287	191	22	.	.	PUNCT
dss-287	192	1	the	the	DET
dss-287	192	2	design	design	NOUN
dss-287	192	3	emphasizes	emphasize	VERB
dss-287	192	4	a	a	DET
dss-287	192	5	wide	wide	ADJ
dss-287	192	6	field	field	NOUN
dss-287	192	7	of	of	ADP
dss-287	192	8	view	view	NOUN
dss-287	192	9	and	and	CCONJ
dss-287	192	10	rapid	rapid	ADJ
dss-287	192	11	sky	sky	NOUN
dss-287	192	12	coverage	coverage	NOUN
dss-287	192	13	,	,	PUNCT
dss-287	192	14	utilizing	utilize	VERB
dss-287	192	15	a	a	DET
dss-287	192	16	large	large	ADJ
dss-287	192	17	aperture	aperture	NOUN
dss-287	192	18	and	and	CCONJ
dss-287	192	19	advanced	advanced	ADJ
dss-287	192	20	optical	optical	ADJ
dss-287	192	21	components	component	NOUN
dss-287	192	22	to	to	PART
dss-287	192	23	achieve	achieve	VERB
dss-287	192	24	high	high	ADJ
dss-287	192	25	image	image	NOUN
dss-287	192	26	quality	quality	NOUN
dss-287	192	27	across	across	ADP
dss-287	192	28	a	a	DET
dss-287	192	29	broad	broad	ADJ
dss-287	192	30	field	field	NOUN
dss-287	192	31	.	.	PUNCT
dss-287	193	1	the	the	DET
dss-287	193	2	paper	paper	NOUN
dss-287	193	3	details	detail	VERB
dss-287	193	4	the	the	DET
dss-287	193	5	optical	optical	ADJ
dss-287	193	6	design	design	NOUN
dss-287	193	7	choices	choice	NOUN
dss-287	193	8	,	,	PUNCT
dss-287	193	9	including	include	VERB
dss-287	193	10	the	the	DET
dss-287	193	11	configuration	configuration	NOUN
dss-287	193	12	of	of	ADP
dss-287	193	13	mirrors	mirror	NOUN
dss-287	193	14	and	and	CCONJ
dss-287	193	15	corrector	corrector	NOUN
dss-287	193	16	elements	element	NOUN
dss-287	193	17	,	,	PUNCT
dss-287	193	18	to	to	PART
dss-287	193	19	meet	meet	VERB
dss-287	193	20	the	the	DET
dss-287	193	21	scientific	scientific	ADJ
dss-287	193	22	objectives	objective	NOUN
dss-287	193	23	of	of	ADP
dss-287	193	24	asteroid	asteroid	NOUN
dss-287	193	25	detection	detection	NOUN
dss-287	193	26	and	and	CCONJ
dss-287	193	27	sky	sky	NOUN
dss-287	193	28	surveying	surveying	NOUN
dss-287	193	29	.	.	PUNCT
dss-287	194	1	macias	macias	PROPN
dss-287	194	2	et	et	PROPN
dss-287	194	3	al	al	PROPN
dss-287	194	4	.	.	PUNCT
dss-287	195	1	[	[	X
dss-287	195	2	65	65	NUM
dss-287	195	3	]	]	X
dss-287	195	4	present	present	ADJ
dss-287	195	5	a	a	DET
dss-287	195	6	student	student	NOUN
dss-287	195	7	-	-	PUNCT
dss-287	195	8	led	lead	VERB
dss-287	195	9	initiative	initiative	NOUN
dss-287	195	10	to	to	PART
dss-287	195	11	design	design	VERB
dss-287	195	12	,	,	PUNCT
dss-287	195	13	fabricate	fabricate	VERB
dss-287	195	14	,	,	PUNCT
dss-287	195	15	and	and	CCONJ
dss-287	195	16	evaluate	evaluate	VERB
dss-287	195	17	a	a	DET
dss-287	195	18	low	low	ADJ
dss-287	195	19	-	-	PUNCT
dss-287	195	20	cost	cost	NOUN
dss-287	195	21	newtonian	newtonian	ADJ
dss-287	195	22	telescope	telescope	NOUN
dss-287	195	23	using	use	VERB
dss-287	195	24	3d	3d	NUM
dss-287	195	25	printing	printing	NOUN
dss-287	195	26	technology	technology	NOUN
dss-287	195	27	.	.	PUNCT
dss-287	196	1	the	the	DET
dss-287	196	2	primary	primary	ADJ
dss-287	196	3	objectives	objective	NOUN
dss-287	196	4	were	be	AUX
dss-287	196	5	to	to	PART
dss-287	196	6	assess	assess	VERB
dss-287	196	7	the	the	DET
dss-287	196	8	feasibility	feasibility	NOUN
dss-287	196	9	of	of	ADP
dss-287	196	10	constructing	construct	VERB
dss-287	196	11	functional	functional	ADJ
dss-287	196	12	telescopes	telescope	NOUN
dss-287	196	13	with	with	ADP
dss-287	196	14	additive	additive	ADJ
dss-287	196	15	manufacturing	manufacturing	NOUN
dss-287	196	16	and	and	CCONJ
dss-287	196	17	to	to	PART
dss-287	196	18	develop	develop	VERB
dss-287	196	19	educational	educational	ADJ
dss-287	196	20	resources	resource	NOUN
dss-287	196	21	that	that	PRON
dss-287	196	22	facilitate	facilitate	VERB
dss-287	196	23	handson	handson	NOUN
dss-287	196	24	learning	learn	VERB
dss-287	196	25	in	in	ADP
dss-287	196	26	astronomy	astronomy	NOUN
dss-287	196	27	and	and	CCONJ
dss-287	196	28	engineering	engineering	NOUN
dss-287	196	29	.	.	PUNCT
dss-287	197	1	abdulrahman	abdulrahman	PROPN
dss-287	197	2	et	et	PROPN
dss-287	197	3	al	al	PROPN
dss-287	197	4	.	.	PUNCT
dss-287	198	1	[	[	X
dss-287	198	2	66	66	NUM
dss-287	198	3	]	]	PUNCT
dss-287	198	4	investigated	investigate	VERB
dss-287	198	5	how	how	SCONJ
dss-287	198	6	the	the	DET
dss-287	198	7	positioning	positioning	NOUN
dss-287	198	8	of	of	ADP
dss-287	198	9	the	the	DET
dss-287	198	10	secondary	secondary	ADJ
dss-287	198	11	mirror	mirror	NOUN
dss-287	198	12	affects	affect	VERB
dss-287	198	13	the	the	DET
dss-287	198	14	optical	optical	ADJ
dss-287	198	15	performance	performance	NOUN
dss-287	198	16	of	of	ADP
dss-287	198	17	maksutov	maksutov	NOUN
dss-287	198	18	–	–	PUNCT
dss-287	198	19	cassegrain	cassegrain	NOUN
dss-287	198	20	telescopes	telescope	NOUN
dss-287	198	21	.	.	PUNCT
dss-287	199	1	utilizing	utilize	VERB
dss-287	199	2	zemax	zemax	PROPN
dss-287	199	3	optical	optical	ADJ
dss-287	199	4	design	design	NOUN
dss-287	199	5	software	software	NOUN
dss-287	199	6	,	,	PUNCT
dss-287	199	7	the	the	DET
dss-287	199	8	study	study	NOUN
dss-287	199	9	models	model	NOUN
dss-287	199	10	and	and	CCONJ
dss-287	199	11	analyzes	analyze	VERB
dss-287	199	12	two	two	NUM
dss-287	199	13	configurations	configuration	NOUN
dss-287	199	14	(	(	PUNCT
dss-287	199	15	a	a	PRON
dss-287	199	16	and	and	CCONJ
dss-287	199	17	b	b	NOUN
dss-287	199	18	)	)	PUNCT
dss-287	199	19	.	.	PUNCT
dss-287	200	1	design	design	VERB
dss-287	200	2	a	a	DET
dss-287	200	3	features	feature	NOUN
dss-287	200	4	a	a	DET
dss-287	200	5	secondary	secondary	ADJ
dss-287	200	6	mirror	mirror	NOUN
dss-287	200	7	affixed	affix	VERB
dss-287	200	8	directly	directly	ADV
dss-287	200	9	to	to	ADP
dss-287	200	10	the	the	DET
dss-287	200	11	inner	inner	ADJ
dss-287	200	12	surface	surface	NOUN
dss-287	200	13	of	of	ADP
dss-287	200	14	the	the	DET
dss-287	200	15	maksutov	maksutov	PROPN
dss-287	200	16	corrector	corrector	PROPN
dss-287	200	17	lens	len	NOUN
dss-287	200	18	.	.	PUNCT
dss-287	201	1	design	design	NOUN
dss-287	201	2	b	b	PROPN
dss-287	201	3	employs	employ	VERB
dss-287	201	4	a	a	DET
dss-287	201	5	separate	separate	ADJ
dss-287	201	6	secondary	secondary	ADJ
dss-287	201	7	mirror	mirror	NOUN
dss-287	201	8	positioned	position	VERB
dss-287	201	9	between	between	ADP
dss-287	201	10	the	the	DET
dss-287	201	11	corrector	corrector	NOUN
dss-287	201	12	lens	lens	NOUN
dss-287	201	13	and	and	CCONJ
dss-287	201	14	the	the	DET
dss-287	201	15	primary	primary	ADJ
dss-287	201	16	mirror	mirror	NOUN
dss-287	201	17	,	,	PUNCT
dss-287	201	18	not	not	PART
dss-287	201	19	attached	attach	VERB
dss-287	201	20	to	to	ADP
dss-287	201	21	the	the	DET
dss-287	201	22	lens	len	NOUN
dss-287	201	23	.	.	PUNCT
dss-287	202	1	the	the	DET
dss-287	202	2	study	study	NOUN
dss-287	202	3	concludes	conclude	VERB
dss-287	202	4	that	that	SCONJ
dss-287	202	5	the	the	DET
dss-287	202	6	configuration	configuration	NOUN
dss-287	202	7	where	where	SCONJ
dss-287	202	8	the	the	DET
dss-287	202	9	secondary	secondary	ADJ
dss-287	202	10	mirror	mirror	NOUN
dss-287	202	11	is	be	AUX
dss-287	202	12	not	not	PART
dss-287	202	13	attached	attach	VERB
dss-287	202	14	to	to	ADP
dss-287	202	15	the	the	DET
dss-287	202	16	maksutov	maksutov	NOUN
dss-287	202	17	corrector	corrector	NOUN
dss-287	202	18	lens	lens	NOUN
dss-287	202	19	(	(	PUNCT
dss-287	202	20	design	design	NOUN
dss-287	202	21	b	b	NOUN
dss-287	202	22	)	)	PUNCT
dss-287	202	23	offers	offer	VERB
dss-287	202	24	superior	superior	ADJ
dss-287	202	25	optical	optical	ADJ
dss-287	202	26	efficiency	efficiency	NOUN
dss-287	202	27	and	and	CCONJ
dss-287	202	28	image	image	NOUN
dss-287	202	29	quality	quality	NOUN
dss-287	202	30	.	.	PUNCT
dss-287	203	1	this	this	DET
dss-287	203	2	design	design	NOUN
dss-287	203	3	choice	choice	NOUN
dss-287	203	4	reduces	reduce	VERB
dss-287	203	5	aberrations	aberration	NOUN
dss-287	203	6	and	and	CCONJ
dss-287	203	7	enhances	enhance	VERB
dss-287	203	8	overall	overall	ADJ
dss-287	203	9	performance	performance	NOUN
dss-287	203	10	,	,	PUNCT
dss-287	203	11	making	make	VERB
dss-287	203	12	it	it	PRON
dss-287	203	13	a	a	DET
dss-287	203	14	preferable	preferable	ADJ
dss-287	203	15	option	option	NOUN
dss-287	203	16	for	for	ADP
dss-287	203	17	applications	application	NOUN
dss-287	203	18	requiring	require	VERB
dss-287	203	19	high	high	ADJ
dss-287	203	20	-	-	PUNCT
dss-287	203	21	precision	precision	NOUN
dss-287	203	22	imaging	imaging	NOUN
dss-287	203	23	.	.	PUNCT
dss-287	204	1	hasan	hasan	PROPN
dss-287	205	1	[	[	X
dss-287	205	2	67	67	NUM
dss-287	205	3	]	]	PUNCT
dss-287	205	4	presents	present	VERB
dss-287	205	5	a	a	DET
dss-287	205	6	comprehensive	comprehensive	ADJ
dss-287	205	7	analysis	analysis	NOUN
dss-287	205	8	of	of	ADP
dss-287	205	9	the	the	DET
dss-287	205	10	optical	optical	ADJ
dss-287	205	11	performance	performance	NOUN
dss-287	205	12	of	of	ADP
dss-287	205	13	a	a	DET
dss-287	205	14	schmidt	schmidt	ADJ
dss-287	205	15	-	-	PUNCT
dss-287	205	16	cassegrain	cassegrain	NOUN
dss-287	205	17	telescope	telescope	NOUN
dss-287	205	18	(	(	PUNCT
dss-287	205	19	sct	sct	PROPN
dss-287	205	20	)	)	PUNCT
dss-287	205	21	design	design	NOUN
dss-287	205	22	,	,	PUNCT
dss-287	205	23	with	with	ADP
dss-287	205	24	a	a	DET
dss-287	205	25	particular	particular	ADJ
dss-287	205	26	focus	focus	NOUN
dss-287	205	27	on	on	ADP
dss-287	205	28	the	the	DET
dss-287	205	29	effects	effect	NOUN
dss-287	205	30	of	of	ADP
dss-287	205	31	spider	spider	NOUN
dss-287	205	32	obscuration	obscuration	NOUN
dss-287	205	33	.	.	PUNCT
dss-287	206	1	utilizing	utilize	VERB
dss-287	206	2	zemax	zemax	PROPN
dss-287	206	3	optical	optical	ADJ
dss-287	206	4	design	design	NOUN
dss-287	206	5	software	software	NOUN
dss-287	206	6	,	,	PUNCT
dss-287	206	7	the	the	DET
dss-287	206	8	study	study	NOUN
dss-287	206	9	aims	aim	VERB
dss-287	206	10	to	to	PART
dss-287	206	11	assess	assess	VERB
dss-287	206	12	how	how	SCONJ
dss-287	206	13	the	the	DET
dss-287	206	14	structural	structural	ADJ
dss-287	206	15	components	component	NOUN
dss-287	206	16	,	,	PUNCT
dss-287	206	17	specifically	specifically	ADV
dss-287	206	18	the	the	DET
dss-287	206	19	spider	spider	NOUN
dss-287	206	20	vanes	vane	NOUN
dss-287	206	21	supporting	support	VERB
dss-287	206	22	the	the	DET
dss-287	206	23	secondary	secondary	ADJ
dss-287	206	24	mirror	mirror	NOUN
dss-287	206	25	,	,	PUNCT
dss-287	206	26	influence	influence	NOUN
dss-287	206	27	image	image	NOUN
dss-287	206	28	quality	quality	NOUN
dss-287	206	29	.	.	PUNCT
dss-287	207	1	aljizany	aljizany	NOUN
dss-287	208	1	[	[	X
dss-287	208	2	68	68	NUM
dss-287	208	3	]	]	PUNCT
dss-287	208	4	explores	explore	VERB
dss-287	208	5	the	the	DET
dss-287	208	6	enhancement	enhancement	NOUN
dss-287	208	7	of	of	ADP
dss-287	208	8	the	the	DET
dss-287	208	9	hubble	hubble	ADJ
dss-287	208	10	space	space	NOUN
dss-287	208	11	telescope	telescope	NOUN
dss-287	208	12	's	's	PART
dss-287	208	13	optical	optical	ADJ
dss-287	208	14	performance	performance	NOUN
dss-287	208	15	through	through	ADP
dss-287	208	16	the	the	DET
dss-287	208	17	integration	integration	NOUN
dss-287	208	18	of	of	ADP
dss-287	208	19	nano	nano	NOUN
dss-287	208	20	-	-	PUNCT
dss-287	208	21	sensor	sensor	NOUN
dss-287	208	22	technology	technology	NOUN
dss-287	208	23	at	at	ADP
dss-287	208	24	the	the	DET
dss-287	208	25	eyepiece	eyepiece	NOUN
dss-287	208	26	.	.	PUNCT
dss-287	208	27	utilizing	utilize	VERB
dss-287	208	28	the	the	DET
dss-287	208	29	zemax	zemax	PROPN
dss-287	208	30	optical	optical	ADJ
dss-287	208	31	design	design	NOUN
dss-287	208	32	software	software	NOUN
dss-287	208	33	,	,	PUNCT
dss-287	208	34	the	the	DET
dss-287	208	35	study	study	NOUN
dss-287	208	36	simulates	simulate	VERB
dss-287	208	37	the	the	DET
dss-287	208	38	telescope	telescope	NOUN
dss-287	208	39	's	's	PART
dss-287	208	40	optical	optical	ADJ
dss-287	208	41	system	system	NOUN
dss-287	208	42	to	to	PART
dss-287	208	43	assess	assess	VERB
dss-287	208	44	the	the	DET
dss-287	208	45	impact	impact	NOUN
dss-287	208	46	of	of	ADP
dss-287	208	47	nano	nano	NOUN
dss-287	208	48	-	-	PUNCT
dss-287	208	49	sensors	sensor	NOUN
dss-287	208	50	on	on	ADP
dss-287	208	51	image	image	NOUN
dss-287	208	52	quality	quality	NOUN
dss-287	208	53	.	.	PUNCT
dss-287	209	1	alcant	alcant	PROPN
dss-287	210	1	[	[	X
dss-287	210	2	69	69	NUM
dss-287	210	3	]	]	PUNCT
dss-287	210	4	presents	present	VERB
dss-287	210	5	a	a	DET
dss-287	210	6	study	study	NOUN
dss-287	210	7	on	on	ADP
dss-287	210	8	the	the	DET
dss-287	210	9	design	design	NOUN
dss-287	210	10	and	and	CCONJ
dss-287	210	11	simulation	simulation	NOUN
dss-287	210	12	of	of	ADP
dss-287	210	13	a	a	DET
dss-287	210	14	terrestrial	terrestrial	ADJ
dss-287	210	15	refractive	refractive	ADJ
dss-287	210	16	binocular	binocular	ADJ
dss-287	210	17	telescope	telescope	NOUN
dss-287	210	18	with	with	ADP
dss-287	210	19	adjustable	adjustable	ADJ
dss-287	210	20	effective	effective	ADJ
dss-287	210	21	focal	focal	ADJ
dss-287	210	22	length	length	NOUN
dss-287	210	23	.	.	PUNCT
dss-287	211	1	it	it	PRON
dss-287	211	2	was	be	AUX
dss-287	211	3	investigated	investigate	VERB
dss-287	211	4	how	how	SCONJ
dss-287	211	5	changes	change	NOUN
dss-287	211	6	in	in	ADP
dss-287	211	7	the	the	DET
dss-287	211	8	effective	effective	ADJ
dss-287	211	9	focal	focal	ADJ
dss-287	211	10	length	length	NOUN
dss-287	211	11	impact	impact	NOUN
dss-287	211	12	image	image	NOUN
dss-287	211	13	quality	quality	NOUN
dss-287	211	14	and	and	CCONJ
dss-287	211	15	overall	overall	ADJ
dss-287	211	16	optical	optical	ADJ
dss-287	211	17	performance	performance	NOUN
dss-287	211	18	.	.	PUNCT
dss-287	212	1	other	other	ADJ
dss-287	212	2	relevant	relevant	ADJ
dss-287	212	3	papers	paper	NOUN
dss-287	212	4	,	,	PUNCT
dss-287	212	5	regarding	regard	VERB
dss-287	212	6	the	the	DET
dss-287	212	7	design	design	NOUN
dss-287	212	8	of	of	ADP
dss-287	212	9	the	the	DET
dss-287	212	10	astronomical	astronomical	ADJ
dss-287	212	11	telescope	telescope	NOUN
dss-287	212	12	,	,	PUNCT
dss-287	212	13	with	with	ADP
dss-287	212	14	emphasis	emphasis	NOUN
dss-287	212	15	on	on	ADP
dss-287	212	16	amateur	amateur	ADJ
dss-287	212	17	design	design	NOUN
dss-287	212	18	,	,	PUNCT
dss-287	212	19	can	can	AUX
dss-287	212	20	be	be	AUX
dss-287	212	21	found	find	VERB
dss-287	212	22	in	in	ADP
dss-287	212	23	references	reference	NOUN
dss-287	212	24	[	[	X
dss-287	212	25	70	70	NUM
dss-287	212	26	-	-	SYM
dss-287	212	27	153	153	NUM
dss-287	212	28	]	]	PUNCT
dss-287	212	29	.	.	PUNCT
dss-287	213	1	dss	dss	NOUN
dss-287	213	2	vol	vol	NOUN
dss-287	213	3	.	.	PROPN
dss-287	214	1	6	6	NUM
dss-287	214	2	,	,	PUNCT
dss-287	214	3	no	no	INTJ
dss-287	214	4	.	.	NOUN
dss-287	214	5	1	1	NUM
dss-287	214	6	,	,	PUNCT
dss-287	214	7	2025	2025	NUM
dss-287	214	8	,	,	PUNCT
dss-287	214	9	pp.49	pp.49	NOUN
dss-287	214	10	-	-	SYM
dss-287	214	11	90	90	NUM
dss-287	214	12	55	55	NUM
dss-287	214	13	3	3	NUM
dss-287	214	14	.	.	PUNCT
dss-287	214	15	image	image	NOUN
dss-287	214	16	quality	quality	NOUN
dss-287	214	17	considerations	consideration	NOUN
dss-287	214	18	the	the	DET
dss-287	214	19	performance	performance	NOUN
dss-287	214	20	of	of	ADP
dss-287	214	21	an	an	DET
dss-287	214	22	optical	optical	ADJ
dss-287	214	23	system	system	NOUN
dss-287	214	24	is	be	AUX
dss-287	214	25	primarily	primarily	ADV
dss-287	214	26	influenced	influence	VERB
dss-287	214	27	by	by	ADP
dss-287	214	28	the	the	DET
dss-287	214	29	aberrations	aberration	NOUN
dss-287	214	30	inherent	inherent	ADJ
dss-287	214	31	in	in	ADP
dss-287	214	32	its	its	PRON
dss-287	214	33	design	design	NOUN
dss-287	214	34	.	.	PUNCT
dss-287	215	1	these	these	DET
dss-287	215	2	aberrations	aberration	NOUN
dss-287	215	3	are	be	AUX
dss-287	215	4	categorized	categorize	VERB
dss-287	215	5	into	into	ADP
dss-287	215	6	two	two	NUM
dss-287	215	7	main	main	ADJ
dss-287	215	8	types	type	NOUN
dss-287	215	9	:	:	PUNCT
dss-287	216	1	1	1	X
dss-287	216	2	.	.	X
dss-287	216	3	monochromatic	monochromatic	ADJ
dss-287	216	4	aberrations	aberration	NOUN
dss-287	216	5	:	:	PUNCT
dss-287	216	6	these	these	PRON
dss-287	216	7	occur	occur	VERB
dss-287	216	8	when	when	SCONJ
dss-287	216	9	light	light	NOUN
dss-287	216	10	of	of	ADP
dss-287	216	11	a	a	DET
dss-287	216	12	single	single	ADJ
dss-287	216	13	wavelength	wavelength	NOUN
dss-287	216	14	passes	pass	VERB
dss-287	216	15	through	through	ADP
dss-287	216	16	the	the	DET
dss-287	216	17	system	system	NOUN
dss-287	216	18	.	.	PUNCT
dss-287	217	1	they	they	PRON
dss-287	217	2	are	be	AUX
dss-287	217	3	present	present	ADJ
dss-287	217	4	in	in	ADP
dss-287	217	5	both	both	PRON
dss-287	217	6	refracting	refracting	NOUN
dss-287	217	7	and	and	CCONJ
dss-287	217	8	reflecting	reflect	VERB
dss-287	217	9	optical	optical	ADJ
dss-287	217	10	systems	system	NOUN
dss-287	217	11	.	.	PUNCT
dss-287	218	1	2	2	X
dss-287	218	2	.	.	X
dss-287	218	3	chromatic	chromatic	ADJ
dss-287	218	4	aberrations	aberration	NOUN
dss-287	218	5	:	:	PUNCT
dss-287	218	6	these	these	PRON
dss-287	218	7	arise	arise	VERB
dss-287	218	8	due	due	ADP
dss-287	218	9	to	to	ADP
dss-287	218	10	the	the	DET
dss-287	218	11	dispersion	dispersion	NOUN
dss-287	218	12	of	of	ADP
dss-287	218	13	light	light	NOUN
dss-287	218	14	,	,	PUNCT
dss-287	218	15	where	where	SCONJ
dss-287	218	16	different	different	ADJ
dss-287	218	17	wavelengths	wavelength	NOUN
dss-287	218	18	are	be	AUX
dss-287	218	19	refracted	refract	VERB
dss-287	218	20	by	by	ADP
dss-287	218	21	varying	vary	VERB
dss-287	218	22	amounts	amount	NOUN
dss-287	218	23	,	,	PUNCT
dss-287	218	24	leading	lead	VERB
dss-287	218	25	to	to	ADP
dss-287	218	26	focus	focus	NOUN
dss-287	218	27	discrepancies	discrepancy	NOUN
dss-287	218	28	.	.	PUNCT
dss-287	219	1	chromatic	chromatic	ADJ
dss-287	219	2	aberrations	aberration	NOUN
dss-287	219	3	are	be	AUX
dss-287	219	4	exclusive	exclusive	ADJ
dss-287	219	5	to	to	ADP
dss-287	219	6	systems	system	NOUN
dss-287	219	7	containing	contain	VERB
dss-287	219	8	refractive	refractive	ADJ
dss-287	219	9	elements	element	NOUN
dss-287	219	10	.	.	PUNCT
dss-287	220	1	when	when	SCONJ
dss-287	220	2	aberrations	aberration	NOUN
dss-287	220	3	are	be	AUX
dss-287	220	4	present	present	ADJ
dss-287	220	5	in	in	ADP
dss-287	220	6	the	the	DET
dss-287	220	7	image	image	NOUN
dss-287	220	8	,	,	PUNCT
dss-287	220	9	the	the	DET
dss-287	220	10	image	image	NOUN
dss-287	220	11	of	of	ADP
dss-287	220	12	a	a	DET
dss-287	220	13	point	point	NOUN
dss-287	220	14	source	source	NOUN
dss-287	220	15	becomes	become	VERB
dss-287	220	16	a	a	DET
dss-287	220	17	blur	blur	NOUN
dss-287	220	18	,	,	PUNCT
dss-287	220	19	known	know	VERB
dss-287	220	20	as	as	ADP
dss-287	220	21	the	the	DET
dss-287	220	22	"	"	PUNCT
dss-287	220	23	scattering	scatter	VERB
dss-287	220	24	figure	figure	NOUN
dss-287	220	25	"	"	PUNCT
dss-287	220	26	or	or	CCONJ
dss-287	220	27	"	"	PUNCT
dss-287	220	28	blur	blur	ADJ
dss-287	220	29	circle	circle	NOUN
dss-287	220	30	.	.	PUNCT
dss-287	220	31	"	"	PUNCT
dss-287	221	1	this	this	DET
dss-287	221	2	blur	blur	NOUN
dss-287	221	3	results	result	NOUN
dss-287	221	4	from	from	ADP
dss-287	221	5	a	a	DET
dss-287	221	6	combination	combination	NOUN
dss-287	221	7	of	of	ADP
dss-287	221	8	various	various	ADJ
dss-287	221	9	aberrations	aberration	NOUN
dss-287	221	10	rather	rather	ADV
dss-287	221	11	than	than	ADP
dss-287	221	12	a	a	DET
dss-287	221	13	single	single	ADJ
dss-287	221	14	type	type	NOUN
dss-287	221	15	.	.	PUNCT
dss-287	222	1	the	the	DET
dss-287	222	2	primary	primary	ADJ
dss-287	222	3	monochromatic	monochromatic	ADJ
dss-287	222	4	aberrations	aberration	NOUN
dss-287	222	5	include	include	VERB
dss-287	222	6	:	:	PUNCT
dss-287	222	7			NOUN
dss-287	222	8	spherical	spherical	ADJ
dss-287	222	9	aberration	aberration	NOUN
dss-287	222	10	:	:	PUNCT
dss-287	222	11	occurs	occur	VERB
dss-287	222	12	when	when	SCONJ
dss-287	222	13	light	light	ADJ
dss-287	222	14	rays	ray	NOUN
dss-287	222	15	parallel	parallel	VERB
dss-287	222	16	to	to	ADP
dss-287	222	17	the	the	DET
dss-287	222	18	optical	optical	ADJ
dss-287	222	19	axis	axis	NOUN
dss-287	222	20	enter	enter	VERB
dss-287	222	21	the	the	DET
dss-287	222	22	system	system	NOUN
dss-287	222	23	at	at	ADP
dss-287	222	24	different	different	ADJ
dss-287	222	25	heights	height	NOUN
dss-287	222	26	and	and	CCONJ
dss-287	222	27	converge	converge	VERB
dss-287	222	28	at	at	ADP
dss-287	222	29	different	different	ADJ
dss-287	222	30	points	point	NOUN
dss-287	222	31	along	along	ADP
dss-287	222	32	the	the	DET
dss-287	222	33	axis	axis	NOUN
dss-287	222	34	.	.	PUNCT
dss-287	223	1	this	this	PRON
dss-287	223	2	can	can	AUX
dss-287	223	3	be	be	AUX
dss-287	223	4	mitigated	mitigate	VERB
dss-287	223	5	by	by	ADP
dss-287	223	6	restricting	restrict	VERB
dss-287	223	7	the	the	DET
dss-287	223	8	aperture	aperture	NOUN
dss-287	223	9	,	,	PUNCT
dss-287	223	10	though	though	SCONJ
dss-287	223	11	it	it	PRON
dss-287	223	12	may	may	AUX
dss-287	223	13	reduce	reduce	VERB
dss-287	223	14	light	light	ADJ
dss-287	223	15	-	-	PUNCT
dss-287	223	16	gathering	gather	VERB
dss-287	223	17	capacity	capacity	NOUN
dss-287	223	18	.	.	PUNCT
dss-287	224	1			X
dss-287	224	2	coma	coma	NOUN
dss-287	224	3	:	:	PUNCT
dss-287	224	4	manifested	manifest	VERB
dss-287	224	5	as	as	ADP
dss-287	224	6	a	a	DET
dss-287	224	7	comet	comet	NOUN
dss-287	224	8	-	-	PUNCT
dss-287	224	9	shaped	shape	VERB
dss-287	224	10	blur	blur	NOUN
dss-287	224	11	,	,	PUNCT
dss-287	224	12	coma	coma	NOUN
dss-287	224	13	arises	arise	VERB
dss-287	224	14	when	when	SCONJ
dss-287	224	15	off	off	ADP
dss-287	224	16	-	-	PUNCT
dss-287	224	17	axis	axis	NOUN
dss-287	224	18	light	light	NOUN
dss-287	224	19	rays	ray	NOUN
dss-287	224	20	do	do	AUX
dss-287	224	21	not	not	PART
dss-287	224	22	converge	converge	VERB
dss-287	224	23	at	at	ADP
dss-287	224	24	the	the	DET
dss-287	224	25	same	same	ADJ
dss-287	224	26	point	point	NOUN
dss-287	224	27	,	,	PUNCT
dss-287	224	28	leading	lead	VERB
dss-287	224	29	to	to	ADP
dss-287	224	30	asymmetric	asymmetric	ADJ
dss-287	224	31	image	image	NOUN
dss-287	224	32	blurring	blurring	NOUN
dss-287	224	33	.	.	PUNCT
dss-287	225	1	it	it	PRON
dss-287	225	2	is	be	AUX
dss-287	225	3	particularly	particularly	ADV
dss-287	225	4	problematic	problematic	ADJ
dss-287	225	5	in	in	ADP
dss-287	225	6	astrophotography	astrophotography	NOUN
dss-287	225	7	,	,	PUNCT
dss-287	225	8	as	as	SCONJ
dss-287	225	9	it	it	PRON
dss-287	225	10	distorts	distort	VERB
dss-287	225	11	star	star	NOUN
dss-287	225	12	images	image	NOUN
dss-287	225	13	,	,	PUNCT
dss-287	225	14	making	make	VERB
dss-287	225	15	precise	precise	ADJ
dss-287	225	16	measurements	measurement	NOUN
dss-287	225	17	challenging	challenging	ADJ
dss-287	225	18	.	.	PUNCT
dss-287	226	1			X
dss-287	226	2	astigmatism	astigmatism	NOUN
dss-287	226	3	:	:	PUNCT
dss-287	226	4	this	this	DET
dss-287	226	5	aberration	aberration	NOUN
dss-287	226	6	occurs	occur	VERB
dss-287	226	7	when	when	SCONJ
dss-287	226	8	light	light	ADJ
dss-287	226	9	rays	ray	NOUN
dss-287	226	10	in	in	ADP
dss-287	226	11	different	different	ADJ
dss-287	226	12	planes	plane	NOUN
dss-287	226	13	(	(	PUNCT
dss-287	226	14	tangential	tangential	ADJ
dss-287	226	15	and	and	CCONJ
dss-287	226	16	sagittal	sagittal	ADJ
dss-287	226	17	)	)	PUNCT
dss-287	226	18	focus	focus	NOUN
dss-287	226	19	at	at	ADP
dss-287	226	20	different	different	ADJ
dss-287	226	21	points	point	NOUN
dss-287	226	22	,	,	PUNCT
dss-287	226	23	resulting	result	VERB
dss-287	226	24	in	in	ADP
dss-287	226	25	an	an	DET
dss-287	226	26	image	image	NOUN
dss-287	226	27	that	that	PRON
dss-287	226	28	is	be	AUX
dss-287	226	29	sharp	sharp	ADJ
dss-287	226	30	in	in	ADP
dss-287	226	31	one	one	NUM
dss-287	226	32	direction	direction	NOUN
dss-287	226	33	but	but	CCONJ
dss-287	226	34	blurred	blur	VERB
dss-287	226	35	in	in	ADP
dss-287	226	36	another	another	PRON
dss-287	226	37	.	.	PUNCT
dss-287	227	1			PRON
dss-287	227	2	field	field	NOUN
dss-287	227	3	curvature	curvature	NOUN
dss-287	227	4	:	:	PUNCT
dss-287	227	5	refers	refer	VERB
dss-287	227	6	to	to	ADP
dss-287	227	7	the	the	DET
dss-287	227	8	phenomenon	phenomenon	NOUN
dss-287	227	9	where	where	SCONJ
dss-287	227	10	the	the	DET
dss-287	227	11	image	image	NOUN
dss-287	227	12	is	be	AUX
dss-287	227	13	sharp	sharp	ADJ
dss-287	227	14	only	only	ADV
dss-287	227	15	on	on	ADP
dss-287	227	16	a	a	DET
dss-287	227	17	curved	curved	ADJ
dss-287	227	18	focal	focal	ADJ
dss-287	227	19	plane	plane	NOUN
dss-287	227	20	,	,	PUNCT
dss-287	227	21	not	not	PART
dss-287	227	22	on	on	ADP
dss-287	227	23	a	a	DET
dss-287	227	24	flat	flat	ADJ
dss-287	227	25	one	one	NOUN
dss-287	227	26	.	.	PUNCT
dss-287	228	1	using	use	VERB
dss-287	228	2	a	a	DET
dss-287	228	3	flat	flat	ADJ
dss-287	228	4	sensor	sensor	NOUN
dss-287	228	5	or	or	CCONJ
dss-287	228	6	photographic	photographic	ADJ
dss-287	228	7	plate	plate	NOUN
dss-287	228	8	leads	lead	VERB
dss-287	228	9	to	to	ADP
dss-287	228	10	unsharp	unsharp	ADJ
dss-287	228	11	images	image	NOUN
dss-287	228	12	at	at	ADP
dss-287	228	13	the	the	DET
dss-287	228	14	periphery	periphery	NOUN
dss-287	228	15	.	.	PUNCT
dss-287	229	1	this	this	PRON
dss-287	229	2	can	can	AUX
dss-287	229	3	be	be	AUX
dss-287	229	4	corrected	correct	VERB
dss-287	229	5	by	by	ADP
dss-287	229	6	employing	employ	VERB
dss-287	229	7	field	field	NOUN
dss-287	229	8	flatteners	flattener	NOUN
dss-287	229	9	or	or	CCONJ
dss-287	229	10	using	use	VERB
dss-287	229	11	curved	curved	ADJ
dss-287	229	12	photographic	photographic	ADJ
dss-287	229	13	films	film	NOUN
dss-287	229	14	.	.	PUNCT
dss-287	230	1			PRON
dss-287	230	2	distortion	distortion	NOUN
dss-287	230	3	:	:	PUNCT
dss-287	230	4	unlike	unlike	ADP
dss-287	230	5	other	other	ADJ
dss-287	230	6	aberrations	aberration	NOUN
dss-287	230	7	,	,	PUNCT
dss-287	230	8	distortion	distortion	NOUN
dss-287	230	9	affects	affect	VERB
dss-287	230	10	the	the	DET
dss-287	230	11	image	image	NOUN
dss-287	230	12	scale	scale	NOUN
dss-287	230	13	rather	rather	ADV
dss-287	230	14	than	than	ADP
dss-287	230	15	sharpness	sharpness	NOUN
dss-287	230	16	.	.	PUNCT
dss-287	231	1	positive	positive	ADJ
dss-287	231	2	distortion	distortion	NOUN
dss-287	231	3	(	(	PUNCT
dss-287	231	4	pincushion	pincushion	NOUN
dss-287	231	5	)	)	PUNCT
dss-287	231	6	causes	cause	VERB
dss-287	231	7	straight	straight	ADJ
dss-287	231	8	lines	line	NOUN
dss-287	231	9	to	to	PART
dss-287	231	10	bend	bend	VERB
dss-287	231	11	inward	inward	ADV
dss-287	231	12	,	,	PUNCT
dss-287	231	13	while	while	SCONJ
dss-287	231	14	negative	negative	ADJ
dss-287	231	15	distortion	distortion	NOUN
dss-287	231	16	(	(	PUNCT
dss-287	231	17	barrel	barrel	NOUN
dss-287	231	18	)	)	PUNCT
dss-287	231	19	causes	cause	VERB
dss-287	231	20	them	they	PRON
dss-287	231	21	to	to	PART
dss-287	231	22	bulge	bulge	VERB
dss-287	231	23	outward	outward	ADV
dss-287	231	24	.	.	PUNCT
dss-287	232	1	3.1	3.1	NUM
dss-287	232	2	image	image	NOUN
dss-287	232	3	quality	quality	NOUN
dss-287	232	4	criteria	criterion	NOUN
dss-287	232	5	image	image	NOUN
dss-287	232	6	quality	quality	NOUN
dss-287	232	7	criteria	criterion	NOUN
dss-287	232	8	for	for	ADP
dss-287	232	9	telescopes	telescope	NOUN
dss-287	232	10	refer	refer	VERB
dss-287	232	11	to	to	ADP
dss-287	232	12	the	the	DET
dss-287	232	13	set	set	NOUN
dss-287	232	14	of	of	ADP
dss-287	232	15	factors	factor	NOUN
dss-287	232	16	and	and	CCONJ
dss-287	232	17	parameters	parameter	NOUN
dss-287	232	18	that	that	PRON
dss-287	232	19	determine	determine	VERB
dss-287	232	20	how	how	SCONJ
dss-287	232	21	well	well	ADV
dss-287	232	22	a	a	DET
dss-287	232	23	telescope	telescope	NOUN
dss-287	232	24	can	can	AUX
dss-287	232	25	produce	produce	VERB
dss-287	232	26	clear	clear	ADJ
dss-287	232	27	,	,	PUNCT
dss-287	232	28	sharp	sharp	ADJ
dss-287	232	29	,	,	PUNCT
dss-287	232	30	and	and	CCONJ
dss-287	232	31	accurate	accurate	ADJ
dss-287	232	32	images	image	NOUN
dss-287	232	33	of	of	ADP
dss-287	232	34	celestial	celestial	ADJ
dss-287	232	35	objects	object	NOUN
dss-287	232	36	.	.	PUNCT
dss-287	233	1	here	here	ADV
dss-287	233	2	are	be	AUX
dss-287	233	3	the	the	DET
dss-287	233	4	key	key	ADJ
dss-287	233	5	criteria	criterion	NOUN
dss-287	233	6	commonly	commonly	ADV
dss-287	233	7	used	use	VERB
dss-287	233	8	to	to	PART
dss-287	233	9	evaluate	evaluate	VERB
dss-287	233	10	telescope	telescope	NOUN
dss-287	233	11	image	image	NOUN
dss-287	233	12	quality	quality	NOUN
dss-287	233	13	:	:	PUNCT
dss-287	233	14	1	1	X
dss-287	233	15	.	.	X
dss-287	233	16	resolution	resolution	NOUN
dss-287	233	17	o	o	NOUN
dss-287	233	18	the	the	DET
dss-287	233	19	ability	ability	NOUN
dss-287	233	20	to	to	PART
dss-287	233	21	distinguish	distinguish	VERB
dss-287	233	22	fine	fine	ADJ
dss-287	233	23	detail	detail	NOUN
dss-287	233	24	and	and	CCONJ
dss-287	233	25	separate	separate	VERB
dss-287	233	26	closely	closely	ADV
dss-287	233	27	spaced	space	VERB
dss-287	233	28	objects	object	NOUN
dss-287	233	29	.	.	PUNCT
dss-287	234	1	limited	limit	VERB
dss-287	234	2	by	by	ADP
dss-287	234	3	the	the	DET
dss-287	234	4	telescope	telescope	NOUN
dss-287	234	5	’s	’s	PART
dss-287	234	6	aperture	aperture	NOUN
dss-287	234	7	and	and	CCONJ
dss-287	234	8	affected	affect	VERB
dss-287	234	9	by	by	ADP
dss-287	234	10	diffraction	diffraction	NOUN
dss-287	234	11	.	.	PUNCT
dss-287	235	1	2	2	X
dss-287	235	2	.	.	X
dss-287	235	3	contrast	contrast	VERB
dss-287	235	4	o	o	NOUN
dss-287	235	5	the	the	DET
dss-287	235	6	ability	ability	NOUN
dss-287	235	7	to	to	PART
dss-287	235	8	display	display	VERB
dss-287	235	9	differences	difference	NOUN
dss-287	235	10	in	in	ADP
dss-287	235	11	brightness	brightness	NOUN
dss-287	235	12	between	between	ADP
dss-287	235	13	features	feature	NOUN
dss-287	235	14	.	.	PUNCT
dss-287	236	1	high	high	ADJ
dss-287	236	2	contrast	contrast	NOUN
dss-287	236	3	is	be	AUX
dss-287	236	4	important	important	ADJ
dss-287	236	5	for	for	ADP
dss-287	236	6	observing	observe	VERB
dss-287	236	7	faint	faint	ADJ
dss-287	236	8	objects	object	NOUN
dss-287	236	9	near	near	ADP
dss-287	236	10	bright	bright	ADJ
dss-287	236	11	ones	one	NOUN
dss-287	236	12	.	.	PUNCT
dss-287	237	1	3	3	X
dss-287	237	2	.	.	X
dss-287	237	3	aberration	aberration	NOUN
dss-287	237	4	control	control	NOUN
dss-287	237	5	o	o	NOUN
dss-287	237	6	minimizing	minimize	VERB
dss-287	237	7	optical	optical	ADJ
dss-287	237	8	defects	defect	NOUN
dss-287	237	9	such	such	ADJ
dss-287	237	10	as	as	ADP
dss-287	237	11	chromatic	chromatic	ADJ
dss-287	237	12	aberration	aberration	NOUN
dss-287	237	13	,	,	PUNCT
dss-287	237	14	spherical	spherical	ADJ
dss-287	237	15	aberration	aberration	NOUN
dss-287	237	16	,	,	PUNCT
dss-287	237	17	coma	coma	NOUN
dss-287	237	18	,	,	PUNCT
dss-287	237	19	astigmatism	astigmatism	NOUN
dss-287	237	20	,	,	PUNCT
dss-287	237	21	and	and	CCONJ
dss-287	237	22	field	field	NOUN
dss-287	237	23	curvature	curvature	NOUN
dss-287	237	24	.	.	PUNCT
dss-287	238	1	4	4	X
dss-287	238	2	.	.	X
dss-287	238	3	field	field	NOUN
dss-287	238	4	of	of	ADP
dss-287	238	5	view	view	NOUN
dss-287	238	6	(	(	PUNCT
dss-287	238	7	fov	fov	PROPN
dss-287	238	8	)	)	PUNCT
dss-287	238	9	o	o	NOUN
dss-287	239	1	the	the	DET
dss-287	239	2	angular	angular	ADJ
dss-287	239	3	size	size	NOUN
dss-287	239	4	of	of	ADP
dss-287	239	5	the	the	DET
dss-287	239	6	sky	sky	NOUN
dss-287	239	7	visible	visible	ADJ
dss-287	239	8	through	through	ADP
dss-287	239	9	the	the	DET
dss-287	239	10	telescope	telescope	NOUN
dss-287	239	11	;	;	PUNCT
dss-287	239	12	wider	wide	ADJ
dss-287	239	13	fovs	fovs	NOUN
dss-287	239	14	are	be	AUX
dss-287	239	15	better	well	ADJ
dss-287	239	16	for	for	ADP
dss-287	239	17	extended	extended	ADJ
dss-287	239	18	objects	object	NOUN
dss-287	239	19	or	or	CCONJ
dss-287	239	20	star	star	NOUN
dss-287	239	21	fields	field	NOUN
dss-287	239	22	.	.	PUNCT
dss-287	240	1	5	5	X
dss-287	240	2	.	.	X
dss-287	240	3	light	light	ADJ
dss-287	240	4	gathering	gathering	NOUN
dss-287	240	5	power	power	NOUN
dss-287	240	6	o	o	NOUN
dss-287	240	7	the	the	DET
dss-287	240	8	amount	amount	NOUN
dss-287	240	9	of	of	ADP
dss-287	240	10	light	light	NOUN
dss-287	240	11	collected	collect	VERB
dss-287	240	12	,	,	PUNCT
dss-287	240	13	primarily	primarily	ADV
dss-287	240	14	determined	determine	VERB
dss-287	240	15	by	by	ADP
dss-287	240	16	aperture	aperture	ADJ
dss-287	240	17	size	size	NOUN
dss-287	240	18	,	,	PUNCT
dss-287	240	19	impacts	impact	VERB
dss-287	240	20	brightness	brightness	NOUN
dss-287	240	21	and	and	CCONJ
dss-287	240	22	detail	detail	NOUN
dss-287	240	23	visibility	visibility	NOUN
dss-287	240	24	.	.	PUNCT
dss-287	241	1	6	6	X
dss-287	241	2	.	.	X
dss-287	241	3	diffraction	diffraction	NOUN
dss-287	241	4	limit	limit	NOUN
dss-287	241	5	o	o	X
dss-287	241	6	the	the	DET
dss-287	241	7	fundamental	fundamental	ADJ
dss-287	241	8	limit	limit	NOUN
dss-287	241	9	on	on	ADP
dss-287	241	10	resolution	resolution	NOUN
dss-287	241	11	caused	cause	VERB
dss-287	241	12	by	by	ADP
dss-287	241	13	light	light	ADJ
dss-287	241	14	diffraction	diffraction	NOUN
dss-287	241	15	defines	define	VERB
dss-287	241	16	the	the	DET
dss-287	241	17	best	good	ADJ
dss-287	241	18	possible	possible	ADJ
dss-287	241	19	image	image	NOUN
dss-287	241	20	sharpness	sharpness	NOUN
dss-287	241	21	.	.	PUNCT
dss-287	242	1	7	7	X
dss-287	242	2	.	.	X
dss-287	242	3	image	image	NOUN
dss-287	242	4	brightness	brightness	NOUN
dss-287	242	5	o	o	PROPN
dss-287	242	6	related	relate	VERB
dss-287	242	7	to	to	ADP
dss-287	242	8	aperture	aperture	NOUN
dss-287	242	9	and	and	CCONJ
dss-287	242	10	focal	focal	ADJ
dss-287	242	11	ratio	ratio	NOUN
dss-287	242	12	,	,	PUNCT
dss-287	242	13	affecting	affect	VERB
dss-287	242	14	the	the	DET
dss-287	242	15	visibility	visibility	NOUN
dss-287	242	16	of	of	ADP
dss-287	242	17	faint	faint	ADJ
dss-287	242	18	details	detail	NOUN
dss-287	242	19	.	.	PUNCT
dss-287	243	1	dss	dss	NOUN
dss-287	243	2	vol	vol	NOUN
dss-287	243	3	.	.	PROPN
dss-287	244	1	6	6	NUM
dss-287	244	2	,	,	PUNCT
dss-287	244	3	no	no	INTJ
dss-287	244	4	.	.	NOUN
dss-287	244	5	1	1	NUM
dss-287	244	6	,	,	PUNCT
dss-287	244	7	2025	2025	NUM
dss-287	244	8	,	,	PUNCT
dss-287	244	9	pp.49	pp.49	NOUN
dss-287	244	10	-	-	SYM
dss-287	244	11	90	90	NUM
dss-287	244	12	56	56	NUM
dss-287	244	13	8	8	NUM
dss-287	244	14	.	.	PUNCT
dss-287	244	15	point	point	NOUN
dss-287	244	16	spread	spread	VERB
dss-287	244	17	function	function	NOUN
dss-287	244	18	(	(	PUNCT
dss-287	244	19	psf	psf	NOUN
dss-287	244	20	)	)	PUNCT
dss-287	244	21	and	and	CCONJ
dss-287	244	22	airy	airy	ADJ
dss-287	244	23	disk	disk	NOUN
dss-287	244	24	size	size	NOUN
dss-287	244	25	o	o	NOUN
dss-287	244	26	describes	describe	VERB
dss-287	244	27	how	how	SCONJ
dss-287	244	28	a	a	DET
dss-287	244	29	point	point	NOUN
dss-287	244	30	source	source	NOUN
dss-287	244	31	(	(	PUNCT
dss-287	244	32	like	like	ADP
dss-287	244	33	a	a	DET
dss-287	244	34	star	star	NOUN
dss-287	244	35	)	)	PUNCT
dss-287	244	36	is	be	AUX
dss-287	244	37	imaged	image	VERB
dss-287	244	38	;	;	PUNCT
dss-287	244	39	a	a	DET
dss-287	244	40	smaller	small	ADJ
dss-287	244	41	and	and	CCONJ
dss-287	244	42	more	more	ADV
dss-287	244	43	concentrated	concentrated	ADJ
dss-287	244	44	psf	psf	NOUN
dss-287	244	45	means	mean	VERB
dss-287	244	46	sharper	sharp	ADJ
dss-287	244	47	images	image	NOUN
dss-287	244	48	.	.	PUNCT
dss-287	245	1	9	9	X
dss-287	245	2	.	.	X
dss-287	245	3	mechanical	mechanical	ADJ
dss-287	245	4	and	and	CCONJ
dss-287	245	5	thermal	thermal	ADJ
dss-287	245	6	stability	stability	NOUN
dss-287	245	7	o	o	NOUN
dss-287	245	8	stability	stability	NOUN
dss-287	245	9	affects	affect	VERB
dss-287	245	10	focus	focus	NOUN
dss-287	245	11	consistency	consistency	NOUN
dss-287	245	12	and	and	CCONJ
dss-287	245	13	image	image	NOUN
dss-287	245	14	sharpness	sharpness	NOUN
dss-287	245	15	,	,	PUNCT
dss-287	245	16	as	as	SCONJ
dss-287	245	17	vibrations	vibration	NOUN
dss-287	245	18	or	or	CCONJ
dss-287	245	19	temperature	temperature	NOUN
dss-287	245	20	changes	change	NOUN
dss-287	245	21	can	can	AUX
dss-287	245	22	degrade	degrade	VERB
dss-287	245	23	image	image	NOUN
dss-287	245	24	quality	quality	NOUN
dss-287	245	25	.	.	PUNCT
dss-287	246	1	10	10	NUM
dss-287	246	2	.	.	PUNCT
dss-287	246	3	optical	optical	ADJ
dss-287	246	4	coatings	coating	NOUN
dss-287	246	5	and	and	CCONJ
dss-287	246	6	transmission	transmission	NOUN
dss-287	246	7	o	o	NOUN
dss-287	246	8	quality	quality	NOUN
dss-287	246	9	anti	anti	ADJ
dss-287	246	10	-	-	ADJ
dss-287	246	11	reflective	reflective	ADJ
dss-287	246	12	coatings	coating	NOUN
dss-287	246	13	improve	improve	VERB
dss-287	246	14	light	light	ADJ
dss-287	246	15	throughput	throughput	NOUN
dss-287	246	16	and	and	CCONJ
dss-287	246	17	reduce	reduce	VERB
dss-287	246	18	ghosting	ghosting	NOUN
dss-287	246	19	or	or	CCONJ
dss-287	246	20	flare	flare	NOUN
dss-287	246	21	.	.	PUNCT
dss-287	247	1	the	the	DET
dss-287	247	2	three	three	NUM
dss-287	247	3	main	main	ADJ
dss-287	247	4	types	type	NOUN
dss-287	247	5	of	of	ADP
dss-287	247	6	astronomical	astronomical	ADJ
dss-287	247	7	telescopes	telescope	NOUN
dss-287	247	8	mentioned	mention	VERB
dss-287	247	9	here	here	ADV
dss-287	247	10	refractors	refractor	NOUN
dss-287	247	11	,	,	PUNCT
dss-287	247	12	reflectors	reflector	NOUN
dss-287	247	13	,	,	PUNCT
dss-287	247	14	and	and	CCONJ
dss-287	247	15	catadioptric	catadioptric	NOUN
dss-287	247	16	systems	system	NOUN
dss-287	247	17	(	(	PUNCT
dss-287	247	18	fig	fig	NOUN
dss-287	247	19	.	.	NOUN
dss-287	248	1	1	1	NUM
dss-287	248	2	)	)	PUNCT
dss-287	248	3	each	each	PRON
dss-287	248	4	have	have	VERB
dss-287	248	5	distinct	distinct	ADJ
dss-287	248	6	optical	optical	ADJ
dss-287	248	7	designs	design	NOUN
dss-287	248	8	that	that	PRON
dss-287	248	9	influence	influence	VERB
dss-287	248	10	their	their	PRON
dss-287	248	11	image	image	NOUN
dss-287	248	12	quality	quality	NOUN
dss-287	248	13	based	base	VERB
dss-287	248	14	on	on	ADP
dss-287	248	15	the	the	DET
dss-287	248	16	criteria	criterion	NOUN
dss-287	248	17	outlined	outline	VERB
dss-287	248	18	above	above	ADV
dss-287	248	19	.	.	PUNCT
dss-287	249	1	fig	fig	NOUN
dss-287	249	2	.	.	PUNCT
dss-287	250	1	1	1	NUM
dss-287	250	2	scheme	scheme	NOUN
dss-287	250	3	of	of	ADP
dss-287	250	4	refracting	refracting	NOUN
dss-287	250	5	,	,	PUNCT
dss-287	250	6	reflecting	reflect	VERB
dss-287	250	7	and	and	CCONJ
dss-287	250	8	catadioptric	catadioptric	NOUN
dss-287	250	9	telescope	telescope	NOUN
dss-287	250	10	design	design	NOUN
dss-287	250	11	[	[	X
dss-287	250	12	154	154	NUM
dss-287	250	13	]	]	PUNCT
dss-287	250	14	dss	dss	NOUN
dss-287	250	15	vol	vol	NOUN
dss-287	250	16	.	.	PROPN
dss-287	251	1	6	6	NUM
dss-287	251	2	,	,	PUNCT
dss-287	251	3	no	no	INTJ
dss-287	251	4	.	.	NOUN
dss-287	251	5	1	1	NUM
dss-287	251	6	,	,	PUNCT
dss-287	251	7	2025	2025	NUM
dss-287	251	8	,	,	PUNCT
dss-287	251	9	pp.49	pp.49	NOUN
dss-287	251	10	-	-	SYM
dss-287	251	11	90	90	NUM
dss-287	251	12	57	57	NUM
dss-287	251	13	refractors	refractor	NOUN
dss-287	251	14	use	use	VERB
dss-287	251	15	lenses	lense	NOUN
dss-287	251	16	to	to	PART
dss-287	251	17	gather	gather	VERB
dss-287	251	18	and	and	CCONJ
dss-287	251	19	focus	focus	VERB
dss-287	251	20	light	light	NOUN
dss-287	251	21	,	,	PUNCT
dss-287	251	22	offering	offer	VERB
dss-287	251	23	high	high	ADJ
dss-287	251	24	contrast	contrast	NOUN
dss-287	251	25	and	and	CCONJ
dss-287	251	26	excellent	excellent	ADJ
dss-287	251	27	mechanical	mechanical	ADJ
dss-287	251	28	stability	stability	NOUN
dss-287	251	29	due	due	ADP
dss-287	251	30	to	to	ADP
dss-287	251	31	their	their	PRON
dss-287	251	32	sealed	seal	VERB
dss-287	251	33	tube	tube	NOUN
dss-287	251	34	design	design	NOUN
dss-287	251	35	.	.	PUNCT
dss-287	252	1	they	they	PRON
dss-287	252	2	generally	generally	ADV
dss-287	252	3	produce	produce	VERB
dss-287	252	4	sharp	sharp	ADJ
dss-287	252	5	,	,	PUNCT
dss-287	252	6	high	high	ADJ
dss-287	252	7	-	-	PUNCT
dss-287	252	8	resolution	resolution	NOUN
dss-287	252	9	images	image	NOUN
dss-287	252	10	with	with	ADP
dss-287	252	11	minimal	minimal	ADJ
dss-287	252	12	maintenance	maintenance	NOUN
dss-287	252	13	.	.	PUNCT
dss-287	253	1	however	however	ADV
dss-287	253	2	,	,	PUNCT
dss-287	253	3	they	they	PRON
dss-287	253	4	are	be	AUX
dss-287	253	5	prone	prone	ADJ
dss-287	253	6	to	to	ADP
dss-287	253	7	chromatic	chromatic	ADJ
dss-287	253	8	aberration	aberration	NOUN
dss-287	253	9	,	,	PUNCT
dss-287	253	10	where	where	SCONJ
dss-287	253	11	different	different	ADJ
dss-287	253	12	wavelengths	wavelength	NOUN
dss-287	253	13	focus	focus	VERB
dss-287	253	14	at	at	ADP
dss-287	253	15	slightly	slightly	ADV
dss-287	253	16	different	different	ADJ
dss-287	253	17	points	point	NOUN
dss-287	253	18	,	,	PUNCT
dss-287	253	19	resulting	result	VERB
dss-287	253	20	in	in	ADP
dss-287	253	21	color	color	NOUN
dss-287	253	22	fringing	fringing	NOUN
dss-287	253	23	unless	unless	SCONJ
dss-287	253	24	corrected	correct	VERB
dss-287	253	25	by	by	ADP
dss-287	253	26	achromatic	achromatic	ADJ
dss-287	253	27	or	or	CCONJ
dss-287	253	28	apochromatic	apochromatic	ADJ
dss-287	253	29	lens	lens	NOUN
dss-287	253	30	combinations	combination	NOUN
dss-287	253	31	.	.	PUNCT
dss-287	254	1	refractors	refractor	NOUN
dss-287	254	2	often	often	ADV
dss-287	254	3	have	have	VERB
dss-287	254	4	a	a	DET
dss-287	254	5	relatively	relatively	ADV
dss-287	254	6	narrow	narrow	ADJ
dss-287	254	7	field	field	NOUN
dss-287	254	8	of	of	ADP
dss-287	254	9	view	view	NOUN
dss-287	254	10	and	and	CCONJ
dss-287	254	11	can	can	AUX
dss-287	254	12	be	be	AUX
dss-287	254	13	expensive	expensive	ADJ
dss-287	254	14	at	at	ADP
dss-287	254	15	larger	large	ADJ
dss-287	254	16	apertures	aperture	NOUN
dss-287	254	17	due	due	ADP
dss-287	254	18	to	to	ADP
dss-287	254	19	the	the	DET
dss-287	254	20	complexity	complexity	NOUN
dss-287	254	21	and	and	CCONJ
dss-287	254	22	cost	cost	NOUN
dss-287	254	23	of	of	ADP
dss-287	254	24	high	high	ADJ
dss-287	254	25	-	-	PUNCT
dss-287	254	26	quality	quality	NOUN
dss-287	254	27	lens	lens	NOUN
dss-287	254	28	glass	glass	NOUN
dss-287	254	29	and	and	CCONJ
dss-287	254	30	coatings	coating	NOUN
dss-287	254	31	.	.	PUNCT
dss-287	255	1	reflectors	reflector	NOUN
dss-287	255	2	use	use	VERB
dss-287	255	3	mirrors	mirror	NOUN
dss-287	255	4	,	,	PUNCT
dss-287	255	5	eliminating	eliminate	VERB
dss-287	255	6	chromatic	chromatic	ADJ
dss-287	255	7	aberration	aberration	NOUN
dss-287	255	8	since	since	SCONJ
dss-287	255	9	reflection	reflection	NOUN
dss-287	255	10	is	be	AUX
dss-287	255	11	wavelength	wavelength	NOUN
dss-287	255	12	-	-	PUNCT
dss-287	255	13	independent	independent	NOUN
dss-287	255	14	.	.	PUNCT
dss-287	256	1	this	this	PRON
dss-287	256	2	allows	allow	VERB
dss-287	256	3	for	for	ADP
dss-287	256	4	larger	large	ADJ
dss-287	256	5	apertures	aperture	NOUN
dss-287	256	6	at	at	ADP
dss-287	256	7	lower	low	ADJ
dss-287	256	8	costs	cost	NOUN
dss-287	256	9	,	,	PUNCT
dss-287	256	10	resulting	result	VERB
dss-287	256	11	in	in	ADP
dss-287	256	12	superior	superior	ADJ
dss-287	256	13	resolution	resolution	NOUN
dss-287	256	14	and	and	CCONJ
dss-287	256	15	light	light	ADJ
dss-287	256	16	-	-	PUNCT
dss-287	256	17	gathering	gather	VERB
dss-287	256	18	power	power	NOUN
dss-287	256	19	,	,	PUNCT
dss-287	256	20	key	key	ADJ
dss-287	256	21	advantages	advantage	NOUN
dss-287	256	22	for	for	ADP
dss-287	256	23	deep	deep	ADJ
dss-287	256	24	-	-	PUNCT
dss-287	256	25	sky	sky	NOUN
dss-287	256	26	observation	observation	NOUN
dss-287	256	27	and	and	CCONJ
dss-287	256	28	astrophotography	astrophotography	NOUN
dss-287	256	29	.	.	PUNCT
dss-287	257	1	however	however	ADV
dss-287	257	2	,	,	PUNCT
dss-287	257	3	reflectors	reflector	NOUN
dss-287	257	4	can	can	AUX
dss-287	257	5	suffer	suffer	VERB
dss-287	257	6	from	from	ADP
dss-287	257	7	spherical	spherical	ADJ
dss-287	257	8	aberration	aberration	NOUN
dss-287	257	9	if	if	SCONJ
dss-287	257	10	mirrors	mirror	NOUN
dss-287	257	11	are	be	AUX
dss-287	257	12	not	not	PART
dss-287	257	13	precisely	precisely	ADV
dss-287	257	14	shaped	shape	VERB
dss-287	257	15	and	and	CCONJ
dss-287	257	16	aligned	align	VERB
dss-287	257	17	.	.	PUNCT
dss-287	258	1	they	they	PRON
dss-287	258	2	may	may	AUX
dss-287	258	3	also	also	ADV
dss-287	258	4	exhibit	exhibit	VERB
dss-287	258	5	coma	coma	NOUN
dss-287	258	6	and	and	CCONJ
dss-287	258	7	require	require	VERB
dss-287	258	8	regular	regular	ADJ
dss-287	258	9	collimation	collimation	NOUN
dss-287	258	10	to	to	PART
dss-287	258	11	maintain	maintain	VERB
dss-287	258	12	optical	optical	ADJ
dss-287	258	13	alignment	alignment	NOUN
dss-287	258	14	.	.	PUNCT
dss-287	259	1	reflectors	reflector	NOUN
dss-287	259	2	typically	typically	ADV
dss-287	259	3	have	have	VERB
dss-287	259	4	open	open	ADJ
dss-287	259	5	tubes	tube	NOUN
dss-287	259	6	,	,	PUNCT
dss-287	259	7	which	which	PRON
dss-287	259	8	can	can	AUX
dss-287	259	9	lead	lead	VERB
dss-287	259	10	to	to	ADP
dss-287	259	11	thermal	thermal	ADJ
dss-287	259	12	currents	current	NOUN
dss-287	259	13	affecting	affect	VERB
dss-287	259	14	image	image	NOUN
dss-287	259	15	stability	stability	NOUN
dss-287	259	16	.	.	PUNCT
dss-287	260	1	catadioptric	catadioptric	ADJ
dss-287	260	2	telescope	telescope	NOUN
dss-287	260	3	designs	design	NOUN
dss-287	260	4	combine	combine	VERB
dss-287	260	5	lenses	lense	NOUN
dss-287	260	6	and	and	CCONJ
dss-287	260	7	mirrors	mirror	NOUN
dss-287	260	8	to	to	PART
dss-287	260	9	capitalize	capitalize	VERB
dss-287	260	10	on	on	ADP
dss-287	260	11	the	the	DET
dss-287	260	12	benefits	benefit	NOUN
dss-287	260	13	of	of	ADP
dss-287	260	14	both	both	DET
dss-287	260	15	systems	system	NOUN
dss-287	260	16	while	while	SCONJ
dss-287	260	17	minimizing	minimize	VERB
dss-287	260	18	their	their	PRON
dss-287	260	19	weaknesses	weakness	NOUN
dss-287	260	20	.	.	PUNCT
dss-287	261	1	these	these	DET
dss-287	261	2	hybrid	hybrid	ADJ
dss-287	261	3	telescopes	telescope	NOUN
dss-287	261	4	offer	offer	VERB
dss-287	261	5	compact	compact	ADJ
dss-287	261	6	form	form	NOUN
dss-287	261	7	factors	factor	NOUN
dss-287	261	8	and	and	CCONJ
dss-287	261	9	improved	improved	ADJ
dss-287	261	10	correction	correction	NOUN
dss-287	261	11	of	of	ADP
dss-287	261	12	aberrations	aberration	NOUN
dss-287	261	13	,	,	PUNCT
dss-287	261	14	including	include	VERB
dss-287	261	15	reduced	reduce	VERB
dss-287	261	16	coma	coma	NOUN
dss-287	261	17	and	and	CCONJ
dss-287	261	18	spherical	spherical	ADJ
dss-287	261	19	aberration	aberration	NOUN
dss-287	261	20	.	.	PUNCT
dss-287	262	1	their	their	PRON
dss-287	262	2	optical	optical	ADJ
dss-287	262	3	coatings	coating	NOUN
dss-287	262	4	and	and	CCONJ
dss-287	262	5	design	design	NOUN
dss-287	262	6	often	often	ADV
dss-287	262	7	provide	provide	VERB
dss-287	262	8	good	good	ADJ
dss-287	262	9	contrast	contrast	NOUN
dss-287	262	10	and	and	CCONJ
dss-287	262	11	wide	wide	ADJ
dss-287	262	12	fields	field	NOUN
dss-287	262	13	of	of	ADP
dss-287	262	14	view	view	NOUN
dss-287	262	15	,	,	PUNCT
dss-287	262	16	making	make	VERB
dss-287	262	17	them	they	PRON
dss-287	262	18	versatile	versatile	ADJ
dss-287	262	19	for	for	ADP
dss-287	262	20	both	both	CCONJ
dss-287	262	21	planetary	planetary	ADJ
dss-287	262	22	and	and	CCONJ
dss-287	262	23	deep	deep	ADJ
dss-287	262	24	-	-	PUNCT
dss-287	262	25	sky	sky	NOUN
dss-287	262	26	imaging	imaging	NOUN
dss-287	262	27	.	.	PUNCT
dss-287	263	1	however	however	ADV
dss-287	263	2	,	,	PUNCT
dss-287	263	3	their	their	PRON
dss-287	263	4	complex	complex	ADJ
dss-287	263	5	optical	optical	ADJ
dss-287	263	6	path	path	NOUN
dss-287	263	7	can	can	AUX
dss-287	263	8	often	often	ADV
dss-287	263	9	lead	lead	VERB
dss-287	263	10	to	to	ADP
dss-287	263	11	some	some	DET
dss-287	263	12	light	light	ADJ
dss-287	263	13	loss	loss	NOUN
dss-287	263	14	and	and	CCONJ
dss-287	263	15	require	require	VERB
dss-287	263	16	more	more	ADV
dss-287	263	17	precise	precise	ADJ
dss-287	263	18	manufacturing	manufacturing	NOUN
dss-287	263	19	and	and	CCONJ
dss-287	263	20	alignment	alignment	NOUN
dss-287	263	21	.	.	PUNCT
dss-287	264	1	generally	generally	ADV
dss-287	264	2	,	,	PUNCT
dss-287	264	3	catadioptrics	catadioptric	NOUN
dss-287	264	4	often	often	ADV
dss-287	264	5	have	have	VERB
dss-287	264	6	moderate	moderate	ADJ
dss-287	264	7	focal	focal	ADJ
dss-287	264	8	ratios	ratio	NOUN
dss-287	264	9	,	,	PUNCT
dss-287	264	10	balancing	balance	VERB
dss-287	264	11	image	image	NOUN
dss-287	264	12	brightness	brightness	NOUN
dss-287	264	13	and	and	CCONJ
dss-287	264	14	field	field	NOUN
dss-287	264	15	of	of	ADP
dss-287	264	16	view	view	NOUN
dss-287	264	17	.	.	PUNCT
dss-287	265	1	telescopes	telescope	NOUN
dss-287	265	2	have	have	VERB
dss-287	265	3	three	three	NUM
dss-287	265	4	main	main	ADJ
dss-287	265	5	roles	role	NOUN
dss-287	265	6	[	[	X
dss-287	265	7	155	155	NUM
dss-287	265	8	]	]	NUM
dss-287	265	9	:	:	PUNCT
dss-287	265	10			X
dss-287	265	11	light	light	ADJ
dss-287	265	12	gathering	gathering	NOUN
dss-287	265	13	&	&	CCONJ
dss-287	265	14	compression	compression	NOUN
dss-287	265	15	:	:	PUNCT
dss-287	265	16	they	they	PRON
dss-287	265	17	collect	collect	VERB
dss-287	265	18	much	much	ADV
dss-287	265	19	more	more	ADJ
dss-287	265	20	light	light	NOUN
dss-287	265	21	than	than	ADP
dss-287	265	22	the	the	DET
dss-287	265	23	eye	eye	NOUN
dss-287	265	24	,	,	PUNCT
dss-287	265	25	making	make	VERB
dss-287	265	26	faint	faint	ADJ
dss-287	265	27	objects	object	NOUN
dss-287	265	28	visible	visible	ADJ
dss-287	265	29	.	.	PUNCT
dss-287	266	1	this	this	PRON
dss-287	266	2	gathered	gather	VERB
dss-287	266	3	light	light	NOUN
dss-287	266	4	is	be	AUX
dss-287	266	5	then	then	ADV
dss-287	266	6	focused	focus	VERB
dss-287	266	7	into	into	ADP
dss-287	266	8	a	a	DET
dss-287	266	9	smaller	small	ADJ
dss-287	266	10	beam	beam	NOUN
dss-287	266	11	that	that	PRON
dss-287	266	12	can	can	AUX
dss-287	266	13	enter	enter	VERB
dss-287	266	14	the	the	DET
dss-287	266	15	eye	eye	NOUN
dss-287	266	16	or	or	CCONJ
dss-287	266	17	fit	fit	VERB
dss-287	266	18	onto	onto	ADP
dss-287	266	19	a	a	DET
dss-287	266	20	sensor	sensor	NOUN
dss-287	266	21	.	.	PUNCT
dss-287	267	1			X
dss-287	267	2	angular	angular	ADJ
dss-287	267	3	resolution	resolution	NOUN
dss-287	267	4	&	&	CCONJ
dss-287	267	5	magnification	magnification	PROPN
dss-287	267	6	:	:	PUNCT
dss-287	267	7	telescopes	telescope	NOUN
dss-287	267	8	resolve	resolve	VERB
dss-287	267	9	fine	fine	ADJ
dss-287	267	10	details	detail	NOUN
dss-287	267	11	by	by	ADP
dss-287	267	12	having	have	VERB
dss-287	267	13	a	a	DET
dss-287	267	14	much	much	ADV
dss-287	267	15	wider	wide	ADJ
dss-287	267	16	"	"	PUNCT
dss-287	267	17	pupil	pupil	NOUN
dss-287	267	18	"	"	PUNCT
dss-287	267	19	than	than	ADP
dss-287	267	20	the	the	DET
dss-287	267	21	eye	eye	NOUN
dss-287	267	22	.	.	PUNCT
dss-287	268	1	they	they	PRON
dss-287	268	2	then	then	ADV
dss-287	268	3	magnify	magnify	VERB
dss-287	268	4	this	this	DET
dss-287	268	5	detailed	detailed	ADJ
dss-287	268	6	image	image	NOUN
dss-287	268	7	so	so	SCONJ
dss-287	268	8	the	the	DET
dss-287	268	9	eye	eye	NOUN
dss-287	268	10	can	can	AUX
dss-287	268	11	see	see	VERB
dss-287	268	12	it	it	PRON
dss-287	268	13	,	,	PUNCT
dss-287	268	14	while	while	SCONJ
dss-287	268	15	the	the	DET
dss-287	268	16	increased	increase	VERB
dss-287	268	17	light	light	ADJ
dss-287	268	18	grasp	grasp	NOUN
dss-287	268	19	keeps	keep	VERB
dss-287	268	20	the	the	DET
dss-287	268	21	image	image	NOUN
dss-287	268	22	bright	bright	ADJ
dss-287	268	23	enough	enough	ADV
dss-287	268	24	.	.	PUNCT
dss-287	269	1			PRON
dss-287	269	2	pointing	pointing	NOUN
dss-287	269	3	&	&	CCONJ
dss-287	269	4	tracking	tracking	NOUN
dss-287	269	5	:	:	PUNCT
dss-287	269	6	telescopes	telescope	NOUN
dss-287	269	7	can	can	AUX
dss-287	269	8	be	be	AUX
dss-287	269	9	aimed	aim	VERB
dss-287	269	10	at	at	ADP
dss-287	269	11	any	any	DET
dss-287	269	12	point	point	NOUN
dss-287	269	13	in	in	ADP
dss-287	269	14	the	the	DET
dss-287	269	15	sky	sky	NOUN
dss-287	269	16	and	and	CCONJ
dss-287	269	17	can	can	AUX
dss-287	269	18	follow	follow	VERB
dss-287	269	19	celestial	celestial	ADJ
dss-287	269	20	objects	object	NOUN
dss-287	269	21	as	as	ADP
dss-287	269	22	the	the	DET
dss-287	269	23	earth	earth	NOUN
dss-287	269	24	rotates	rotate	NOUN
dss-287	269	25	,	,	PUNCT
dss-287	269	26	often	often	ADV
dss-287	269	27	using	use	VERB
dss-287	269	28	motorized	motorize	VERB
dss-287	269	29	mounts	mount	NOUN
dss-287	269	30	with	with	ADP
dss-287	269	31	computer	computer	NOUN
dss-287	269	32	control	control	NOUN
dss-287	269	33	.	.	PUNCT
dss-287	270	1	important	important	ADJ
dss-287	270	2	optical	optical	ADJ
dss-287	270	3	characteristics	characteristic	NOUN
dss-287	270	4	of	of	ADP
dss-287	270	5	telescopes	telescope	NOUN
dss-287	270	6	are	be	AUX
dss-287	270	7	[	[	X
dss-287	270	8	155	155	NUM
dss-287	270	9	]	]	SYM
dss-287	270	10	:	:	PUNCT
dss-287	270	11	1	1	X
dss-287	270	12	.	.	X
dss-287	270	13	aperture	aperture	ADV
dss-287	270	14	:	:	PUNCT
dss-287	270	15	determines	determine	VERB
dss-287	270	16	light	light	ADJ
dss-287	270	17	-	-	PUNCT
dss-287	270	18	gathering	gather	VERB
dss-287	270	19	ability	ability	NOUN
dss-287	270	20	(	(	PUNCT
dss-287	270	21	fainter	fainter	VERB
dss-287	270	22	objects	object	VERB
dss-287	270	23	visible	visible	ADJ
dss-287	270	24	)	)	PUNCT
dss-287	270	25	,	,	PUNCT
dss-287	270	26	image	image	NOUN
dss-287	270	27	resolution	resolution	NOUN
dss-287	270	28	(	(	PUNCT
dss-287	270	29	finer	fine	ADJ
dss-287	270	30	detail	detail	NOUN
dss-287	270	31	)	)	PUNCT
dss-287	270	32	,	,	PUNCT
dss-287	270	33	the	the	DET
dss-287	270	34	impact	impact	NOUN
dss-287	270	35	of	of	ADP
dss-287	270	36	atmospheric	atmospheric	ADJ
dss-287	270	37	turbulence	turbulence	NOUN
dss-287	270	38	(	(	PUNCT
dss-287	270	39	"	"	PUNCT
dss-287	270	40	aperture	aperture	ADV
dss-287	270	41	seeing	see	VERB
dss-287	270	42	"	"	PUNCT
dss-287	270	43	)	)	PUNCT
dss-287	270	44	,	,	PUNCT
dss-287	270	45	and	and	CCONJ
dss-287	270	46	partly	partly	ADV
dss-287	270	47	the	the	DET
dss-287	270	48	telescope	telescope	NOUN
dss-287	270	49	's	's	PART
dss-287	270	50	weight	weight	NOUN
dss-287	270	51	and	and	CCONJ
dss-287	270	52	size	size	NOUN
dss-287	270	53	.	.	PUNCT
dss-287	271	1	2	2	X
dss-287	271	2	.	.	NOUN
dss-287	271	3	focal	focal	ADJ
dss-287	271	4	length	length	NOUN
dss-287	271	5	:	:	PUNCT
dss-287	271	6	primarily	primarily	ADV
dss-287	271	7	dictates	dictate	VERB
dss-287	271	8	the	the	DET
dss-287	271	9	telescope	telescope	NOUN
dss-287	271	10	's	's	PART
dss-287	271	11	magnification	magnification	NOUN
dss-287	271	12	.	.	PUNCT
dss-287	272	1	longer	long	ADJ
dss-287	272	2	focal	focal	ADJ
dss-287	272	3	lengths	length	NOUN
dss-287	272	4	yield	yield	VERB
dss-287	272	5	higher	high	ADJ
dss-287	272	6	base	base	NOUN
dss-287	272	7	magnification	magnification	NOUN
dss-287	272	8	.	.	PUNCT
dss-287	273	1	in	in	ADP
dss-287	273	2	visual	visual	ADJ
dss-287	273	3	use	use	NOUN
dss-287	273	4	,	,	PUNCT
dss-287	273	5	it	it	PRON
dss-287	273	6	sets	set	VERB
dss-287	273	7	the	the	DET
dss-287	273	8	magnification	magnification	NOUN
dss-287	273	9	range	range	NOUN
dss-287	273	10	achievable	achievable	ADJ
dss-287	273	11	with	with	ADP
dss-287	273	12	different	different	ADJ
dss-287	273	13	eyepieces	eyepiece	NOUN
dss-287	273	14	.	.	PUNCT
dss-287	274	1	it	it	PRON
dss-287	274	2	also	also	ADV
dss-287	274	3	influences	influence	VERB
dss-287	274	4	the	the	DET
dss-287	274	5	telescope	telescope	NOUN
dss-287	274	6	's	's	PART
dss-287	274	7	physical	physical	ADJ
dss-287	274	8	length	length	NOUN
dss-287	274	9	.	.	PUNCT
dss-287	275	1	3	3	X
dss-287	275	2	.	.	NOUN
dss-287	275	3	focal	focal	ADJ
dss-287	275	4	ratio	ratio	NOUN
dss-287	275	5	(	(	PUNCT
dss-287	275	6	relative	relative	ADJ
dss-287	275	7	aperture	aperture	NOUN
dss-287	275	8	):	):	PUNCT
dss-287	275	9	affects	affect	VERB
dss-287	275	10	image	image	NOUN
dss-287	275	11	brightness	brightness	NOUN
dss-287	275	12	;	;	PUNCT
dss-287	275	13	faster	fast	ADV
dss-287	275	14	(	(	PUNCT
dss-287	275	15	lower	low	ADJ
dss-287	275	16	number	number	NOUN
dss-287	275	17	)	)	PUNCT
dss-287	275	18	ratios	ratio	NOUN
dss-287	275	19	concentrate	concentrate	VERB
dss-287	275	20	more	more	ADV
dss-287	275	21	light	light	NOUN
dss-287	275	22	per	per	ADP
dss-287	275	23	area	area	NOUN
dss-287	275	24	.	.	PUNCT
dss-287	276	1	it	it	PRON
dss-287	276	2	also	also	ADV
dss-287	276	3	determines	determine	VERB
dss-287	276	4	the	the	DET
dss-287	276	5	image	image	NOUN
dss-287	276	6	scale	scale	NOUN
dss-287	276	7	for	for	ADP
dss-287	276	8	astrophotography	astrophotography	NOUN
dss-287	276	9	.	.	PUNCT
dss-287	277	1	3.2	3.2	NUM
dss-287	277	2	spot	spot	NOUN
dss-287	277	3	diagrams	diagram	NOUN
dss-287	277	4	spot	spot	NOUN
dss-287	277	5	diagrams	diagram	NOUN
dss-287	277	6	are	be	AUX
dss-287	277	7	one	one	NUM
dss-287	277	8	of	of	ADP
dss-287	277	9	the	the	DET
dss-287	277	10	fundamental	fundamental	ADJ
dss-287	277	11	analytical	analytical	ADJ
dss-287	277	12	tools	tool	NOUN
dss-287	277	13	used	use	VERB
dss-287	277	14	in	in	ADP
dss-287	277	15	optical	optical	ADJ
dss-287	277	16	design	design	NOUN
dss-287	277	17	.	.	PUNCT
dss-287	278	1	they	they	PRON
dss-287	278	2	are	be	AUX
dss-287	278	3	used	use	VERB
dss-287	278	4	to	to	PART
dss-287	278	5	simulate	simulate	VERB
dss-287	278	6	and	and	CCONJ
dss-287	278	7	visualize	visualize	VERB
dss-287	278	8	the	the	DET
dss-287	278	9	distribution	distribution	NOUN
dss-287	278	10	of	of	ADP
dss-287	278	11	light	light	NOUN
dss-287	278	12	from	from	ADP
dss-287	278	13	a	a	DET
dss-287	278	14	point	point	NOUN
dss-287	278	15	source	source	NOUN
dss-287	278	16	as	as	SCONJ
dss-287	278	17	it	it	PRON
dss-287	278	18	appears	appear	VERB
dss-287	278	19	on	on	ADP
dss-287	278	20	the	the	DET
dss-287	278	21	telescope	telescope	NOUN
dss-287	278	22	’s	’s	PART
dss-287	278	23	focal	focal	ADJ
dss-287	278	24	plane	plane	NOUN
dss-287	278	25	.	.	PUNCT
dss-287	279	1	by	by	ADP
dss-287	279	2	plotting	plot	VERB
dss-287	279	3	the	the	DET
dss-287	279	4	positions	position	NOUN
dss-287	279	5	where	where	SCONJ
dss-287	279	6	rays	ray	NOUN
dss-287	279	7	of	of	ADP
dss-287	279	8	light	light	NOUN
dss-287	279	9	converge	converge	NOUN
dss-287	279	10	,	,	PUNCT
dss-287	279	11	spot	spot	NOUN
dss-287	279	12	diagrams	diagram	NOUN
dss-287	279	13	effectively	effectively	ADV
dss-287	279	14	illustrate	illustrate	VERB
dss-287	279	15	the	the	DET
dss-287	279	16	size	size	NOUN
dss-287	279	17	,	,	PUNCT
dss-287	279	18	shape	shape	NOUN
dss-287	279	19	,	,	PUNCT
dss-287	279	20	and	and	CCONJ
dss-287	279	21	intensity	intensity	NOUN
dss-287	279	22	pattern	pattern	NOUN
dss-287	279	23	of	of	ADP
dss-287	279	24	the	the	DET
dss-287	279	25	resulting	result	VERB
dss-287	279	26	image	image	NOUN
dss-287	279	27	.	.	PUNCT
dss-287	280	1	these	these	DET
dss-287	280	2	diagrams	diagram	NOUN
dss-287	280	3	can	can	AUX
dss-287	280	4	provide	provide	VERB
dss-287	280	5	a	a	DET
dss-287	280	6	clear	clear	ADJ
dss-287	280	7	graphical	graphical	ADJ
dss-287	280	8	representation	representation	NOUN
dss-287	280	9	of	of	ADP
dss-287	280	10	the	the	DET
dss-287	280	11	impact	impact	NOUN
dss-287	280	12	of	of	ADP
dss-287	280	13	various	various	ADJ
dss-287	280	14	optical	optical	ADJ
dss-287	280	15	aberrations	aberration	NOUN
dss-287	280	16	,	,	PUNCT
dss-287	280	17	such	such	ADJ
dss-287	280	18	as	as	ADP
dss-287	280	19	spherical	spherical	ADJ
dss-287	280	20	aberration	aberration	NOUN
dss-287	280	21	,	,	PUNCT
dss-287	280	22	coma	coma	NOUN
dss-287	280	23	,	,	PUNCT
dss-287	280	24	and	and	CCONJ
dss-287	280	25	astigmatism	astigmatism	NOUN
dss-287	280	26	,	,	PUNCT
dss-287	280	27	on	on	ADP
dss-287	280	28	image	image	NOUN
dss-287	280	29	quality	quality	NOUN
dss-287	280	30	.	.	PUNCT
dss-287	281	1	by	by	ADP
dss-287	281	2	examining	examine	VERB
dss-287	281	3	spot	spot	NOUN
dss-287	281	4	diagrams	diagram	NOUN
dss-287	281	5	,	,	PUNCT
dss-287	281	6	optical	optical	ADJ
dss-287	281	7	designers	designer	NOUN
dss-287	281	8	can	can	AUX
dss-287	281	9	assess	assess	VERB
dss-287	281	10	the	the	DET
dss-287	281	11	degree	degree	NOUN
dss-287	281	12	to	to	PART
dss-287	281	13	which	which	PRON
dss-287	281	14	aberrations	aberration	NOUN
dss-287	281	15	distort	distort	VERB
dss-287	281	16	the	the	DET
dss-287	281	17	ideal	ideal	ADJ
dss-287	281	18	point	point	NOUN
dss-287	281	19	image	image	NOUN
dss-287	281	20	,	,	PUNCT
dss-287	281	21	evaluate	evaluate	VERB
dss-287	281	22	the	the	DET
dss-287	281	23	effectiveness	effectiveness	NOUN
dss-287	281	24	of	of	ADP
dss-287	281	25	corrective	corrective	ADJ
dss-287	281	26	measures	measure	NOUN
dss-287	281	27	,	,	PUNCT
dss-287	281	28	and	and	CCONJ
dss-287	281	29	optimize	optimize	VERB
dss-287	281	30	lens	lens	NOUN
dss-287	281	31	or	or	CCONJ
dss-287	281	32	mirror	mirror	NOUN
dss-287	281	33	configurations	configuration	NOUN
dss-287	281	34	to	to	PART
dss-287	281	35	achieve	achieve	VERB
dss-287	281	36	sharper	sharp	ADJ
dss-287	281	37	,	,	PUNCT
dss-287	281	38	more	more	ADV
dss-287	281	39	accurate	accurate	ADJ
dss-287	281	40	images	image	NOUN
dss-287	281	41	.	.	PUNCT
dss-287	282	1	in	in	ADP
dss-287	282	2	this	this	DET
dss-287	282	3	way	way	NOUN
dss-287	282	4	,	,	PUNCT
dss-287	282	5	spot	spot	NOUN
dss-287	282	6	diagrams	diagram	NOUN
dss-287	282	7	serve	serve	VERB
dss-287	282	8	as	as	ADP
dss-287	282	9	a	a	DET
dss-287	282	10	critical	critical	ADJ
dss-287	282	11	diagnostic	diagnostic	ADJ
dss-287	282	12	tool	tool	NOUN
dss-287	282	13	in	in	ADP
dss-287	282	14	the	the	DET
dss-287	282	15	iterative	iterative	NOUN
dss-287	282	16	process	process	NOUN
dss-287	282	17	of	of	ADP
dss-287	282	18	refining	refining	NOUN
dss-287	282	19	telescope	telescope	NOUN
dss-287	282	20	optics	optic	NOUN
dss-287	282	21	to	to	PART
dss-287	282	22	meet	meet	VERB
dss-287	282	23	desired	desire	VERB
dss-287	282	24	performance	performance	NOUN
dss-287	282	25	standards	standard	NOUN
dss-287	282	26	.	.	PUNCT
dss-287	283	1	for	for	ADP
dss-287	283	2	visual	visual	ADJ
dss-287	283	3	observation	observation	NOUN
dss-287	283	4	,	,	PUNCT
dss-287	283	5	especially	especially	ADV
dss-287	283	6	at	at	ADP
dss-287	283	7	high	high	ADJ
dss-287	283	8	magnifications	magnification	NOUN
dss-287	283	9	,	,	PUNCT
dss-287	283	10	the	the	DET
dss-287	283	11	spread	spread	NOUN
dss-287	283	12	of	of	ADP
dss-287	283	13	spots	spot	NOUN
dss-287	283	14	in	in	ADP
dss-287	283	15	the	the	DET
dss-287	283	16	focal	focal	ADJ
dss-287	283	17	plane	plane	NOUN
dss-287	283	18	should	should	AUX
dss-287	283	19	be	be	AUX
dss-287	283	20	minimal	minimal	ADJ
dss-287	283	21	.	.	PUNCT
dss-287	284	1	typically	typically	ADV
dss-287	284	2	,	,	PUNCT
dss-287	284	3	90	90	NUM
dss-287	284	4	to	to	PART
dss-287	284	5	95	95	NUM
dss-287	284	6	%	%	NOUN
dss-287	284	7	of	of	ADP
dss-287	284	8	the	the	DET
dss-287	284	9	rays	ray	NOUN
dss-287	284	10	should	should	AUX
dss-287	284	11	be	be	AUX
dss-287	284	12	concentrated	concentrate	VERB
dss-287	284	13	within	within	ADP
dss-287	284	14	a	a	DET
dss-287	284	15	circle	circle	NOUN
dss-287	284	16	no	no	ADV
dss-287	284	17	larger	large	ADJ
dss-287	284	18	than	than	ADP
dss-287	284	19	the	the	DET
dss-287	284	20	airy	airy	ADJ
dss-287	284	21	disk	disk	NOUN
dss-287	284	22	.	.	PUNCT
dss-287	285	1	an	an	DET
dss-287	285	2	airy	airy	ADJ
dss-287	285	3	disk	disk	NOUN
dss-287	285	4	is	be	AUX
dss-287	285	5	the	the	DET
dss-287	285	6	central	central	ADJ
dss-287	285	7	bright	bright	ADJ
dss-287	285	8	spot	spot	NOUN
dss-287	285	9	in	in	ADP
dss-287	285	10	the	the	DET
dss-287	285	11	diffraction	diffraction	NOUN
dss-287	285	12	pattern	pattern	NOUN
dss-287	285	13	formed	form	VERB
dss-287	285	14	when	when	SCONJ
dss-287	285	15	light	light	NOUN
dss-287	285	16	passes	pass	VERB
dss-287	285	17	through	through	ADP
dss-287	285	18	a	a	DET
dss-287	285	19	circular	circular	ADJ
dss-287	285	20	aperture	aperture	NOUN
dss-287	285	21	,	,	PUNCT
dss-287	285	22	like	like	ADP
dss-287	285	23	a	a	DET
dss-287	285	24	telescope	telescope	NOUN
dss-287	285	25	lens	len	NOUN
dss-287	285	26	.	.	PUNCT
dss-287	286	1	it	it	PRON
dss-287	286	2	represents	represent	VERB
dss-287	286	3	the	the	DET
dss-287	286	4	smallest	small	ADJ
dss-287	286	5	point	point	NOUN
dss-287	286	6	to	to	ADP
dss-287	286	7	which	which	PRON
dss-287	286	8	a	a	DET
dss-287	286	9	perfect	perfect	ADJ
dss-287	286	10	optical	optical	ADJ
dss-287	286	11	system	system	NOUN
dss-287	286	12	can	can	AUX
dss-287	286	13	focus	focus	VERB
dss-287	286	14	dss	dss	NOUN
dss-287	286	15	vol	vol	NOUN
dss-287	286	16	.	.	PROPN
dss-287	287	1	6	6	NUM
dss-287	287	2	,	,	PUNCT
dss-287	287	3	no	no	INTJ
dss-287	287	4	.	.	NOUN
dss-287	287	5	1	1	NUM
dss-287	287	6	,	,	PUNCT
dss-287	287	7	2025	2025	NUM
dss-287	287	8	,	,	PUNCT
dss-287	287	9	pp.49	pp.49	NOUN
dss-287	287	10	-	-	SYM
dss-287	287	11	90	90	NUM
dss-287	287	12	58	58	NUM
dss-287	287	13	light	light	NOUN
dss-287	287	14	,	,	PUNCT
dss-287	287	15	setting	set	VERB
dss-287	287	16	the	the	DET
dss-287	287	17	limit	limit	NOUN
dss-287	287	18	of	of	ADP
dss-287	287	19	resolution	resolution	NOUN
dss-287	287	20	due	due	ADP
dss-287	287	21	to	to	ADP
dss-287	287	22	diffraction	diffraction	NOUN
dss-287	287	23	.	.	PUNCT
dss-287	288	1	the	the	DET
dss-287	288	2	airy	airy	ADJ
dss-287	288	3	disk	disk	NOUN
dss-287	288	4	's	's	PART
dss-287	288	5	diameter	diameter	NOUN
dss-287	288	6	depends	depend	VERB
dss-287	288	7	on	on	ADP
dss-287	288	8	the	the	DET
dss-287	288	9	focal	focal	ADJ
dss-287	288	10	ratio	ratio	NOUN
dss-287	288	11	of	of	ADP
dss-287	288	12	the	the	DET
dss-287	288	13	objective	objective	NOUN
dss-287	288	14	and	and	CCONJ
dss-287	288	15	the	the	DET
dss-287	288	16	wavelength	wavelength	NOUN
dss-287	288	17	of	of	ADP
dss-287	288	18	light	light	NOUN
dss-287	288	19	.	.	PUNCT
dss-287	289	1	for	for	ADP
dss-287	289	2	astrophotography	astrophotography	NOUN
dss-287	289	3	,	,	PUNCT
dss-287	289	4	the	the	DET
dss-287	289	5	image	image	NOUN
dss-287	289	6	quality	quality	NOUN
dss-287	289	7	is	be	AUX
dss-287	289	8	traditionally	traditionally	ADV
dss-287	289	9	determined	determine	VERB
dss-287	289	10	by	by	ADP
dss-287	289	11	the	the	DET
dss-287	289	12	resolving	resolve	VERB
dss-287	289	13	power	power	NOUN
dss-287	289	14	of	of	ADP
dss-287	289	15	the	the	DET
dss-287	289	16	photographic	photographic	ADJ
dss-287	289	17	emulsion	emulsion	NOUN
dss-287	289	18	.	.	PUNCT
dss-287	290	1	research	research	NOUN
dss-287	290	2	indicates	indicate	VERB
dss-287	290	3	that	that	SCONJ
dss-287	290	4	the	the	DET
dss-287	290	5	smallest	small	ADJ
dss-287	290	6	star	star	NOUN
dss-287	290	7	images	image	NOUN
dss-287	290	8	on	on	ADP
dss-287	290	9	professional	professional	ADJ
dss-287	290	10	astrophotographic	astrophotographic	ADJ
dss-287	290	11	plates	plate	NOUN
dss-287	290	12	have	have	VERB
dss-287	290	13	diameters	diameter	NOUN
dss-287	290	14	no	no	ADV
dss-287	290	15	smaller	small	ADJ
dss-287	290	16	than	than	ADP
dss-287	290	17	0.025	0.025	NUM
dss-287	290	18	mm	mm	NOUN
dss-287	291	1	[	[	X
dss-287	291	2	3	3	NUM
dss-287	291	3	]	]	PUNCT
dss-287	291	4	.	.	PUNCT
dss-287	292	1	4	4	X
dss-287	292	2	.	.	X
dss-287	292	3	refracting	refracting	NOUN
dss-287	292	4	(	(	PUNCT
dss-287	292	5	dioptric	dioptric	ADJ
dss-287	292	6	)	)	PUNCT
dss-287	292	7	telescopes	telescope	NOUN
dss-287	292	8	refractor	refractor	NOUN
dss-287	292	9	telescopes	telescope	NOUN
dss-287	292	10	(	(	PUNCT
dss-287	292	11	fig	fig	NOUN
dss-287	292	12	.	.	NOUN
dss-287	292	13	1	1	NUM
dss-287	292	14	)	)	PUNCT
dss-287	292	15	,	,	PUNCT
dss-287	292	16	among	among	ADP
dss-287	292	17	the	the	DET
dss-287	292	18	earliest	early	ADJ
dss-287	292	19	optical	optical	ADJ
dss-287	292	20	instruments	instrument	NOUN
dss-287	292	21	designed	design	VERB
dss-287	292	22	for	for	ADP
dss-287	292	23	astronomical	astronomical	ADJ
dss-287	292	24	observation	observation	NOUN
dss-287	292	25	,	,	PUNCT
dss-287	292	26	utilize	utilize	VERB
dss-287	292	27	lenses	lense	NOUN
dss-287	292	28	to	to	PART
dss-287	292	29	gather	gather	VERB
dss-287	292	30	and	and	CCONJ
dss-287	292	31	focus	focus	VERB
dss-287	292	32	light	light	NOUN
dss-287	292	33	,	,	PUNCT
dss-287	292	34	producing	produce	VERB
dss-287	292	35	magnified	magnify	VERB
dss-287	292	36	images	image	NOUN
dss-287	292	37	of	of	ADP
dss-287	292	38	distant	distant	ADJ
dss-287	292	39	objects	object	NOUN
dss-287	292	40	.	.	PUNCT
dss-287	293	1	invented	invent	VERB
dss-287	293	2	in	in	ADP
dss-287	293	3	the	the	DET
dss-287	293	4	early	early	ADJ
dss-287	293	5	17th	17th	ADJ
dss-287	293	6	century	century	NOUN
dss-287	293	7	,	,	PUNCT
dss-287	293	8	these	these	DET
dss-287	293	9	telescopes	telescope	NOUN
dss-287	293	10	have	have	AUX
dss-287	293	11	evolved	evolve	VERB
dss-287	293	12	significantly	significantly	ADV
dss-287	293	13	,	,	PUNCT
dss-287	293	14	finding	find	VERB
dss-287	293	15	applications	application	NOUN
dss-287	293	16	in	in	ADP
dss-287	293	17	astronomy	astronomy	NOUN
dss-287	293	18	,	,	PUNCT
dss-287	293	19	terrestrial	terrestrial	ADJ
dss-287	293	20	observation	observation	NOUN
dss-287	293	21	,	,	PUNCT
dss-287	293	22	and	and	CCONJ
dss-287	293	23	optical	optical	ADJ
dss-287	293	24	research	research	NOUN
dss-287	293	25	.	.	PUNCT
dss-287	294	1	the	the	DET
dss-287	294	2	fundamental	fundamental	ADJ
dss-287	294	3	principle	principle	NOUN
dss-287	294	4	of	of	ADP
dss-287	294	5	a	a	DET
dss-287	294	6	refractor	refractor	NOUN
dss-287	294	7	telescope	telescope	NOUN
dss-287	294	8	involves	involve	VERB
dss-287	294	9	the	the	DET
dss-287	294	10	refraction	refraction	NOUN
dss-287	294	11	of	of	ADP
dss-287	294	12	light	light	NOUN
dss-287	294	13	through	through	ADP
dss-287	294	14	a	a	DET
dss-287	294	15	convex	convex	ADJ
dss-287	294	16	objective	objective	ADJ
dss-287	294	17	lens	lens	NOUN
dss-287	294	18	to	to	PART
dss-287	294	19	form	form	VERB
dss-287	294	20	a	a	DET
dss-287	294	21	real	real	ADJ
dss-287	294	22	image	image	NOUN
dss-287	294	23	,	,	PUNCT
dss-287	294	24	which	which	PRON
dss-287	294	25	is	be	AUX
dss-287	294	26	then	then	ADV
dss-287	294	27	magnified	magnify	VERB
dss-287	294	28	by	by	ADP
dss-287	294	29	an	an	DET
dss-287	294	30	eyepiece	eyepiece	NOUN
dss-287	294	31	.	.	PUNCT
dss-287	295	1	the	the	DET
dss-287	295	2	history	history	NOUN
dss-287	295	3	of	of	ADP
dss-287	295	4	refractor	refractor	NOUN
dss-287	295	5	telescopes	telescope	NOUN
dss-287	295	6	begins	begin	VERB
dss-287	295	7	with	with	ADP
dss-287	295	8	hans	hans	PROPN
dss-287	295	9	lippershey	lippershey	PROPN
dss-287	295	10	,	,	PUNCT
dss-287	295	11	who	who	PRON
dss-287	295	12	patented	patent	VERB
dss-287	295	13	the	the	DET
dss-287	295	14	first	first	ADJ
dss-287	295	15	refracting	refracting	NOUN
dss-287	295	16	telescope	telescope	NOUN
dss-287	295	17	in	in	ADP
dss-287	295	18	1608	1608	NUM
dss-287	295	19	,	,	PUNCT
dss-287	295	20	though	though	SCONJ
dss-287	295	21	galileo	galileo	NOUN
dss-287	295	22	galilei	galilei	NOUN
dss-287	295	23	popularized	popularize	VERB
dss-287	295	24	its	its	PRON
dss-287	295	25	use	use	NOUN
dss-287	295	26	in	in	ADP
dss-287	295	27	astronomy	astronomy	NOUN
dss-287	295	28	shortly	shortly	ADV
dss-287	295	29	thereafter	thereafter	ADV
dss-287	295	30	with	with	ADP
dss-287	295	31	his	his	PRON
dss-287	295	32	improved	improved	ADJ
dss-287	295	33	designs	design	NOUN
dss-287	295	34	[	[	X
dss-287	295	35	44	44	NUM
dss-287	295	36	]	]	PUNCT
dss-287	295	37	.	.	PUNCT
dss-287	296	1	early	early	ADJ
dss-287	296	2	refractors	refractor	NOUN
dss-287	296	3	suffered	suffer	VERB
dss-287	296	4	from	from	ADP
dss-287	296	5	chromatic	chromatic	ADJ
dss-287	296	6	aberration	aberration	NOUN
dss-287	296	7	,	,	PUNCT
dss-287	296	8	a	a	DET
dss-287	296	9	distortion	distortion	NOUN
dss-287	296	10	caused	cause	VERB
dss-287	296	11	by	by	ADP
dss-287	296	12	the	the	DET
dss-287	296	13	varying	vary	VERB
dss-287	296	14	refraction	refraction	NOUN
dss-287	296	15	of	of	ADP
dss-287	296	16	different	different	ADJ
dss-287	296	17	wavelengths	wavelength	NOUN
dss-287	296	18	of	of	ADP
dss-287	296	19	light	light	NOUN
dss-287	296	20	,	,	PUNCT
dss-287	296	21	resulting	result	VERB
dss-287	296	22	in	in	ADP
dss-287	296	23	colored	colored	ADJ
dss-287	296	24	fringes	fringe	NOUN
dss-287	296	25	around	around	ADP
dss-287	296	26	observed	observed	ADJ
dss-287	296	27	objects	object	NOUN
dss-287	296	28	[	[	X
dss-287	296	29	45	45	NUM
dss-287	296	30	]	]	PUNCT
dss-287	296	31	.	.	PUNCT
dss-287	297	1	sir	sir	PROPN
dss-287	297	2	isaac	isaac	PROPN
dss-287	297	3	newton	newton	PROPN
dss-287	297	4	’s	’s	PART
dss-287	297	5	work	work	NOUN
dss-287	297	6	on	on	ADP
dss-287	297	7	optics	optic	NOUN
dss-287	297	8	in	in	ADP
dss-287	297	9	the	the	DET
dss-287	297	10	late	late	ADJ
dss-287	297	11	17th	17th	ADJ
dss-287	297	12	century	century	NOUN
dss-287	297	13	highlighted	highlight	VERB
dss-287	297	14	these	these	DET
dss-287	297	15	limitations	limitation	NOUN
dss-287	297	16	,	,	PUNCT
dss-287	297	17	prompting	prompt	VERB
dss-287	297	18	the	the	DET
dss-287	297	19	development	development	NOUN
dss-287	297	20	of	of	ADP
dss-287	297	21	achromatic	achromatic	ADJ
dss-287	297	22	lenses	lense	NOUN
dss-287	297	23	by	by	ADP
dss-287	297	24	chester	chester	PROPN
dss-287	297	25	moore	moore	PROPN
dss-287	297	26	hall	hall	PROPN
dss-287	297	27	and	and	CCONJ
dss-287	297	28	john	john	PROPN
dss-287	297	29	dolland	dolland	PROPN
dss-287	297	30	in	in	ADP
dss-287	297	31	the	the	DET
dss-287	297	32	18th	18th	ADJ
dss-287	297	33	century	century	NOUN
dss-287	297	34	[	[	X
dss-287	297	35	46	46	NUM
dss-287	297	36	]	]	PUNCT
dss-287	297	37	.	.	PUNCT
dss-287	298	1	these	these	DET
dss-287	298	2	lenses	lense	NOUN
dss-287	298	3	,	,	PUNCT
dss-287	298	4	combining	combine	VERB
dss-287	298	5	crown	crown	NOUN
dss-287	298	6	and	and	CCONJ
dss-287	298	7	flint	flint	NOUN
dss-287	298	8	glass	glass	NOUN
dss-287	298	9	,	,	PUNCT
dss-287	298	10	significantly	significantly	ADV
dss-287	298	11	reduced	reduce	VERB
dss-287	298	12	chromatic	chromatic	ADJ
dss-287	298	13	aberration	aberration	NOUN
dss-287	298	14	,	,	PUNCT
dss-287	298	15	enhancing	enhance	VERB
dss-287	298	16	image	image	NOUN
dss-287	298	17	clarity	clarity	NOUN
dss-287	298	18	[	[	X
dss-287	298	19	47	47	NUM
dss-287	298	20	]	]	PUNCT
dss-287	298	21	.	.	PUNCT
dss-287	299	1	in	in	ADP
dss-287	299	2	the	the	DET
dss-287	299	3	19th	19th	ADJ
dss-287	299	4	century	century	NOUN
dss-287	299	5	,	,	PUNCT
dss-287	299	6	advancements	advancement	NOUN
dss-287	299	7	in	in	ADP
dss-287	299	8	glass	glass	NOUN
dss-287	299	9	manufacturing	manufacturing	NOUN
dss-287	299	10	and	and	CCONJ
dss-287	299	11	lens	lens	NOUN
dss-287	299	12	grinding	grind	VERB
dss-287	299	13	,	,	PUNCT
dss-287	299	14	as	as	SCONJ
dss-287	299	15	documented	document	VERB
dss-287	299	16	by	by	ADP
dss-287	299	17	joseph	joseph	PROPN
dss-287	299	18	fraunhofer	fraunhofer	PROPN
dss-287	299	19	,	,	PUNCT
dss-287	299	20	allowed	allow	VERB
dss-287	299	21	for	for	ADP
dss-287	299	22	larger	large	ADJ
dss-287	299	23	objective	objective	ADJ
dss-287	299	24	lenses	lense	NOUN
dss-287	299	25	with	with	ADP
dss-287	299	26	improved	improved	ADJ
dss-287	299	27	light	light	ADJ
dss-287	299	28	-	-	PUNCT
dss-287	299	29	gathering	gather	VERB
dss-287	299	30	capabilities	capability	NOUN
dss-287	300	1	[	[	X
dss-287	300	2	48	48	NUM
dss-287	300	3	]	]	PUNCT
dss-287	300	4	.	.	PUNCT
dss-287	301	1	fraunhofer	fraunhofer	PROPN
dss-287	301	2	’s	’s	PART
dss-287	301	3	work	work	NOUN
dss-287	301	4	on	on	ADP
dss-287	301	5	apochromatic	apochromatic	ADJ
dss-287	301	6	lenses	lense	NOUN
dss-287	301	7	,	,	PUNCT
dss-287	301	8	which	which	PRON
dss-287	301	9	correct	correct	VERB
dss-287	301	10	for	for	ADP
dss-287	301	11	three	three	NUM
dss-287	301	12	wavelengths	wavelength	NOUN
dss-287	301	13	of	of	ADP
dss-287	301	14	light	light	NOUN
dss-287	301	15	,	,	PUNCT
dss-287	301	16	further	far	ADV
dss-287	301	17	refined	refined	ADJ
dss-287	301	18	refractor	refractor	NOUN
dss-287	301	19	performance	performance	NOUN
dss-287	301	20	.	.	PUNCT
dss-287	302	1	modern	modern	ADJ
dss-287	302	2	literature	literature	NOUN
dss-287	302	3	,	,	PUNCT
dss-287	302	4	such	such	ADJ
dss-287	302	5	as	as	ADP
dss-287	302	6	born	bear	VERB
dss-287	302	7	and	and	CCONJ
dss-287	302	8	wolf	wolf	NOUN
dss-287	302	9	’s	’s	PART
dss-287	302	10	principles	principle	NOUN
dss-287	302	11	of	of	ADP
dss-287	302	12	optics	optic	NOUN
dss-287	302	13	,	,	PUNCT
dss-287	302	14	provides	provide	VERB
dss-287	302	15	a	a	DET
dss-287	302	16	detailed	detailed	ADJ
dss-287	302	17	theoretical	theoretical	ADJ
dss-287	302	18	framework	framework	NOUN
dss-287	302	19	for	for	ADP
dss-287	302	20	understanding	understand	VERB
dss-287	302	21	lens	lens	NOUN
dss-287	302	22	aberrations	aberration	NOUN
dss-287	302	23	and	and	CCONJ
dss-287	302	24	their	their	PRON
dss-287	302	25	correction	correction	NOUN
dss-287	302	26	in	in	ADP
dss-287	302	27	refractor	refractor	NOUN
dss-287	302	28	designs	design	NOUN
dss-287	302	29	[	[	X
dss-287	302	30	49	49	NUM
dss-287	302	31	]	]	PUNCT
dss-287	302	32	.	.	PUNCT
dss-287	303	1	recent	recent	ADJ
dss-287	303	2	studies	study	NOUN
dss-287	303	3	explore	explore	VERB
dss-287	303	4	the	the	DET
dss-287	303	5	integration	integration	NOUN
dss-287	303	6	of	of	ADP
dss-287	303	7	adaptive	adaptive	ADJ
dss-287	303	8	optics	optic	NOUN
dss-287	303	9	and	and	CCONJ
dss-287	303	10	digital	digital	ADJ
dss-287	303	11	imaging	imaging	NOUN
dss-287	303	12	in	in	ADP
dss-287	303	13	refractors	refractor	NOUN
dss-287	303	14	,	,	PUNCT
dss-287	303	15	expanding	expand	VERB
dss-287	303	16	their	their	PRON
dss-287	303	17	utility	utility	NOUN
dss-287	303	18	beyond	beyond	ADP
dss-287	303	19	traditional	traditional	ADJ
dss-287	303	20	astronomy	astronomy	NOUN
dss-287	303	21	.	.	PUNCT
dss-287	304	1	the	the	DET
dss-287	304	2	design	design	NOUN
dss-287	304	3	of	of	ADP
dss-287	304	4	a	a	DET
dss-287	304	5	refractor	refractor	NOUN
dss-287	304	6	telescope	telescope	NOUN
dss-287	304	7	involves	involve	VERB
dss-287	304	8	several	several	ADJ
dss-287	304	9	key	key	ADJ
dss-287	304	10	components	component	NOUN
dss-287	304	11	:	:	PUNCT
dss-287	304	12	the	the	DET
dss-287	304	13	objective	objective	ADJ
dss-287	304	14	lens	len	NOUN
dss-287	304	15	,	,	PUNCT
dss-287	304	16	the	the	DET
dss-287	304	17	tube	tube	NOUN
dss-287	304	18	assembly	assembly	NOUN
dss-287	304	19	,	,	PUNCT
dss-287	304	20	the	the	DET
dss-287	304	21	focuser	focuser	NOUN
dss-287	304	22	,	,	PUNCT
dss-287	304	23	and	and	CCONJ
dss-287	304	24	the	the	DET
dss-287	304	25	eyepiece	eyepiece	NOUN
dss-287	304	26	.	.	PUNCT
dss-287	305	1	each	each	DET
dss-287	305	2	element	element	NOUN
dss-287	305	3	requires	require	VERB
dss-287	305	4	precise	precise	ADJ
dss-287	305	5	engineering	engineering	NOUN
dss-287	305	6	to	to	PART
dss-287	305	7	optimize	optimize	VERB
dss-287	305	8	performance	performance	NOUN
dss-287	305	9	.	.	PUNCT
dss-287	306	1	4.1	4.1	NUM
dss-287	306	2	objective	objective	ADJ
dss-287	306	3	lens	lens	NOUN
dss-287	306	4	design	design	VERB
dss-287	306	5	the	the	DET
dss-287	306	6	objective	objective	ADJ
dss-287	306	7	lens	lens	NOUN
dss-287	306	8	is	be	AUX
dss-287	306	9	the	the	DET
dss-287	306	10	heart	heart	NOUN
dss-287	306	11	of	of	ADP
dss-287	306	12	a	a	DET
dss-287	306	13	refractor	refractor	NOUN
dss-287	306	14	telescope	telescope	NOUN
dss-287	306	15	,	,	PUNCT
dss-287	306	16	determining	determine	VERB
dss-287	306	17	its	its	PRON
dss-287	306	18	light	light	ADJ
dss-287	306	19	-	-	PUNCT
dss-287	306	20	gathering	gather	VERB
dss-287	306	21	power	power	NOUN
dss-287	306	22	and	and	CCONJ
dss-287	306	23	resolution	resolution	NOUN
dss-287	306	24	.	.	PUNCT
dss-287	307	1	the	the	DET
dss-287	307	2	lens	len	NOUN
dss-287	307	3	’s	’s	PART
dss-287	307	4	focal	focal	ADJ
dss-287	307	5	length	length	NOUN
dss-287	307	6	(	(	PUNCT
dss-287	307	7	f	f	X
dss-287	307	8	)	)	PUNCT
dss-287	307	9	and	and	CCONJ
dss-287	307	10	aperture	aperture	ADV
dss-287	307	11	(	(	PUNCT
dss-287	307	12	d	d	X
dss-287	307	13	)	)	PUNCT
dss-287	307	14	dictate	dictate	VERB
dss-287	307	15	the	the	DET
dss-287	307	16	telescope	telescope	NOUN
dss-287	307	17	’s	’s	PART
dss-287	307	18	magnification	magnification	NOUN
dss-287	307	19	and	and	CCONJ
dss-287	307	20	field	field	NOUN
dss-287	307	21	of	of	ADP
dss-287	307	22	view	view	NOUN
dss-287	307	23	,	,	PUNCT
dss-287	307	24	calculated	calculate	VERB
dss-287	307	25	as	as	ADP
dss-287	307	26	m	m	NOUN
dss-287	307	27	=	=	ADJ
dss-287	307	28	fobjective	fobjective	ADJ
dss-287	307	29	/	/	SYM
dss-287	307	30	feyepiece	feyepiece	PROPN
dss-287	307	31	.	.	PUNCT
dss-287	308	1	to	to	PART
dss-287	308	2	minimize	minimize	VERB
dss-287	308	3	chromatic	chromatic	ADJ
dss-287	308	4	aberration	aberration	NOUN
dss-287	308	5	,	,	PUNCT
dss-287	308	6	modern	modern	ADJ
dss-287	308	7	refractors	refractor	NOUN
dss-287	308	8	employ	employ	VERB
dss-287	308	9	achromatic	achromatic	ADJ
dss-287	308	10	or	or	CCONJ
dss-287	308	11	apochromatic	apochromatic	ADJ
dss-287	308	12	lens	lens	NOUN
dss-287	308	13	systems	system	NOUN
dss-287	308	14	.	.	PUNCT
dss-287	309	1	an	an	DET
dss-287	309	2	achromatic	achromatic	ADJ
dss-287	309	3	doublet	doublet	NOUN
dss-287	309	4	(	(	PUNCT
dss-287	309	5	fig	fig	NOUN
dss-287	309	6	.	.	NOUN
dss-287	309	7	2	2	NUM
dss-287	309	8	)	)	PUNCT
dss-287	309	9	typically	typically	ADV
dss-287	309	10	pairs	pair	VERB
dss-287	309	11	a	a	DET
dss-287	309	12	convex	convex	ADJ
dss-287	309	13	crown	crown	NOUN
dss-287	309	14	glass	glass	NOUN
dss-287	309	15	lens	lens	NOUN
dss-287	309	16	(	(	PUNCT
dss-287	309	17	low	low	ADJ
dss-287	309	18	dispersion	dispersion	NOUN
dss-287	309	19	)	)	PUNCT
dss-287	309	20	with	with	ADP
dss-287	309	21	a	a	DET
dss-287	309	22	concave	concave	ADJ
dss-287	309	23	flint	flint	NOUN
dss-287	309	24	glass	glass	NOUN
dss-287	309	25	lens	lens	NOUN
dss-287	309	26	(	(	PUNCT
dss-287	309	27	high	high	ADJ
dss-287	309	28	dispersion	dispersion	NOUN
dss-287	309	29	)	)	PUNCT
dss-287	309	30	,	,	PUNCT
dss-287	309	31	aligning	align	VERB
dss-287	309	32	red	red	ADJ
dss-287	309	33	and	and	CCONJ
dss-287	309	34	blue	blue	ADJ
dss-287	309	35	wavelengths	wavelength	NOUN
dss-287	309	36	at	at	ADP
dss-287	309	37	a	a	DET
dss-287	309	38	common	common	ADJ
dss-287	309	39	focal	focal	ADJ
dss-287	309	40	point	point	NOUN
dss-287	309	41	[	[	X
dss-287	309	42	50	50	NUM
dss-287	309	43	]	]	PUNCT
dss-287	309	44	.	.	PUNCT
dss-287	310	1	early	early	ADJ
dss-287	310	2	achromatic	achromatic	ADJ
dss-287	310	3	refractors	refractor	NOUN
dss-287	310	4	,	,	PUNCT
dss-287	310	5	developed	develop	VERB
dss-287	310	6	around	around	ADP
dss-287	310	7	1760	1760	NUM
dss-287	310	8	by	by	ADP
dss-287	310	9	john	john	PROPN
dss-287	310	10	dollond	dollond	PROPN
dss-287	310	11	and	and	CCONJ
dss-287	310	12	jesse	jesse	PROPN
dss-287	310	13	ramsden	ramsden	PROPN
dss-287	310	14	,	,	PUNCT
dss-287	310	15	featured	feature	VERB
dss-287	310	16	small	small	ADJ
dss-287	310	17	doublet	doublet	ADJ
dss-287	310	18	lenses	lense	NOUN
dss-287	310	19	(	(	PUNCT
dss-287	310	20	aperture	aperture	ADV
dss-287	310	21	~130	~130	PROPN
dss-287	310	22	mm	mm	NUM
dss-287	310	23	)	)	PUNCT
dss-287	310	24	.	.	PUNCT
dss-287	311	1	advances	advance	NOUN
dss-287	311	2	in	in	ADP
dss-287	311	3	flint	flint	ADJ
dss-287	311	4	glass	glass	NOUN
dss-287	311	5	production	production	NOUN
dss-287	311	6	by	by	ADP
dss-287	311	7	pierre	pierre	PROPN
dss-287	311	8	louis	louis	PROPN
dss-287	311	9	guinand	guinand	NOUN
dss-287	311	10	enabled	enable	VERB
dss-287	311	11	joseph	joseph	PROPN
dss-287	311	12	von	von	PROPN
dss-287	311	13	fraunhofer	fraunhofer	PROPN
dss-287	311	14	to	to	PART
dss-287	311	15	design	design	VERB
dss-287	311	16	a	a	DET
dss-287	311	17	larger	large	ADJ
dss-287	311	18	240	240	NUM
dss-287	311	19	mm	mm	NOUN
dss-287	311	20	air	air	NOUN
dss-287	311	21	-	-	PUNCT
dss-287	311	22	spaced	space	VERB
dss-287	311	23	doublet	doublet	NOUN
dss-287	311	24	(	(	PUNCT
dss-287	311	25	fig	fig	NOUN
dss-287	311	26	.	.	PUNCT
dss-287	311	27	2	2	NUM
dss-287	311	28	)	)	PUNCT
dss-287	311	29	,	,	PUNCT
dss-287	311	30	first	first	ADV
dss-287	311	31	used	use	VERB
dss-287	311	32	in	in	ADP
dss-287	311	33	the	the	DET
dss-287	311	34	dorpat	dorpat	PROPN
dss-287	311	35	refractor	refractor	PROPN
dss-287	311	36	.	.	PUNCT
dss-287	312	1	this	this	DET
dss-287	312	2	fraunhofer	fraunhofer	PROPN
dss-287	312	3	doublet	doublet	PROPN
dss-287	312	4	,	,	PUNCT
dss-287	312	5	with	with	ADP
dss-287	312	6	a	a	DET
dss-287	312	7	crown	crown	NOUN
dss-287	312	8	and	and	CCONJ
dss-287	312	9	flint	flint	ADJ
dss-287	312	10	lens	lens	NOUN
dss-287	312	11	separated	separate	VERB
dss-287	312	12	by	by	ADP
dss-287	312	13	a	a	DET
dss-287	312	14	small	small	ADJ
dss-287	312	15	air	air	NOUN
dss-287	312	16	gap	gap	NOUN
dss-287	312	17	,	,	PUNCT
dss-287	312	18	offered	offer	VERB
dss-287	312	19	four	four	NUM
dss-287	312	20	optical	optical	ADJ
dss-287	312	21	surfaces	surface	NOUN
dss-287	312	22	to	to	PART
dss-287	312	23	correct	correct	VERB
dss-287	312	24	chromatic	chromatic	ADJ
dss-287	312	25	and	and	CCONJ
dss-287	312	26	spherical	spherical	ADJ
dss-287	312	27	aberration	aberration	NOUN
dss-287	312	28	,	,	PUNCT
dss-287	312	29	as	as	ADV
dss-287	312	30	well	well	ADV
dss-287	312	31	as	as	ADP
dss-287	312	32	coma	coma	NOUN
dss-287	312	33	.	.	PUNCT
dss-287	313	1	optimal	optimal	ADJ
dss-287	313	2	performance	performance	NOUN
dss-287	313	3	is	be	AUX
dss-287	313	4	usually	usually	ADV
dss-287	313	5	achieved	achieve	VERB
dss-287	313	6	at	at	ADP
dss-287	313	7	focal	focal	ADJ
dss-287	313	8	ratios	ratio	NOUN
dss-287	313	9	between	between	ADP
dss-287	313	10	ƒ/10	ƒ/10	ADJ
dss-287	313	11	and	and	CCONJ
dss-287	313	12	ƒ/20	ƒ/20	NOUN
dss-287	313	13	,	,	PUNCT
dss-287	313	14	with	with	ADP
dss-287	313	15	faster	fast	ADJ
dss-287	313	16	ratios	ratio	NOUN
dss-287	313	17	used	use	VERB
dss-287	313	18	for	for	ADP
dss-287	313	19	wide	wide	ADJ
dss-287	313	20	-	-	PUNCT
dss-287	313	21	field	field	NOUN
dss-287	313	22	applications	application	NOUN
dss-287	313	23	like	like	ADP
dss-287	313	24	astrophotography	astrophotography	NOUN
dss-287	313	25	.	.	PUNCT
dss-287	314	1	the	the	DET
dss-287	314	2	steinheil	steinheil	NOUN
dss-287	314	3	achromatic	achromatic	ADJ
dss-287	314	4	doublet	doublet	NOUN
dss-287	314	5	(	(	PUNCT
dss-287	314	6	fig	fig	NOUN
dss-287	314	7	.	.	NOUN
dss-287	314	8	2	2	NUM
dss-287	314	9	)	)	PUNCT
dss-287	314	10	positions	position	NOUN
dss-287	314	11	the	the	DET
dss-287	314	12	flint	flint	ADJ
dss-287	314	13	glass	glass	NOUN
dss-287	314	14	element	element	NOUN
dss-287	314	15	at	at	ADP
dss-287	314	16	the	the	DET
dss-287	314	17	front	front	NOUN
dss-287	314	18	and	and	CCONJ
dss-287	314	19	the	the	DET
dss-287	314	20	crown	crown	NOUN
dss-287	314	21	glass	glass	NOUN
dss-287	314	22	at	at	ADP
dss-287	314	23	the	the	DET
dss-287	314	24	rear	rear	NOUN
dss-287	314	25	,	,	PUNCT
dss-287	314	26	unlike	unlike	ADP
dss-287	314	27	the	the	DET
dss-287	314	28	more	more	ADV
dss-287	314	29	common	common	ADJ
dss-287	314	30	fraunhofer	fraunhofer	NOUN
dss-287	314	31	design	design	NOUN
dss-287	314	32	.	.	PUNCT
dss-287	315	1	this	this	DET
dss-287	315	2	configuration	configuration	NOUN
dss-287	315	3	requires	require	VERB
dss-287	315	4	stronger	strong	ADJ
dss-287	315	5	lens	lens	NOUN
dss-287	315	6	curvatures	curvature	NOUN
dss-287	315	7	and	and	CCONJ
dss-287	315	8	typically	typically	ADV
dss-287	315	9	features	feature	VERB
dss-287	315	10	a	a	DET
dss-287	315	11	narrower	narrow	ADJ
dss-287	315	12	air	air	NOUN
dss-287	315	13	gap	gap	NOUN
dss-287	315	14	between	between	ADP
dss-287	315	15	the	the	DET
dss-287	315	16	elements	element	NOUN
dss-287	315	17	.	.	PUNCT
dss-287	316	1	while	while	SCONJ
dss-287	316	2	it	it	PRON
dss-287	316	3	offers	offer	VERB
dss-287	316	4	improved	improved	ADJ
dss-287	316	5	correction	correction	NOUN
dss-287	316	6	of	of	ADP
dss-287	316	7	optical	optical	ADJ
dss-287	316	8	dss	dss	NOUN
dss-287	316	9	vol	vol	NOUN
dss-287	316	10	.	.	PROPN
dss-287	317	1	6	6	NUM
dss-287	317	2	,	,	PUNCT
dss-287	317	3	no	no	INTJ
dss-287	317	4	.	.	NOUN
dss-287	317	5	1	1	NUM
dss-287	317	6	,	,	PUNCT
dss-287	317	7	2025	2025	NUM
dss-287	317	8	,	,	PUNCT
dss-287	317	9	pp.49	pp.49	NOUN
dss-287	317	10	-	-	SYM
dss-287	317	11	90	90	NUM
dss-287	317	12	59	59	NUM
dss-287	317	13	aberrations	aberration	NOUN
dss-287	317	14	,	,	PUNCT
dss-287	317	15	its	its	PRON
dss-287	317	16	use	use	NOUN
dss-287	317	17	is	be	AUX
dss-287	317	18	limited	limit	VERB
dss-287	317	19	due	due	ADP
dss-287	317	20	to	to	ADP
dss-287	317	21	the	the	DET
dss-287	317	22	flint	flint	ADJ
dss-287	317	23	glass	glass	NOUN
dss-287	317	24	's	's	PART
dss-287	317	25	susceptibility	susceptibility	NOUN
dss-287	317	26	to	to	ADP
dss-287	317	27	atmospheric	atmospheric	ADJ
dss-287	317	28	moisture	moisture	NOUN
dss-287	317	29	,	,	PUNCT
dss-287	317	30	which	which	PRON
dss-287	317	31	can	can	AUX
dss-287	317	32	lead	lead	VERB
dss-287	317	33	to	to	ADP
dss-287	317	34	degradation	degradation	NOUN
dss-287	317	35	such	such	ADJ
dss-287	317	36	as	as	ADP
dss-287	317	37	spotting	spot	VERB
dss-287	317	38	or	or	CCONJ
dss-287	317	39	opacity	opacity	NOUN
dss-287	317	40	over	over	ADP
dss-287	317	41	time	time	NOUN
dss-287	317	42	[	[	X
dss-287	317	43	155	155	NUM
dss-287	317	44	]	]	PUNCT
dss-287	317	45	.	.	PUNCT
dss-287	318	1	fig	fig	NOUN
dss-287	318	2	.	.	PUNCT
dss-287	319	1	2	2	NUM
dss-287	319	2	scheme	scheme	NOUN
dss-287	319	3	of	of	ADP
dss-287	319	4	refracting	refract	VERB
dss-287	319	5	achromatic	achromatic	ADJ
dss-287	319	6	designs	design	NOUN
dss-287	319	7	(	(	PUNCT
dss-287	319	8	fraunhofer	fraunhofer	NOUN
dss-287	319	9	and	and	CCONJ
dss-287	319	10	steinheil	steinheil	NOUN
dss-287	319	11	)	)	PUNCT
dss-287	320	1	[	[	X
dss-287	320	2	155	155	NUM
dss-287	320	3	]	]	PUNCT
dss-287	320	4	in	in	ADP
dss-287	320	5	table	table	NOUN
dss-287	320	6	1	1	NUM
dss-287	320	7	are	be	AUX
dss-287	320	8	given	give	VERB
dss-287	320	9	several	several	ADJ
dss-287	320	10	other	other	ADJ
dss-287	320	11	achromat	achromat	PROPN
dss-287	320	12	doublet	doublet	ADJ
dss-287	320	13	designs	design	NOUN
dss-287	320	14	as	as	ADV
dss-287	320	15	well	well	ADV
dss-287	320	16	,	,	PUNCT
dss-287	320	17	presented	present	VERB
dss-287	320	18	in	in	ADP
dss-287	320	19	[	[	X
dss-287	320	20	40	40	NUM
dss-287	320	21	]	]	PUNCT
dss-287	320	22	.	.	PUNCT
dss-287	321	1	these	these	DET
dss-287	321	2	specifications	specification	NOUN
dss-287	321	3	are	be	AUX
dss-287	321	4	for	for	ADP
dss-287	321	5	100	100	NUM
dss-287	321	6	mm	mm	NUM
dss-287	321	7	aperture	aperture	NOUN
dss-287	321	8	,	,	PUNCT
dss-287	321	9	ƒ/10	ƒ/10	ADJ
dss-287	321	10	lenses	lense	NOUN
dss-287	321	11	.	.	PUNCT
dss-287	322	1	however	however	ADV
dss-287	322	2	,	,	PUNCT
dss-287	322	3	they	they	PRON
dss-287	322	4	can	can	AUX
dss-287	322	5	be	be	AUX
dss-287	322	6	adapted	adapt	VERB
dss-287	322	7	for	for	ADP
dss-287	322	8	refractors	refractor	NOUN
dss-287	322	9	with	with	ADP
dss-287	322	10	similar	similar	ADJ
dss-287	322	11	apertures	aperture	NOUN
dss-287	322	12	,	,	PUNCT
dss-287	322	13	ranging	range	VERB
dss-287	322	14	from	from	ADP
dss-287	322	15	about	about	ADP
dss-287	322	16	50	50	NUM
dss-287	322	17	%	%	NOUN
dss-287	322	18	faster	fast	ADV
dss-287	322	19	to	to	PART
dss-287	322	20	slower	slow	ADJ
dss-287	322	21	focal	focal	ADJ
dss-287	322	22	ratios	ratio	NOUN
dss-287	322	23	.	.	PUNCT
dss-287	323	1	this	this	DET
dss-287	323	2	scaling	scaling	NOUN
dss-287	323	3	is	be	AUX
dss-287	323	4	done	do	VERB
dss-287	323	5	by	by	ADP
dss-287	323	6	directly	directly	ADV
dss-287	323	7	applying	apply	VERB
dss-287	323	8	the	the	DET
dss-287	323	9	desired	desire	VERB
dss-287	323	10	focal	focal	ADJ
dss-287	323	11	ratio	ratio	NOUN
dss-287	323	12	to	to	ADP
dss-287	323	13	the	the	DET
dss-287	323	14	given	give	VERB
dss-287	323	15	radii	radius	NOUN
dss-287	323	16	,	,	PUNCT
dss-287	323	17	requiring	require	VERB
dss-287	323	18	only	only	ADJ
dss-287	323	19	small	small	ADJ
dss-287	323	20	ray	ray	NOUN
dss-287	323	21	tracing	tracing	NOUN
dss-287	323	22	tweaks	tweak	NOUN
dss-287	323	23	.	.	PUNCT
dss-287	324	1	similarly	similarly	ADV
dss-287	324	2	,	,	PUNCT
dss-287	324	3	swapping	swap	VERB
dss-287	324	4	out	out	ADP
dss-287	324	5	comparable	comparable	ADJ
dss-287	324	6	glass	glass	NOUN
dss-287	324	7	types	type	NOUN
dss-287	324	8	should	should	AUX
dss-287	324	9	only	only	ADV
dss-287	324	10	need	need	VERB
dss-287	324	11	minor	minor	ADJ
dss-287	324	12	adjustments	adjustment	NOUN
dss-287	324	13	.	.	PUNCT
dss-287	325	1	glass	glass	NOUN
dss-287	325	2	thickness	thickness	NOUN
dss-287	325	3	is	be	AUX
dss-287	325	4	n't	not	PART
dss-287	325	5	a	a	DET
dss-287	325	6	concern	concern	NOUN
dss-287	325	7	,	,	PUNCT
dss-287	325	8	except	except	SCONJ
dss-287	325	9	in	in	ADP
dss-287	325	10	the	the	DET
dss-287	325	11	case	case	NOUN
dss-287	325	12	of	of	ADP
dss-287	325	13	gausstype	gausstype	NOUN
dss-287	325	14	.	.	PUNCT
dss-287	326	1	table	table	NOUN
dss-287	326	2	1	1	NUM
dss-287	326	3	.	.	PUNCT
dss-287	327	1	achromat	achromat	NOUN
dss-287	327	2	doublets	doublet	NOUN
dss-287	327	3	designs	design	NOUN
dss-287	327	4	,	,	PUNCT
dss-287	327	5	general	general	ADJ
dss-287	327	6	specifications	specification	NOUN
dss-287	327	7	for	for	ADP
dss-287	327	8	bk7	bk7	NOUN
dss-287	327	9	/	/	SYM
dss-287	327	10	f2	f2	ADJ
dss-287	327	11	glass	glass	NOUN
dss-287	327	12	(	(	PUNCT
dss-287	327	13	in	in	ADP
dss-287	327	14	units	unit	NOUN
dss-287	327	15	of	of	ADP
dss-287	327	16	focal	focal	ADJ
dss-287	327	17	length	length	NOUN
dss-287	327	18	)	)	PUNCT
dss-287	328	1	[	[	X
dss-287	328	2	40	40	NUM
dss-287	328	3	]	]	PUNCT
dss-287	328	4	type	type	NOUN
dss-287	328	5	aplanat	aplanat	PROPN
dss-287	328	6	r1	r1	PROPN
dss-287	328	7	t1	t1	PROPN
dss-287	328	8	m1	m1	PROPN
dss-287	328	9	r2	r2	PROPN
dss-287	328	10	air	air	NOUN
dss-287	328	11	(	(	PUNCT
dss-287	328	12	m2	m2	PROPN
dss-287	328	13	)	)	PUNCT
dss-287	328	14	r3	r3	PROPN
dss-287	328	15	t3	t3	PROPN
dss-287	328	16	m3	m3	PROPN
dss-287	328	17	r4	r4	PROPN
dss-287	328	18	fraunhofer	fraunhofer	PROPN
dss-287	329	1	yes	yes	INTJ
dss-287	329	2	0.6	0.6	NUM
dss-287	329	3	0.011	0.011	NUM
dss-287	329	4	bk7	bk7	NOUN
dss-287	329	5	-0.36	-0.36	NUM
dss-287	329	6	0.001	0.001	NUM
dss-287	329	7	-0.363	-0.363	NOUN
dss-287	330	1	0.007	0.007	NUM
dss-287	331	1	f2	f2	INTJ
dss-287	332	1	-1.51	-1.51	NUM
dss-287	332	2	steinheil	steinheil	NOUN
dss-287	332	3	yes	yes	INTJ
dss-287	333	1	0.442	0.442	NUM
dss-287	333	2	0.007	0.007	NUM
dss-287	333	3	f2	f2	PROPN
dss-287	333	4	0.229	0.229	NUM
dss-287	333	5	0.001	0.001	NUM
dss-287	333	6	0.2285	0.2285	NUM
dss-287	333	7	0.009	0.009	NUM
dss-287	333	8	bk7	bk7	NOUN
dss-287	333	9	-15	-15	PROPN
dss-287	333	10	baker	baker	PROPN
dss-287	334	1	yes	yes	INTJ
dss-287	334	2	0.582	0.582	NUM
dss-287	334	3	0.011	0.011	NUM
dss-287	334	4	bk7	bk7	NOUN
dss-287	334	5	-0.363	-0.363	PUNCT
dss-287	334	6	0.003	0.003	NUM
dss-287	334	7	-0.363	-0.363	NOUN
dss-287	334	8	0.007	0.007	NUM
dss-287	334	9	f2	f2	PRON
dss-287	334	10	-1.59	-1.59	NUM
dss-287	334	11	littrow	littrow	NOUN
dss-287	334	12	no	no	DET
dss-287	334	13	0.45	0.45	NUM
dss-287	334	14	0.01	0.01	NUM
dss-287	334	15	bk7	bk7	NOUN
dss-287	334	16	-0.45	-0.45	NUM
dss-287	334	17	0.00005	0.00005	NUM
dss-287	334	18	-0.45	-0.45	NUM
dss-287	334	19	0.006	0.006	NUM
dss-287	334	20	f2	f2	PROPN
dss-287	334	21	-7.7	-7.7	ADJ
dss-287	334	22	clark	clark	NOUN
dss-287	334	23	no	no	DET
dss-287	334	24	0.428	0.428	NUM
dss-287	334	25	0.01	0.01	NUM
dss-287	334	26	bk7	bk7	NOUN
dss-287	334	27	-0.428	-0.428	PUNCT
dss-287	334	28	0.015	0.015	NUM
dss-287	334	29	-0.4	-0.4	NUM
dss-287	334	30	0.0065	0.0065	NUM
dss-287	334	31	f2	f2	PROPN
dss-287	334	32	-8	-8	PROPN
dss-287	334	33	gauss	gauss	NOUN
dss-287	334	34	(	(	PUNCT
dss-287	334	35	f/14	f/14	PROPN
dss-287	334	36	and	and	CCONJ
dss-287	334	37	slower	slow	ADJ
dss-287	334	38	)	)	PUNCT
dss-287	335	1	yes	yes	INTJ
dss-287	335	2	0.129	0.129	NUM
dss-287	335	3	0.00665	0.00665	NUM
dss-287	335	4	bk7	bk7	VERB
dss-287	335	5	0.3345	0.3345	NUM
dss-287	335	6	0.0003	0.0003	NUM
dss-287	335	7	0.14206	0.14206	NUM
dss-287	335	8	0.0042	0.0042	NUM
dss-287	335	9	f2	f2	PROPN
dss-287	335	10	0.10357	0.10357	NUM
dss-287	335	11	cooke	cooke	NOUN
dss-287	335	12	no	no	DET
dss-287	335	13	0.373	0.373	NUM
dss-287	335	14	0.009	0.009	NUM
dss-287	335	15	bk7	bk7	NOUN
dss-287	335	16	-0.563	-0.563	NOUN
dss-287	335	17	0.001	0.001	NUM
dss-287	335	18	-0.527	-0.527	NOUN
dss-287	335	19	0.006	0.006	NUM
dss-287	335	20	f2	f2	PROPN
dss-287	335	21	4.7	4.7	NUM
dss-287	335	22	apochromatic	apochromatic	ADJ
dss-287	335	23	lenses	lense	NOUN
dss-287	335	24	(	(	PUNCT
dss-287	335	25	fig	fig	NOUN
dss-287	335	26	.	.	PUNCT
dss-287	336	1	3	3	NUM
dss-287	336	2	)	)	PUNCT
dss-287	336	3	,	,	PUNCT
dss-287	336	4	often	often	ADV
dss-287	336	5	triplets	triplet	NOUN
dss-287	336	6	,	,	PUNCT
dss-287	336	7	incorporate	incorporate	VERB
dss-287	336	8	an	an	DET
dss-287	336	9	additional	additional	ADJ
dss-287	336	10	element	element	NOUN
dss-287	336	11	(	(	PUNCT
dss-287	336	12	e.g.	e.g.	ADV
dss-287	336	13	,	,	PUNCT
dss-287	336	14	extra	extra	ADJ
dss-287	336	15	-	-	ADJ
dss-287	336	16	low	low	ADJ
dss-287	336	17	dispersion	dispersion	NOUN
dss-287	336	18	glass	glass	NOUN
dss-287	336	19	)	)	PUNCT
dss-287	336	20	to	to	PART
dss-287	336	21	align	align	VERB
dss-287	336	22	three	three	NUM
dss-287	336	23	wavelengths	wavelength	NOUN
dss-287	336	24	,	,	PUNCT
dss-287	336	25	reducing	reduce	VERB
dss-287	336	26	residual	residual	ADJ
dss-287	336	27	color	color	NOUN
dss-287	336	28	aberration	aberration	NOUN
dss-287	337	1	[	[	X
dss-287	337	2	51	51	NUM
dss-287	337	3	]	]	PUNCT
dss-287	337	4	.	.	PUNCT
dss-287	338	1	invented	invent	VERB
dss-287	338	2	in	in	ADP
dss-287	338	3	1840	1840	NUM
dss-287	338	4	by	by	ADP
dss-287	338	5	hungarian	hungarian	ADJ
dss-287	338	6	optician	optician	PROPN
dss-287	338	7	joseph	joseph	PROPN
dss-287	338	8	petzval	petzval	PROPN
dss-287	338	9	,	,	PUNCT
dss-287	338	10	this	this	DET
dss-287	338	11	apochromatic	apochromatic	ADJ
dss-287	338	12	lens	lens	NOUN
dss-287	338	13	(	(	PUNCT
dss-287	338	14	f/4	f/4	X
dss-287	338	15	–	–	PUNCT
dss-287	338	16	f/6	f/6	NUM
dss-287	338	17	)	)	PUNCT
dss-287	338	18	design	design	NOUN
dss-287	338	19	uses	use	VERB
dss-287	338	20	two	two	NUM
dss-287	338	21	separated	separate	VERB
dss-287	338	22	doublets	doublet	NOUN
dss-287	338	23	(	(	PUNCT
dss-287	338	24	one	one	NUM
dss-287	338	25	cemented	cement	VERB
dss-287	338	26	,	,	PUNCT
dss-287	338	27	one	one	NUM
dss-287	338	28	not	not	PART
dss-287	338	29	)	)	PUNCT
dss-287	338	30	.	.	PUNCT
dss-287	339	1	initially	initially	ADV
dss-287	339	2	a	a	DET
dss-287	339	3	fast	fast	ADJ
dss-287	339	4	portrait	portrait	NOUN
dss-287	339	5	lens	lens	NOUN
dss-287	339	6	(	(	PUNCT
dss-287	339	7	around	around	ADP
dss-287	339	8	ƒ/4	ƒ/4	NUM
dss-287	339	9	)	)	PUNCT
dss-287	339	10	for	for	ADP
dss-287	339	11	early	early	ADJ
dss-287	339	12	photography	photography	NOUN
dss-287	339	13	,	,	PUNCT
dss-287	339	14	its	its	PRON
dss-287	339	15	doublets	doublet	NOUN
dss-287	339	16	can	can	AUX
dss-287	339	17	be	be	AUX
dss-287	339	18	refined	refine	VERB
dss-287	339	19	for	for	ADP
dss-287	339	20	telescopes	telescope	NOUN
dss-287	339	21	to	to	PART
dss-287	339	22	minimize	minimize	VERB
dss-287	339	23	color	color	NOUN
dss-287	339	24	distortion	distortion	NOUN
dss-287	339	25	across	across	ADP
dss-287	339	26	a	a	DET
dss-287	339	27	wider	wide	ADJ
dss-287	339	28	field	field	NOUN
dss-287	339	29	(	(	PUNCT
dss-287	339	30	about	about	ADV
dss-287	339	31	5	5	NUM
dss-287	339	32	°	°	NUM
dss-287	339	33	)	)	PUNCT
dss-287	339	34	.	.	PUNCT
dss-287	340	1	petzval	petzval	PROPN
dss-287	340	2	lenses	lense	NOUN
dss-287	340	3	produce	produce	VERB
dss-287	340	4	a	a	DET
dss-287	340	5	sharp	sharp	ADJ
dss-287	340	6	center	center	NOUN
dss-287	340	7	but	but	CCONJ
dss-287	340	8	have	have	AUX
dss-287	340	9	curved	curve	VERB
dss-287	340	10	and	and	CCONJ
dss-287	340	11	distorted	distorted	ADJ
dss-287	340	12	edges	edge	NOUN
dss-287	340	13	.	.	PUNCT
dss-287	341	1	the	the	DET
dss-287	341	2	lens	len	NOUN
dss-287	341	3	's	's	PART
dss-287	341	4	aperture	aperture	NOUN
dss-287	341	5	creates	create	VERB
dss-287	341	6	a	a	DET
dss-287	341	7	characteristic	characteristic	ADJ
dss-287	341	8	blurred	blur	VERB
dss-287	341	9	background	background	NOUN
dss-287	341	10	(	(	PUNCT
dss-287	341	11	bokeh	bokeh	NOUN
dss-287	341	12	)	)	PUNCT
dss-287	341	13	seen	see	VERB
dss-287	341	14	in	in	ADP
dss-287	341	15	19th	19th	ADJ
dss-287	341	16	-	-	PUNCT
dss-287	341	17	century	century	NOUN
dss-287	341	18	portraits	portrait	NOUN
dss-287	341	19	.	.	PUNCT
dss-287	342	1	astronomer	astronomer	PROPN
dss-287	342	2	e.e	e.e	PROPN
dss-287	342	3	.	.	PROPN
dss-287	342	4	barnard	barnard	PROPN
dss-287	342	5	used	use	VERB
dss-287	342	6	a	a	DET
dss-287	342	7	petzval	petzval	NOUN
dss-287	342	8	for	for	ADP
dss-287	342	9	milky	milky	ADJ
dss-287	342	10	way	way	NOUN
dss-287	342	11	photos	photo	NOUN
dss-287	342	12	,	,	PUNCT
dss-287	342	13	leading	lead	VERB
dss-287	342	14	to	to	ADP
dss-287	342	15	versions	version	NOUN
dss-287	342	16	specifically	specifically	ADV
dss-287	342	17	made	make	VERB
dss-287	342	18	for	for	ADP
dss-287	342	19	astronomy	astronomy	NOUN
dss-287	342	20	,	,	PUNCT
dss-287	342	21	like	like	ADP
dss-287	342	22	tele	tele	PROPN
dss-287	342	23	vue	vue	PROPN
dss-287	342	24	's	's	PART
dss-287	342	25	design	design	NOUN
dss-287	342	26	.	.	PUNCT
dss-287	343	1	by	by	ADP
dss-287	343	2	the	the	DET
dss-287	343	3	late	late	ADJ
dss-287	343	4	1800s	1800	NOUN
dss-287	343	5	,	,	PUNCT
dss-287	343	6	more	more	ADV
dss-287	343	7	diverse	diverse	ADJ
dss-287	343	8	optical	optical	ADJ
dss-287	343	9	glasses	glass	NOUN
dss-287	343	10	enabled	enable	VERB
dss-287	343	11	ernst	ernst	PROPN
dss-287	343	12	abbe	abbe	PROPN
dss-287	343	13	and	and	CCONJ
dss-287	343	14	peter	peter	PROPN
dss-287	343	15	rudolph	rudolph	PROPN
dss-287	343	16	at	at	ADP
dss-287	343	17	zeiss	zeiss	PROPN
dss-287	343	18	to	to	PART
dss-287	343	19	create	create	VERB
dss-287	343	20	apochromatic	apochromatic	ADJ
dss-287	343	21	microscope	microscope	NOUN
dss-287	343	22	lenses	lense	NOUN
dss-287	343	23	in	in	ADP
dss-287	343	24	1890	1890	NUM
dss-287	343	25	.	.	PUNCT
dss-287	344	1	however	however	ADV
dss-287	344	2	,	,	PUNCT
dss-287	344	3	h.	h.	PROPN
dss-287	344	4	dennis	dennis	PROPN
dss-287	344	5	taylor	taylor	PROPN
dss-287	344	6	at	at	ADP
dss-287	344	7	cooke	cooke	PROPN
dss-287	344	8	&	&	CCONJ
dss-287	344	9	sons	son	NOUN
dss-287	344	10	patented	patent	VERB
dss-287	344	11	the	the	DET
dss-287	344	12	first	first	ADJ
dss-287	344	13	large	large	ADJ
dss-287	344	14	triplet	triplet	NOUN
dss-287	344	15	lens	lens	NOUN
dss-287	344	16	with	with	ADP
dss-287	344	17	apochromatic	apochromatic	ADJ
dss-287	344	18	qualities	quality	NOUN
dss-287	344	19	in	in	ADP
dss-287	344	20	1892	1892	NUM
dss-287	344	21	.	.	PUNCT
dss-287	345	1	this	this	DET
dss-287	345	2	"	"	PUNCT
dss-287	345	3	cooke	cooke	PROPN
dss-287	345	4	triplet	triplet	NOUN
dss-287	345	5	"	"	PUNCT
dss-287	345	6	design	design	NOUN
dss-287	345	7	(	(	PUNCT
dss-287	345	8	f/4	f/4	NOUN
dss-287	345	9	–	–	PUNCT
dss-287	345	10	f/6	f/6	NOUN
dss-287	345	11	)	)	PUNCT
dss-287	345	12	,	,	PUNCT
dss-287	345	13	using	use	VERB
dss-287	345	14	a	a	DET
dss-287	345	15	crown	crown	NOUN
dss-287	345	16	lens	lens	NOUN
dss-287	345	17	doublet	doublet	ADV
dss-287	345	18	paired	pair	VERB
dss-287	345	19	with	with	ADP
dss-287	345	20	a	a	DET
dss-287	345	21	negative	negative	ADJ
dss-287	345	22	flint	flint	NOUN
dss-287	345	23	to	to	PART
dss-287	345	24	balance	balance	VERB
dss-287	345	25	dispersion	dispersion	NOUN
dss-287	345	26	,	,	PUNCT
dss-287	345	27	is	be	AUX
dss-287	345	28	the	the	DET
dss-287	345	29	foundation	foundation	NOUN
dss-287	345	30	for	for	ADP
dss-287	345	31	modern	modern	ADJ
dss-287	345	32	apochromatic	apochromatic	ADJ
dss-287	345	33	lenses	lense	NOUN
dss-287	345	34	.	.	PUNCT
dss-287	346	1	today	today	NOUN
dss-287	346	2	's	's	PART
dss-287	346	3	apochromatic	apochromatic	ADJ
dss-287	346	4	refractors	refractor	NOUN
dss-287	346	5	are	be	AUX
dss-287	346	6	usually	usually	ADV
dss-287	346	7	triplet	triplet	NOUN
dss-287	346	8	lenses	lense	NOUN
dss-287	346	9	(	(	PUNCT
dss-287	346	10	air	air	NOUN
dss-287	346	11	,	,	PUNCT
dss-287	346	12	oil	oil	NOUN
dss-287	346	13	,	,	PUNCT
dss-287	346	14	or	or	CCONJ
dss-287	346	15	cemented	cement	VERB
dss-287	346	16	)	)	PUNCT
dss-287	346	17	initially	initially	ADV
dss-287	346	18	made	make	VERB
dss-287	346	19	with	with	ADP
dss-287	346	20	synthetic	synthetic	ADJ
dss-287	346	21	fluorite	fluorite	NOUN
dss-287	346	22	for	for	ADP
dss-287	346	23	the	the	DET
dss-287	346	24	crown	crown	NOUN
dss-287	346	25	element	element	NOUN
dss-287	346	26	and	and	CCONJ
dss-287	346	27	two	two	NUM
dss-287	346	28	high	high	ADJ
dss-287	346	29	-	-	PUNCT
dss-287	346	30	dispersion	dispersion	NOUN
dss-287	346	31	flint	flint	NOUN
dss-287	346	32	glasses	glass	NOUN
dss-287	346	33	.	.	PUNCT
dss-287	347	1	the	the	DET
dss-287	347	2	specific	specific	ADJ
dss-287	347	3	glass	glass	NOUN
dss-287	347	4	types	type	NOUN
dss-287	347	5	significantly	significantly	ADV
dss-287	347	6	impact	impact	VERB
dss-287	347	7	both	both	DET
dss-287	347	8	optical	optical	ADJ
dss-287	347	9	quality	quality	NOUN
dss-287	347	10	and	and	CCONJ
dss-287	347	11	lens	lens	NOUN
dss-287	347	12	lifespan	lifespan	PROPN
dss-287	347	13	.	.	PUNCT
dss-287	348	1	air	air	NOUN
dss-287	348	2	-	-	PUNCT
dss-287	348	3	spaced	space	VERB
dss-287	348	4	designs	design	NOUN
dss-287	348	5	include	include	VERB
dss-287	348	6	screws	screw	NOUN
dss-287	348	7	for	for	ADP
dss-287	348	8	precise	precise	ADJ
dss-287	348	9	alignment	alignment	NOUN
dss-287	348	10	(	(	PUNCT
dss-287	348	11	centering	centering	NOUN
dss-287	348	12	and	and	CCONJ
dss-287	348	13	collimation	collimation	NOUN
dss-287	348	14	)	)	PUNCT
dss-287	348	15	.	.	PUNCT
dss-287	349	1	the	the	DET
dss-287	349	2	first	first	ADJ
dss-287	349	3	modern	modern	ADJ
dss-287	349	4	commercial	commercial	ADJ
dss-287	349	5	apochromats	apochromat	NOUN
dss-287	349	6	were	be	AUX
dss-287	349	7	takahashi	takahashi	PROPN
dss-287	349	8	's	's	PART
dss-287	349	9	ts	ts	ADP
dss-287	349	10	series	series	PROPN
dss-287	349	11	,	,	PUNCT
dss-287	349	12	using	use	VERB
dss-287	349	13	synthetic	synthetic	ADJ
dss-287	349	14	fluorite	fluorite	NOUN
dss-287	349	15	.	.	PUNCT
dss-287	350	1	in	in	ADP
dss-287	350	2	1981	1981	NUM
dss-287	350	3	,	,	PUNCT
dss-287	350	4	astro	astro	NOUN
dss-287	350	5	-	-	PUNCT
dss-287	350	6	physics	physics	PROPN
dss-287	350	7	(	(	PUNCT
dss-287	350	8	roland	roland	NOUN
dss-287	350	9	christen	christen	PROPN
dss-287	350	10	)	)	PUNCT
dss-287	350	11	introduced	introduce	VERB
dss-287	350	12	an	an	DET
dss-287	350	13	oil	oil	NOUN
dss-287	350	14	-	-	PUNCT
dss-287	350	15	spaced	space	VERB
dss-287	350	16	triplet	triplet	NOUN
dss-287	350	17	using	use	VERB
dss-287	350	18	a	a	DET
dss-287	350	19	flint	flint	ADJ
dss-287	350	20	glass	glass	NOUN
dss-287	350	21	initially	initially	ADV
dss-287	350	22	developed	develop	VERB
dss-287	350	23	for	for	ADP
dss-287	350	24	nasa	nasa	PROPN
dss-287	350	25	.	.	PUNCT
dss-287	351	1	a	a	DET
dss-287	351	2	common	common	ADJ
dss-287	351	3	structure	structure	NOUN
dss-287	351	4	involves	involve	VERB
dss-287	351	5	a	a	DET
dss-287	351	6	front	front	ADJ
dss-287	351	7	double	double	ADJ
dss-287	351	8	convex	convex	NOUN
dss-287	351	9	crown	crown	NOUN
dss-287	351	10	,	,	PUNCT
dss-287	351	11	a	a	DET
dss-287	351	12	middle	middle	ADJ
dss-287	351	13	negative	negative	ADJ
dss-287	351	14	flint	flint	NOUN
dss-287	351	15	,	,	PUNCT
dss-287	351	16	and	and	CCONJ
dss-287	351	17	a	a	DET
dss-287	351	18	rear	rear	ADJ
dss-287	351	19	double	double	ADJ
dss-287	351	20	convex	convex	NOUN
dss-287	351	21	flint	flint	NOUN
dss-287	351	22	[	[	X
dss-287	351	23	155	155	NUM
dss-287	351	24	]	]	PUNCT
dss-287	351	25	.	.	PUNCT
dss-287	352	1	dss	dss	NOUN
dss-287	352	2	vol	vol	NOUN
dss-287	352	3	.	.	PROPN
dss-287	353	1	6	6	NUM
dss-287	353	2	,	,	PUNCT
dss-287	353	3	no	no	INTJ
dss-287	353	4	.	.	NOUN
dss-287	353	5	1	1	NUM
dss-287	353	6	,	,	PUNCT
dss-287	353	7	2025	2025	NUM
dss-287	353	8	,	,	PUNCT
dss-287	353	9	pp.49	pp.49	NOUN
dss-287	353	10	-	-	SYM
dss-287	353	11	90	90	NUM
dss-287	353	12	60	60	NUM
dss-287	353	13	fig	fig	NOUN
dss-287	353	14	.	.	PUNCT
dss-287	354	1	3	3	NUM
dss-287	354	2	scheme	scheme	NOUN
dss-287	354	3	of	of	ADP
dss-287	354	4	refracting	refract	VERB
dss-287	354	5	apochromatic	apochromatic	ADJ
dss-287	354	6	designs	design	NOUN
dss-287	354	7	(	(	PUNCT
dss-287	354	8	petzval	petzval	NOUN
dss-287	354	9	,	,	PUNCT
dss-287	354	10	cooke	cooke	PROPN
dss-287	354	11	,	,	PUNCT
dss-287	354	12	takahashi	takahashi	PROPN
dss-287	354	13	)	)	PUNCT
dss-287	355	1	[	[	X
dss-287	355	2	155	155	NUM
dss-287	355	3	]	]	SYM
dss-287	355	4	4.2	4.2	NUM
dss-287	355	5	tube	tube	NOUN
dss-287	355	6	assembly	assembly	NOUN
dss-287	355	7	the	the	DET
dss-287	355	8	telescope	telescope	NOUN
dss-287	355	9	tube	tube	NOUN
dss-287	355	10	aligns	align	VERB
dss-287	355	11	the	the	DET
dss-287	355	12	optical	optical	ADJ
dss-287	355	13	components	component	NOUN
dss-287	355	14	and	and	CCONJ
dss-287	355	15	shields	shield	VERB
dss-287	355	16	them	they	PRON
dss-287	355	17	from	from	ADP
dss-287	355	18	stray	stray	ADJ
dss-287	355	19	light	light	NOUN
dss-287	355	20	.	.	PUNCT
dss-287	356	1	its	its	PRON
dss-287	356	2	length	length	NOUN
dss-287	356	3	approximates	approximate	VERB
dss-287	356	4	the	the	DET
dss-287	356	5	focal	focal	ADJ
dss-287	356	6	length	length	NOUN
dss-287	356	7	of	of	ADP
dss-287	356	8	the	the	DET
dss-287	356	9	objective	objective	ADJ
dss-287	356	10	lens	len	NOUN
dss-287	356	11	,	,	PUNCT
dss-287	356	12	though	though	SCONJ
dss-287	356	13	baffles	baffle	NOUN
dss-287	356	14	and	and	CCONJ
dss-287	356	15	coatings	coating	NOUN
dss-287	356	16	are	be	AUX
dss-287	356	17	added	add	VERB
dss-287	356	18	to	to	PART
dss-287	356	19	reduce	reduce	VERB
dss-287	356	20	internal	internal	ADJ
dss-287	356	21	reflections	reflection	NOUN
dss-287	356	22	[	[	X
dss-287	356	23	52	52	NUM
dss-287	356	24	]	]	PUNCT
dss-287	356	25	.	.	PUNCT
dss-287	357	1	materials	material	NOUN
dss-287	357	2	like	like	ADP
dss-287	357	3	aluminum	aluminum	NOUN
dss-287	357	4	or	or	CCONJ
dss-287	357	5	carbon	carbon	NOUN
dss-287	357	6	fiber	fiber	NOUN
dss-287	357	7	are	be	AUX
dss-287	357	8	chosen	choose	VERB
dss-287	357	9	for	for	ADP
dss-287	357	10	their	their	PRON
dss-287	357	11	rigidity	rigidity	NOUN
dss-287	357	12	and	and	CCONJ
dss-287	357	13	low	low	ADJ
dss-287	357	14	thermal	thermal	ADJ
dss-287	357	15	expansion	expansion	NOUN
dss-287	357	16	,	,	PUNCT
dss-287	357	17	ensuring	ensure	VERB
dss-287	357	18	optical	optical	ADJ
dss-287	357	19	stability	stability	NOUN
dss-287	357	20	across	across	ADP
dss-287	357	21	temperature	temperature	NOUN
dss-287	357	22	variations	variation	NOUN
dss-287	357	23	.	.	PUNCT
dss-287	358	1	4.3	4.3	NUM
dss-287	358	2	focuser	focuser	NOUN
dss-287	358	3	and	and	CCONJ
dss-287	358	4	eyepiece	eyepiece	NOUN
dss-287	358	5	the	the	DET
dss-287	358	6	focuser	focuser	NOUN
dss-287	358	7	adjusts	adjust	VERB
dss-287	358	8	the	the	DET
dss-287	358	9	eyepiece	eyepiece	NOUN
dss-287	358	10	position	position	NOUN
dss-287	358	11	to	to	PART
dss-287	358	12	achieve	achieve	VERB
dss-287	358	13	sharp	sharp	ADJ
dss-287	358	14	focus	focus	NOUN
dss-287	358	15	,	,	PUNCT
dss-287	358	16	typically	typically	ADV
dss-287	358	17	using	use	VERB
dss-287	358	18	a	a	DET
dss-287	358	19	rack	rack	VERB
dss-287	358	20	-	-	PUNCT
dss-287	358	21	and	and	CCONJ
dss-287	358	22	-	-	PUNCT
dss-287	358	23	pinion	pinion	NOUN
dss-287	358	24	or	or	CCONJ
dss-287	358	25	crayford	crayford	NOUN
dss-287	358	26	mechanism	mechanism	NOUN
dss-287	358	27	for	for	ADP
dss-287	358	28	precision	precision	NOUN
dss-287	358	29	.	.	PUNCT
dss-287	359	1	the	the	DET
dss-287	359	2	eyepiece	eyepiece	PROPN
dss-287	359	3	,	,	PUNCT
dss-287	359	4	a	a	DET
dss-287	359	5	secondary	secondary	ADJ
dss-287	359	6	lens	lens	NOUN
dss-287	359	7	system	system	NOUN
dss-287	359	8	,	,	PUNCT
dss-287	359	9	magnifies	magnify	VERB
dss-287	359	10	the	the	DET
dss-287	359	11	image	image	NOUN
dss-287	359	12	formed	form	VERB
dss-287	359	13	by	by	ADP
dss-287	359	14	the	the	DET
dss-287	359	15	objective	objective	NOUN
dss-287	359	16	.	.	PUNCT
dss-287	360	1	common	common	ADJ
dss-287	360	2	designs	design	NOUN
dss-287	360	3	include	include	VERB
dss-287	360	4	huygens	huygen	NOUN
dss-287	360	5	,	,	PUNCT
dss-287	360	6	kellner	kellner	PROPN
dss-287	360	7	,	,	PUNCT
dss-287	360	8	and	and	CCONJ
dss-287	360	9	plössl	plössl	ADJ
dss-287	360	10	eyepieces	eyepiece	NOUN
dss-287	360	11	,	,	PUNCT
dss-287	360	12	each	each	PRON
dss-287	360	13	offering	offer	VERB
dss-287	360	14	trade	trade	NOUN
dss-287	360	15	-	-	PUNCT
dss-287	360	16	offs	off	NOUN
dss-287	360	17	in	in	ADP
dss-287	360	18	field	field	NOUN
dss-287	360	19	of	of	ADP
dss-287	360	20	view	view	NOUN
dss-287	360	21	and	and	CCONJ
dss-287	360	22	eye	eye	NOUN
dss-287	360	23	relief	relief	NOUN
dss-287	360	24	.	.	PUNCT
dss-287	361	1	the	the	DET
dss-287	361	2	choice	choice	NOUN
dss-287	361	3	of	of	ADP
dss-287	361	4	eyepiece	eyepiece	NOUN
dss-287	361	5	depends	depend	VERB
dss-287	361	6	on	on	ADP
dss-287	361	7	the	the	DET
dss-287	361	8	intended	intend	VERB
dss-287	361	9	application	application	NOUN
dss-287	361	10	,	,	PUNCT
dss-287	361	11	with	with	ADP
dss-287	361	12	wider	wide	ADJ
dss-287	361	13	fields	field	NOUN
dss-287	361	14	preferred	prefer	VERB
dss-287	361	15	for	for	ADP
dss-287	361	16	deep	deep	ADJ
dss-287	361	17	-	-	PUNCT
dss-287	361	18	sky	sky	NOUN
dss-287	361	19	observation	observation	NOUN
dss-287	361	20	[	[	X
dss-287	361	21	53	53	NUM
dss-287	361	22	]	]	PUNCT
dss-287	361	23	.	.	PUNCT
dss-287	362	1	eyepieces	eyepiece	NOUN
dss-287	362	2	are	be	AUX
dss-287	362	3	usually	usually	ADV
dss-287	362	4	sold	sell	VERB
dss-287	362	5	separately	separately	ADV
dss-287	362	6	and	and	CCONJ
dss-287	362	7	on	on	ADP
dss-287	362	8	the	the	DET
dss-287	362	9	market	market	NOUN
dss-287	362	10	variety	variety	NOUN
dss-287	362	11	exists	exist	VERB
dss-287	362	12	.	.	PUNCT
dss-287	363	1	dss	dss	NOUN
dss-287	363	2	vol	vol	NOUN
dss-287	363	3	.	.	PROPN
dss-287	364	1	6	6	NUM
dss-287	364	2	,	,	PUNCT
dss-287	364	3	no	no	INTJ
dss-287	364	4	.	.	NOUN
dss-287	364	5	1	1	NUM
dss-287	364	6	,	,	PUNCT
dss-287	364	7	2025	2025	NUM
dss-287	364	8	,	,	PUNCT
dss-287	364	9	pp.49	pp.49	NOUN
dss-287	364	10	-	-	SYM
dss-287	364	11	90	90	NUM
dss-287	364	12	61	61	NUM
dss-287	364	13	4.4	4.4	NUM
dss-287	364	14	testing	testing	NOUN
dss-287	364	15	and	and	CCONJ
dss-287	364	16	optimization	optimization	NOUN
dss-287	364	17	optical	optical	ADJ
dss-287	364	18	testing	testing	NOUN
dss-287	364	19	,	,	PUNCT
dss-287	364	20	such	such	ADJ
dss-287	364	21	as	as	ADP
dss-287	364	22	the	the	DET
dss-287	364	23	ronchi	ronchi	PROPN
dss-287	364	24	or	or	CCONJ
dss-287	364	25	foucault	foucault	PROPN
dss-287	364	26	test	test	NOUN
dss-287	364	27	,	,	PUNCT
dss-287	364	28	evaluates	evaluate	VERB
dss-287	364	29	lens	lens	NOUN
dss-287	364	30	quality	quality	NOUN
dss-287	364	31	by	by	ADP
dss-287	364	32	analysing	analyse	VERB
dss-287	364	33	interference	interference	NOUN
dss-287	364	34	patterns	pattern	NOUN
dss-287	364	35	or	or	CCONJ
dss-287	364	36	knife	knife	NOUN
dss-287	364	37	-	-	PUNCT
dss-287	364	38	edge	edge	NOUN
dss-287	364	39	shadows	shadow	NOUN
dss-287	364	40	[	[	X
dss-287	364	41	54	54	NUM
dss-287	364	42	]	]	PUNCT
dss-287	364	43	.	.	PUNCT
dss-287	365	1	computer	computer	NOUN
dss-287	365	2	-	-	PUNCT
dss-287	365	3	aided	aid	VERB
dss-287	365	4	design	design	NOUN
dss-287	365	5	(	(	PUNCT
dss-287	365	6	cad	cad	NOUN
dss-287	365	7	)	)	PUNCT
dss-287	365	8	software	software	NOUN
dss-287	365	9	,	,	PUNCT
dss-287	365	10	like	like	ADP
dss-287	365	11	zemax	zemax	NOUN
dss-287	365	12	,	,	PUNCT
dss-287	365	13	simulates	simulate	VERB
dss-287	365	14	light	light	ADJ
dss-287	365	15	paths	path	NOUN
dss-287	365	16	to	to	PART
dss-287	365	17	optimize	optimize	VERB
dss-287	365	18	lens	lens	NOUN
dss-287	365	19	spacing	spacing	NOUN
dss-287	365	20	and	and	CCONJ
dss-287	365	21	coatings	coating	NOUN
dss-287	365	22	,	,	PUNCT
dss-287	365	23	enhancing	enhance	VERB
dss-287	365	24	transmission	transmission	NOUN
dss-287	365	25	and	and	CCONJ
dss-287	365	26	contrast	contrast	NOUN
dss-287	365	27	[	[	X
dss-287	365	28	55	55	NUM
dss-287	365	29	]	]	PUNCT
dss-287	365	30	.	.	PUNCT
dss-287	366	1	4.5	4.5	NUM
dss-287	366	2	applications	application	NOUN
dss-287	366	3	refractor	refractor	NOUN
dss-287	366	4	telescopes	telescope	NOUN
dss-287	366	5	serve	serve	VERB
dss-287	366	6	diverse	diverse	ADJ
dss-287	366	7	purposes	purpose	NOUN
dss-287	366	8	in	in	ADP
dss-287	366	9	both	both	CCONJ
dss-287	366	10	professional	professional	ADJ
dss-287	366	11	and	and	CCONJ
dss-287	366	12	amateur	amateur	ADJ
dss-287	366	13	contexts	contexts	NOUN
dss-287	366	14	.	.	PUNCT
dss-287	367	1	in	in	ADP
dss-287	367	2	astronomy	astronomy	NOUN
dss-287	367	3	,	,	PUNCT
dss-287	367	4	their	their	PRON
dss-287	367	5	high	high	ADJ
dss-287	367	6	contrast	contrast	NOUN
dss-287	367	7	and	and	CCONJ
dss-287	367	8	sharp	sharp	ADJ
dss-287	367	9	imaging	imaging	NOUN
dss-287	367	10	make	make	VERB
dss-287	367	11	them	they	PRON
dss-287	367	12	ideal	ideal	ADJ
dss-287	367	13	for	for	ADP
dss-287	367	14	observing	observe	VERB
dss-287	367	15	planets	planet	NOUN
dss-287	367	16	,	,	PUNCT
dss-287	367	17	double	double	ADJ
dss-287	367	18	stars	star	NOUN
dss-287	367	19	,	,	PUNCT
dss-287	367	20	and	and	CCONJ
dss-287	367	21	lunar	lunar	ADJ
dss-287	367	22	details	detail	NOUN
dss-287	367	23	.	.	PUNCT
dss-287	368	1	the	the	DET
dss-287	368	2	apochromatic	apochromatic	ADJ
dss-287	368	3	refractors	refractor	NOUN
dss-287	368	4	used	use	VERB
dss-287	368	5	in	in	ADP
dss-287	368	6	observatories	observatory	NOUN
dss-287	368	7	,	,	PUNCT
dss-287	368	8	such	such	ADJ
dss-287	368	9	as	as	ADP
dss-287	368	10	the	the	DET
dss-287	368	11	1	1	NUM
dss-287	368	12	-	-	PUNCT
dss-287	368	13	meter	meter	NOUN
dss-287	368	14	refractor	refractor	NOUN
dss-287	368	15	at	at	ADP
dss-287	368	16	yerkes	yerke	NOUN
dss-287	368	17	observatory	observatory	ADJ
dss-287	368	18	,	,	PUNCT
dss-287	368	19	exemplify	exemplify	VERB
dss-287	368	20	their	their	PRON
dss-287	368	21	precision	precision	NOUN
dss-287	368	22	for	for	ADP
dss-287	368	23	stellar	stellar	ADJ
dss-287	368	24	spectroscopy	spectroscopy	NOUN
dss-287	368	25	and	and	CCONJ
dss-287	368	26	astrophotography	astrophotography	NOUN
dss-287	368	27	.	.	PUNCT
dss-287	369	1	beyond	beyond	ADP
dss-287	369	2	astronomy	astronomy	NOUN
dss-287	369	3	,	,	PUNCT
dss-287	369	4	refractors	refractor	NOUN
dss-287	369	5	are	be	AUX
dss-287	369	6	employed	employ	VERB
dss-287	369	7	in	in	ADP
dss-287	369	8	terrestrial	terrestrial	ADJ
dss-287	369	9	observation	observation	NOUN
dss-287	369	10	,	,	PUNCT
dss-287	369	11	such	such	ADJ
dss-287	369	12	as	as	ADP
dss-287	369	13	wildlife	wildlife	NOUN
dss-287	369	14	monitoring	monitoring	NOUN
dss-287	369	15	,	,	PUNCT
dss-287	369	16	due	due	ADP
dss-287	369	17	to	to	ADP
dss-287	369	18	their	their	PRON
dss-287	369	19	portability	portability	NOUN
dss-287	369	20	and	and	CCONJ
dss-287	369	21	upright	upright	ADJ
dss-287	369	22	image	image	NOUN
dss-287	369	23	orientation	orientation	NOUN
dss-287	369	24	(	(	PUNCT
dss-287	369	25	with	with	ADP
dss-287	369	26	a	a	DET
dss-287	369	27	diagonal	diagonal	ADJ
dss-287	369	28	prism	prism	NOUN
dss-287	369	29	)	)	PUNCT
dss-287	369	30	.	.	PUNCT
dss-287	370	1	in	in	ADP
dss-287	370	2	education	education	NOUN
dss-287	370	3	,	,	PUNCT
dss-287	370	4	small	small	ADJ
dss-287	370	5	refractors	refractor	NOUN
dss-287	370	6	introduce	introduce	VERB
dss-287	370	7	students	student	NOUN
dss-287	370	8	to	to	ADP
dss-287	370	9	optics	optic	NOUN
dss-287	370	10	and	and	CCONJ
dss-287	370	11	celestial	celestial	ADJ
dss-287	370	12	navigation	navigation	NOUN
dss-287	370	13	,	,	PUNCT
dss-287	370	14	while	while	SCONJ
dss-287	370	15	in	in	ADP
dss-287	370	16	research	research	NOUN
dss-287	370	17	,	,	PUNCT
dss-287	370	18	they	they	PRON
dss-287	370	19	contribute	contribute	VERB
dss-287	370	20	to	to	ADP
dss-287	370	21	studies	study	NOUN
dss-287	370	22	of	of	ADP
dss-287	370	23	atmospheric	atmospheric	ADJ
dss-287	370	24	optics	optic	NOUN
dss-287	370	25	and	and	CCONJ
dss-287	370	26	light	light	ADJ
dss-287	370	27	pollution	pollution	NOUN
dss-287	370	28	.	.	PUNCT
dss-287	371	1	their	their	PRON
dss-287	371	2	versatility	versatility	NOUN
dss-287	371	3	is	be	AUX
dss-287	371	4	enhanced	enhance	VERB
dss-287	371	5	by	by	ADP
dss-287	371	6	modern	modern	ADJ
dss-287	371	7	adaptations	adaptation	NOUN
dss-287	371	8	,	,	PUNCT
dss-287	371	9	including	include	VERB
dss-287	371	10	digital	digital	ADJ
dss-287	371	11	sensors	sensor	NOUN
dss-287	371	12	for	for	ADP
dss-287	371	13	real	real	ADJ
dss-287	371	14	-	-	PUNCT
dss-287	371	15	time	time	NOUN
dss-287	371	16	imaging	imaging	NOUN
dss-287	371	17	.	.	PUNCT
dss-287	372	1	refractor	refractor	NOUN
dss-287	372	2	telescopes	telescope	NOUN
dss-287	372	3	remain	remain	VERB
dss-287	372	4	a	a	DET
dss-287	372	5	cornerstone	cornerstone	NOUN
dss-287	372	6	of	of	ADP
dss-287	372	7	optical	optical	ADJ
dss-287	372	8	technology	technology	NOUN
dss-287	372	9	,	,	PUNCT
dss-287	372	10	blending	blend	VERB
dss-287	372	11	historical	historical	ADJ
dss-287	372	12	significance	significance	NOUN
dss-287	372	13	with	with	ADP
dss-287	372	14	modern	modern	ADJ
dss-287	372	15	innovation	innovation	NOUN
dss-287	372	16	.	.	PUNCT
dss-287	373	1	their	their	PRON
dss-287	373	2	design	design	NOUN
dss-287	373	3	,	,	PUNCT
dss-287	373	4	rooted	root	VERB
dss-287	373	5	in	in	ADP
dss-287	373	6	the	the	DET
dss-287	373	7	precise	precise	ADJ
dss-287	373	8	manipulation	manipulation	NOUN
dss-287	373	9	of	of	ADP
dss-287	373	10	light	light	NOUN
dss-287	373	11	through	through	ADP
dss-287	373	12	lenses	lense	NOUN
dss-287	373	13	,	,	PUNCT
dss-287	373	14	has	have	AUX
dss-287	373	15	evolved	evolve	VERB
dss-287	373	16	from	from	ADP
dss-287	373	17	simple	simple	ADJ
dss-287	373	18	galilean	galilean	PROPN
dss-287	373	19	instruments	instrument	NOUN
dss-287	373	20	to	to	ADP
dss-287	373	21	sophisticated	sophisticated	ADJ
dss-287	373	22	apochromatic	apochromatic	ADJ
dss-287	373	23	systems	system	NOUN
dss-287	373	24	capable	capable	ADJ
dss-287	373	25	of	of	ADP
dss-287	373	26	high	high	ADJ
dss-287	373	27	-	-	PUNCT
dss-287	373	28	resolution	resolution	NOUN
dss-287	373	29	imaging	imaging	NOUN
dss-287	373	30	.	.	PUNCT
dss-287	374	1	the	the	DET
dss-287	374	2	methods	method	NOUN
dss-287	374	3	of	of	ADP
dss-287	374	4	design	design	NOUN
dss-287	374	5	combining	combine	VERB
dss-287	374	6	advanced	advanced	ADJ
dss-287	374	7	lens	len	NOUN
dss-287	374	8	crafting	craft	VERB
dss-287	374	9	,	,	PUNCT
dss-287	374	10	robust	robust	ADJ
dss-287	374	11	mechanical	mechanical	ADJ
dss-287	374	12	engineering	engineering	NOUN
dss-287	374	13	,	,	PUNCT
dss-287	374	14	and	and	CCONJ
dss-287	374	15	optical	optical	ADJ
dss-287	374	16	testing	testing	NOUN
dss-287	374	17	ensure	ensure	VERB
dss-287	374	18	their	their	PRON
dss-287	374	19	continued	continued	ADJ
dss-287	374	20	relevance	relevance	NOUN
dss-287	374	21	.	.	PUNCT
dss-287	375	1	while	while	SCONJ
dss-287	375	2	reflecting	reflect	VERB
dss-287	375	3	telescopes	telescope	NOUN
dss-287	375	4	dominate	dominate	VERB
dss-287	375	5	large	large	ADJ
dss-287	375	6	-	-	PUNCT
dss-287	375	7	scale	scale	NOUN
dss-287	375	8	astronomy	astronomy	NOUN
dss-287	375	9	due	due	ADP
dss-287	375	10	to	to	ADP
dss-287	375	11	their	their	PRON
dss-287	375	12	scalability	scalability	NOUN
dss-287	375	13	,	,	PUNCT
dss-287	375	14	refractors	refractor	NOUN
dss-287	375	15	excel	excel	VERB
dss-287	375	16	in	in	ADP
dss-287	375	17	clarity	clarity	NOUN
dss-287	375	18	and	and	CCONJ
dss-287	375	19	contrast	contrast	NOUN
dss-287	375	20	for	for	ADP
dss-287	375	21	smaller	small	ADJ
dss-287	375	22	apertures	aperture	NOUN
dss-287	375	23	.	.	PUNCT
dss-287	376	1	future	future	ADJ
dss-287	376	2	advancements	advancement	NOUN
dss-287	376	3	may	may	AUX
dss-287	376	4	integrate	integrate	VERB
dss-287	376	5	adaptive	adaptive	ADJ
dss-287	376	6	optics	optic	NOUN
dss-287	376	7	and	and	CCONJ
dss-287	376	8	ai	ai	AUX
dss-287	376	9	-	-	PUNCT
dss-287	376	10	driven	drive	VERB
dss-287	376	11	image	image	NOUN
dss-287	376	12	processing	processing	NOUN
dss-287	376	13	,	,	PUNCT
dss-287	376	14	further	far	ADV
dss-287	376	15	expanding	expand	VERB
dss-287	376	16	their	their	PRON
dss-287	376	17	capabilities	capability	NOUN
dss-287	376	18	.	.	PUNCT
dss-287	377	1	4.6	4.6	NUM
dss-287	377	2	technical	technical	ADJ
dss-287	377	3	considerations	consideration	NOUN
dss-287	377	4	refractors	refractor	NOUN
dss-287	377	5	suffer	suffer	VERB
dss-287	377	6	from	from	ADP
dss-287	377	7	residual	residual	ADJ
dss-287	377	8	chromatic	chromatic	ADJ
dss-287	377	9	and	and	CCONJ
dss-287	377	10	spherical	spherical	ADJ
dss-287	377	11	aberration	aberration	NOUN
dss-287	377	12	.	.	PUNCT
dss-287	378	1	this	this	PRON
dss-287	378	2	affects	affect	VERB
dss-287	378	3	shorter	short	ADJ
dss-287	378	4	focal	focal	ADJ
dss-287	378	5	ratios	ratio	NOUN
dss-287	378	6	more	more	ADJ
dss-287	378	7	than	than	ADP
dss-287	378	8	longer	long	ADJ
dss-287	378	9	ones	one	NOUN
dss-287	378	10	.	.	PUNCT
dss-287	379	1	an	an	DET
dss-287	379	2	f/6	f/6	NUM
dss-287	379	3	achromatic	achromatic	ADJ
dss-287	379	4	refractor	refractor	NOUN
dss-287	379	5	is	be	AUX
dss-287	379	6	likely	likely	ADJ
dss-287	379	7	to	to	PART
dss-287	379	8	show	show	VERB
dss-287	379	9	considerable	considerable	ADJ
dss-287	379	10	color	color	NOUN
dss-287	379	11	fringing	fringing	NOUN
dss-287	379	12	(	(	PUNCT
dss-287	379	13	a	a	DET
dss-287	379	14	purple	purple	ADJ
dss-287	379	15	halo	halo	NOUN
dss-287	379	16	around	around	ADP
dss-287	379	17	bright	bright	ADJ
dss-287	379	18	objects	object	NOUN
dss-287	379	19	)	)	PUNCT
dss-287	379	20	;	;	PUNCT
dss-287	379	21	an	an	DET
dss-287	379	22	f/16	f/16	PROPN
dss-287	379	23	achromat	achromat	NOUN
dss-287	379	24	has	have	VERB
dss-287	379	25	much	much	ADV
dss-287	379	26	less	less	ADJ
dss-287	379	27	color	color	NOUN
dss-287	379	28	fringing	fringing	NOUN
dss-287	379	29	.	.	PUNCT
dss-287	380	1	in	in	ADP
dss-287	380	2	very	very	ADV
dss-287	380	3	large	large	ADJ
dss-287	380	4	apertures	aperture	NOUN
dss-287	380	5	,	,	PUNCT
dss-287	380	6	there	there	PRON
dss-287	380	7	is	be	VERB
dss-287	380	8	also	also	ADV
dss-287	380	9	a	a	DET
dss-287	380	10	problem	problem	NOUN
dss-287	380	11	of	of	ADP
dss-287	380	12	lens	lens	NOUN
dss-287	380	13	sagging	sag	VERB
dss-287	380	14	,	,	PUNCT
dss-287	380	15	a	a	DET
dss-287	380	16	result	result	NOUN
dss-287	380	17	of	of	ADP
dss-287	380	18	gravity	gravity	NOUN
dss-287	380	19	deforming	deform	VERB
dss-287	380	20	glass	glass	NOUN
dss-287	380	21	.	.	PUNCT
dss-287	381	1	since	since	SCONJ
dss-287	381	2	a	a	DET
dss-287	381	3	lens	lens	NOUN
dss-287	381	4	can	can	AUX
dss-287	381	5	only	only	ADV
dss-287	381	6	be	be	AUX
dss-287	381	7	held	hold	VERB
dss-287	381	8	in	in	ADP
dss-287	381	9	place	place	NOUN
dss-287	381	10	by	by	ADP
dss-287	381	11	its	its	PRON
dss-287	381	12	edge	edge	NOUN
dss-287	381	13	,	,	PUNCT
dss-287	381	14	the	the	DET
dss-287	381	15	center	center	NOUN
dss-287	381	16	of	of	ADP
dss-287	381	17	a	a	DET
dss-287	381	18	large	large	ADJ
dss-287	381	19	lens	lens	NOUN
dss-287	381	20	sags	sag	NOUN
dss-287	381	21	due	due	ADJ
dss-287	381	22	to	to	ADP
dss-287	381	23	gravity	gravity	NOUN
dss-287	381	24	,	,	PUNCT
dss-287	381	25	distorting	distort	VERB
dss-287	381	26	the	the	DET
dss-287	381	27	images	image	NOUN
dss-287	381	28	it	it	PRON
dss-287	381	29	produces	produce	VERB
dss-287	381	30	.	.	PUNCT
dss-287	382	1	the	the	DET
dss-287	382	2	largest	large	ADJ
dss-287	382	3	practical	practical	ADJ
dss-287	382	4	lens	lens	NOUN
dss-287	382	5	size	size	NOUN
dss-287	382	6	in	in	ADP
dss-287	382	7	a	a	DET
dss-287	382	8	refracting	refracting	NOUN
dss-287	382	9	telescope	telescope	NOUN
dss-287	382	10	is	be	AUX
dss-287	382	11	around	around	ADV
dss-287	382	12	1	1	NUM
dss-287	382	13	meter	meter	NOUN
dss-287	382	14	.	.	PUNCT
dss-287	383	1	there	there	PRON
dss-287	383	2	is	be	VERB
dss-287	383	3	a	a	DET
dss-287	383	4	further	further	ADJ
dss-287	383	5	problem	problem	NOUN
dss-287	383	6	of	of	ADP
dss-287	383	7	glass	glass	NOUN
dss-287	383	8	defects	defect	NOUN
dss-287	383	9	,	,	PUNCT
dss-287	383	10	striae	striae	NOUN
dss-287	383	11	or	or	CCONJ
dss-287	383	12	small	small	ADJ
dss-287	383	13	air	air	NOUN
dss-287	383	14	bubbles	bubble	NOUN
dss-287	383	15	trapped	trap	VERB
dss-287	383	16	within	within	ADP
dss-287	383	17	the	the	DET
dss-287	383	18	glass	glass	NOUN
dss-287	383	19	.	.	PUNCT
dss-287	384	1	in	in	ADP
dss-287	384	2	addition	addition	NOUN
dss-287	384	3	,	,	PUNCT
dss-287	384	4	glass	glass	NOUN
dss-287	384	5	is	be	AUX
dss-287	384	6	opaque	opaque	ADJ
dss-287	384	7	to	to	ADP
dss-287	384	8	certain	certain	ADJ
dss-287	384	9	wavelengths	wavelength	NOUN
dss-287	384	10	,	,	PUNCT
dss-287	384	11	and	and	CCONJ
dss-287	384	12	even	even	ADV
dss-287	384	13	visible	visible	ADJ
dss-287	384	14	light	light	NOUN
dss-287	384	15	is	be	AUX
dss-287	384	16	dimmed	dim	VERB
dss-287	384	17	by	by	ADP
dss-287	384	18	reflection	reflection	NOUN
dss-287	384	19	and	and	CCONJ
dss-287	384	20	absorption	absorption	NOUN
dss-287	384	21	when	when	SCONJ
dss-287	384	22	it	it	PRON
dss-287	384	23	crosses	cross	VERB
dss-287	384	24	the	the	DET
dss-287	384	25	air	air	NOUN
dss-287	384	26	-	-	PUNCT
dss-287	384	27	glass	glass	NOUN
dss-287	384	28	interfaces	interface	NOUN
dss-287	384	29	and	and	CCONJ
dss-287	384	30	passes	pass	VERB
dss-287	384	31	through	through	ADP
dss-287	384	32	the	the	DET
dss-287	384	33	glass	glass	NOUN
dss-287	384	34	itself	itself	PRON
dss-287	384	35	.	.	PUNCT
dss-287	385	1	most	most	ADJ
dss-287	385	2	of	of	ADP
dss-287	385	3	these	these	DET
dss-287	385	4	problems	problem	NOUN
dss-287	385	5	are	be	AUX
dss-287	385	6	avoided	avoid	VERB
dss-287	385	7	or	or	CCONJ
dss-287	385	8	diminished	diminish	VERB
dss-287	385	9	in	in	ADP
dss-287	385	10	reflecting	reflect	VERB
dss-287	385	11	telescopes	telescope	NOUN
dss-287	385	12	,	,	PUNCT
dss-287	385	13	which	which	PRON
dss-287	385	14	can	can	AUX
dss-287	385	15	be	be	AUX
dss-287	385	16	made	make	VERB
dss-287	385	17	in	in	ADP
dss-287	385	18	far	far	ADV
dss-287	385	19	larger	large	ADJ
dss-287	385	20	apertures	aperture	NOUN
dss-287	385	21	and	and	CCONJ
dss-287	385	22	which	which	PRON
dss-287	385	23	have	have	AUX
dss-287	385	24	all	all	ADV
dss-287	385	25	but	but	ADV
dss-287	385	26	replaced	replace	VERB
dss-287	385	27	refractors	refractor	NOUN
dss-287	385	28	for	for	ADP
dss-287	385	29	astronomical	astronomical	ADJ
dss-287	385	30	research	research	NOUN
dss-287	385	31	.	.	PUNCT
dss-287	386	1	examples	example	NOUN
dss-287	386	2	of	of	ADP
dss-287	386	3	the	the	DET
dss-287	386	4	largest	large	ADJ
dss-287	386	5	achromatic	achromatic	ADJ
dss-287	386	6	refracting	refracting	NOUN
dss-287	386	7	telescopes	telescope	NOUN
dss-287	386	8	are	be	AUX
dss-287	386	9	:	:	PUNCT
dss-287	386	10	great	great	ADJ
dss-287	386	11	paris	paris	PROPN
dss-287	386	12	exhibition	exhibition	NOUN
dss-287	386	13	telescope	telescope	NOUN
dss-287	386	14	of	of	ADP
dss-287	386	15	1900	1900	NUM
dss-287	386	16	(	(	PUNCT
dss-287	386	17	1.25	1.25	NUM
dss-287	386	18	m	m	NOUN
dss-287	386	19	)	)	PUNCT
dss-287	386	20	dismantled	dismantle	VERB
dss-287	386	21	after	after	ADP
dss-287	386	22	exhibition	exhibition	NOUN
dss-287	386	23	,	,	PUNCT
dss-287	386	24	yerkes	yerke	NOUN
dss-287	386	25	observatory	observatory	NOUN
dss-287	386	26	(	(	PUNCT
dss-287	386	27	101.6	101.6	NUM
dss-287	386	28	cm	cm	NOUN
dss-287	386	29	)	)	PUNCT
dss-287	386	30	,	,	PUNCT
dss-287	386	31	swedish	swedish	ADJ
dss-287	386	32	1	1	NUM
dss-287	386	33	-	-	PUNCT
dss-287	386	34	m	m	NOUN
dss-287	386	35	solar	solar	ADJ
dss-287	386	36	telescope	telescope	NOUN
dss-287	386	37	(	(	PUNCT
dss-287	386	38	98	98	NUM
dss-287	386	39	cm	cm	NOUN
dss-287	386	40	)	)	PUNCT
dss-287	386	41	,	,	PUNCT
dss-287	386	42	lick	lick	NOUN
dss-287	386	43	observatory	observatory	NOUN
dss-287	386	44	(	(	PUNCT
dss-287	386	45	91	91	NUM
dss-287	386	46	cm	cm	NOUN
dss-287	386	47	)	)	PUNCT
dss-287	386	48	,	,	PUNCT
dss-287	386	49	paris	paris	PROPN
dss-287	386	50	observatory	observatory	NOUN
dss-287	386	51	meudon	meudon	VERB
dss-287	386	52	great	great	ADJ
dss-287	386	53	refractor	refractor	NOUN
dss-287	386	54	(	(	PUNCT
dss-287	386	55	83	83	NUM
dss-287	386	56	cm	cm	NOUN
dss-287	386	57	)	)	PUNCT
dss-287	386	58	,	,	PUNCT
dss-287	386	59	potsdam	potsdam	PROPN
dss-287	386	60	great	great	ADJ
dss-287	386	61	refractor	refractor	NOUN
dss-287	386	62	(	(	PUNCT
dss-287	386	63	80	80	NUM
dss-287	386	64	cm	cm	NOUN
dss-287	386	65	)	)	PUNCT
dss-287	386	66	,	,	PUNCT
dss-287	386	67	nice	nice	ADJ
dss-287	386	68	observatory	observatory	NOUN
dss-287	386	69	(	(	PUNCT
dss-287	386	70	77	77	NUM
dss-287	386	71	cm	cm	NOUN
dss-287	386	72	)	)	PUNCT
dss-287	386	73	,	,	PUNCT
dss-287	386	74	john	john	PROPN
dss-287	386	75	wall	wall	PROPN
dss-287	386	76	(	(	PUNCT
dss-287	386	77	76.20	76.20	NUM
dss-287	386	78	cm	cm	NOUN
dss-287	386	79	)	)	PUNCT
dss-287	386	80	dialyte	dialyte	NOUN
dss-287	386	81	refracting	refracting	NOUN
dss-287	386	82	telescope	telescope	NOUN
dss-287	386	83	the	the	DET
dss-287	386	84	largest	large	ADJ
dss-287	386	85	refractor	refractor	NOUN
dss-287	386	86	built	build	VERB
dss-287	386	87	by	by	ADP
dss-287	386	88	an	an	DET
dss-287	386	89	individual	individual	NOUN
dss-287	386	90	,	,	PUNCT
dss-287	386	91	at	at	ADP
dss-287	386	92	hanwell	hanwell	PROPN
dss-287	386	93	community	community	NOUN
dss-287	386	94	observatory	observatory	NOUN
dss-287	386	95	,	,	PUNCT
dss-287	386	96	28	28	NUM
dss-287	386	97	-	-	PUNCT
dss-287	386	98	inch	inch	NOUN
dss-287	386	99	grubb	grubb	PROPN
dss-287	386	100	refractor	refractor	PROPN
dss-287	386	101	at	at	ADP
dss-287	386	102	royal	royal	PROPN
dss-287	386	103	greenwich	greenwich	PROPN
dss-287	386	104	observatory	observatory	NOUN
dss-287	386	105	,	,	PUNCT
dss-287	386	106	(	(	PUNCT
dss-287	386	107	71	71	NUM
dss-287	386	108	cm	cm	NOUN
dss-287	386	109	)	)	PUNCT
dss-287	386	110	,	,	PUNCT
dss-287	386	111	great	great	ADJ
dss-287	386	112	refractor	refractor	NOUN
dss-287	386	113	of	of	ADP
dss-287	386	114	vienna	vienna	PROPN
dss-287	386	115	observatory	observatory	NOUN
dss-287	386	116	,	,	PUNCT
dss-287	386	117	(	(	PUNCT
dss-287	386	118	69	69	NUM
dss-287	386	119	cm	cm	NOUN
dss-287	386	120	)	)	PUNCT
dss-287	386	121	,	,	PUNCT
dss-287	386	122	archenhold	archenhold	ADJ
dss-287	386	123	observatory	observatory	NOUN
dss-287	386	124	–	–	PUNCT
dss-287	386	125	the	the	DET
dss-287	386	126	longest	long	ADJ
dss-287	386	127	refracting	refracting	NOUN
dss-287	386	128	telescope	telescope	NOUN
dss-287	386	129	ever	ever	ADV
dss-287	386	130	built	build	VERB
dss-287	386	131	(	(	PUNCT
dss-287	386	132	68	68	NUM
dss-287	386	133	cm	cm	NOUN
dss-287	386	134	×	×	NOUN
dss-287	386	135	21	21	NUM
dss-287	386	136	m	m	NOUN
dss-287	386	137	)	)	PUNCT
dss-287	386	138	,	,	PUNCT
dss-287	386	139	united	united	PROPN
dss-287	386	140	states	states	PROPN
dss-287	386	141	naval	naval	PROPN
dss-287	386	142	observatory	observatory	ADJ
dss-287	386	143	refractor	refractor	NOUN
dss-287	386	144	(	(	PUNCT
dss-287	386	145	66	66	NUM
dss-287	386	146	cm	cm	NOUN
dss-287	386	147	)	)	PUNCT
dss-287	386	148	,	,	PUNCT
dss-287	386	149	newall	newall	NOUN
dss-287	386	150	refractor	refractor	NOUN
dss-287	386	151	at	at	ADP
dss-287	386	152	the	the	DET
dss-287	386	153	national	national	ADJ
dss-287	386	154	observatory	observatory	NOUN
dss-287	386	155	of	of	ADP
dss-287	386	156	athens	athens	PROPN
dss-287	386	157	(	(	PUNCT
dss-287	386	158	62.5	62.5	NUM
dss-287	386	159	cm	cm	NOUN
dss-287	386	160	)	)	PUNCT
dss-287	386	161	,	,	PUNCT
dss-287	386	162	lowell	lowell	PROPN
dss-287	386	163	observatory	observatory	NOUN
dss-287	386	164	(	(	PUNCT
dss-287	386	165	61	61	NUM
dss-287	386	166	cm	cm	NOUN
dss-287	386	167	)	)	PUNCT
dss-287	386	168	.	.	PUNCT
dss-287	387	1	4.7	4.7	NUM
dss-287	387	2	image	image	NOUN
dss-287	387	3	quality	quality	NOUN
dss-287	387	4	in	in	ADP
dss-287	387	5	refracting	refracting	NOUN
dss-287	387	6	telescopes	telescope	NOUN
dss-287	387	7	a	a	DET
dss-287	387	8	single	single	ADJ
dss-287	387	9	lens	lens	NOUN
dss-287	387	10	has	have	VERB
dss-287	387	11	multiple	multiple	ADJ
dss-287	387	12	optical	optical	ADJ
dss-287	387	13	aberrations	aberration	NOUN
dss-287	387	14	,	,	PUNCT
dss-287	387	15	so	so	SCONJ
dss-287	387	16	refractor	refractor	NOUN
dss-287	387	17	objectives	objective	NOUN
dss-287	387	18	use	use	VERB
dss-287	387	19	multiple	multiple	ADJ
dss-287	387	20	elements	element	NOUN
dss-287	387	21	to	to	PART
dss-287	387	22	reduce	reduce	VERB
dss-287	387	23	them	they	PRON
dss-287	387	24	,	,	PUNCT
dss-287	387	25	especially	especially	ADV
dss-287	387	26	longitudinal	longitudinal	ADJ
dss-287	387	27	chromatic	chromatic	ADJ
dss-287	387	28	and	and	CCONJ
dss-287	387	29	spherical	spherical	ADJ
dss-287	387	30	aberration	aberration	NOUN
dss-287	387	31	.	.	PUNCT
dss-287	388	1	coma	coma	NOUN
dss-287	388	2	should	should	AUX
dss-287	388	3	also	also	ADV
dss-287	388	4	be	be	AUX
dss-287	388	5	minimized	minimize	VERB
dss-287	388	6	across	across	ADP
dss-287	388	7	a	a	DET
dss-287	388	8	wide	wide	ADJ
dss-287	388	9	field	field	NOUN
dss-287	388	10	.	.	PUNCT
dss-287	389	1	chromatic	chromatic	ADJ
dss-287	389	2	aberration	aberration	NOUN
dss-287	389	3	occurs	occur	VERB
dss-287	389	4	because	because	SCONJ
dss-287	389	5	different	different	ADJ
dss-287	389	6	wavelengths	wavelength	NOUN
dss-287	389	7	of	of	ADP
dss-287	389	8	light	light	ADJ
dss-287	389	9	refract	refract	NOUN
dss-287	389	10	differently	differently	ADV
dss-287	389	11	.	.	PUNCT
dss-287	390	1	blue	blue	ADJ
dss-287	390	2	light	light	NOUN
dss-287	390	3	focuses	focus	VERB
dss-287	390	4	closer	close	ADV
dss-287	390	5	to	to	ADP
dss-287	390	6	the	the	DET
dss-287	390	7	lens	lens	NOUN
dss-287	390	8	than	than	ADP
dss-287	390	9	green	green	ADJ
dss-287	390	10	or	or	CCONJ
dss-287	390	11	red	red	ADJ
dss-287	390	12	.	.	PUNCT
dss-287	391	1	in	in	ADP
dss-287	391	2	negative	negative	ADJ
dss-287	391	3	lenses	lense	NOUN
dss-287	391	4	,	,	PUNCT
dss-287	391	5	focal	focal	ADJ
dss-287	391	6	points	point	NOUN
dss-287	391	7	are	be	AUX
dss-287	391	8	virtual	virtual	ADJ
dss-287	391	9	and	and	CCONJ
dss-287	391	10	in	in	ADP
dss-287	391	11	front	front	NOUN
dss-287	391	12	of	of	ADP
dss-287	391	13	the	the	DET
dss-287	391	14	lens	len	NOUN
dss-287	391	15	.	.	PUNCT
dss-287	392	1	dss	dss	NOUN
dss-287	392	2	vol	vol	NOUN
dss-287	392	3	.	.	PROPN
dss-287	393	1	6	6	NUM
dss-287	393	2	,	,	PUNCT
dss-287	393	3	no	no	INTJ
dss-287	393	4	.	.	NOUN
dss-287	393	5	1	1	NUM
dss-287	393	6	,	,	PUNCT
dss-287	393	7	2025	2025	NUM
dss-287	393	8	,	,	PUNCT
dss-287	393	9	pp.49	pp.49	NOUN
dss-287	393	10	-	-	SYM
dss-287	393	11	90	90	NUM
dss-287	393	12	62	62	NUM
dss-287	393	13	achromatic	achromatic	ADJ
dss-287	393	14	correction	correction	NOUN
dss-287	393	15	uses	use	VERB
dss-287	393	16	two	two	NUM
dss-287	393	17	closely	closely	ADV
dss-287	393	18	spaced	spaced	ADJ
dss-287	393	19	lenses	lense	NOUN
dss-287	393	20	:	:	PUNCT
dss-287	393	21	a	a	DET
dss-287	393	22	positive	positive	ADJ
dss-287	393	23	crown	crown	NOUN
dss-287	393	24	glass	glass	NOUN
dss-287	393	25	lens	lens	NOUN
dss-287	393	26	(	(	PUNCT
dss-287	393	27	n	n	PROPN
dss-287	393	28	≈	≈	PROPN
dss-287	393	29	1.5	1.5	NUM
dss-287	393	30	,	,	PUNCT
dss-287	393	31	low	low	ADJ
dss-287	393	32	dispersion	dispersion	NOUN
dss-287	393	33	)	)	PUNCT
dss-287	393	34	and	and	CCONJ
dss-287	393	35	a	a	DET
dss-287	393	36	negative	negative	ADJ
dss-287	393	37	flint	flint	NOUN
dss-287	393	38	glass	glass	NOUN
dss-287	393	39	lens	lens	NOUN
dss-287	393	40	(	(	PUNCT
dss-287	393	41	n	n	PROPN
dss-287	393	42	≈	≈	PROPN
dss-287	393	43	1.6	1.6	NUM
dss-287	393	44	,	,	PUNCT
dss-287	393	45	high	high	ADJ
dss-287	393	46	dispersion	dispersion	NOUN
dss-287	393	47	)	)	PUNCT
dss-287	393	48	.	.	PUNCT
dss-287	394	1	the	the	DET
dss-287	394	2	positive	positive	ADJ
dss-287	394	3	lens	lens	NOUN
dss-287	394	4	has	have	VERB
dss-287	394	5	lower	low	ADJ
dss-287	394	6	power	power	NOUN
dss-287	394	7	and	and	CCONJ
dss-287	394	8	dispersion	dispersion	NOUN
dss-287	394	9	than	than	ADP
dss-287	394	10	the	the	DET
dss-287	394	11	negative	negative	ADJ
dss-287	394	12	one	one	NOUN
dss-287	394	13	.	.	PUNCT
dss-287	395	1	bending	bend	VERB
dss-287	395	2	both	both	DET
dss-287	395	3	lenses	lense	NOUN
dss-287	395	4	reduces	reduce	VERB
dss-287	395	5	spherical	spherical	ADJ
dss-287	395	6	aberration	aberration	NOUN
dss-287	395	7	and	and	CCONJ
dss-287	395	8	coma	coma	NOUN
dss-287	395	9	.	.	PUNCT
dss-287	396	1	air	air	NOUN
dss-287	396	2	-	-	PUNCT
dss-287	396	3	spacing	space	VERB
dss-287	396	4	them	they	PRON
dss-287	396	5	allows	allow	VERB
dss-287	396	6	more	more	ADJ
dss-287	396	7	design	design	NOUN
dss-287	396	8	flexibility	flexibility	NOUN
dss-287	396	9	.	.	PUNCT
dss-287	397	1	however	however	ADV
dss-287	397	2	,	,	PUNCT
dss-287	397	3	astigmatism	astigmatism	NOUN
dss-287	397	4	and	and	CCONJ
dss-287	397	5	field	field	NOUN
dss-287	397	6	curvature	curvature	NOUN
dss-287	397	7	can	can	AUX
dss-287	397	8	not	not	PART
dss-287	397	9	be	be	AUX
dss-287	397	10	corrected	correct	VERB
dss-287	397	11	in	in	ADP
dss-287	397	12	standard	standard	ADJ
dss-287	397	13	achromatic	achromatic	ADJ
dss-287	397	14	doublets	doublet	NOUN
dss-287	397	15	,	,	PUNCT
dss-287	397	16	making	make	VERB
dss-287	397	17	them	they	PRON
dss-287	397	18	unsuitable	unsuitable	ADJ
dss-287	397	19	for	for	ADP
dss-287	397	20	wide	wide	ADJ
dss-287	397	21	-	-	PUNCT
dss-287	397	22	angle	angle	NOUN
dss-287	397	23	,	,	PUNCT
dss-287	397	24	sharp	sharp	ADJ
dss-287	397	25	imaging	imaging	NOUN
dss-287	397	26	on	on	ADP
dss-287	397	27	flat	flat	ADJ
dss-287	397	28	film	film	NOUN
dss-287	397	29	.	.	PUNCT
dss-287	398	1	generally	generally	ADV
dss-287	398	2	,	,	PUNCT
dss-287	398	3	designers	designer	NOUN
dss-287	398	4	can	can	AUX
dss-287	398	5	adjust	adjust	VERB
dss-287	398	6	10	10	NUM
dss-287	398	7	variables	variable	NOUN
dss-287	398	8	glass	glass	NOUN
dss-287	398	9	types	type	NOUN
dss-287	398	10	,	,	PUNCT
dss-287	398	11	curvature	curvature	NOUN
dss-287	398	12	radii	radii	NOUN
dss-287	398	13	,	,	PUNCT
dss-287	398	14	airspace	airspace	NOUN
dss-287	398	15	,	,	PUNCT
dss-287	398	16	element	element	NOUN
dss-287	398	17	order	order	NOUN
dss-287	398	18	,	,	PUNCT
dss-287	398	19	and	and	CCONJ
dss-287	398	20	thicknesses	thickness	NOUN
dss-287	398	21	to	to	PART
dss-287	398	22	reduce	reduce	VERB
dss-287	398	23	aberrations	aberration	NOUN
dss-287	398	24	.	.	PUNCT
dss-287	399	1	the	the	DET
dss-287	399	2	difference	difference	NOUN
dss-287	399	3	between	between	ADP
dss-287	399	4	red	red	ADJ
dss-287	399	5	/	/	SYM
dss-287	399	6	blue	blue	ADJ
dss-287	399	7	and	and	CCONJ
dss-287	399	8	green	green	ADJ
dss-287	399	9	focus	focus	NOUN
dss-287	399	10	is	be	AUX
dss-287	399	11	called	call	VERB
dss-287	399	12	the	the	DET
dss-287	399	13	secondary	secondary	ADJ
dss-287	399	14	spectrum	spectrum	NOUN
dss-287	399	15	(	(	PUNCT
dss-287	399	16	fig	fig	NOUN
dss-287	399	17	.	.	PUNCT
dss-287	400	1	4	4	NUM
dss-287	400	2	)	)	PUNCT
dss-287	400	3	.	.	PUNCT
dss-287	401	1	fraunhofer	fraunhofer	NOUN
dss-287	401	2	-	-	PUNCT
dss-287	401	3	type	type	NOUN
dss-287	401	4	doublets	doublet	NOUN
dss-287	401	5	reduce	reduce	VERB
dss-287	401	6	it	it	PRON
dss-287	401	7	to	to	ADP
dss-287	401	8	1/2000	1/2000	NUM
dss-287	401	9	of	of	ADP
dss-287	401	10	the	the	DET
dss-287	401	11	focal	focal	ADJ
dss-287	401	12	length	length	NOUN
dss-287	401	13	,	,	PUNCT
dss-287	401	14	semiapochromats	semiapochromat	NOUN
dss-287	401	15	to	to	ADP
dss-287	401	16	1/4000	1/4000	NUM
dss-287	401	17	,	,	PUNCT
dss-287	401	18	and	and	CCONJ
dss-287	401	19	with	with	ADP
dss-287	401	20	advanced	advanced	ADJ
dss-287	401	21	glass	glass	NOUN
dss-287	401	22	to	to	ADP
dss-287	401	23	1/8000	1/8000	NUM
dss-287	401	24	.	.	PUNCT
dss-287	402	1	the	the	DET
dss-287	402	2	best	good	ADJ
dss-287	402	3	correction	correction	NOUN
dss-287	402	4	uses	use	VERB
dss-287	402	5	fluorite	fluorite	NOUN
dss-287	402	6	(	(	PUNCT
dss-287	402	7	n	n	NOUN
dss-287	402	8	=	=	NUM
dss-287	402	9	1.43	1.43	NUM
dss-287	402	10	,	,	PUNCT
dss-287	402	11	v	v	NOUN
dss-287	402	12	=	=	SYM
dss-287	402	13	95.6	95.6	NUM
dss-287	402	14	)	)	PUNCT
dss-287	402	15	,	,	PUNCT
dss-287	402	16	reducing	reduce	VERB
dss-287	402	17	the	the	DET
dss-287	402	18	secondary	secondary	ADJ
dss-287	402	19	spectrum	spectrum	NOUN
dss-287	402	20	to	to	ADP
dss-287	402	21	1/16000	1/16000	NUM
dss-287	402	22	but	but	CCONJ
dss-287	402	23	it	it	PRON
dss-287	402	24	's	be	AUX
dss-287	402	25	very	very	ADV
dss-287	402	26	expensive	expensive	ADJ
dss-287	402	27	and	and	CCONJ
dss-287	402	28	delicate	delicate	ADJ
dss-287	402	29	(	(	PUNCT
dss-287	402	30	prone	prone	ADJ
dss-287	402	31	to	to	ADP
dss-287	402	32	weathering	weathering	NOUN
dss-287	402	33	)	)	PUNCT
dss-287	402	34	.	.	PUNCT
dss-287	403	1	in	in	ADP
dss-287	403	2	conventional	conventional	ADJ
dss-287	403	3	doublets	doublet	NOUN
dss-287	403	4	,	,	PUNCT
dss-287	403	5	the	the	DET
dss-287	403	6	secondary	secondary	ADJ
dss-287	403	7	spectrum	spectrum	NOUN
dss-287	403	8	is	be	AUX
dss-287	403	9	acceptable	acceptable	ADJ
dss-287	403	10	when	when	SCONJ
dss-287	403	11	the	the	DET
dss-287	403	12	red	red	ADJ
dss-287	403	13	and	and	CCONJ
dss-287	403	14	blue	blue	ADJ
dss-287	403	15	blurs	blur	VERB
dss-287	403	16	do	do	AUX
dss-287	403	17	not	not	PART
dss-287	403	18	exceed	exceed	VERB
dss-287	403	19	three	three	NUM
dss-287	403	20	times	time	NOUN
dss-287	403	21	the	the	DET
dss-287	403	22	diameter	diameter	NOUN
dss-287	403	23	of	of	ADP
dss-287	403	24	the	the	DET
dss-287	403	25	airy	airy	ADJ
dss-287	403	26	disk	disk	NOUN
dss-287	403	27	(	(	PUNCT
dss-287	403	28	in	in	ADP
dss-287	403	29	green	green	ADJ
dss-287	403	30	light	light	NOUN
dss-287	403	31	)	)	PUNCT
dss-287	403	32	.	.	PUNCT
dss-287	404	1	so	so	ADV
dss-287	404	2	,	,	PUNCT
dss-287	404	3	the	the	DET
dss-287	404	4	condition	condition	NOUN
dss-287	404	5	for	for	ADP
dss-287	404	6	freedom	freedom	NOUN
dss-287	404	7	from	from	ADP
dss-287	404	8	chromatic	chromatic	ADJ
dss-287	404	9	aberration	aberration	NOUN
dss-287	404	10	is	be	AUX
dss-287	404	11	:	:	PUNCT
dss-287	404	12	fmin=0.122d	fmin=0.122d	ADV
dss-287	404	13	,	,	PUNCT
dss-287	404	14	where	where	SCONJ
dss-287	404	15	fmin	fmin	NOUN
dss-287	404	16	is	be	AUX
dss-287	404	17	the	the	DET
dss-287	404	18	minimum	minimum	ADJ
dss-287	404	19	focal	focal	ADJ
dss-287	404	20	ratio	ratio	NOUN
dss-287	404	21	,	,	PUNCT
dss-287	404	22	and	and	CCONJ
dss-287	404	23	d	d	NOUN
dss-287	404	24	is	be	AUX
dss-287	404	25	the	the	DET
dss-287	404	26	aperture	aperture	ADJ
dss-287	404	27	diameter	diameter	NOUN
dss-287	404	28	.	.	PUNCT
dss-287	405	1	for	for	ADP
dss-287	405	2	example	example	NOUN
dss-287	405	3	,	,	PUNCT
dss-287	405	4	for	for	ADP
dss-287	405	5	an	an	DET
dss-287	405	6	aperture	aperture	NOUN
dss-287	405	7	of	of	ADP
dss-287	405	8	100	100	NUM
dss-287	405	9	mm	mm	NOUN
dss-287	405	10	,	,	PUNCT
dss-287	405	11	the	the	DET
dss-287	405	12	fastest	fast	ADJ
dss-287	405	13	focal	focal	ADJ
dss-287	405	14	ratio	ratio	NOUN
dss-287	405	15	giving	give	VERB
dss-287	405	16	full	full	ADJ
dss-287	405	17	achromatism	achromatism	NOUN
dss-287	405	18	is	be	AUX
dss-287	405	19	f/12.2	f/12.2	VERB
dss-287	405	20	.	.	PUNCT
dss-287	406	1	in	in	ADP
dss-287	406	2	doublets	doublet	NOUN
dss-287	406	3	corrected	correct	VERB
dss-287	406	4	for	for	ADP
dss-287	406	5	green	green	ADJ
dss-287	406	6	light	light	NOUN
dss-287	406	7	,	,	PUNCT
dss-287	406	8	red	red	ADJ
dss-287	406	9	light	light	NOUN
dss-287	406	10	is	be	AUX
dss-287	406	11	undercorrected	undercorrecte	VERB
dss-287	406	12	and	and	CCONJ
dss-287	406	13	blue	blue	ADJ
dss-287	406	14	is	be	AUX
dss-287	406	15	overcorrected	overcorrecte	VERB
dss-287	406	16	,	,	PUNCT
dss-287	406	17	a	a	DET
dss-287	406	18	wavelength	wavelength	NOUN
dss-287	406	19	-	-	PUNCT
dss-287	406	20	dependent	dependent	ADJ
dss-287	406	21	distortion	distortion	NOUN
dss-287	406	22	called	call	VERB
dss-287	406	23	spherochromatism	spherochromatism	NOUN
dss-287	406	24	.	.	PUNCT
dss-287	407	1	this	this	DET
dss-287	407	2	effect	effect	NOUN
dss-287	407	3	occurs	occur	VERB
dss-287	407	4	in	in	ADP
dss-287	407	5	all	all	ADV
dss-287	407	6	cemented	cemented	ADJ
dss-287	407	7	and	and	CCONJ
dss-287	407	8	narrow	narrow	ADJ
dss-287	407	9	-	-	PUNCT
dss-287	407	10	air	air	NOUN
dss-287	407	11	-	-	PUNCT
dss-287	407	12	gap	gap	NOUN
dss-287	407	13	doublets	doublet	NOUN
dss-287	407	14	but	but	CCONJ
dss-287	407	15	can	can	AUX
dss-287	407	16	be	be	AUX
dss-287	407	17	managed	manage	VERB
dss-287	407	18	with	with	ADP
dss-287	407	19	wider	wide	ADJ
dss-287	407	20	spacing	spacing	NOUN
dss-287	407	21	[	[	X
dss-287	407	22	3	3	NUM
dss-287	407	23	]	]	PUNCT
dss-287	407	24	.	.	PUNCT
dss-287	408	1	fig	fig	NOUN
dss-287	408	2	.	.	PUNCT
dss-287	409	1	4	4	NUM
dss-287	409	2	color	color	NOUN
dss-287	409	3	curve	curve	NOUN
dss-287	409	4	for	for	ADP
dss-287	409	5	a	a	DET
dss-287	409	6	visually	visually	ADV
dss-287	409	7	corrected	correct	VERB
dss-287	409	8	doublet	doublet	ADJ
dss-287	409	9	(	(	PUNCT
dss-287	409	10	left	left	ADV
dss-287	409	11	)	)	PUNCT
dss-287	409	12	;	;	PUNCT
dss-287	409	13	secondary	secondary	ADJ
dss-287	409	14	spectrum	spectrum	NOUN
dss-287	409	15	in	in	ADP
dss-287	409	16	a	a	DET
dss-287	409	17	doublet	doublet	ADJ
dss-287	409	18	lens	lens	NOUN
dss-287	409	19	(	(	PUNCT
dss-287	409	20	right	right	INTJ
dss-287	409	21	)	)	PUNCT
dss-287	410	1	[	[	X
dss-287	410	2	3	3	X
dss-287	410	3	]	]	PUNCT
dss-287	410	4	in	in	ADP
dss-287	410	5	[	[	X
dss-287	410	6	3	3	NUM
dss-287	410	7	]	]	PUNCT
dss-287	410	8	,	,	PUNCT
dss-287	410	9	a	a	DET
dss-287	410	10	comparison	comparison	NOUN
dss-287	410	11	between	between	ADP
dss-287	410	12	three	three	NUM
dss-287	410	13	200	200	NUM
dss-287	410	14	mm	mm	PROPN
dss-287	410	15	doublet	doublet	ADJ
dss-287	410	16	objectives	objective	NOUN
dss-287	410	17	for	for	ADP
dss-287	410	18	refractors	refractor	NOUN
dss-287	410	19	,	,	PUNCT
dss-287	410	20	fraunhofer	fraunhofer	PROPN
dss-287	410	21	f/15	f/15	NOUN
dss-287	410	22	,	,	PUNCT
dss-287	410	23	cemented	cement	VERB
dss-287	410	24	apoklaas	apoklaas	NOUN
dss-287	410	25	f/8	f/8	NOUN
dss-287	410	26	,	,	PUNCT
dss-287	410	27	and	and	CCONJ
dss-287	410	28	fluorite	fluorite	NOUN
dss-287	410	29	(	(	PUNCT
dss-287	410	30	steinheil	steinheil	NOUN
dss-287	410	31	)	)	PUNCT
dss-287	410	32	f/8	f/8	NOUN
dss-287	410	33	types	type	NOUN
dss-287	410	34	is	be	AUX
dss-287	410	35	presented	present	VERB
dss-287	410	36	.	.	PUNCT
dss-287	411	1	fraunhofer	fraunhofer	PROPN
dss-287	411	2	design	design	PROPN
dss-287	411	3	uses	use	VERB
dss-287	411	4	standard	standard	ADJ
dss-287	411	5	glass	glass	NOUN
dss-287	411	6	and	and	CCONJ
dss-287	411	7	has	have	VERB
dss-287	411	8	the	the	DET
dss-287	411	9	largest	large	ADJ
dss-287	411	10	color	color	NOUN
dss-287	411	11	error	error	NOUN
dss-287	411	12	.	.	PUNCT
dss-287	412	1	apoklaas	apoklaas	NOUN
dss-287	412	2	uses	use	VERB
dss-287	412	3	special	special	ADJ
dss-287	412	4	glass	glass	NOUN
dss-287	412	5	to	to	PART
dss-287	412	6	halve	halve	VERB
dss-287	412	7	the	the	DET
dss-287	412	8	secondary	secondary	ADJ
dss-287	412	9	spectrum	spectrum	NOUN
dss-287	412	10	,	,	PUNCT
dss-287	412	11	while	while	SCONJ
dss-287	412	12	the	the	DET
dss-287	412	13	fluorite	fluorite	NOUN
dss-287	412	14	lens	lens	NOUN
dss-287	412	15	reduces	reduce	VERB
dss-287	412	16	it	it	PRON
dss-287	412	17	further	far	ADV
dss-287	412	18	,	,	PUNCT
dss-287	412	19	but	but	CCONJ
dss-287	412	20	is	be	AUX
dss-287	412	21	sensitive	sensitive	ADJ
dss-287	412	22	to	to	ADP
dss-287	412	23	weathering	weather	VERB
dss-287	412	24	,	,	PUNCT
dss-287	412	25	so	so	CCONJ
dss-287	412	26	it	it	PRON
dss-287	412	27	's	be	AUX
dss-287	412	28	placed	place	VERB
dss-287	412	29	behind	behind	ADP
dss-287	412	30	the	the	DET
dss-287	412	31	negative	negative	ADJ
dss-287	412	32	element	element	NOUN
dss-287	412	33	(	(	PUNCT
dss-287	412	34	steinheil	steinheil	NOUN
dss-287	412	35	design	design	PROPN
dss-287	412	36	)	)	PUNCT
dss-287	412	37	.	.	PUNCT
dss-287	413	1	fluorite	fluorite	NOUN
dss-287	413	2	lenses	lense	NOUN
dss-287	413	3	allow	allow	VERB
dss-287	413	4	for	for	ADP
dss-287	413	5	faster	fast	ADJ
dss-287	413	6	,	,	PUNCT
dss-287	413	7	shorter	short	ADJ
dss-287	413	8	telescopes	telescope	NOUN
dss-287	413	9	.	.	PUNCT
dss-287	414	1	design	design	NOUN
dss-287	414	2	parameters	parameter	NOUN
dss-287	414	3	of	of	ADP
dss-287	414	4	these	these	DET
dss-287	414	5	refractors	refractor	NOUN
dss-287	414	6	are	be	AUX
dss-287	414	7	given	give	VERB
dss-287	414	8	in	in	ADP
dss-287	414	9	table	table	NOUN
dss-287	414	10	2	2	NUM
dss-287	414	11	.	.	PUNCT
dss-287	414	12	table	table	NOUN
dss-287	414	13	2	2	NUM
dss-287	414	14	.	.	PUNCT
dss-287	415	1	design	design	NOUN
dss-287	415	2	characteristics	characteristic	NOUN
dss-287	415	3	of	of	ADP
dss-287	415	4	three	three	NUM
dss-287	415	5	different	different	ADJ
dss-287	415	6	double	double	ADJ
dss-287	415	7	refractor	refractor	NOUN
dss-287	415	8	designs	design	NOUN
dss-287	415	9	[	[	X
dss-287	415	10	3	3	NUM
dss-287	415	11	]	]	PUNCT
dss-287	415	12	parameter	parameter	NOUN
dss-287	415	13	fraunhofer	fraunhofer	PROPN
dss-287	415	14	f/15	f/15	PROPN
dss-287	415	15	apoklaas	apoklaas	NOUN
dss-287	415	16	f/10	f/10	ADJ
dss-287	415	17	fluorite	fluorite	NOUN
dss-287	415	18	ƒ/8	ƒ/8	PUNCT
dss-287	415	19	r	r	NOUN
dss-287	415	20	,	,	PUNCT
dss-287	415	21	radius	radius	NOUN
dss-287	415	22	of	of	ADP
dss-287	415	23	curvature	curvature	NOUN
dss-287	415	24	2009.753	2009.753	PROPN
dss-287	415	25	1175.900	1175.900	NUM
dss-287	415	26	546.292	546.292	NUM
dss-287	415	27	t	t	NOUN
dss-287	415	28	,	,	PUNCT
dss-287	415	29	axial	axial	ADJ
dss-287	415	30	dis	dis	PROPN
dss-287	415	31	.	.	PUNCT
dss-287	416	1	31.336	31.336	NUM
dss-287	416	2	24	24	NUM
dss-287	416	3	12	12	NUM
dss-287	416	4	m	m	NOUN
dss-287	416	5	,	,	PUNCT
dss-287	416	6	medium	medium	ADJ
dss-287	416	7	517642	517642	NUM
dss-287	416	8	487845	487845	NUM
dss-287	416	9	720504	720504	NUM
dss-287	416	10	r₂	r₂	VERB
dss-287	416	11	-976.245	-976.245	PROPN
dss-287	416	12	-513.920	-513.920	NUM
dss-287	416	13	356.146	356.146	NUM
dss-287	416	14	t₂	t₂	NOUN
dss-287	416	15	3.315	3.315	NUM
dss-287	416	16	1	1	NUM
dss-287	416	17	1	1	NUM
dss-287	416	18	m₂	m₂	PROPN
dss-287	416	19	air	air	NOUN
dss-287	416	20	air	air	PROPN
dss-287	416	21	air	air	PROPN
dss-287	416	22	r3	r3	PROPN
dss-287	416	23	-985.291	-985.291	PROPN
dss-287	416	24	-522.606	-522.606	NUM
dss-287	416	25	348.299	348.299	NUM
dss-287	416	26	ꭲ	ꭲ	NOUN
dss-287	416	27	,	,	PUNCT
dss-287	416	28	25.109	25.109	NUM
dss-287	416	29	12	12	NUM
dss-287	416	30	24	24	NUM
dss-287	416	31	m3	m3	PROPN
dss-287	416	32	613370	613370	NUM
dss-287	416	33	558542	558542	NUM
dss-287	416	34	fluorite	fluorite	NOUN
dss-287	416	35	r₁	r₁	VERB
dss-287	416	36	-3636.839	-3636.839	PUNCT
dss-287	416	37	-2756.828	-2756.828	PUNCT
dss-287	416	38	-6670.445	-6670.445	PUNCT
dss-287	416	39	t₁	t₁	VERB
dss-287	416	40	back	back	ADV
dss-287	416	41	focal	focal	ADJ
dss-287	416	42	length	length	NOUN
dss-287	416	43	2968.12	2968.12	NUM
dss-287	416	44	2000	2000	NUM
dss-287	416	45	1599.996	1599.996	NUM
dss-287	416	46	m₁	m₁	NOUN
dss-287	416	47	air	air	NOUN
dss-287	416	48	air	air	PROPN
dss-287	416	49	air	air	PROPN
dss-287	416	50	efl	efl	PROPN
dss-287	416	51	3000	3000	NUM
dss-287	416	52	2020	2020	NUM
dss-287	416	53	1600	1600	NUM
dss-287	416	54	1	1	NUM
dss-287	416	55	°	°	PROPN
dss-287	416	56	field	field	NOUN
dss-287	416	57	52.4	52.4	NUM
dss-287	416	58	35.3	35.3	NUM
dss-287	416	59	27.9	27.9	NUM
dss-287	416	60	note	note	NOUN
dss-287	416	61	that	that	SCONJ
dss-287	416	62	optical	optical	ADJ
dss-287	416	63	glasses	glass	NOUN
dss-287	416	64	have	have	VERB
dss-287	416	65	international	international	ADJ
dss-287	416	66	standardized	standardized	ADJ
dss-287	416	67	six	six	NUM
dss-287	416	68	digit	digit	NOUN
dss-287	416	69	code	code	NOUN
dss-287	416	70	(	(	PUNCT
dss-287	416	71	see	see	VERB
dss-287	416	72	table	table	NOUN
dss-287	416	73	2	2	NUM
dss-287	416	74	for	for	ADP
dss-287	416	75	medium	medium	ADJ
dss-287	416	76	designations	designation	NOUN
dss-287	416	77	)	)	PUNCT
dss-287	416	78	.	.	PUNCT
dss-287	417	1	this	this	PRON
dss-287	417	2	indicates	indicate	VERB
dss-287	417	3	the	the	DET
dss-287	417	4	first	first	ADJ
dss-287	417	5	three	three	NUM
dss-287	417	6	digits	digit	NOUN
dss-287	417	7	after	after	ADP
dss-287	417	8	the	the	DET
dss-287	417	9	decimal	decimal	ADJ
dss-287	417	10	point	point	NOUN
dss-287	417	11	in	in	ADP
dss-287	417	12	the	the	DET
dss-287	417	13	refractive	refractive	ADJ
dss-287	417	14	index	index	NOUN
dss-287	417	15	,	,	PUNCT
dss-287	417	16	nd	nd	PRON
dss-287	417	17	,	,	PUNCT
dss-287	417	18	and	and	CCONJ
dss-287	417	19	the	the	DET
dss-287	417	20	first	first	ADJ
dss-287	417	21	three	three	NUM
dss-287	417	22	digits	digit	NOUN
dss-287	417	23	dss	dss	NOUN
dss-287	417	24	vol	vol	NOUN
dss-287	417	25	.	.	PROPN
dss-287	418	1	6	6	NUM
dss-287	418	2	,	,	PUNCT
dss-287	418	3	no	no	INTJ
dss-287	418	4	.	.	NOUN
dss-287	418	5	1	1	NUM
dss-287	418	6	,	,	PUNCT
dss-287	418	7	2025	2025	NUM
dss-287	418	8	,	,	PUNCT
dss-287	418	9	pp.49	pp.49	NOUN
dss-287	418	10	-	-	SYM
dss-287	418	11	90	90	NUM
dss-287	418	12	63	63	NUM
dss-287	418	13	of	of	ADP
dss-287	418	14	the	the	DET
dss-287	418	15	abbe	abbe	NOUN
dss-287	418	16	number	number	NOUN
dss-287	418	17	,	,	PUNCT
dss-287	418	18	vd	vd	NOUN
dss-287	418	19	.	.	PUNCT
dss-287	419	1	this	this	PRON
dss-287	419	2	means	mean	VERB
dss-287	419	3	that	that	SCONJ
dss-287	419	4	a	a	DET
dss-287	419	5	glass	glass	NOUN
dss-287	419	6	517642	517642	NUM
dss-287	419	7	has	have	VERB
dss-287	419	8	a	a	DET
dss-287	419	9	refractive	refractive	ADJ
dss-287	419	10	index	index	NOUN
dss-287	419	11	of	of	ADP
dss-287	419	12	1.517	1.517	NUM
dss-287	419	13	and	and	CCONJ
dss-287	419	14	an	an	DET
dss-287	419	15	abbe	abbe	NOUN
dss-287	419	16	number	number	NOUN
dss-287	419	17	of	of	ADP
dss-287	419	18	64.2	64.2	NUM
dss-287	419	19	(	(	PUNCT
dss-287	419	20	the	the	DET
dss-287	419	21	catalogues	catalogue	NOUN
dss-287	419	22	show	show	VERB
dss-287	419	23	that	that	SCONJ
dss-287	419	24	this	this	DET
dss-287	419	25	glass	glass	NOUN
dss-287	419	26	is	be	AUX
dss-287	419	27	bk7	bk7	ADJ
dss-287	419	28	,	,	PUNCT
dss-287	419	29	a	a	DET
dss-287	419	30	borosilicate	borosilicate	ADJ
dss-287	419	31	crown	crown	NOUN
dss-287	419	32	glass	glass	NOUN
dss-287	419	33	made	make	VERB
dss-287	419	34	by	by	ADP
dss-287	419	35	schott	schott	PROPN
dss-287	419	36	inc	inc	PROPN
dss-287	419	37	)	)	PUNCT
dss-287	419	38	.	.	PUNCT
dss-287	420	1	the	the	DET
dss-287	420	2	spot	spot	NOUN
dss-287	420	3	diagrams	diagram	NOUN
dss-287	420	4	in	in	ADP
dss-287	420	5	fig	fig	NOUN
dss-287	420	6	.	.	PUNCT
dss-287	421	1	5	5	NUM
dss-287	421	2	show	show	VERB
dss-287	421	3	that	that	SCONJ
dss-287	421	4	the	the	DET
dss-287	421	5	fraunhofer	fraunhofer	PROPN
dss-287	421	6	lens	lens	NOUN
dss-287	421	7	has	have	VERB
dss-287	421	8	significant	significant	ADJ
dss-287	421	9	color	color	NOUN
dss-287	421	10	aberration	aberration	NOUN
dss-287	421	11	(	(	PUNCT
dss-287	421	12	red	red	ADJ
dss-287	421	13	/	/	SYM
dss-287	421	14	blue	blue	ADJ
dss-287	421	15	spots	spot	NOUN
dss-287	421	16	~5×	~5×	VERB
dss-287	421	17	the	the	DET
dss-287	421	18	airy	airy	ADJ
dss-287	421	19	disk	disk	NOUN
dss-287	421	20	)	)	PUNCT
dss-287	421	21	.	.	PUNCT
dss-287	422	1	apoklaas	apoklaas	NOUN
dss-287	422	2	and	and	CCONJ
dss-287	422	3	fluorite	fluorite	NOUN
dss-287	422	4	lenses	lense	NOUN
dss-287	422	5	show	show	VERB
dss-287	422	6	much	much	ADV
dss-287	422	7	better	well	ADJ
dss-287	422	8	correction	correction	NOUN
dss-287	422	9	(	(	PUNCT
dss-287	422	10	~1.5×	~1.5×	DET
dss-287	422	11	the	the	DET
dss-287	422	12	airy	airy	ADJ
dss-287	422	13	disk	disk	NOUN
dss-287	422	14	)	)	PUNCT
dss-287	422	15	.	.	PUNCT
dss-287	423	1	however	however	ADV
dss-287	423	2	,	,	PUNCT
dss-287	423	3	the	the	DET
dss-287	423	4	fluorite	fluorite	NOUN
dss-287	423	5	lens	len	NOUN
dss-287	423	6	,	,	PUNCT
dss-287	423	7	though	though	SCONJ
dss-287	423	8	best	good	ADJ
dss-287	423	9	for	for	ADP
dss-287	423	10	color	color	NOUN
dss-287	423	11	correction	correction	NOUN
dss-287	423	12	,	,	PUNCT
dss-287	423	13	suffers	suffer	VERB
dss-287	423	14	more	more	ADV
dss-287	423	15	from	from	ADP
dss-287	423	16	spherochromatism	spherochromatism	NOUN
dss-287	423	17	.	.	PUNCT
dss-287	424	1	despite	despite	SCONJ
dss-287	424	2	good	good	ADJ
dss-287	424	3	visual	visual	ADJ
dss-287	424	4	correction	correction	NOUN
dss-287	424	5	,	,	PUNCT
dss-287	424	6	all	all	DET
dss-287	424	7	these	these	DET
dss-287	424	8	objectives	objective	NOUN
dss-287	424	9	show	show	VERB
dss-287	424	10	poor	poor	ADJ
dss-287	424	11	violet	violet	ADJ
dss-287	424	12	correction	correction	NOUN
dss-287	424	13	,	,	PUNCT
dss-287	424	14	especially	especially	ADV
dss-287	424	15	in	in	ADP
dss-287	424	16	photography	photography	NOUN
dss-287	424	17	.	.	PUNCT
dss-287	425	1	fig	fig	NOUN
dss-287	425	2	.	.	PUNCT
dss-287	426	1	5	5	NUM
dss-287	426	2	spot	spot	NOUN
dss-287	426	3	diagrams	diagram	NOUN
dss-287	426	4	for	for	ADP
dss-287	426	5	three	three	NUM
dss-287	426	6	200	200	NUM
dss-287	426	7	mm	mm	PROPN
dss-287	426	8	refractor	refractor	NOUN
dss-287	426	9	objectives	objective	NOUN
dss-287	426	10	,	,	PUNCT
dss-287	426	11	as	as	SCONJ
dss-287	426	12	reported	report	VERB
dss-287	426	13	in	in	ADP
dss-287	426	14	[	[	X
dss-287	426	15	3	3	NUM
dss-287	426	16	]	]	ADJ
dss-287	426	17	dss	dss	NOUN
dss-287	426	18	vol	vol	NOUN
dss-287	426	19	.	.	PROPN
dss-287	427	1	6	6	NUM
dss-287	427	2	,	,	PUNCT
dss-287	427	3	no	no	INTJ
dss-287	427	4	.	.	NOUN
dss-287	427	5	1	1	NUM
dss-287	427	6	,	,	PUNCT
dss-287	427	7	2025	2025	NUM
dss-287	427	8	,	,	PUNCT
dss-287	427	9	pp.49	pp.49	NOUN
dss-287	427	10	-	-	SYM
dss-287	427	11	90	90	NUM
dss-287	427	12	64	64	NUM
dss-287	427	13	regarding	regard	VERB
dss-287	427	14	previous	previous	ADJ
dss-287	427	15	doublet	doublet	ADJ
dss-287	427	16	designs	design	NOUN
dss-287	427	17	(	(	PUNCT
dss-287	427	18	table	table	NOUN
dss-287	427	19	2	2	NUM
dss-287	427	20	and	and	CCONJ
dss-287	427	21	fig	fig	NOUN
dss-287	427	22	5	5	NUM
dss-287	427	23	)	)	PUNCT
dss-287	427	24	,	,	PUNCT
dss-287	427	25	it	it	PRON
dss-287	427	26	can	can	AUX
dss-287	427	27	be	be	AUX
dss-287	427	28	said	say	VERB
dss-287	427	29	that	that	SCONJ
dss-287	427	30	air	air	NOUN
dss-287	427	31	-	-	PUNCT
dss-287	427	32	spaced	space	VERB
dss-287	427	33	lenses	lense	NOUN
dss-287	427	34	allow	allow	VERB
dss-287	427	35	optimal	optimal	ADJ
dss-287	427	36	single	single	ADJ
dss-287	427	37	-	-	PUNCT
dss-287	427	38	color	color	NOUN
dss-287	427	39	aberration	aberration	NOUN
dss-287	427	40	correction	correction	NOUN
dss-287	427	41	with	with	ADP
dss-287	427	42	any	any	DET
dss-287	427	43	glass	glass	NOUN
dss-287	427	44	.	.	PUNCT
dss-287	428	1	cemented	cement	VERB
dss-287	428	2	doublets	doublet	NOUN
dss-287	428	3	need	need	VERB
dss-287	428	4	specific	specific	ADJ
dss-287	428	5	glass	glass	NOUN
dss-287	428	6	pairs	pair	NOUN
dss-287	428	7	with	with	ADP
dss-287	428	8	matching	match	VERB
dss-287	428	9	curves	curve	NOUN
dss-287	428	10	for	for	ADP
dss-287	428	11	best	good	ADJ
dss-287	428	12	correction	correction	NOUN
dss-287	428	13	(	(	PUNCT
dss-287	428	14	though	though	SCONJ
dss-287	428	15	a	a	DET
dss-287	428	16	small	small	ADJ
dss-287	428	17	air	air	NOUN
dss-287	428	18	gap	gap	NOUN
dss-287	428	19	works	work	VERB
dss-287	428	20	similarly	similarly	ADV
dss-287	428	21	)	)	PUNCT
dss-287	428	22	.	.	PUNCT
dss-287	429	1	a	a	DET
dss-287	429	2	problem	problem	NOUN
dss-287	429	3	with	with	ADP
dss-287	429	4	larger	large	ADJ
dss-287	429	5	(	(	PUNCT
dss-287	429	6	around	around	ADP
dss-287	429	7	100mm+	100mm+	NUM
dss-287	429	8	)	)	PUNCT
dss-287	429	9	cemented	cement	VERB
dss-287	429	10	doublets	doublet	NOUN
dss-287	429	11	is	be	AUX
dss-287	429	12	that	that	SCONJ
dss-287	429	13	temperature	temperature	NOUN
dss-287	429	14	changes	change	NOUN
dss-287	429	15	can	can	AUX
dss-287	429	16	harm	harm	VERB
dss-287	429	17	the	the	DET
dss-287	429	18	lens	lens	NOUN
dss-287	429	19	bond	bond	NOUN
dss-287	429	20	[	[	X
dss-287	429	21	40	40	NUM
dss-287	429	22	]	]	PUNCT
dss-287	429	23	.	.	PUNCT
dss-287	430	1	to	to	PART
dss-287	430	2	focus	focus	VERB
dss-287	430	3	red	red	ADJ
dss-287	430	4	,	,	PUNCT
dss-287	430	5	blue	blue	ADJ
dss-287	430	6	,	,	PUNCT
dss-287	430	7	and	and	CCONJ
dss-287	430	8	violet	violet	ADJ
dss-287	430	9	light	light	NOUN
dss-287	430	10	together	together	ADV
dss-287	430	11	,	,	PUNCT
dss-287	430	12	designers	designer	NOUN
dss-287	430	13	use	use	VERB
dss-287	430	14	apochromatic	apochromatic	ADJ
dss-287	430	15	objectives	objective	NOUN
dss-287	430	16	with	with	ADP
dss-287	430	17	three	three	NUM
dss-287	430	18	lenses	lense	NOUN
dss-287	430	19	made	make	VERB
dss-287	430	20	from	from	ADP
dss-287	430	21	different	different	ADJ
dss-287	430	22	materials	material	NOUN
dss-287	430	23	.	.	PUNCT
dss-287	431	1	these	these	PRON
dss-287	431	2	reduce	reduce	VERB
dss-287	431	3	secondary	secondary	ADJ
dss-287	431	4	spectrum	spectrum	NOUN
dss-287	431	5	to	to	ADP
dss-287	431	6	about	about	ADP
dss-287	431	7	1/10,000	1/10,000	NUM
dss-287	431	8	of	of	ADP
dss-287	431	9	the	the	DET
dss-287	431	10	focal	focal	ADJ
dss-287	431	11	length	length	NOUN
dss-287	431	12	,	,	PUNCT
dss-287	431	13	making	make	VERB
dss-287	431	14	them	they	PRON
dss-287	431	15	better	well	ADJ
dss-287	431	16	than	than	ADP
dss-287	431	17	achromats	achromat	NOUN
dss-287	431	18	for	for	ADP
dss-287	431	19	photography	photography	NOUN
dss-287	431	20	[	[	X
dss-287	431	21	3	3	NUM
dss-287	431	22	]	]	PUNCT
dss-287	431	23	.	.	PUNCT
dss-287	432	1	apochromatic	apochromatic	ADJ
dss-287	432	2	triplets	triplet	NOUN
dss-287	432	3	use	use	VERB
dss-287	432	4	two	two	NUM
dss-287	432	5	crown	crown	NOUN
dss-287	432	6	lenses	lense	NOUN
dss-287	432	7	designed	design	VERB
dss-287	432	8	to	to	PART
dss-287	432	9	have	have	VERB
dss-287	432	10	a	a	DET
dss-287	432	11	combined	combined	ADJ
dss-287	432	12	dispersion	dispersion	NOUN
dss-287	432	13	similar	similar	ADJ
dss-287	432	14	to	to	ADP
dss-287	432	15	a	a	DET
dss-287	432	16	particular	particular	ADJ
dss-287	432	17	flint	flint	NOUN
dss-287	432	18	glass	glass	NOUN
dss-287	432	19	.	.	PUNCT
dss-287	433	1	while	while	SCONJ
dss-287	433	2	ernst	ernst	PROPN
dss-287	433	3	abbe	abbe	PROPN
dss-287	433	4	defined	define	VERB
dss-287	433	5	a	a	DET
dss-287	433	6	true	true	ADJ
dss-287	433	7	apochromat	apochromat	NOUN
dss-287	433	8	as	as	ADP
dss-287	433	9	a	a	DET
dss-287	433	10	lens	lens	NOUN
dss-287	433	11	with	with	ADP
dss-287	433	12	parfocal	parfocal	ADJ
dss-287	433	13	correction	correction	NOUN
dss-287	433	14	for	for	ADP
dss-287	433	15	three	three	NUM
dss-287	433	16	distant	distant	ADJ
dss-287	433	17	colors	color	NOUN
dss-287	433	18	and	and	CCONJ
dss-287	433	19	spherical	spherical	ADJ
dss-287	433	20	aberration	aberration	NOUN
dss-287	433	21	and	and	CCONJ
dss-287	433	22	coma	coma	NOUN
dss-287	433	23	correction	correction	NOUN
dss-287	433	24	for	for	ADP
dss-287	433	25	two	two	NUM
dss-287	433	26	,	,	PUNCT
dss-287	433	27	modern	modern	ADJ
dss-287	433	28	"	"	PUNCT
dss-287	433	29	apochromatic	apochromatic	ADJ
dss-287	433	30	"	"	PUNCT
dss-287	433	31	lenses	lense	NOUN
dss-287	433	32	do	do	AUX
dss-287	433	33	n't	not	PART
dss-287	433	34	fully	fully	ADV
dss-287	433	35	meet	meet	VERB
dss-287	433	36	this	this	DET
dss-287	433	37	strict	strict	ADJ
dss-287	433	38	definition	definition	NOUN
dss-287	433	39	.	.	PUNCT
dss-287	434	1	correcting	correct	VERB
dss-287	434	2	focus	focus	NOUN
dss-287	434	3	variations	variation	NOUN
dss-287	434	4	across	across	ADP
dss-287	434	5	wavelengths	wavelength	NOUN
dss-287	434	6	(	(	PUNCT
dss-287	434	7	spherochromatism	spherochromatism	NOUN
dss-287	434	8	)	)	PUNCT
dss-287	434	9	perfectly	perfectly	ADV
dss-287	434	10	requires	require	VERB
dss-287	434	11	very	very	ADV
dss-287	434	12	long	long	ADJ
dss-287	434	13	focal	focal	ADJ
dss-287	434	14	lengths	length	NOUN
dss-287	434	15	,	,	PUNCT
dss-287	434	16	large	large	ADJ
dss-287	434	17	air	air	NOUN
dss-287	434	18	gaps	gap	NOUN
dss-287	434	19	,	,	PUNCT
dss-287	434	20	aspherical	aspherical	ADJ
dss-287	434	21	surfaces	surface	NOUN
dss-287	434	22	,	,	PUNCT
dss-287	434	23	or	or	CCONJ
dss-287	434	24	a	a	DET
dss-287	434	25	petzval	petzval	ADJ
dss-287	434	26	design	design	NOUN
dss-287	434	27	.	.	PUNCT
dss-287	435	1	instead	instead	ADV
dss-287	435	2	,	,	PUNCT
dss-287	435	3	modern	modern	ADJ
dss-287	435	4	lenses	lense	NOUN
dss-287	435	5	minimize	minimize	VERB
dss-287	435	6	spherochromatism	spherochromatism	NOUN
dss-287	435	7	using	use	VERB
dss-287	435	8	some	some	PRON
dss-287	435	9	of	of	ADP
dss-287	435	10	these	these	DET
dss-287	435	11	methods	method	NOUN
dss-287	435	12	,	,	PUNCT
dss-287	435	13	and	and	CCONJ
dss-287	435	14	coma	coma	NOUN
dss-287	435	15	is	be	AUX
dss-287	435	16	corrected	correct	VERB
dss-287	435	17	for	for	ADP
dss-287	435	18	one	one	NUM
dss-287	435	19	wavelength	wavelength	NOUN
dss-287	435	20	,	,	PUNCT
dss-287	435	21	which	which	PRON
dss-287	435	22	largely	largely	ADV
dss-287	435	23	reduces	reduce	VERB
dss-287	435	24	it	it	PRON
dss-287	435	25	across	across	ADP
dss-287	435	26	the	the	DET
dss-287	435	27	visible	visible	ADJ
dss-287	435	28	spectrum	spectrum	NOUN
dss-287	435	29	.	.	PUNCT
dss-287	436	1	for	for	ADP
dss-287	436	2	wider	wide	ADJ
dss-287	436	3	photographic	photographic	ADJ
dss-287	436	4	views	view	NOUN
dss-287	436	5	and	and	CCONJ
dss-287	436	6	easier	easy	ADJ
dss-287	436	7	portability	portability	NOUN
dss-287	436	8	with	with	ADP
dss-287	436	9	shorter	short	ADJ
dss-287	436	10	tubes	tube	NOUN
dss-287	436	11	,	,	PUNCT
dss-287	436	12	most	most	ADJ
dss-287	436	13	modern	modern	ADJ
dss-287	436	14	refractors	refractor	NOUN
dss-287	436	15	have	have	VERB
dss-287	436	16	smaller	small	ADJ
dss-287	436	17	focal	focal	ADJ
dss-287	436	18	ratios	ratio	NOUN
dss-287	436	19	,	,	PUNCT
dss-287	436	20	typically	typically	ADV
dss-287	436	21	ƒ/8	ƒ/8	NUM
dss-287	436	22	to	to	ADP
dss-287	436	23	ƒ/5	ƒ/5	NOUN
dss-287	436	24	.	.	PUNCT
dss-287	437	1	special	special	ADJ
dss-287	437	2	optical	optical	ADJ
dss-287	437	3	glass	glass	NOUN
dss-287	437	4	,	,	PUNCT
dss-287	437	5	known	know	VERB
dss-287	437	6	as	as	ADP
dss-287	437	7	ed	ed	NOUN
dss-287	437	8	or	or	CCONJ
dss-287	437	9	extra	extra	ADJ
dss-287	437	10	-	-	ADJ
dss-287	437	11	low	low	ADJ
dss-287	437	12	dispersion	dispersion	NOUN
dss-287	437	13	glass	glass	NOUN
dss-287	437	14	,	,	PUNCT
dss-287	437	15	enables	enable	VERB
dss-287	437	16	more	more	ADV
dss-287	437	17	precise	precise	ADJ
dss-287	437	18	lens	lens	NOUN
dss-287	437	19	designs	design	NOUN
dss-287	437	20	that	that	PRON
dss-287	437	21	better	well	ADV
dss-287	437	22	minimize	minimize	VERB
dss-287	437	23	both	both	PRON
dss-287	437	24	coma	coma	NOUN
dss-287	437	25	and	and	CCONJ
dss-287	437	26	chromatic	chromatic	ADJ
dss-287	437	27	aberration	aberration	NOUN
dss-287	437	28	.	.	PUNCT
dss-287	438	1	achromatic	achromatic	ADJ
dss-287	438	2	lenses	lense	NOUN
dss-287	438	3	incorporating	incorporate	VERB
dss-287	438	4	ed	ed	NOUN
dss-287	438	5	glass	glass	NOUN
dss-287	438	6	are	be	AUX
dss-287	438	7	sometimes	sometimes	ADV
dss-287	438	8	sold	sell	VERB
dss-287	438	9	as	as	ADP
dss-287	438	10	ed	ed	NOUN
dss-287	438	11	achromats	achromat	NOUN
dss-287	438	12	or	or	CCONJ
dss-287	438	13	semi	semi	NOUN
dss-287	438	14	-	-	NOUN
dss-287	438	15	apochromats	apochromat	NOUN
dss-287	438	16	,	,	PUNCT
dss-287	438	17	like	like	ADP
dss-287	438	18	those	those	PRON
dss-287	438	19	from	from	ADP
dss-287	438	20	skywatcher	skywatcher	NOUN
dss-287	438	21	.	.	PUNCT
dss-287	439	1	to	to	PART
dss-287	439	2	control	control	VERB
dss-287	439	3	increased	increase	VERB
dss-287	439	4	optical	optical	ADJ
dss-287	439	5	distortions	distortion	NOUN
dss-287	439	6	at	at	ADP
dss-287	439	7	higher	high	ADJ
dss-287	439	8	magnifications	magnification	NOUN
dss-287	439	9	,	,	PUNCT
dss-287	439	10	a	a	DET
dss-287	439	11	third	third	ADJ
dss-287	439	12	lens	lens	NOUN
dss-287	439	13	is	be	AUX
dss-287	439	14	incorporated	incorporate	VERB
dss-287	439	15	into	into	ADP
dss-287	439	16	apochromatic	apochromatic	ADJ
dss-287	439	17	designs	design	NOUN
dss-287	439	18	,	,	PUNCT
dss-287	439	19	often	often	ADV
dss-287	439	20	marketed	market	VERB
dss-287	439	21	as	as	ADP
dss-287	439	22	apo	apo	PROPN
dss-287	439	23	or	or	CCONJ
dss-287	439	24	apo	apo	PROPN
dss-287	439	25	triplets	triplet	NOUN
dss-287	439	26	by	by	ADP
dss-287	439	27	companies	company	NOUN
dss-287	439	28	such	such	ADJ
dss-287	439	29	as	as	ADP
dss-287	439	30	tec	tec	NOUN
dss-287	439	31	,	,	PUNCT
dss-287	439	32	astro	astro	NOUN
dss-287	439	33	-	-	PUNCT
dss-287	439	34	physics	physics	PROPN
dss-287	439	35	,	,	PUNCT
dss-287	439	36	takahashi	takahashi	PROPN
dss-287	439	37	,	,	PUNCT
dss-287	439	38	and	and	CCONJ
dss-287	439	39	sky	sky	NOUN
dss-287	439	40	-	-	PUNCT
dss-287	439	41	watcher	watcher	NOUN
dss-287	439	42	.	.	PUNCT
dss-287	440	1	an	an	DET
dss-287	440	2	even	even	ADV
dss-287	440	3	more	more	ADV
dss-287	440	4	advanced	advanced	ADJ
dss-287	440	5	design	design	NOUN
dss-287	440	6	uses	use	VERB
dss-287	440	7	a	a	DET
dss-287	440	8	fourth	fourth	ADJ
dss-287	440	9	lens	lens	NOUN
dss-287	440	10	to	to	PART
dss-287	440	11	create	create	VERB
dss-287	440	12	a	a	DET
dss-287	440	13	crown	crown	NOUN
dss-287	440	14	element	element	NOUN
dss-287	440	15	combined	combine	VERB
dss-287	440	16	with	with	ADP
dss-287	440	17	an	an	DET
dss-287	440	18	ed	ed	NOUN
dss-287	440	19	triplet	triplet	NOUN
dss-287	440	20	,	,	PUNCT
dss-287	440	21	referred	refer	VERB
dss-287	440	22	to	to	ADP
dss-287	440	23	as	as	ADP
dss-287	440	24	a	a	DET
dss-287	440	25	super	super	ADV
dss-287	440	26	apochromat	apochromat	NOUN
dss-287	440	27	,	,	PUNCT
dss-287	440	28	as	as	SCONJ
dss-287	440	29	nowadays	nowadays	ADV
dss-287	440	30	seen	see	VERB
dss-287	440	31	in	in	ADP
dss-287	440	32	takahashi	takahashi	PROPN
dss-287	440	33	's	's	PART
dss-287	440	34	tsa	tsa	NOUN
dss-287	440	35	refractors	refractor	NOUN
dss-287	440	36	[	[	X
dss-287	440	37	155	155	NUM
dss-287	440	38	]	]	SYM
dss-287	440	39	.	.	PUNCT
dss-287	441	1	5	5	X
dss-287	441	2	.	.	X
dss-287	441	3	reflecting	reflect	VERB
dss-287	441	4	(	(	PUNCT
dss-287	441	5	catoptric	catoptric	ADJ
dss-287	441	6	)	)	PUNCT
dss-287	441	7	telescopes	telescope	NOUN
dss-287	441	8	reflector	reflector	NOUN
dss-287	441	9	telescopes	telescope	NOUN
dss-287	441	10	(	(	PUNCT
dss-287	441	11	fig	fig	NOUN
dss-287	441	12	.	.	NOUN
dss-287	441	13	1	1	NUM
dss-287	441	14	)	)	PUNCT
dss-287	441	15	,	,	PUNCT
dss-287	441	16	which	which	PRON
dss-287	441	17	employ	employ	VERB
dss-287	441	18	mirrors	mirror	NOUN
dss-287	441	19	to	to	PART
dss-287	441	20	collect	collect	VERB
dss-287	441	21	and	and	CCONJ
dss-287	441	22	focus	focus	VERB
dss-287	441	23	light	light	NOUN
dss-287	441	24	,	,	PUNCT
dss-287	441	25	represent	represent	VERB
dss-287	441	26	a	a	DET
dss-287	441	27	pivotal	pivotal	ADJ
dss-287	441	28	advancement	advancement	NOUN
dss-287	441	29	in	in	ADP
dss-287	441	30	optical	optical	ADJ
dss-287	441	31	astronomy	astronomy	NOUN
dss-287	441	32	.	.	PUNCT
dss-287	442	1	unlike	unlike	ADP
dss-287	442	2	refractors	refractor	NOUN
dss-287	442	3	,	,	PUNCT
dss-287	442	4	which	which	PRON
dss-287	442	5	use	use	VERB
dss-287	442	6	lenses	lense	NOUN
dss-287	442	7	,	,	PUNCT
dss-287	442	8	reflectors	reflector	NOUN
dss-287	442	9	avoid	avoid	VERB
dss-287	442	10	chromatic	chromatic	ADJ
dss-287	442	11	aberration	aberration	NOUN
dss-287	442	12	,	,	PUNCT
dss-287	442	13	making	make	VERB
dss-287	442	14	them	they	PRON
dss-287	442	15	ideal	ideal	ADJ
dss-287	442	16	for	for	ADP
dss-287	442	17	observing	observe	VERB
dss-287	442	18	faint	faint	ADJ
dss-287	442	19	,	,	PUNCT
dss-287	442	20	distant	distant	ADJ
dss-287	442	21	celestial	celestial	ADJ
dss-287	442	22	objects	object	NOUN
dss-287	442	23	.	.	PUNCT
dss-287	443	1	the	the	DET
dss-287	443	2	inception	inception	NOUN
dss-287	443	3	of	of	ADP
dss-287	443	4	reflector	reflector	NOUN
dss-287	443	5	telescopes	telescope	NOUN
dss-287	443	6	is	be	AUX
dss-287	443	7	credited	credit	VERB
dss-287	443	8	to	to	ADP
dss-287	443	9	sir	sir	PROPN
dss-287	443	10	isaac	isaac	PROPN
dss-287	443	11	newton	newton	PROPN
dss-287	443	12	,	,	PUNCT
dss-287	443	13	who	who	PRON
dss-287	443	14	constructed	construct	VERB
dss-287	443	15	the	the	DET
dss-287	443	16	first	first	ADJ
dss-287	443	17	functional	functional	ADJ
dss-287	443	18	model	model	NOUN
dss-287	443	19	in	in	ADP
dss-287	443	20	1668	1668	NUM
dss-287	443	21	using	use	VERB
dss-287	443	22	a	a	DET
dss-287	443	23	concave	concave	ADJ
dss-287	443	24	primary	primary	ADJ
dss-287	443	25	mirror	mirror	NOUN
dss-287	443	26	and	and	CCONJ
dss-287	443	27	a	a	DET
dss-287	443	28	flat	flat	ADJ
dss-287	443	29	secondary	secondary	ADJ
dss-287	443	30	mirror	mirror	NOUN
dss-287	443	31	to	to	PART
dss-287	443	32	redirect	redirect	VERB
dss-287	443	33	light	light	NOUN
dss-287	443	34	to	to	ADP
dss-287	443	35	an	an	DET
dss-287	443	36	eyepiece	eyepiece	NOUN
dss-287	443	37	.	.	PUNCT
dss-287	444	1	newton	newton	PROPN
dss-287	444	2	’s	’s	PART
dss-287	444	3	design	design	PROPN
dss-287	444	4	addressed	address	VERB
dss-287	444	5	the	the	DET
dss-287	444	6	chromatic	chromatic	ADJ
dss-287	444	7	aberration	aberration	NOUN
dss-287	444	8	inherent	inherent	ADJ
dss-287	444	9	in	in	ADP
dss-287	444	10	refracting	refracting	NOUN
dss-287	444	11	telescopes	telescope	NOUN
dss-287	444	12	,	,	PUNCT
dss-287	444	13	a	a	DET
dss-287	444	14	problem	problem	NOUN
dss-287	444	15	he	he	PRON
dss-287	444	16	identified	identify	VERB
dss-287	444	17	in	in	ADP
dss-287	444	18	his	his	PRON
dss-287	444	19	optical	optical	ADJ
dss-287	444	20	studies	study	NOUN
dss-287	444	21	[	[	X
dss-287	444	22	45	45	NUM
dss-287	444	23	]	]	PUNCT
dss-287	444	24	.	.	PUNCT
dss-287	445	1	in	in	ADP
dss-287	445	2	the	the	DET
dss-287	445	3	18th	18th	ADJ
dss-287	445	4	century	century	NOUN
dss-287	445	5	,	,	PUNCT
dss-287	445	6	james	james	PROPN
dss-287	445	7	gregory	gregory	PROPN
dss-287	445	8	proposed	propose	VERB
dss-287	445	9	an	an	DET
dss-287	445	10	alternative	alternative	ADJ
dss-287	445	11	configuration	configuration	NOUN
dss-287	445	12	with	with	ADP
dss-287	445	13	a	a	DET
dss-287	445	14	parabolic	parabolic	ADJ
dss-287	445	15	primary	primary	ADJ
dss-287	445	16	mirror	mirror	NOUN
dss-287	445	17	and	and	CCONJ
dss-287	445	18	an	an	DET
dss-287	445	19	elliptical	elliptical	ADJ
dss-287	445	20	secondary	secondary	ADJ
dss-287	445	21	mirror	mirror	NOUN
dss-287	445	22	,	,	PUNCT
dss-287	445	23	though	though	SCONJ
dss-287	445	24	practical	practical	ADJ
dss-287	445	25	implementation	implementation	NOUN
dss-287	445	26	lagged	lag	VERB
dss-287	445	27	due	due	ADP
dss-287	445	28	to	to	ADP
dss-287	445	29	manufacturing	manufacture	VERB
dss-287	445	30	challenges	challenge	NOUN
dss-287	445	31	[	[	X
dss-287	445	32	56	56	NUM
dss-287	445	33	]	]	PUNCT
dss-287	445	34	.	.	PUNCT
dss-287	446	1	william	william	PROPN
dss-287	446	2	herschel	herschel	PROPN
dss-287	446	3	’s	’s	PART
dss-287	446	4	large	large	ADJ
dss-287	446	5	reflectors	reflector	NOUN
dss-287	446	6	in	in	ADP
dss-287	446	7	the	the	DET
dss-287	446	8	late	late	ADJ
dss-287	446	9	18th	18th	ADJ
dss-287	446	10	century	century	NOUN
dss-287	446	11	demonstrated	demonstrate	VERB
dss-287	446	12	the	the	DET
dss-287	446	13	potential	potential	NOUN
dss-287	446	14	of	of	ADP
dss-287	446	15	mirrors	mirror	NOUN
dss-287	446	16	for	for	ADP
dss-287	446	17	deep	deep	ADJ
dss-287	446	18	-	-	PUNCT
dss-287	446	19	sky	sky	NOUN
dss-287	446	20	observation	observation	NOUN
dss-287	446	21	,	,	PUNCT
dss-287	446	22	despite	despite	SCONJ
dss-287	446	23	difficulties	difficulty	NOUN
dss-287	446	24	with	with	ADP
dss-287	446	25	speculum	speculum	NOUN
dss-287	446	26	metal	metal	NOUN
dss-287	446	27	(	(	PUNCT
dss-287	446	28	a	a	DET
dss-287	446	29	mixture	mixture	NOUN
dss-287	446	30	of	of	ADP
dss-287	446	31	around	around	ADV
dss-287	446	32	two	two	NUM
dss-287	446	33	-	-	PUNCT
dss-287	446	34	thirds	third	NOUN
dss-287	446	35	copper	copper	NOUN
dss-287	446	36	and	and	CCONJ
dss-287	446	37	one	one	NUM
dss-287	446	38	-	-	PUNCT
dss-287	446	39	third	third	NOUN
dss-287	446	40	tin	tin	NOUN
dss-287	446	41	)	)	PUNCT
dss-287	446	42	,	,	PUNCT
dss-287	446	43	an	an	DET
dss-287	446	44	alloy	alloy	NOUN
dss-287	446	45	prone	prone	ADJ
dss-287	446	46	to	to	ADP
dss-287	446	47	tarnishing	tarnish	VERB
dss-287	446	48	.	.	PUNCT
dss-287	447	1	the	the	DET
dss-287	447	2	19th	19th	ADJ
dss-287	447	3	century	century	NOUN
dss-287	447	4	saw	see	VERB
dss-287	447	5	significant	significant	ADJ
dss-287	447	6	progress	progress	NOUN
dss-287	447	7	with	with	ADP
dss-287	447	8	the	the	DET
dss-287	447	9	introduction	introduction	NOUN
dss-287	447	10	of	of	ADP
dss-287	447	11	silvered	silvered	ADJ
dss-287	447	12	glass	glass	NOUN
dss-287	447	13	mirrors	mirror	NOUN
dss-287	447	14	by	by	ADP
dss-287	447	15	léon	léon	PROPN
dss-287	447	16	foucault	foucault	PROPN
dss-287	447	17	and	and	CCONJ
dss-287	447	18	the	the	DET
dss-287	447	19	development	development	NOUN
dss-287	447	20	of	of	ADP
dss-287	447	21	parabolic	parabolic	ADJ
dss-287	447	22	grinding	grind	VERB
dss-287	447	23	techniques	technique	NOUN
dss-287	447	24	.	.	PUNCT
dss-287	448	1	john	john	PROPN
dss-287	448	2	hadley	hadley	PROPN
dss-287	448	3	’s	’s	PART
dss-287	448	4	work	work	NOUN
dss-287	448	5	on	on	ADP
dss-287	448	6	mirror	mirror	NOUN
dss-287	448	7	figuring	figure	VERB
dss-287	448	8	further	further	ADJ
dss-287	448	9	refined	refine	VERB
dss-287	448	10	optical	optical	ADJ
dss-287	448	11	precision	precision	NOUN
dss-287	448	12	,	,	PUNCT
dss-287	448	13	enabling	enable	VERB
dss-287	448	14	sharper	sharp	ADJ
dss-287	448	15	images	image	NOUN
dss-287	448	16	.	.	PUNCT
dss-287	449	1	in	in	ADP
dss-287	449	2	the	the	DET
dss-287	449	3	20th	20th	ADJ
dss-287	449	4	century	century	NOUN
dss-287	449	5	,	,	PUNCT
dss-287	449	6	the	the	DET
dss-287	449	7	advent	advent	NOUN
dss-287	449	8	of	of	ADP
dss-287	449	9	aluminized	aluminized	ADJ
dss-287	449	10	coatings	coating	NOUN
dss-287	449	11	,	,	PUNCT
dss-287	449	12	as	as	SCONJ
dss-287	449	13	described	describe	VERB
dss-287	449	14	by	by	ADP
dss-287	449	15	strong	strong	ADJ
dss-287	449	16	,	,	PUNCT
dss-287	449	17	improved	improve	VERB
dss-287	449	18	mirror	mirror	NOUN
dss-287	449	19	reflectivity	reflectivity	NOUN
dss-287	449	20	and	and	CCONJ
dss-287	449	21	durability	durability	NOUN
dss-287	449	22	[	[	X
dss-287	449	23	57	57	NUM
dss-287	449	24	]	]	PUNCT
dss-287	449	25	.	.	PUNCT
dss-287	450	1	modern	modern	ADJ
dss-287	450	2	literature	literature	NOUN
dss-287	450	3	provides	provide	VERB
dss-287	450	4	a	a	DET
dss-287	450	5	rigorous	rigorous	ADJ
dss-287	450	6	analysis	analysis	NOUN
dss-287	450	7	of	of	ADP
dss-287	450	8	aberration	aberration	NOUN
dss-287	450	9	correction	correction	NOUN
dss-287	450	10	and	and	CCONJ
dss-287	450	11	mirror	mirror	NOUN
dss-287	450	12	alignment	alignment	NOUN
dss-287	450	13	in	in	ADP
dss-287	450	14	advanced	advanced	ADJ
dss-287	450	15	designs	design	NOUN
dss-287	450	16	like	like	ADP
dss-287	450	17	the	the	DET
dss-287	450	18	ritchey	ritchey	NOUN
dss-287	450	19	-	-	PUNCT
dss-287	450	20	chrétien	chrétien	PROPN
dss-287	450	21	telescope	telescope	NOUN
dss-287	450	22	[	[	X
dss-287	450	23	5,6	5,6	NUM
dss-287	450	24	]	]	PUNCT
dss-287	450	25	.	.	PUNCT
dss-287	451	1	recent	recent	ADJ
dss-287	451	2	studies	study	NOUN
dss-287	451	3	explore	explore	VERB
dss-287	451	4	the	the	DET
dss-287	451	5	integration	integration	NOUN
dss-287	451	6	of	of	ADP
dss-287	451	7	segmented	segment	VERB
dss-287	451	8	mirrors	mirror	NOUN
dss-287	451	9	and	and	CCONJ
dss-287	451	10	adaptive	adaptive	ADJ
dss-287	451	11	optics	optic	NOUN
dss-287	451	12	,	,	PUNCT
dss-287	451	13	pushing	push	VERB
dss-287	451	14	the	the	DET
dss-287	451	15	boundaries	boundary	NOUN
dss-287	451	16	of	of	ADP
dss-287	451	17	reflector	reflector	NOUN
dss-287	451	18	capabilities	capability	NOUN
dss-287	451	19	.	.	PUNCT
dss-287	452	1	the	the	DET
dss-287	452	2	design	design	NOUN
dss-287	452	3	of	of	ADP
dss-287	452	4	a	a	DET
dss-287	452	5	reflector	reflector	NOUN
dss-287	452	6	telescope	telescope	NOUN
dss-287	452	7	hinges	hinge	VERB
dss-287	452	8	on	on	ADP
dss-287	452	9	its	its	PRON
dss-287	452	10	optical	optical	ADJ
dss-287	452	11	system	system	NOUN
dss-287	452	12	,	,	PUNCT
dss-287	452	13	structural	structural	ADJ
dss-287	452	14	support	support	NOUN
dss-287	452	15	,	,	PUNCT
dss-287	452	16	and	and	CCONJ
dss-287	452	17	alignment	alignment	ADJ
dss-287	452	18	mechanisms	mechanism	NOUN
dss-287	452	19	.	.	PUNCT
dss-287	453	1	key	key	ADJ
dss-287	453	2	components	component	NOUN
dss-287	453	3	include	include	VERB
dss-287	453	4	the	the	DET
dss-287	453	5	primary	primary	ADJ
dss-287	453	6	mirror	mirror	NOUN
dss-287	453	7	,	,	PUNCT
dss-287	453	8	secondary	secondary	ADJ
dss-287	453	9	mirror	mirror	NOUN
dss-287	453	10	,	,	PUNCT
dss-287	453	11	tube	tube	NOUN
dss-287	453	12	assembly	assembly	NOUN
dss-287	453	13	,	,	PUNCT
dss-287	453	14	and	and	CCONJ
dss-287	453	15	mount	mount	PROPN
dss-287	453	16	.	.	PUNCT
dss-287	454	1	main	main	ADJ
dss-287	454	2	types	type	NOUN
dss-287	454	3	of	of	ADP
dss-287	454	4	reflecting	reflect	VERB
dss-287	454	5	telescopes	telescope	NOUN
dss-287	454	6	include	include	VERB
dss-287	454	7	:	:	PUNCT
dss-287	454	8	newtonian	newtonian	ADJ
dss-287	454	9	,	,	PUNCT
dss-287	454	10	gregorian	gregorian	NOUN
dss-287	454	11	,	,	PUNCT
dss-287	454	12	classical	classical	ADJ
dss-287	454	13	cassegrain	cassegrain	NOUN
dss-287	454	14	,	,	PUNCT
dss-287	454	15	ritchey	ritchey	PROPN
dss-287	454	16	chrétien	chrétien	PROPN
dss-287	454	17	,	,	PUNCT
dss-287	454	18	dall	dall	PROPN
dss-287	454	19	kirkham	kirkham	PROPN
dss-287	454	20	,	,	PUNCT
dss-287	454	21	as	as	SCONJ
dss-287	454	22	presented	present	VERB
dss-287	454	23	in	in	ADP
dss-287	454	24	fig	fig	NOUN
dss-287	454	25	.	.	PUNCT
dss-287	455	1	6	6	X
dss-287	455	2	.	.	X
dss-287	455	3	parameters	parameter	NOUN
dss-287	455	4	in	in	ADP
dss-287	455	5	fig	fig	NOUN
dss-287	455	6	.	.	PUNCT
dss-287	456	1	6	6	NUM
dss-287	456	2	are	be	AUX
dss-287	456	3	:	:	PUNCT
dss-287	456	4	f	f	X
dss-287	456	5	–	–	PUNCT
dss-287	456	6	effective	effective	ADJ
dss-287	456	7	focal	focal	ADJ
dss-287	456	8	length	length	NOUN
dss-287	456	9	,	,	PUNCT
dss-287	456	10	f1	f1	NOUN
dss-287	456	11	–	–	PUNCT
dss-287	456	12	primary	primary	ADJ
dss-287	456	13	focal	focal	ADJ
dss-287	456	14	length	length	NOUN
dss-287	456	15	,	,	PUNCT
dss-287	456	16	and	and	CCONJ
dss-287	456	17	fbfl	fbfl	ADJ
dss-287	456	18	–	–	PUNCT
dss-287	456	19	back	back	ADV
dss-287	456	20	focal	focal	ADJ
dss-287	456	21	length	length	NOUN
dss-287	456	22	.	.	PUNCT
dss-287	457	1	dss	dss	NOUN
dss-287	457	2	vol	vol	NOUN
dss-287	457	3	.	.	PROPN
dss-287	458	1	6	6	NUM
dss-287	458	2	,	,	PUNCT
dss-287	458	3	no	no	INTJ
dss-287	458	4	.	.	NOUN
dss-287	458	5	1	1	NUM
dss-287	458	6	,	,	PUNCT
dss-287	458	7	2025	2025	NUM
dss-287	458	8	,	,	PUNCT
dss-287	458	9	pp.49	pp.49	NOUN
dss-287	458	10	-	-	SYM
dss-287	458	11	90	90	NUM
dss-287	458	12	65	65	NUM
dss-287	458	13	fig	fig	NOUN
dss-287	458	14	.	.	PUNCT
dss-287	459	1	6	6	NUM
dss-287	459	2	main	main	ADJ
dss-287	459	3	types	type	NOUN
dss-287	459	4	of	of	ADP
dss-287	459	5	reflecting	reflect	VERB
dss-287	459	6	telescopes	telescope	NOUN
dss-287	459	7	[	[	X
dss-287	459	8	155	155	NUM
dss-287	459	9	]	]	PUNCT
dss-287	459	10	dss	dss	NOUN
dss-287	459	11	vol	vol	NOUN
dss-287	459	12	.	.	PROPN
dss-287	459	13	6	6	NUM
dss-287	459	14	,	,	PUNCT
dss-287	459	15	no	no	INTJ
dss-287	459	16	.	.	NOUN
dss-287	459	17	1	1	NUM
dss-287	459	18	,	,	PUNCT
dss-287	459	19	2025	2025	NUM
dss-287	459	20	,	,	PUNCT
dss-287	459	21	pp.49	pp.49	NOUN
dss-287	459	22	-	-	SYM
dss-287	459	23	90	90	NUM
dss-287	459	24	66	66	NUM
dss-287	459	25	the	the	DET
dss-287	459	26	newtonian	newtonian	ADJ
dss-287	459	27	reflector	reflector	NOUN
dss-287	459	28	(	(	PUNCT
dss-287	459	29	f/4	f/4	NOUN
dss-287	459	30	f/12	f/12	ADJ
dss-287	459	31	)	)	PUNCT
dss-287	459	32	,	,	PUNCT
dss-287	459	33	easy	easy	ADJ
dss-287	459	34	to	to	PART
dss-287	459	35	make	make	VERB
dss-287	459	36	and	and	CCONJ
dss-287	459	37	with	with	ADP
dss-287	459	38	good	good	ADJ
dss-287	459	39	light	light	ADJ
dss-287	459	40	grasp	grasp	NOUN
dss-287	459	41	,	,	PUNCT
dss-287	459	42	was	be	AUX
dss-287	459	43	popular	popular	ADJ
dss-287	459	44	among	among	ADP
dss-287	459	45	amateurs	amateur	NOUN
dss-287	459	46	for	for	ADP
dss-287	459	47	most	most	ADJ
dss-287	459	48	of	of	ADP
dss-287	459	49	the	the	DET
dss-287	459	50	20th	20th	ADJ
dss-287	459	51	century	century	NOUN
dss-287	459	52	.	.	PUNCT
dss-287	460	1	its	its	PRON
dss-287	460	2	unfolded	unfold	VERB
dss-287	460	3	light	light	ADJ
dss-287	460	4	path	path	NOUN
dss-287	460	5	results	result	NOUN
dss-287	460	6	in	in	ADP
dss-287	460	7	long	long	ADJ
dss-287	460	8	tubes	tube	NOUN
dss-287	460	9	,	,	PUNCT
dss-287	460	10	typically	typically	ADV
dss-287	460	11	with	with	ADP
dss-287	460	12	focal	focal	ADJ
dss-287	460	13	ratios	ratio	NOUN
dss-287	460	14	no	no	ADV
dss-287	460	15	faster	fast	ADV
dss-287	460	16	than	than	ADP
dss-287	460	17	ƒ/10	ƒ/10	ADJ
dss-287	460	18	,	,	PUNCT
dss-287	460	19	though	though	SCONJ
dss-287	460	20	faster	fast	ADJ
dss-287	460	21	ratios	ratio	NOUN
dss-287	460	22	are	be	AUX
dss-287	460	23	used	use	VERB
dss-287	460	24	for	for	ADP
dss-287	460	25	light	light	ADJ
dss-287	460	26	gathering	gathering	NOUN
dss-287	460	27	.	.	PUNCT
dss-287	461	1	astigmatism	astigmatism	NOUN
dss-287	461	2	is	be	AUX
dss-287	461	3	eliminated	eliminate	VERB
dss-287	461	4	when	when	SCONJ
dss-287	461	5	the	the	DET
dss-287	461	6	focal	focal	ADJ
dss-287	461	7	point	point	NOUN
dss-287	461	8	is	be	AUX
dss-287	461	9	as	as	ADV
dss-287	461	10	far	far	ADV
dss-287	461	11	from	from	ADP
dss-287	461	12	the	the	DET
dss-287	461	13	mirror	mirror	NOUN
dss-287	461	14	as	as	ADP
dss-287	461	15	the	the	DET
dss-287	461	16	tube	tube	NOUN
dss-287	461	17	opening	opening	NOUN
dss-287	461	18	.	.	PUNCT
dss-287	462	1	long	long	ADJ
dss-287	462	2	focal	focal	ADJ
dss-287	462	3	ratio	ratio	NOUN
dss-287	462	4	or	or	CCONJ
dss-287	462	5	large	large	ADJ
dss-287	462	6	aperture	aperture	NOUN
dss-287	462	7	newtonians	newtonian	NOUN
dss-287	462	8	often	often	ADV
dss-287	462	9	require	require	VERB
dss-287	462	10	a	a	DET
dss-287	462	11	ladder	ladder	NOUN
dss-287	462	12	to	to	PART
dss-287	462	13	reach	reach	VERB
dss-287	462	14	the	the	DET
dss-287	462	15	eyepiece	eyepiece	NOUN
dss-287	462	16	;	;	PUNCT
dss-287	462	17	the	the	DET
dss-287	462	18	dobsonian	dobsonian	ADJ
dss-287	462	19	mount	mount	PROPN
dss-287	462	20	with	with	ADP
dss-287	462	21	a	a	DET
dss-287	462	22	short	short	ADJ
dss-287	462	23	focal	focal	ADJ
dss-287	462	24	ratio	ratio	NOUN
dss-287	462	25	(	(	PUNCT
dss-287	462	26	ƒ/5	ƒ/5	NUM
dss-287	462	27	or	or	CCONJ
dss-287	462	28	less	less	ADJ
dss-287	462	29	)	)	PUNCT
dss-287	462	30	can	can	AUX
dss-287	462	31	lessen	lessen	VERB
dss-287	462	32	this	this	PRON
dss-287	462	33	.	.	PUNCT
dss-287	463	1	at	at	ADP
dss-287	463	2	fast	fast	ADJ
dss-287	463	3	focal	focal	ADJ
dss-287	463	4	ratios	ratio	NOUN
dss-287	463	5	,	,	PUNCT
dss-287	463	6	coma	coma	NOUN
dss-287	463	7	becomes	become	VERB
dss-287	463	8	noticeable	noticeable	ADJ
dss-287	463	9	but	but	CCONJ
dss-287	463	10	can	can	AUX
dss-287	463	11	be	be	AUX
dss-287	463	12	lessened	lessen	VERB
dss-287	463	13	with	with	ADP
dss-287	463	14	a	a	DET
dss-287	463	15	coma	coma	NOUN
dss-287	463	16	corrector	corrector	NOUN
dss-287	463	17	lens	len	NOUN
dss-287	463	18	.	.	PUNCT
dss-287	464	1	the	the	DET
dss-287	464	2	primary	primary	NOUN
dss-287	464	3	is	be	AUX
dss-287	464	4	a	a	DET
dss-287	464	5	paraboloid	paraboloid	ADJ
dss-287	464	6	,	,	PUNCT
dss-287	464	7	and	and	CCONJ
dss-287	464	8	the	the	DET
dss-287	464	9	secondary	secondary	ADJ
dss-287	464	10	is	be	AUX
dss-287	464	11	flat	flat	ADJ
dss-287	464	12	(	(	PUNCT
dss-287	464	13	plane	plane	NOUN
dss-287	464	14	)	)	PUNCT
dss-287	464	15	.	.	PUNCT
dss-287	465	1	the	the	DET
dss-287	465	2	gregorian	gregorian	ADJ
dss-287	465	3	telescope	telescope	NOUN
dss-287	465	4	(	(	PUNCT
dss-287	465	5	f/4	f/4	ADJ
dss-287	465	6	–	–	PUNCT
dss-287	465	7	f/40	f/40	NOUN
dss-287	465	8	)	)	PUNCT
dss-287	465	9	,	,	PUNCT
dss-287	465	10	theorized	theorize	VERB
dss-287	465	11	by	by	ADP
dss-287	465	12	mersenne	mersenne	NOUN
dss-287	465	13	in	in	ADP
dss-287	465	14	1636	1636	NUM
dss-287	465	15	and	and	CCONJ
dss-287	465	16	gregory	gregory	PROPN
dss-287	465	17	later	later	ADV
dss-287	465	18	,	,	PUNCT
dss-287	465	19	was	be	AUX
dss-287	465	20	first	first	ADV
dss-287	465	21	built	build	VERB
dss-287	465	22	by	by	ADP
dss-287	465	23	hadley	hadley	NOUN
dss-287	465	24	in	in	ADP
dss-287	465	25	1726	1726	NUM
dss-287	465	26	.	.	PUNCT
dss-287	466	1	it	it	PRON
dss-287	466	2	produces	produce	VERB
dss-287	466	3	an	an	DET
dss-287	466	4	upright	upright	ADJ
dss-287	466	5	image	image	NOUN
dss-287	466	6	by	by	ADP
dss-287	466	7	reflecting	reflect	VERB
dss-287	466	8	light	light	NOUN
dss-287	466	9	off	off	ADP
dss-287	466	10	two	two	NUM
dss-287	466	11	mirrors	mirror	NOUN
dss-287	466	12	,	,	PUNCT
dss-287	466	13	inverting	invert	VERB
dss-287	466	14	it	it	PRON
dss-287	466	15	twice	twice	ADV
dss-287	466	16	.	.	PUNCT
dss-287	467	1	this	this	DET
dss-287	467	2	design	design	NOUN
dss-287	467	3	typically	typically	ADV
dss-287	467	4	requires	require	VERB
dss-287	467	5	a	a	DET
dss-287	467	6	longer	long	ADJ
dss-287	467	7	tube	tube	NOUN
dss-287	467	8	than	than	ADP
dss-287	467	9	a	a	DET
dss-287	467	10	cassegrain	cassegrain	NOUN
dss-287	467	11	,	,	PUNCT
dss-287	467	12	which	which	PRON
dss-287	467	13	is	be	AUX
dss-287	467	14	often	often	ADV
dss-287	467	15	seen	see	VERB
dss-287	467	16	as	as	ADP
dss-287	467	17	a	a	DET
dss-287	467	18	disadvantage	disadvantage	NOUN
dss-287	467	19	.	.	PUNCT
dss-287	468	1	its	its	PRON
dss-287	468	2	high	high	ADJ
dss-287	468	3	magnification	magnification	NOUN
dss-287	468	4	makes	make	VERB
dss-287	468	5	it	it	PRON
dss-287	468	6	well	well	ADV
dss-287	468	7	-	-	PUNCT
dss-287	468	8	suited	suited	ADJ
dss-287	468	9	for	for	ADP
dss-287	468	10	observing	observe	VERB
dss-287	468	11	the	the	DET
dss-287	468	12	moon	moon	NOUN
dss-287	468	13	,	,	PUNCT
dss-287	468	14	planets	planet	NOUN
dss-287	468	15	,	,	PUNCT
dss-287	468	16	and	and	CCONJ
dss-287	468	17	double	double	ADJ
dss-287	468	18	stars	star	NOUN
dss-287	468	19	.	.	PUNCT
dss-287	469	1	however	however	ADV
dss-287	469	2	,	,	PUNCT
dss-287	469	3	it	it	PRON
dss-287	469	4	has	have	VERB
dss-287	469	5	a	a	DET
dss-287	469	6	narrow	narrow	ADJ
dss-287	469	7	usable	usable	ADJ
dss-287	469	8	field	field	NOUN
dss-287	469	9	of	of	ADP
dss-287	469	10	view	view	NOUN
dss-287	469	11	and	and	CCONJ
dss-287	469	12	noticeable	noticeable	ADJ
dss-287	469	13	off	off	ADP
dss-287	469	14	-	-	PUNCT
dss-287	469	15	axis	axis	NOUN
dss-287	469	16	distortions	distortion	NOUN
dss-287	469	17	.	.	PUNCT
dss-287	470	1	the	the	DET
dss-287	470	2	primary	primary	NOUN
dss-287	470	3	is	be	AUX
dss-287	470	4	an	an	DET
dss-287	470	5	ellipsoid	ellipsoid	NOUN
dss-287	470	6	,	,	PUNCT
dss-287	470	7	and	and	CCONJ
dss-287	470	8	the	the	DET
dss-287	470	9	secondary	secondary	ADJ
dss-287	470	10	paraboloid	paraboloid	NOUN
dss-287	470	11	.	.	PUNCT
dss-287	471	1	the	the	DET
dss-287	471	2	cassegrain	cassegrain	NOUN
dss-287	471	3	telescope	telescope	NOUN
dss-287	471	4	(	(	PUNCT
dss-287	471	5	f/4	f/4	NOUN
dss-287	471	6	f/12	f/12	ADJ
dss-287	471	7	)	)	PUNCT
dss-287	471	8	,	,	PUNCT
dss-287	471	9	proposed	propose	VERB
dss-287	471	10	by	by	ADP
dss-287	471	11	mersenne	mersenne	PROPN
dss-287	471	12	and	and	CCONJ
dss-287	471	13	later	later	ADV
dss-287	471	14	cassegrain	cassegrain	NOUN
dss-287	471	15	,	,	PUNCT
dss-287	471	16	offers	offer	VERB
dss-287	471	17	a	a	DET
dss-287	471	18	long	long	ADJ
dss-287	471	19	focal	focal	ADJ
dss-287	471	20	length	length	NOUN
dss-287	471	21	in	in	ADP
dss-287	471	22	a	a	DET
dss-287	471	23	compact	compact	ADJ
dss-287	471	24	tube	tube	NOUN
dss-287	471	25	.	.	PUNCT
dss-287	472	1	while	while	SCONJ
dss-287	472	2	its	its	PRON
dss-287	472	3	usable	usable	ADJ
dss-287	472	4	field	field	NOUN
dss-287	472	5	is	be	AUX
dss-287	472	6	narrow	narrow	ADJ
dss-287	472	7	and	and	CCONJ
dss-287	472	8	off	off	ADP
dss-287	472	9	-	-	PUNCT
dss-287	472	10	axis	axis	NOUN
dss-287	472	11	distortions	distortion	NOUN
dss-287	472	12	are	be	AUX
dss-287	472	13	present	present	ADJ
dss-287	472	14	,	,	PUNCT
dss-287	472	15	its	its	PRON
dss-287	472	16	high	high	ADJ
dss-287	472	17	magnification	magnification	NOUN
dss-287	472	18	excels	excel	NOUN
dss-287	472	19	for	for	ADP
dss-287	472	20	observing	observe	VERB
dss-287	472	21	the	the	DET
dss-287	472	22	moon	moon	NOUN
dss-287	472	23	,	,	PUNCT
dss-287	472	24	planets	planet	NOUN
dss-287	472	25	,	,	PUNCT
dss-287	472	26	and	and	CCONJ
dss-287	472	27	double	double	ADJ
dss-287	472	28	stars	star	NOUN
dss-287	472	29	,	,	PUNCT
dss-287	472	30	and	and	CCONJ
dss-287	472	31	allows	allow	VERB
dss-287	472	32	for	for	ADP
dss-287	472	33	more	more	ADV
dss-287	472	34	comfortable	comfortable	ADJ
dss-287	472	35	eyepieces	eyepiece	NOUN
dss-287	472	36	.	.	PUNCT
dss-287	473	1	the	the	DET
dss-287	473	2	short	short	ADJ
dss-287	473	3	tube	tube	NOUN
dss-287	473	4	provides	provide	VERB
dss-287	473	5	better	well	ADJ
dss-287	473	6	balance	balance	NOUN
dss-287	473	7	and	and	CCONJ
dss-287	473	8	stability	stability	NOUN
dss-287	473	9	.	.	PUNCT
dss-287	474	1	the	the	DET
dss-287	474	2	primary	primary	NOUN
dss-287	474	3	is	be	AUX
dss-287	474	4	a	a	DET
dss-287	474	5	paraboloid	paraboloid	NOUN
dss-287	474	6	and	and	CCONJ
dss-287	474	7	the	the	DET
dss-287	474	8	secondary	secondary	ADJ
dss-287	474	9	hyperboloid	hyperboloid	NOUN
dss-287	474	10	.	.	PUNCT
dss-287	475	1	the	the	DET
dss-287	475	2	ritchey	ritchey	NOUN
dss-287	475	3	-	-	PUNCT
dss-287	475	4	chrétien	chrétien	PROPN
dss-287	475	5	(	(	PUNCT
dss-287	475	6	rc	rc	PROPN
dss-287	475	7	)	)	PUNCT
dss-287	475	8	design	design	NOUN
dss-287	475	9	(	(	PUNCT
dss-287	475	10	f/8	f/8	NOUN
dss-287	475	11	f/10	f/10	ADJ
dss-287	475	12	)	)	PUNCT
dss-287	475	13	,	,	PUNCT
dss-287	475	14	based	base	VERB
dss-287	475	15	on	on	ADP
dss-287	475	16	schwarzschild	schwarzschild	NOUN
dss-287	475	17	's	's	PART
dss-287	475	18	ideas	idea	NOUN
dss-287	475	19	,	,	PUNCT
dss-287	475	20	eliminated	eliminate	VERB
dss-287	475	21	spherical	spherical	ADJ
dss-287	475	22	aberration	aberration	NOUN
dss-287	475	23	and	and	CCONJ
dss-287	475	24	coma	coma	NOUN
dss-287	475	25	found	find	VERB
dss-287	475	26	in	in	ADP
dss-287	475	27	earlier	early	ADJ
dss-287	475	28	reflectors	reflector	NOUN
dss-287	475	29	.	.	PUNCT
dss-287	476	1	modern	modern	ADJ
dss-287	476	2	rcs	rcs	PROPN
dss-287	476	3	often	often	ADV
dss-287	476	4	have	have	VERB
dss-287	476	5	higher	high	ADJ
dss-287	476	6	secondary	secondary	ADJ
dss-287	476	7	magnification	magnification	NOUN
dss-287	476	8	(	(	PUNCT
dss-287	476	9	smaller	small	ADJ
dss-287	476	10	obstruction	obstruction	NOUN
dss-287	476	11	)	)	PUNCT
dss-287	476	12	and	and	CCONJ
dss-287	476	13	surfaces	surface	NOUN
dss-287	476	14	closer	close	ADV
dss-287	476	15	to	to	ADP
dss-287	476	16	a	a	DET
dss-287	476	17	paraboloid	paraboloid	ADJ
dss-287	476	18	.	.	PUNCT
dss-287	477	1	rcs	rcs	PROPN
dss-287	477	2	produce	produce	VERB
dss-287	477	3	perfectly	perfectly	ADV
dss-287	477	4	round	round	ADJ
dss-287	477	5	star	star	NOUN
dss-287	477	6	images	image	NOUN
dss-287	477	7	,	,	PUNCT
dss-287	477	8	ideal	ideal	NOUN
dss-287	477	9	for	for	ADP
dss-287	477	10	astrophotography	astrophotography	NOUN
dss-287	477	11	,	,	PUNCT
dss-287	477	12	and	and	CCONJ
dss-287	477	13	are	be	AUX
dss-287	477	14	common	common	ADJ
dss-287	477	15	in	in	ADP
dss-287	477	16	very	very	ADV
dss-287	477	17	large	large	ADJ
dss-287	477	18	telescopes	telescope	NOUN
dss-287	477	19	.	.	PUNCT
dss-287	478	1	however	however	ADV
dss-287	478	2	,	,	PUNCT
dss-287	478	3	they	they	PRON
dss-287	478	4	exhibit	exhibit	VERB
dss-287	478	5	significant	significant	ADJ
dss-287	478	6	astigmatism	astigmatism	NOUN
dss-287	478	7	beyond	beyond	ADP
dss-287	478	8	a	a	DET
dss-287	478	9	0.7	0.7	NUM
dss-287	478	10	°	°	ADJ
dss-287	478	11	field	field	NOUN
dss-287	478	12	and	and	CCONJ
dss-287	478	13	have	have	VERB
dss-287	478	14	the	the	DET
dss-287	478	15	most	most	ADV
dss-287	478	16	pronounced	pronounce	VERB
dss-287	478	17	field	field	NOUN
dss-287	478	18	curvature	curvature	NOUN
dss-287	478	19	of	of	ADP
dss-287	478	20	any	any	DET
dss-287	478	21	design	design	NOUN
dss-287	478	22	,	,	PUNCT
dss-287	478	23	causing	cause	VERB
dss-287	478	24	stars	star	NOUN
dss-287	478	25	at	at	ADP
dss-287	478	26	the	the	DET
dss-287	478	27	image	image	NOUN
dss-287	478	28	edges	edge	VERB
dss-287	478	29	to	to	PART
dss-287	478	30	appear	appear	VERB
dss-287	478	31	larger	large	ADJ
dss-287	478	32	.	.	PUNCT
dss-287	479	1	both	both	PRON
dss-287	479	2	primary	primary	ADJ
dss-287	479	3	and	and	CCONJ
dss-287	479	4	secondary	secondary	ADJ
dss-287	479	5	are	be	AUX
dss-287	479	6	hyperboloids	hyperboloid	NOUN
dss-287	479	7	.	.	PUNCT
dss-287	480	1	the	the	DET
dss-287	480	2	dall	dall	PROPN
dss-287	480	3	-	-	PUNCT
dss-287	480	4	kirkham	kirkham	PROPN
dss-287	480	5	design	design	NOUN
dss-287	480	6	(	(	PUNCT
dss-287	480	7	f/12	f/12	ADJ
dss-287	480	8	–	–	PUNCT
dss-287	480	9	f/20	f/20	PROPN
dss-287	480	10	)	)	PUNCT
dss-287	480	11	uses	uses	AUX
dss-287	480	12	easily	easily	ADV
dss-287	480	13	manufactured	manufacture	VERB
dss-287	480	14	and	and	CCONJ
dss-287	480	15	tested	test	VERB
dss-287	480	16	mirrors	mirror	NOUN
dss-287	480	17	,	,	PUNCT
dss-287	480	18	lowering	lower	VERB
dss-287	480	19	costs	cost	NOUN
dss-287	480	20	and	and	CCONJ
dss-287	480	21	easing	ease	VERB
dss-287	480	22	collimation	collimation	NOUN
dss-287	480	23	compared	compare	VERB
dss-287	480	24	to	to	ADP
dss-287	480	25	cassegrain	cassegrain	NOUN
dss-287	480	26	or	or	CCONJ
dss-287	480	27	rc	rc	PROPN
dss-287	480	28	telescopes	telescope	NOUN
dss-287	480	29	.	.	PUNCT
dss-287	481	1	however	however	ADV
dss-287	481	2	,	,	PUNCT
dss-287	481	3	it	it	PRON
dss-287	481	4	suffers	suffer	VERB
dss-287	481	5	from	from	ADP
dss-287	481	6	significant	significant	ADJ
dss-287	481	7	coma	coma	NOUN
dss-287	481	8	(	(	PUNCT
dss-287	481	9	2	2	NUM
dss-287	481	10	-	-	SYM
dss-287	481	11	6	6	NUM
dss-287	481	12	times	time	NOUN
dss-287	481	13	more	more	ADJ
dss-287	481	14	than	than	ADP
dss-287	481	15	a	a	DET
dss-287	481	16	classic	classic	ADJ
dss-287	481	17	cassegrain	cassegrain	NOUN
dss-287	481	18	)	)	PUNCT
dss-287	481	19	and	and	CCONJ
dss-287	481	20	a	a	DET
dss-287	481	21	narrow	narrow	ADJ
dss-287	481	22	field	field	NOUN
dss-287	481	23	,	,	PUNCT
dss-287	481	24	making	make	VERB
dss-287	481	25	it	it	PRON
dss-287	481	26	poor	poor	ADJ
dss-287	481	27	for	for	ADP
dss-287	481	28	wide	wide	ADJ
dss-287	481	29	-	-	PUNCT
dss-287	481	30	field	field	NOUN
dss-287	481	31	photography	photography	NOUN
dss-287	481	32	.	.	PUNCT
dss-287	482	1	image	image	NOUN
dss-287	482	2	quality	quality	NOUN
dss-287	482	3	worsens	worsen	VERB
dss-287	482	4	with	with	ADP
dss-287	482	5	higher	high	ADJ
dss-287	482	6	secondary	secondary	ADJ
dss-287	482	7	magnification	magnification	NOUN
dss-287	482	8	.	.	PUNCT
dss-287	483	1	the	the	DET
dss-287	483	2	primary	primary	NOUN
dss-287	483	3	is	be	AUX
dss-287	483	4	a	a	DET
dss-287	483	5	prolate	prolate	ADJ
dss-287	483	6	ellipsoid	ellipsoid	NOUN
dss-287	483	7	,	,	PUNCT
dss-287	483	8	and	and	CCONJ
dss-287	483	9	the	the	DET
dss-287	483	10	secondary	secondary	ADJ
dss-287	483	11	is	be	AUX
dss-287	483	12	spherical	spherical	ADJ
dss-287	483	13	.	.	PUNCT
dss-287	484	1	the	the	DET
dss-287	484	2	pressman	pressman	NOUN
dss-287	484	3	-	-	PUNCT
dss-287	484	4	camichel	camichel	PROPN
dss-287	484	5	design	design	NOUN
dss-287	484	6	,	,	PUNCT
dss-287	484	7	with	with	ADP
dss-287	484	8	reversed	reverse	VERB
dss-287	484	9	mirror	mirror	NOUN
dss-287	484	10	shapes	shape	NOUN
dss-287	484	11	,	,	PUNCT
dss-287	484	12	has	have	VERB
dss-287	484	13	even	even	ADV
dss-287	484	14	more	more	ADJ
dss-287	484	15	coma	coma	NOUN
dss-287	484	16	,	,	PUNCT
dss-287	484	17	4	4	NUM
dss-287	484	18	-	-	SYM
dss-287	484	19	12	12	NUM
dss-287	484	20	times	time	NOUN
dss-287	484	21	that	that	PRON
dss-287	484	22	of	of	ADP
dss-287	484	23	a	a	DET
dss-287	484	24	classic	classic	ADJ
dss-287	484	25	cassegrain	cassegrain	NOUN
dss-287	485	1	[	[	X
dss-287	485	2	155	155	NUM
dss-287	485	3	]	]	PUNCT
dss-287	485	4	.	.	PUNCT
dss-287	486	1	5.1	5.1	NUM
dss-287	486	2	primary	primary	ADJ
dss-287	486	3	mirror	mirror	NOUN
dss-287	486	4	design	design	NOUN
dss-287	486	5	the	the	DET
dss-287	486	6	primary	primary	ADJ
dss-287	486	7	mirror	mirror	NOUN
dss-287	486	8	collects	collect	VERB
dss-287	486	9	and	and	CCONJ
dss-287	486	10	focuses	focus	VERB
dss-287	486	11	incoming	incoming	ADJ
dss-287	486	12	light	light	NOUN
dss-287	486	13	,	,	PUNCT
dss-287	486	14	with	with	ADP
dss-287	486	15	its	its	PRON
dss-287	486	16	aperture	aperture	NOUN
dss-287	486	17	(	(	PUNCT
dss-287	486	18	d	d	X
dss-287	486	19	)	)	PUNCT
dss-287	486	20	determining	determine	VERB
dss-287	486	21	light	light	ADJ
dss-287	486	22	-	-	PUNCT
dss-287	486	23	gathering	gather	VERB
dss-287	486	24	power	power	NOUN
dss-287	486	25	and	and	CCONJ
dss-287	486	26	its	its	PRON
dss-287	486	27	focal	focal	ADJ
dss-287	486	28	length	length	NOUN
dss-287	486	29	(	(	PUNCT
dss-287	486	30	f	f	X
dss-287	486	31	)	)	PUNCT
dss-287	486	32	setting	set	VERB
dss-287	486	33	the	the	DET
dss-287	486	34	image	image	NOUN
dss-287	486	35	scale	scale	NOUN
dss-287	486	36	.	.	PUNCT
dss-287	487	1	most	most	ADJ
dss-287	487	2	modern	modern	ADJ
dss-287	487	3	reflectors	reflector	NOUN
dss-287	487	4	use	use	VERB
dss-287	487	5	a	a	DET
dss-287	487	6	parabolic	parabolic	ADJ
dss-287	487	7	mirror	mirror	NOUN
dss-287	487	8	(	(	PUNCT
dss-287	487	9	or	or	CCONJ
dss-287	487	10	other	other	ADJ
dss-287	487	11	shapes	shape	NOUN
dss-287	487	12	,	,	PUNCT
dss-287	487	13	see	see	VERB
dss-287	487	14	fig	fig	NOUN
dss-287	487	15	.	.	PUNCT
dss-287	488	1	6	6	NUM
dss-287	488	2	)	)	PUNCT
dss-287	488	3	to	to	PART
dss-287	488	4	eliminate	eliminate	VERB
dss-287	488	5	spherical	spherical	ADJ
dss-287	488	6	aberration	aberration	NOUN
dss-287	488	7	,	,	PUNCT
dss-287	488	8	ensuring	ensure	VERB
dss-287	488	9	a	a	DET
dss-287	488	10	sharp	sharp	ADJ
dss-287	488	11	focus	focus	NOUN
dss-287	488	12	for	for	ADP
dss-287	488	13	on	on	ADP
dss-287	488	14	-	-	PUNCT
dss-287	488	15	axis	axis	NOUN
dss-287	488	16	rays	ray	NOUN
dss-287	488	17	[	[	X
dss-287	488	18	50	50	NUM
dss-287	488	19	]	]	PUNCT
dss-287	488	20	.	.	PUNCT
dss-287	489	1	materials	material	NOUN
dss-287	489	2	like	like	ADP
dss-287	489	3	pyrex	pyrex	NOUN
dss-287	489	4	or	or	CCONJ
dss-287	489	5	zerodur	zerodur	NOUN
dss-287	489	6	are	be	AUX
dss-287	489	7	favored	favor	VERB
dss-287	489	8	for	for	ADP
dss-287	489	9	their	their	PRON
dss-287	489	10	low	low	ADJ
dss-287	489	11	thermal	thermal	ADJ
dss-287	489	12	expansion	expansion	NOUN
dss-287	489	13	,	,	PUNCT
dss-287	489	14	minimizing	minimize	VERB
dss-287	489	15	distortion	distortion	NOUN
dss-287	489	16	from	from	ADP
dss-287	489	17	temperature	temperature	NOUN
dss-287	489	18	changes	change	NOUN
dss-287	489	19	.	.	PUNCT
dss-287	490	1	the	the	DET
dss-287	490	2	mirror	mirror	NOUN
dss-287	490	3	is	be	AUX
dss-287	490	4	coated	coat	VERB
dss-287	490	5	with	with	ADP
dss-287	490	6	aluminum	aluminum	NOUN
dss-287	490	7	or	or	CCONJ
dss-287	490	8	silver	silver	NOUN
dss-287	490	9	via	via	ADP
dss-287	490	10	vacuum	vacuum	NOUN
dss-287	490	11	deposition	deposition	NOUN
dss-287	490	12	to	to	PART
dss-287	490	13	achieve	achieve	VERB
dss-287	490	14	high	high	ADJ
dss-287	490	15	reflectivity	reflectivity	NOUN
dss-287	490	16	(	(	PUNCT
dss-287	490	17	typically	typically	ADV
dss-287	490	18	>	>	X
dss-287	490	19	90	90	NUM
dss-287	490	20	%	%	NOUN
dss-287	490	21	)	)	PUNCT
dss-287	490	22	across	across	ADP
dss-287	490	23	visible	visible	ADJ
dss-287	490	24	wavelengths	wavelength	NOUN
dss-287	490	25	.	.	PUNCT
dss-287	491	1	5.2	5.2	NUM
dss-287	491	2	secondary	secondary	ADJ
dss-287	491	3	mirror	mirror	NOUN
dss-287	491	4	and	and	CCONJ
dss-287	491	5	optical	optical	ADJ
dss-287	491	6	configuration	configuration	NOUN
dss-287	491	7	the	the	DET
dss-287	491	8	secondary	secondary	ADJ
dss-287	491	9	mirror	mirror	NOUN
dss-287	491	10	in	in	ADP
dss-287	491	11	reflectors	reflector	NOUN
dss-287	491	12	redirects	redirect	VERB
dss-287	491	13	light	light	NOUN
dss-287	491	14	to	to	ADP
dss-287	491	15	the	the	DET
dss-287	491	16	eyepiece	eyepiece	NOUN
dss-287	491	17	or	or	CCONJ
dss-287	491	18	detector	detector	NOUN
dss-287	491	19	.	.	PUNCT
dss-287	492	1	in	in	ADP
dss-287	492	2	the	the	DET
dss-287	492	3	newtonian	newtonian	ADJ
dss-287	492	4	design	design	NOUN
dss-287	492	5	,	,	PUNCT
dss-287	492	6	a	a	DET
dss-287	492	7	flat	flat	ADJ
dss-287	492	8	diagonal	diagonal	ADJ
dss-287	492	9	mirror	mirror	NOUN
dss-287	492	10	reflects	reflect	VERB
dss-287	492	11	light	light	NOUN
dss-287	492	12	to	to	ADP
dss-287	492	13	the	the	DET
dss-287	492	14	side	side	NOUN
dss-287	492	15	of	of	ADP
dss-287	492	16	the	the	DET
dss-287	492	17	tube	tube	NOUN
dss-287	492	18	[	[	X
dss-287	492	19	52	52	NUM
dss-287	492	20	]	]	PUNCT
dss-287	492	21	.	.	PUNCT
dss-287	493	1	the	the	DET
dss-287	493	2	cassegrain	cassegrain	PROPN
dss-287	493	3	configuration	configuration	NOUN
dss-287	493	4	uses	use	VERB
dss-287	493	5	a	a	DET
dss-287	493	6	convex	convex	ADJ
dss-287	493	7	hyperbolic	hyperbolic	ADJ
dss-287	493	8	secondary	secondary	ADJ
dss-287	493	9	to	to	PART
dss-287	493	10	fold	fold	VERB
dss-287	493	11	the	the	DET
dss-287	493	12	light	light	ADJ
dss-287	493	13	path	path	NOUN
dss-287	493	14	back	back	ADV
dss-287	493	15	through	through	ADP
dss-287	493	16	a	a	DET
dss-287	493	17	hole	hole	NOUN
dss-287	493	18	in	in	ADP
dss-287	493	19	the	the	DET
dss-287	493	20	primary	primary	NOUN
dss-287	493	21	,	,	PUNCT
dss-287	493	22	extending	extend	VERB
dss-287	493	23	the	the	DET
dss-287	493	24	effective	effective	ADJ
dss-287	493	25	focal	focal	ADJ
dss-287	493	26	length	length	NOUN
dss-287	493	27	within	within	ADP
dss-287	493	28	a	a	DET
dss-287	493	29	compact	compact	ADJ
dss-287	493	30	tube	tube	NOUN
dss-287	493	31	.	.	PUNCT
dss-287	494	1	the	the	DET
dss-287	494	2	ritchey	ritchey	NOUN
dss-287	494	3	-	-	PUNCT
dss-287	494	4	chrétien	chrétien	PROPN
dss-287	494	5	variant	variant	NOUN
dss-287	494	6	employs	employ	VERB
dss-287	494	7	two	two	NUM
dss-287	494	8	hyperbolic	hyperbolic	ADJ
dss-287	494	9	mirrors	mirror	NOUN
dss-287	494	10	to	to	PART
dss-287	494	11	correct	correct	VERB
dss-287	494	12	coma	coma	NOUN
dss-287	494	13	,	,	PUNCT
dss-287	494	14	enhancing	enhance	VERB
dss-287	494	15	off	off	ADP
dss-287	494	16	-	-	PUNCT
dss-287	494	17	axis	axis	NOUN
dss-287	494	18	image	image	NOUN
dss-287	494	19	quality	quality	NOUN
dss-287	494	20	for	for	ADP
dss-287	494	21	wide	wide	ADJ
dss-287	494	22	-	-	PUNCT
dss-287	494	23	field	field	NOUN
dss-287	494	24	observations	observation	NOUN
dss-287	494	25	[	[	X
dss-287	494	26	3	3	NUM
dss-287	494	27	]	]	PUNCT
dss-287	494	28	.	.	PUNCT
dss-287	495	1	these	these	PRON
dss-287	495	2	can	can	AUX
dss-287	495	3	be	be	AUX
dss-287	495	4	seen	see	VERB
dss-287	495	5	in	in	ADP
dss-287	495	6	fig	fig	NOUN
dss-287	495	7	.	.	PUNCT
dss-287	496	1	6	6	X
dss-287	496	2	.	.	X
dss-287	496	3	generally	generally	ADV
dss-287	496	4	,	,	PUNCT
dss-287	496	5	the	the	DET
dss-287	496	6	secondary	secondary	ADJ
dss-287	496	7	’s	’s	NOUN
dss-287	496	8	size	size	NOUN
dss-287	496	9	and	and	CCONJ
dss-287	496	10	tilt	tilt	NOUN
dss-287	496	11	are	be	AUX
dss-287	496	12	optimized	optimize	VERB
dss-287	496	13	to	to	PART
dss-287	496	14	minimize	minimize	VERB
dss-287	496	15	obstruction	obstruction	NOUN
dss-287	496	16	while	while	SCONJ
dss-287	496	17	maintaining	maintain	VERB
dss-287	496	18	alignment	alignment	NOUN
dss-287	496	19	with	with	ADP
dss-287	496	20	the	the	DET
dss-287	496	21	primary	primary	ADJ
dss-287	496	22	mirror	mirror	NOUN
dss-287	496	23	[	[	X
dss-287	496	24	5,6	5,6	NUM
dss-287	496	25	]	]	X
dss-287	496	26	.	.	PUNCT
dss-287	497	1	5.3	5.3	NUM
dss-287	497	2	tube	tube	NOUN
dss-287	497	3	assembly	assembly	NOUN
dss-287	497	4	and	and	CCONJ
dss-287	497	5	mount	mount	VERB
dss-287	497	6	the	the	DET
dss-287	497	7	tube	tube	NOUN
dss-287	497	8	supports	support	VERB
dss-287	497	9	the	the	DET
dss-287	497	10	mirrors	mirror	NOUN
dss-287	497	11	and	and	CCONJ
dss-287	497	12	shields	shield	VERB
dss-287	497	13	them	they	PRON
dss-287	497	14	from	from	ADP
dss-287	497	15	stray	stray	ADJ
dss-287	497	16	light	light	NOUN
dss-287	497	17	.	.	PUNCT
dss-287	498	1	open	open	ADJ
dss-287	498	2	truss	truss	ADJ
dss-287	498	3	designs	design	NOUN
dss-287	498	4	,	,	PUNCT
dss-287	498	5	common	common	ADJ
dss-287	498	6	in	in	ADP
dss-287	498	7	large	large	ADJ
dss-287	498	8	reflectors	reflector	NOUN
dss-287	498	9	,	,	PUNCT
dss-287	498	10	reduce	reduce	VERB
dss-287	498	11	weight	weight	NOUN
dss-287	498	12	and	and	CCONJ
dss-287	498	13	thermal	thermal	ADJ
dss-287	498	14	gradients	gradient	NOUN
dss-287	498	15	,	,	PUNCT
dss-287	498	16	while	while	SCONJ
dss-287	498	17	solid	solid	ADJ
dss-287	498	18	tubes	tube	NOUN
dss-287	498	19	suffice	suffice	VERB
dss-287	498	20	for	for	ADP
dss-287	498	21	smaller	small	ADJ
dss-287	498	22	instruments	instrument	NOUN
dss-287	498	23	.	.	PUNCT
dss-287	499	1	the	the	DET
dss-287	499	2	mount	mount	PROPN
dss-287	499	3	,	,	PUNCT
dss-287	499	4	dss	dss	NOUN
dss-287	499	5	vol	vol	NOUN
dss-287	499	6	.	.	PROPN
dss-287	500	1	6	6	NUM
dss-287	500	2	,	,	PUNCT
dss-287	500	3	no	no	INTJ
dss-287	500	4	.	.	NOUN
dss-287	500	5	1	1	NUM
dss-287	500	6	,	,	PUNCT
dss-287	500	7	2025	2025	NUM
dss-287	500	8	,	,	PUNCT
dss-287	500	9	pp.49	pp.49	NOUN
dss-287	500	10	-	-	SYM
dss-287	500	11	90	90	NUM
dss-287	500	12	67	67	NUM
dss-287	500	13	typically	typically	ADV
dss-287	500	14	equatorial	equatorial	ADJ
dss-287	500	15	or	or	CCONJ
dss-287	500	16	alt	alt	ADJ
dss-287	500	17	-	-	PUNCT
dss-287	500	18	azimuth	azimuth	ADV
dss-287	500	19	,	,	PUNCT
dss-287	500	20	ensures	ensure	VERB
dss-287	500	21	precise	precise	ADJ
dss-287	500	22	tracking	tracking	NOUN
dss-287	500	23	of	of	ADP
dss-287	500	24	celestial	celestial	ADJ
dss-287	500	25	objects	object	NOUN
dss-287	500	26	.	.	PUNCT
dss-287	501	1	computer	computer	NOUN
dss-287	501	2	-	-	PUNCT
dss-287	501	3	controlled	control	VERB
dss-287	501	4	altazimuth	altazimuth	NOUN
dss-287	501	5	mounts	mount	NOUN
dss-287	501	6	with	with	ADP
dss-287	501	7	derotators	derotator	NOUN
dss-287	501	8	are	be	AUX
dss-287	501	9	standard	standard	ADJ
dss-287	501	10	in	in	ADP
dss-287	501	11	modern	modern	ADJ
dss-287	501	12	observatories	observatory	NOUN
dss-287	501	13	,	,	PUNCT
dss-287	501	14	compensating	compensate	VERB
dss-287	501	15	for	for	ADP
dss-287	501	16	field	field	NOUN
dss-287	501	17	rotation	rotation	NOUN
dss-287	501	18	.	.	PUNCT
dss-287	502	1	5.4	5.4	NUM
dss-287	502	2	testing	testing	NOUN
dss-287	502	3	and	and	CCONJ
dss-287	502	4	alignment	alignment	NOUN
dss-287	502	5	mirror	mirror	NOUN
dss-287	502	6	figuring	figuring	NOUN
dss-287	502	7	is	be	AUX
dss-287	502	8	tested	test	VERB
dss-287	502	9	using	use	VERB
dss-287	502	10	interferometry	interferometry	NOUN
dss-287	502	11	or	or	CCONJ
dss-287	502	12	the	the	DET
dss-287	502	13	foucault	foucault	PROPN
dss-287	502	14	test	test	NOUN
dss-287	502	15	to	to	PART
dss-287	502	16	verify	verify	VERB
dss-287	502	17	surface	surface	NOUN
dss-287	502	18	accuracy	accuracy	NOUN
dss-287	502	19	to	to	ADP
dss-287	502	20	within	within	ADP
dss-287	502	21	a	a	DET
dss-287	502	22	fraction	fraction	NOUN
dss-287	502	23	of	of	ADP
dss-287	502	24	a	a	DET
dss-287	502	25	wavelength	wavelength	NOUN
dss-287	502	26	.	.	PUNCT
dss-287	503	1	collimation	collimation	NOUN
dss-287	503	2	,	,	PUNCT
dss-287	503	3	the	the	DET
dss-287	503	4	alignment	alignment	NOUN
dss-287	503	5	of	of	ADP
dss-287	503	6	optical	optical	ADJ
dss-287	503	7	elements	element	NOUN
dss-287	503	8	,	,	PUNCT
dss-287	503	9	is	be	AUX
dss-287	503	10	critical	critical	ADJ
dss-287	503	11	and	and	CCONJ
dss-287	503	12	often	often	ADV
dss-287	503	13	achieved	achieve	VERB
dss-287	503	14	with	with	ADP
dss-287	503	15	laser	laser	NOUN
dss-287	503	16	or	or	CCONJ
dss-287	503	17	star	star	NOUN
dss-287	503	18	tests	test	NOUN
dss-287	503	19	[	[	X
dss-287	503	20	54	54	NUM
dss-287	503	21	]	]	PUNCT
dss-287	503	22	.	.	PUNCT
dss-287	504	1	for	for	ADP
dss-287	504	2	segmented	segment	VERB
dss-287	504	3	mirrors	mirror	NOUN
dss-287	504	4	,	,	PUNCT
dss-287	504	5	as	as	ADP
dss-287	504	6	in	in	ADP
dss-287	504	7	the	the	DET
dss-287	504	8	keck	keck	PROPN
dss-287	504	9	telescope	telescope	NOUN
dss-287	504	10	,	,	PUNCT
dss-287	504	11	active	active	ADJ
dss-287	504	12	control	control	NOUN
dss-287	504	13	systems	system	NOUN
dss-287	504	14	adjust	adjust	VERB
dss-287	504	15	individual	individual	ADJ
dss-287	504	16	segments	segment	NOUN
dss-287	504	17	in	in	ADP
dss-287	504	18	real	real	ADJ
dss-287	504	19	time	time	NOUN
dss-287	504	20	.	.	PUNCT
dss-287	505	1	5.5	5.5	NUM
dss-287	505	2	applications	application	NOUN
dss-287	505	3	reflector	reflector	NOUN
dss-287	505	4	telescopes	telescope	NOUN
dss-287	505	5	dominate	dominate	VERB
dss-287	505	6	professional	professional	ADJ
dss-287	505	7	astronomy	astronomy	NOUN
dss-287	505	8	due	due	ADP
dss-287	505	9	to	to	ADP
dss-287	505	10	their	their	PRON
dss-287	505	11	scalability	scalability	NOUN
dss-287	505	12	and	and	CCONJ
dss-287	505	13	versatility	versatility	NOUN
dss-287	505	14	.	.	PUNCT
dss-287	506	1	large	large	ADJ
dss-287	506	2	reflectors	reflector	NOUN
dss-287	506	3	,	,	PUNCT
dss-287	506	4	such	such	ADJ
dss-287	506	5	as	as	ADP
dss-287	506	6	the	the	DET
dss-287	506	7	10	10	NUM
dss-287	506	8	-	-	PUNCT
dss-287	506	9	meter	meter	NOUN
dss-287	506	10	keck	keck	PROPN
dss-287	506	11	telescopes	telescope	NOUN
dss-287	506	12	,	,	PUNCT
dss-287	506	13	enable	enable	VERB
dss-287	506	14	observations	observation	NOUN
dss-287	506	15	of	of	ADP
dss-287	506	16	distant	distant	ADJ
dss-287	506	17	galaxies	galaxy	NOUN
dss-287	506	18	,	,	PUNCT
dss-287	506	19	quasars	quasar	NOUN
dss-287	506	20	,	,	PUNCT
dss-287	506	21	and	and	CCONJ
dss-287	506	22	exoplanets	exoplanet	NOUN
dss-287	506	23	,	,	PUNCT
dss-287	506	24	leveraging	leverage	VERB
dss-287	506	25	their	their	PRON
dss-287	506	26	superior	superior	ADJ
dss-287	506	27	light	light	ADJ
dss-287	506	28	-	-	PUNCT
dss-287	506	29	gathering	gather	VERB
dss-287	506	30	capacity	capacity	NOUN
dss-287	506	31	.	.	PUNCT
dss-287	507	1	the	the	DET
dss-287	507	2	hubble	hubble	ADJ
dss-287	507	3	space	space	NOUN
dss-287	507	4	telescope	telescope	NOUN
dss-287	507	5	,	,	PUNCT
dss-287	507	6	a	a	DET
dss-287	507	7	ritchey	ritchey	NOUN
dss-287	507	8	-	-	PUNCT
dss-287	507	9	chrétien	chrétien	PROPN
dss-287	507	10	type	type	NOUN
dss-287	507	11	reflector	reflector	NOUN
dss-287	507	12	,	,	PUNCT
dss-287	507	13	has	have	AUX
dss-287	507	14	revolutionized	revolutionize	VERB
dss-287	507	15	cosmology	cosmology	NOUN
dss-287	507	16	with	with	ADP
dss-287	507	17	its	its	PRON
dss-287	507	18	deep	deep	ADJ
dss-287	507	19	-	-	PUNCT
dss-287	507	20	space	space	NOUN
dss-287	507	21	imaging	imaging	NOUN
dss-287	507	22	.	.	PUNCT
dss-287	508	1	in	in	ADP
dss-287	508	2	amateur	amateur	ADJ
dss-287	508	3	astronomy	astronomy	NOUN
dss-287	508	4	,	,	PUNCT
dss-287	508	5	newtonian	newtonian	ADJ
dss-287	508	6	reflectors	reflector	NOUN
dss-287	508	7	are	be	AUX
dss-287	508	8	popular	popular	ADJ
dss-287	508	9	for	for	ADP
dss-287	508	10	their	their	PRON
dss-287	508	11	cost	cost	NOUN
dss-287	508	12	-	-	PUNCT
dss-287	508	13	effectiveness	effectiveness	NOUN
dss-287	508	14	and	and	CCONJ
dss-287	508	15	performance	performance	NOUN
dss-287	508	16	in	in	ADP
dss-287	508	17	observing	observe	VERB
dss-287	508	18	nebulae	nebulae	ADJ
dss-287	508	19	and	and	CCONJ
dss-287	508	20	star	star	NOUN
dss-287	508	21	clusters	cluster	NOUN
dss-287	508	22	[	[	X
dss-287	508	23	53	53	NUM
dss-287	508	24	]	]	PUNCT
dss-287	508	25	.	.	PUNCT
dss-287	509	1	beyond	beyond	ADP
dss-287	509	2	astronomy	astronomy	NOUN
dss-287	509	3	,	,	PUNCT
dss-287	509	4	reflectors	reflector	NOUN
dss-287	509	5	are	be	AUX
dss-287	509	6	used	use	VERB
dss-287	509	7	in	in	ADP
dss-287	509	8	optical	optical	ADJ
dss-287	509	9	testing	testing	NOUN
dss-287	509	10	,	,	PUNCT
dss-287	509	11	laser	laser	NOUN
dss-287	509	12	communication	communication	NOUN
dss-287	509	13	,	,	PUNCT
dss-287	509	14	and	and	CCONJ
dss-287	509	15	solar	solar	ADJ
dss-287	509	16	concentrators	concentrator	NOUN
dss-287	509	17	,	,	PUNCT
dss-287	509	18	where	where	SCONJ
dss-287	509	19	large	large	ADJ
dss-287	509	20	apertures	aperture	NOUN
dss-287	509	21	and	and	CCONJ
dss-287	509	22	precise	precise	ADJ
dss-287	509	23	focusing	focusing	NOUN
dss-287	509	24	are	be	AUX
dss-287	509	25	advantageous	advantageous	ADJ
dss-287	509	26	[	[	X
dss-287	509	27	58	58	NUM
dss-287	509	28	]	]	PUNCT
dss-287	509	29	.	.	PUNCT
dss-287	510	1	their	their	PRON
dss-287	510	2	adaptability	adaptability	NOUN
dss-287	510	3	is	be	AUX
dss-287	510	4	enhanced	enhance	VERB
dss-287	510	5	by	by	ADP
dss-287	510	6	innovations	innovation	NOUN
dss-287	510	7	like	like	ADP
dss-287	510	8	adaptive	adaptive	ADJ
dss-287	510	9	optics	optic	NOUN
dss-287	510	10	,	,	PUNCT
dss-287	510	11	which	which	PRON
dss-287	510	12	correct	correct	VERB
dss-287	510	13	atmospheric	atmospheric	ADJ
dss-287	510	14	distortion	distortion	NOUN
dss-287	510	15	for	for	ADP
dss-287	510	16	ground	ground	NOUN
dss-287	510	17	-	-	PUNCT
dss-287	510	18	based	base	VERB
dss-287	510	19	observatories	observatory	NOUN
dss-287	510	20	[	[	X
dss-287	510	21	59	59	NUM
dss-287	510	22	]	]	PUNCT
dss-287	510	23	.	.	PUNCT
dss-287	511	1	reflector	reflector	PROPN
dss-287	511	2	telescopes	telescope	NOUN
dss-287	511	3	exemplify	exemplify	VERB
dss-287	511	4	the	the	DET
dss-287	511	5	synergy	synergy	NOUN
dss-287	511	6	of	of	ADP
dss-287	511	7	optical	optical	ADJ
dss-287	511	8	theory	theory	NOUN
dss-287	511	9	and	and	CCONJ
dss-287	511	10	engineering	engineering	NOUN
dss-287	511	11	precision	precision	NOUN
dss-287	511	12	,	,	PUNCT
dss-287	511	13	offering	offer	VERB
dss-287	511	14	unmatched	unmatched	ADJ
dss-287	511	15	capabilities	capability	NOUN
dss-287	511	16	for	for	ADP
dss-287	511	17	astronomical	astronomical	ADJ
dss-287	511	18	observation	observation	NOUN
dss-287	511	19	.	.	PUNCT
dss-287	512	1	from	from	ADP
dss-287	512	2	newton	newton	PROPN
dss-287	512	3	’s	’s	PART
dss-287	512	4	initial	initial	ADJ
dss-287	512	5	design	design	NOUN
dss-287	512	6	to	to	ADP
dss-287	512	7	modern	modern	ADJ
dss-287	512	8	segmented	segment	VERB
dss-287	512	9	and	and	CCONJ
dss-287	512	10	adaptive	adaptive	ADJ
dss-287	512	11	systems	system	NOUN
dss-287	512	12	,	,	PUNCT
dss-287	512	13	their	their	PRON
dss-287	512	14	evolution	evolution	NOUN
dss-287	512	15	reflects	reflect	VERB
dss-287	512	16	advances	advance	NOUN
dss-287	512	17	in	in	ADP
dss-287	512	18	materials	material	NOUN
dss-287	512	19	,	,	PUNCT
dss-287	512	20	manufacturing	manufacturing	NOUN
dss-287	512	21	,	,	PUNCT
dss-287	512	22	and	and	CCONJ
dss-287	512	23	computational	computational	ADJ
dss-287	512	24	techniques	technique	NOUN
dss-287	512	25	.	.	PUNCT
dss-287	513	1	the	the	DET
dss-287	513	2	design	design	NOUN
dss-287	513	3	process	process	NOUN
dss-287	513	4	,	,	PUNCT
dss-287	513	5	centered	center	VERB
dss-287	513	6	on	on	ADP
dss-287	513	7	crafting	craft	VERB
dss-287	513	8	parabolic	parabolic	NOUN
dss-287	513	9	mirrors	mirror	NOUN
dss-287	513	10	,	,	PUNCT
dss-287	513	11	optimizing	optimize	VERB
dss-287	513	12	optical	optical	ADJ
dss-287	513	13	layouts	layout	NOUN
dss-287	513	14	,	,	PUNCT
dss-287	513	15	and	and	CCONJ
dss-287	513	16	ensuring	ensure	VERB
dss-287	513	17	structural	structural	ADJ
dss-287	513	18	stability	stability	NOUN
dss-287	513	19	,	,	PUNCT
dss-287	513	20	underpins	underpin	VERB
dss-287	513	21	their	their	PRON
dss-287	513	22	success	success	NOUN
dss-287	513	23	across	across	ADP
dss-287	513	24	diverse	diverse	ADJ
dss-287	513	25	applications	application	NOUN
dss-287	513	26	.	.	PUNCT
dss-287	514	1	while	while	SCONJ
dss-287	514	2	smaller	small	ADJ
dss-287	514	3	refractors	refractor	NOUN
dss-287	514	4	excel	excel	VERB
dss-287	514	5	in	in	ADP
dss-287	514	6	planetary	planetary	ADJ
dss-287	514	7	imaging	imaging	NOUN
dss-287	514	8	,	,	PUNCT
dss-287	514	9	reflectors	reflector	NOUN
dss-287	514	10	dominate	dominate	VERB
dss-287	514	11	large	large	ADJ
dss-287	514	12	-	-	PUNCT
dss-287	514	13	scale	scale	NOUN
dss-287	514	14	research	research	NOUN
dss-287	514	15	due	due	ADP
dss-287	514	16	to	to	ADP
dss-287	514	17	their	their	PRON
dss-287	514	18	freedom	freedom	NOUN
dss-287	514	19	from	from	ADP
dss-287	514	20	chromatic	chromatic	ADJ
dss-287	514	21	aberration	aberration	NOUN
dss-287	514	22	and	and	CCONJ
dss-287	514	23	ability	ability	NOUN
dss-287	514	24	to	to	PART
dss-287	514	25	scale	scale	VERB
dss-287	514	26	to	to	ADP
dss-287	514	27	massive	massive	ADJ
dss-287	514	28	apertures	aperture	NOUN
dss-287	514	29	.	.	PUNCT
dss-287	515	1	future	future	ADJ
dss-287	515	2	developments	development	NOUN
dss-287	515	3	may	may	AUX
dss-287	515	4	focus	focus	VERB
dss-287	515	5	on	on	ADP
dss-287	515	6	lightweight	lightweight	ADJ
dss-287	515	7	mirrors	mirror	NOUN
dss-287	515	8	and	and	CCONJ
dss-287	515	9	ai	ai	AUX
dss-287	515	10	-	-	PUNCT
dss-287	515	11	driven	drive	VERB
dss-287	515	12	alignment	alignment	NOUN
dss-287	515	13	,	,	PUNCT
dss-287	515	14	further	far	ADV
dss-287	515	15	enhancing	enhance	VERB
dss-287	515	16	their	their	PRON
dss-287	515	17	potential	potential	NOUN
dss-287	515	18	.	.	PUNCT
dss-287	516	1	5.6	5.6	NUM
dss-287	516	2	image	image	NOUN
dss-287	516	3	quality	quality	NOUN
dss-287	516	4	in	in	ADP
dss-287	516	5	newtonian	newtonian	ADJ
dss-287	516	6	reflecting	reflect	VERB
dss-287	516	7	telescope	telescope	NOUN
dss-287	516	8	the	the	DET
dss-287	516	9	newtonian	newtonian	ADJ
dss-287	516	10	telescope	telescope	NOUN
dss-287	516	11	is	be	AUX
dss-287	516	12	among	among	ADP
dss-287	516	13	the	the	DET
dss-287	516	14	simplest	simple	ADJ
dss-287	516	15	and	and	CCONJ
dss-287	516	16	most	most	ADV
dss-287	516	17	widely	widely	ADV
dss-287	516	18	used	use	VERB
dss-287	516	19	reflecting	reflect	VERB
dss-287	516	20	designs	design	NOUN
dss-287	516	21	,	,	PUNCT
dss-287	516	22	particularly	particularly	ADV
dss-287	516	23	favored	favor	VERB
dss-287	516	24	by	by	ADP
dss-287	516	25	amateur	amateur	ADJ
dss-287	516	26	astronomers	astronomer	NOUN
dss-287	516	27	.	.	PUNCT
dss-287	517	1	it	it	PRON
dss-287	517	2	is	be	AUX
dss-287	517	3	also	also	ADV
dss-287	517	4	the	the	DET
dss-287	517	5	most	most	ADV
dss-287	517	6	frequently	frequently	ADV
dss-287	517	7	constructed	construct	VERB
dss-287	517	8	telescope	telescope	NOUN
dss-287	517	9	by	by	ADP
dss-287	517	10	hobbyists	hobbyist	NOUN
dss-287	517	11	,	,	PUNCT
dss-287	517	12	effectively	effectively	ADV
dss-287	517	13	making	make	VERB
dss-287	517	14	it	it	PRON
dss-287	517	15	the	the	DET
dss-287	517	16	benchmark	benchmark	NOUN
dss-287	517	17	for	for	ADP
dss-287	517	18	evaluating	evaluate	VERB
dss-287	517	19	other	other	ADJ
dss-287	517	20	telescope	telescope	NOUN
dss-287	517	21	types	type	NOUN
dss-287	517	22	.	.	PUNCT
dss-287	518	1	this	this	DET
dss-287	518	2	telescope	telescope	NOUN
dss-287	518	3	design	design	NOUN
dss-287	518	4	includes	include	VERB
dss-287	518	5	a	a	DET
dss-287	518	6	paraboloidal	paraboloidal	NOUN
dss-287	518	7	(	(	PUNCT
dss-287	518	8	commonly	commonly	ADV
dss-287	518	9	misnamed	misname	VERB
dss-287	518	10	as	as	ADP
dss-287	518	11	"	"	PUNCT
dss-287	518	12	parabolic	parabolic	ADJ
dss-287	518	13	"	"	PUNCT
dss-287	518	14	)	)	PUNCT
dss-287	518	15	primary	primary	ADJ
dss-287	518	16	mirror	mirror	NOUN
dss-287	518	17	and	and	CCONJ
dss-287	518	18	a	a	DET
dss-287	518	19	flat	flat	ADJ
dss-287	518	20	secondary	secondary	ADJ
dss-287	518	21	mirror	mirror	NOUN
dss-287	518	22	,	,	PUNCT
dss-287	518	23	which	which	PRON
dss-287	518	24	redirects	redirect	VERB
dss-287	518	25	the	the	DET
dss-287	518	26	focused	focused	ADJ
dss-287	518	27	light	light	NOUN
dss-287	518	28	out	out	ADP
dss-287	518	29	of	of	ADP
dss-287	518	30	the	the	DET
dss-287	518	31	tube	tube	NOUN
dss-287	518	32	for	for	ADP
dss-287	518	33	either	either	CCONJ
dss-287	518	34	visual	visual	ADJ
dss-287	518	35	observation	observation	NOUN
dss-287	518	36	or	or	CCONJ
dss-287	518	37	photography	photography	NOUN
dss-287	518	38	.	.	PUNCT
dss-287	519	1	newtonians	newtonian	NOUN
dss-287	519	2	typically	typically	ADV
dss-287	519	3	have	have	VERB
dss-287	519	4	focal	focal	ADJ
dss-287	519	5	ratios	ratio	NOUN
dss-287	519	6	ranging	range	VERB
dss-287	519	7	from	from	ADP
dss-287	519	8	f/4	f/4	ADJ
dss-287	519	9	to	to	ADP
dss-287	519	10	f/12	f/12	PROPN
dss-287	519	11	.	.	PUNCT
dss-287	520	1	focal	focal	ADJ
dss-287	520	2	ratios	ratio	NOUN
dss-287	520	3	below	below	ADP
dss-287	520	4	f/4	f/4	ADJ
dss-287	520	5	are	be	AUX
dss-287	520	6	impractical	impractical	ADJ
dss-287	520	7	due	due	ADJ
dss-287	520	8	to	to	ADP
dss-287	520	9	significant	significant	ADJ
dss-287	520	10	coma	coma	NOUN
dss-287	520	11	near	near	ADP
dss-287	520	12	the	the	DET
dss-287	520	13	edges	edge	NOUN
dss-287	520	14	of	of	ADP
dss-287	520	15	the	the	DET
dss-287	520	16	field	field	NOUN
dss-287	520	17	,	,	PUNCT
dss-287	520	18	while	while	SCONJ
dss-287	520	19	ratios	ratio	NOUN
dss-287	520	20	above	above	ADP
dss-287	520	21	f/12	f/12	PROPN
dss-287	520	22	result	result	VERB
dss-287	520	23	in	in	ADP
dss-287	520	24	telescopes	telescope	NOUN
dss-287	520	25	that	that	PRON
dss-287	520	26	are	be	AUX
dss-287	520	27	excessively	excessively	ADV
dss-287	520	28	long	long	ADJ
dss-287	520	29	.	.	PUNCT
dss-287	521	1	telescopes	telescope	NOUN
dss-287	521	2	with	with	ADP
dss-287	521	3	slower	slow	ADJ
dss-287	521	4	focal	focal	ADJ
dss-287	521	5	ratios	ratio	NOUN
dss-287	521	6	(	(	PUNCT
dss-287	521	7	f/7	f/7	ADJ
dss-287	521	8	to	to	ADP
dss-287	521	9	f/12	f/12	PROPN
dss-287	521	10	)	)	PUNCT
dss-287	521	11	are	be	AUX
dss-287	521	12	best	good	ADJ
dss-287	521	13	for	for	ADP
dss-287	521	14	viewing	view	VERB
dss-287	521	15	the	the	DET
dss-287	521	16	moon	moon	NOUN
dss-287	521	17	and	and	CCONJ
dss-287	521	18	planets	planet	NOUN
dss-287	521	19	,	,	PUNCT
dss-287	521	20	while	while	SCONJ
dss-287	521	21	faster	fast	ADJ
dss-287	521	22	focal	focal	ADJ
dss-287	521	23	ratios	ratio	NOUN
dss-287	521	24	(	(	PUNCT
dss-287	521	25	f/4	f/4	X
dss-287	521	26	to	to	ADP
dss-287	521	27	f/6	f/6	NOUN
dss-287	521	28	)	)	PUNCT
dss-287	521	29	are	be	AUX
dss-287	521	30	more	more	ADV
dss-287	521	31	suitable	suitable	ADJ
dss-287	521	32	for	for	ADP
dss-287	521	33	deep	deep	ADJ
dss-287	521	34	-	-	PUNCT
dss-287	521	35	sky	sky	NOUN
dss-287	521	36	observations	observation	NOUN
dss-287	521	37	and	and	CCONJ
dss-287	521	38	astrophotography	astrophotography	NOUN
dss-287	521	39	at	at	ADP
dss-287	521	40	the	the	DET
dss-287	521	41	prime	prime	ADJ
dss-287	521	42	focus	focus	NOUN
dss-287	521	43	.	.	PUNCT
dss-287	522	1	in	in	ADP
dss-287	522	2	smaller	small	ADJ
dss-287	522	3	,	,	PUNCT
dss-287	522	4	slower	slow	ADJ
dss-287	522	5	newtonian	newtonian	ADJ
dss-287	522	6	telescopes	telescope	NOUN
dss-287	522	7	,	,	PUNCT
dss-287	522	8	a	a	DET
dss-287	522	9	spherical	spherical	ADJ
dss-287	522	10	mirror	mirror	NOUN
dss-287	522	11	may	may	AUX
dss-287	522	12	be	be	AUX
dss-287	522	13	used	use	VERB
dss-287	522	14	instead	instead	ADV
dss-287	522	15	of	of	ADP
dss-287	522	16	a	a	DET
dss-287	522	17	paraboloidal	paraboloidal	ADJ
dss-287	522	18	one	one	NUM
dss-287	522	19	.	.	PUNCT
dss-287	523	1	although	although	SCONJ
dss-287	523	2	most	most	ADJ
dss-287	523	3	modern	modern	ADJ
dss-287	523	4	newtonians	newtonian	NOUN
dss-287	523	5	use	use	VERB
dss-287	523	6	paraboloidal	paraboloidal	ADJ
dss-287	523	7	mirrors	mirror	NOUN
dss-287	523	8	,	,	PUNCT
dss-287	523	9	beginners	beginner	NOUN
dss-287	523	10	often	often	ADV
dss-287	523	11	start	start	VERB
dss-287	523	12	with	with	ADP
dss-287	523	13	spherical	spherical	ADJ
dss-287	523	14	mirrors	mirror	NOUN
dss-287	523	15	due	due	ADP
dss-287	523	16	to	to	ADP
dss-287	523	17	their	their	PRON
dss-287	523	18	ease	ease	NOUN
dss-287	523	19	of	of	ADP
dss-287	523	20	manufacture	manufacture	NOUN
dss-287	523	21	and	and	CCONJ
dss-287	523	22	price	price	NOUN
dss-287	523	23	.	.	PUNCT
dss-287	524	1	the	the	DET
dss-287	524	2	diagonal	diagonal	ADJ
dss-287	524	3	mirror	mirror	NOUN
dss-287	524	4	,	,	PUNCT
dss-287	524	5	which	which	PRON
dss-287	524	6	redirects	redirect	VERB
dss-287	524	7	the	the	DET
dss-287	524	8	light	light	ADJ
dss-287	524	9	path	path	NOUN
dss-287	524	10	,	,	PUNCT
dss-287	524	11	causes	cause	VERB
dss-287	524	12	a	a	DET
dss-287	524	13	central	central	ADJ
dss-287	524	14	obstruction	obstruction	NOUN
dss-287	524	15	in	in	ADP
dss-287	524	16	the	the	DET
dss-287	524	17	primary	primary	ADJ
dss-287	524	18	mirror	mirror	NOUN
dss-287	524	19	.	.	PUNCT
dss-287	525	1	while	while	SCONJ
dss-287	525	2	it	it	PRON
dss-287	525	3	must	must	AUX
dss-287	525	4	be	be	AUX
dss-287	525	5	large	large	ADJ
dss-287	525	6	enough	enough	ADV
dss-287	525	7	to	to	PART
dss-287	525	8	cover	cover	VERB
dss-287	525	9	the	the	DET
dss-287	525	10	desired	desire	VERB
dss-287	525	11	field	field	NOUN
dss-287	525	12	of	of	ADP
dss-287	525	13	view	view	NOUN
dss-287	525	14	,	,	PUNCT
dss-287	525	15	it	it	PRON
dss-287	525	16	should	should	AUX
dss-287	525	17	be	be	AUX
dss-287	525	18	kept	keep	VERB
dss-287	525	19	as	as	ADV
dss-287	525	20	small	small	ADJ
dss-287	525	21	as	as	ADP
dss-287	525	22	possible	possible	ADJ
dss-287	525	23	to	to	PART
dss-287	525	24	minimize	minimize	VERB
dss-287	525	25	negative	negative	ADJ
dss-287	525	26	effects	effect	NOUN
dss-287	525	27	on	on	ADP
dss-287	525	28	image	image	NOUN
dss-287	525	29	quality	quality	NOUN
dss-287	525	30	.	.	PUNCT
dss-287	526	1	for	for	ADP
dss-287	526	2	visual	visual	ADJ
dss-287	526	3	observation	observation	NOUN
dss-287	526	4	,	,	PUNCT
dss-287	526	5	a	a	DET
dss-287	526	6	fully	fully	ADV
dss-287	526	7	illuminated	illuminated	ADJ
dss-287	526	8	field	field	NOUN
dss-287	526	9	of	of	ADP
dss-287	526	10	about	about	ADV
dss-287	526	11	10	10	NUM
dss-287	526	12	mm	mm	NOUN
dss-287	526	13	in	in	ADP
dss-287	526	14	diameter	diameter	NOUN
dss-287	526	15	is	be	AUX
dss-287	526	16	sufficient	sufficient	ADJ
dss-287	526	17	.	.	PUNCT
dss-287	527	1	however	however	ADV
dss-287	527	2	,	,	PUNCT
dss-287	527	3	newtonians	newtonian	NOUN
dss-287	527	4	intended	intend	VERB
dss-287	527	5	for	for	ADP
dss-287	527	6	photographic	photographic	ADJ
dss-287	527	7	use	use	NOUN
dss-287	527	8	require	require	VERB
dss-287	527	9	a	a	DET
dss-287	527	10	larger	large	ADJ
dss-287	527	11	diagonal	diagonal	NOUN
dss-287	527	12	to	to	PART
dss-287	527	13	fully	fully	ADV
dss-287	527	14	light	light	VERB
dss-287	527	15	the	the	DET
dss-287	527	16	image	image	NOUN
dss-287	527	17	area	area	NOUN
dss-287	527	18	.	.	PUNCT
dss-287	528	1	ideally	ideally	ADV
dss-287	528	2	,	,	PUNCT
dss-287	528	3	a	a	DET
dss-287	528	4	telescope	telescope	NOUN
dss-287	528	5	designer	designer	NOUN
dss-287	528	6	aims	aim	VERB
dss-287	528	7	to	to	PART
dss-287	528	8	use	use	VERB
dss-287	528	9	the	the	DET
dss-287	528	10	smallest	small	ADJ
dss-287	528	11	possible	possible	ADJ
dss-287	528	12	secondary	secondary	ADJ
dss-287	528	13	mirror	mirror	NOUN
dss-287	528	14	,	,	PUNCT
dss-287	528	15	not	not	PART
dss-287	528	16	only	only	ADV
dss-287	528	17	to	to	PART
dss-287	528	18	minimize	minimize	VERB
dss-287	528	19	light	light	ADJ
dss-287	528	20	loss	loss	NOUN
dss-287	528	21	but	but	CCONJ
dss-287	528	22	also	also	ADV
dss-287	528	23	to	to	PART
dss-287	528	24	reduce	reduce	VERB
dss-287	528	25	image	image	NOUN
dss-287	528	26	contrast	contrast	NOUN
dss-287	528	27	degradation	degradation	NOUN
dss-287	528	28	caused	cause	VERB
dss-287	528	29	by	by	ADP
dss-287	528	30	diffraction	diffraction	NOUN
dss-287	528	31	.	.	PUNCT
dss-287	529	1	discerning	discern	VERB
dss-287	529	2	observers	observer	NOUN
dss-287	529	3	dss	dss	NOUN
dss-287	529	4	vol	vol	NOUN
dss-287	529	5	.	.	PROPN
dss-287	530	1	6	6	NUM
dss-287	530	2	,	,	PUNCT
dss-287	530	3	no	no	INTJ
dss-287	530	4	.	.	NOUN
dss-287	530	5	1	1	NUM
dss-287	530	6	,	,	PUNCT
dss-287	530	7	2025	2025	NUM
dss-287	530	8	,	,	PUNCT
dss-287	530	9	pp.49	pp.49	NOUN
dss-287	530	10	-	-	SYM
dss-287	530	11	90	90	NUM
dss-287	530	12	68	68	NUM
dss-287	530	13	can	can	AUX
dss-287	530	14	notice	notice	VERB
dss-287	530	15	a	a	DET
dss-287	530	16	decline	decline	NOUN
dss-287	530	17	in	in	ADP
dss-287	530	18	image	image	NOUN
dss-287	530	19	quality	quality	NOUN
dss-287	530	20	when	when	SCONJ
dss-287	530	21	the	the	DET
dss-287	530	22	central	central	ADJ
dss-287	530	23	obstruction	obstruction	NOUN
dss-287	530	24	is	be	AUX
dss-287	530	25	20	20	NUM
dss-287	530	26	%	%	NOUN
dss-287	530	27	of	of	ADP
dss-287	530	28	the	the	DET
dss-287	530	29	aperture	aperture	NOUN
dss-287	530	30	,	,	PUNCT
dss-287	530	31	and	and	CCONJ
dss-287	530	32	it	it	PRON
dss-287	530	33	is	be	AUX
dss-287	530	34	generally	generally	ADV
dss-287	530	35	agreed	agree	VERB
dss-287	530	36	that	that	SCONJ
dss-287	530	37	it	it	PRON
dss-287	530	38	should	should	AUX
dss-287	530	39	not	not	PART
dss-287	530	40	exceed	exceed	VERB
dss-287	530	41	30	30	NUM
dss-287	530	42	%	%	NOUN
dss-287	530	43	.	.	PUNCT
dss-287	531	1	a	a	DET
dss-287	531	2	secondary	secondary	ADJ
dss-287	531	3	mirror	mirror	NOUN
dss-287	531	4	that	that	PRON
dss-287	531	5	is	be	AUX
dss-287	531	6	too	too	ADV
dss-287	531	7	small	small	ADJ
dss-287	531	8	is	be	AUX
dss-287	531	9	not	not	PART
dss-287	531	10	practical	practical	ADJ
dss-287	531	11	.	.	PUNCT
dss-287	532	1	in	in	ADP
dss-287	532	2	addition	addition	NOUN
dss-287	532	3	to	to	ADP
dss-287	532	4	the	the	DET
dss-287	532	5	risk	risk	NOUN
dss-287	532	6	of	of	ADP
dss-287	532	7	surface	surface	NOUN
dss-287	532	8	imperfections	imperfection	NOUN
dss-287	532	9	near	near	ADP
dss-287	532	10	the	the	DET
dss-287	532	11	edge	edge	NOUN
dss-287	532	12	of	of	ADP
dss-287	532	13	the	the	DET
dss-287	532	14	diagonal	diagonal	ADJ
dss-287	532	15	mirror	mirror	NOUN
dss-287	532	16	,	,	PUNCT
dss-287	532	17	such	such	DET
dss-287	532	18	a	a	DET
dss-287	532	19	small	small	ADJ
dss-287	532	20	mirror	mirror	NOUN
dss-287	532	21	may	may	AUX
dss-287	532	22	fail	fail	VERB
dss-287	532	23	to	to	PART
dss-287	532	24	fully	fully	ADV
dss-287	532	25	capture	capture	VERB
dss-287	532	26	and	and	CCONJ
dss-287	532	27	reflect	reflect	VERB
dss-287	532	28	the	the	DET
dss-287	532	29	entire	entire	ADJ
dss-287	532	30	light	light	ADJ
dss-287	532	31	cone	cone	NOUN
dss-287	532	32	.	.	PUNCT
dss-287	533	1	in	in	ADP
dss-287	533	2	fast	fast	ADJ
dss-287	533	3	newtonian	newtonian	ADJ
dss-287	533	4	telescopes	telescope	NOUN
dss-287	533	5	,	,	PUNCT
dss-287	533	6	the	the	DET
dss-287	533	7	secondary	secondary	ADJ
dss-287	533	8	mirror	mirror	NOUN
dss-287	533	9	needs	need	VERB
dss-287	533	10	to	to	PART
dss-287	533	11	be	be	AUX
dss-287	533	12	positioned	position	VERB
dss-287	533	13	slightly	slightly	ADV
dss-287	533	14	closer	close	ADJ
dss-287	533	15	to	to	ADP
dss-287	533	16	the	the	DET
dss-287	533	17	primary	primary	ADJ
dss-287	533	18	mirror	mirror	NOUN
dss-287	533	19	and	and	CCONJ
dss-287	533	20	farther	far	ADV
dss-287	533	21	from	from	ADP
dss-287	533	22	the	the	DET
dss-287	533	23	focal	focal	ADJ
dss-287	533	24	point	point	NOUN
dss-287	533	25	to	to	PART
dss-287	533	26	ensure	ensure	VERB
dss-287	533	27	that	that	SCONJ
dss-287	533	28	the	the	DET
dss-287	533	29	focal	focal	ADJ
dss-287	533	30	plane	plane	NOUN
dss-287	533	31	is	be	AUX
dss-287	533	32	evenly	evenly	ADV
dss-287	533	33	illuminated	illuminate	VERB
dss-287	533	34	around	around	ADP
dss-287	533	35	the	the	DET
dss-287	533	36	optical	optical	ADJ
dss-287	533	37	axis	axis	NOUN
dss-287	533	38	.	.	PUNCT
dss-287	534	1	as	as	ADP
dss-287	534	2	a	a	DET
dss-287	534	3	general	general	ADJ
dss-287	534	4	guideline	guideline	NOUN
dss-287	534	5	,	,	PUNCT
dss-287	534	6	illumination	illumination	NOUN
dss-287	534	7	at	at	ADP
dss-287	534	8	the	the	DET
dss-287	534	9	corners	corner	NOUN
dss-287	534	10	of	of	ADP
dss-287	534	11	a	a	DET
dss-287	534	12	photograph	photograph	NOUN
dss-287	534	13	should	should	AUX
dss-287	534	14	not	not	PART
dss-287	534	15	decrease	decrease	VERB
dss-287	534	16	by	by	ADP
dss-287	534	17	more	more	ADJ
dss-287	534	18	than	than	ADP
dss-287	534	19	30	30	NUM
dss-287	534	20	to	to	PART
dss-287	534	21	40	40	NUM
dss-287	534	22	%	%	NOUN
dss-287	534	23	.	.	PUNCT
dss-287	535	1	for	for	ADP
dss-287	535	2	visual	visual	ADJ
dss-287	535	3	observing	observing	NOUN
dss-287	535	4	,	,	PUNCT
dss-287	535	5	a	a	DET
dss-287	535	6	fully	fully	ADV
dss-287	535	7	illuminated	illuminated	ADJ
dss-287	535	8	field	field	NOUN
dss-287	535	9	with	with	ADP
dss-287	535	10	a	a	DET
dss-287	535	11	10	10	NUM
dss-287	535	12	mm	mm	NOUN
dss-287	535	13	diameter	diameter	NOUN
dss-287	535	14	is	be	AUX
dss-287	535	15	typically	typically	ADV
dss-287	535	16	adequate	adequate	ADJ
dss-287	535	17	[	[	X
dss-287	535	18	3	3	NUM
dss-287	535	19	]	]	PUNCT
dss-287	535	20	.	.	PUNCT
dss-287	536	1	5.6.1	5.6.1	NUM
dss-287	536	2	newtonian	newtonian	ADJ
dss-287	536	3	telescope	telescope	NOUN
dss-287	536	4	with	with	ADP
dss-287	536	5	spherical	spherical	ADJ
dss-287	536	6	mirror	mirror	NOUN
dss-287	536	7	in	in	ADP
dss-287	536	8	a	a	DET
dss-287	536	9	spherical	spherical	ADJ
dss-287	536	10	(	(	PUNCT
dss-287	536	11	concave	concave	PROPN
dss-287	536	12	)	)	PUNCT
dss-287	536	13	mirror	mirror	NOUN
dss-287	536	14	,	,	PUNCT
dss-287	536	15	light	light	ADJ
dss-287	536	16	rays	ray	NOUN
dss-287	536	17	that	that	PRON
dss-287	536	18	travel	travel	VERB
dss-287	536	19	near	near	ADP
dss-287	536	20	the	the	DET
dss-287	536	21	optical	optical	ADJ
dss-287	536	22	axis	axis	NOUN
dss-287	536	23	(	(	PUNCT
dss-287	536	24	paraxial	paraxial	ADJ
dss-287	536	25	rays	ray	NOUN
dss-287	536	26	)	)	PUNCT
dss-287	536	27	converge	converge	VERB
dss-287	536	28	at	at	ADP
dss-287	536	29	a	a	DET
dss-287	536	30	specific	specific	ADJ
dss-287	536	31	point	point	NOUN
dss-287	536	32	-	-	PUNCT
dss-287	536	33	paraxial	paraxial	ADJ
dss-287	536	34	focus	focus	NOUN
dss-287	536	35	(	(	PUNCT
dss-287	536	36	designated	designate	VERB
dss-287	536	37	as	as	ADP
dss-287	536	38	f	f	PROPN
dss-287	536	39	in	in	ADP
dss-287	536	40	fig	fig	NOUN
dss-287	536	41	.	.	PUNCT
dss-287	537	1	7	7	NUM
dss-287	537	2	)	)	PUNCT
dss-287	537	3	.	.	PUNCT
dss-287	538	1	however	however	ADV
dss-287	538	2	,	,	PUNCT
dss-287	538	3	rays	ray	VERB
dss-287	538	4	farther	far	ADV
dss-287	538	5	from	from	ADP
dss-287	538	6	the	the	DET
dss-287	538	7	axis	axis	NOUN
dss-287	538	8	come	come	VERB
dss-287	538	9	to	to	PART
dss-287	538	10	focus	focus	VERB
dss-287	538	11	nearer	near	ADV
dss-287	538	12	to	to	ADP
dss-287	538	13	the	the	DET
dss-287	538	14	mirror	mirror	NOUN
dss-287	538	15	,	,	PUNCT
dss-287	538	16	resulting	result	VERB
dss-287	538	17	in	in	ADP
dss-287	538	18	spherical	spherical	ADJ
dss-287	538	19	aberration	aberration	NOUN
dss-287	538	20	.	.	PUNCT
dss-287	539	1	figure	figure	NOUN
dss-287	539	2	7	7	NUM
dss-287	539	3	illustrates	illustrate	VERB
dss-287	539	4	a	a	DET
dss-287	539	5	series	series	NOUN
dss-287	539	6	of	of	ADP
dss-287	539	7	axial	axial	ADJ
dss-287	539	8	spot	spot	NOUN
dss-287	539	9	diagrams	diagram	NOUN
dss-287	539	10	taken	take	VERB
dss-287	539	11	at	at	ADP
dss-287	539	12	different	different	ADJ
dss-287	539	13	focal	focal	ADJ
dss-287	539	14	planes	plane	NOUN
dss-287	539	15	for	for	ADP
dss-287	539	16	a	a	DET
dss-287	539	17	200	200	NUM
dss-287	539	18	mm	mm	NOUN
dss-287	539	19	spherical	spherical	ADJ
dss-287	539	20	mirror	mirror	NOUN
dss-287	539	21	with	with	ADP
dss-287	539	22	an	an	DET
dss-287	539	23	f/8	f/8	NOUN
dss-287	539	24	focal	focal	ADJ
dss-287	539	25	ratio	ratio	NOUN
dss-287	539	26	.	.	PUNCT
dss-287	540	1	the	the	DET
dss-287	540	2	sequence	sequence	NOUN
dss-287	540	3	begins	begin	VERB
dss-287	540	4	at	at	ADP
dss-287	540	5	the	the	DET
dss-287	540	6	paraxial	paraxial	ADJ
dss-287	540	7	focus	focus	NOUN
dss-287	540	8	(	(	PUNCT
dss-287	540	9	0.0	0.0	NUM
dss-287	540	10	mm	mm	NOUN
dss-287	540	11	)	)	PUNCT
dss-287	540	12	,	,	PUNCT
dss-287	540	13	and	and	CCONJ
dss-287	540	14	the	the	DET
dss-287	540	15	light	light	ADJ
dss-287	540	16	blur	blur	NOUN
dss-287	540	17	is	be	AUX
dss-287	540	18	smallest	small	ADJ
dss-287	540	19	at	at	ADP
dss-287	540	20	a	a	DET
dss-287	540	21	point	point	NOUN
dss-287	540	22	0.6	0.6	NUM
dss-287	540	23	mm	mm	NOUN
dss-287	540	24	inside	inside	ADP
dss-287	540	25	this	this	DET
dss-287	540	26	focus	focus	NOUN
dss-287	540	27	.	.	PUNCT
dss-287	541	1	the	the	DET
dss-287	541	2	way	way	NOUN
dss-287	541	3	the	the	DET
dss-287	541	4	blur	blur	NOUN
dss-287	541	5	size	size	NOUN
dss-287	541	6	and	and	CCONJ
dss-287	541	7	the	the	DET
dss-287	541	8	concentration	concentration	NOUN
dss-287	541	9	of	of	ADP
dss-287	541	10	light	light	NOUN
dss-287	541	11	in	in	ADP
dss-287	541	12	the	the	DET
dss-287	541	13	image	image	NOUN
dss-287	541	14	center	center	NOUN
dss-287	541	15	change	change	NOUN
dss-287	541	16	(	(	PUNCT
dss-287	541	17	shown	show	VERB
dss-287	541	18	in	in	ADP
dss-287	541	19	fig	fig	NOUN
dss-287	541	20	.	.	PUNCT
dss-287	542	1	7	7	X
dss-287	542	2	)	)	PUNCT
dss-287	542	3	is	be	AUX
dss-287	542	4	a	a	DET
dss-287	542	5	typical	typical	ADJ
dss-287	542	6	signature	signature	NOUN
dss-287	542	7	of	of	ADP
dss-287	542	8	spherical	spherical	ADJ
dss-287	542	9	aberration	aberration	NOUN
dss-287	542	10	.	.	PUNCT
dss-287	543	1	in	in	ADP
dss-287	543	2	slower	slow	ADJ
dss-287	543	3	newtonian	newtonian	ADJ
dss-287	543	4	telescopes	telescope	NOUN
dss-287	543	5	,	,	PUNCT
dss-287	543	6	parabolizing	parabolize	VERB
dss-287	543	7	the	the	DET
dss-287	543	8	mirror	mirror	NOUN
dss-287	543	9	is	be	AUX
dss-287	543	10	n’t	not	PART
dss-287	543	11	always	always	ADV
dss-287	543	12	necessary	necessary	ADJ
dss-287	543	13	if	if	SCONJ
dss-287	543	14	the	the	DET
dss-287	543	15	spherical	spherical	ADJ
dss-287	543	16	aberration	aberration	NOUN
dss-287	543	17	blur	blur	NOUN
dss-287	543	18	remains	remain	VERB
dss-287	543	19	smaller	small	ADJ
dss-287	543	20	than	than	ADP
dss-287	543	21	the	the	DET
dss-287	543	22	airy	airy	ADJ
dss-287	543	23	disk	disk	NOUN
dss-287	543	24	[	[	X
dss-287	543	25	3	3	NUM
dss-287	543	26	]	]	PUNCT
dss-287	543	27	.	.	PUNCT
dss-287	544	1	fig	fig	NOUN
dss-287	544	2	.	.	PUNCT
dss-287	545	1	7	7	NUM
dss-287	545	2	spot	spot	NOUN
dss-287	545	3	diagrams	diagram	NOUN
dss-287	545	4	(	(	PUNCT
dss-287	545	5	at	at	ADP
dss-287	545	6	different	different	ADJ
dss-287	545	7	focal	focal	ADJ
dss-287	545	8	planes	plane	NOUN
dss-287	545	9	)	)	PUNCT
dss-287	545	10	for	for	ADP
dss-287	545	11	a	a	DET
dss-287	545	12	200	200	NUM
dss-287	545	13	mm	mm	NOUN
dss-287	545	14	f/8	f/8	NOUN
dss-287	545	15	spherical	spherical	ADJ
dss-287	545	16	mirror	mirror	NOUN
dss-287	545	17	[	[	X
dss-287	545	18	3	3	X
dss-287	545	19	]	]	PUNCT
dss-287	545	20	in	in	ADP
dss-287	545	21	fig	fig	NOUN
dss-287	545	22	.	.	PUNCT
dss-287	545	23	8	8	NUM
dss-287	545	24	,	,	PUNCT
dss-287	545	25	the	the	DET
dss-287	545	26	spot	spot	NOUN
dss-287	545	27	diagram	diagram	NOUN
dss-287	545	28	sizes	size	NOUN
dss-287	545	29	for	for	ADP
dss-287	545	30	various	various	ADJ
dss-287	545	31	focal	focal	ADJ
dss-287	545	32	ratios	ratio	NOUN
dss-287	545	33	with	with	ADP
dss-287	545	34	both	both	CCONJ
dss-287	545	35	the	the	DET
dss-287	545	36	size	size	NOUN
dss-287	545	37	of	of	ADP
dss-287	545	38	the	the	DET
dss-287	545	39	corresponding	correspond	VERB
dss-287	545	40	airy	airy	ADJ
dss-287	545	41	disks	disk	NOUN
dss-287	545	42	and	and	CCONJ
dss-287	545	43	the	the	DET
dss-287	545	44	0.025	0.025	NUM
dss-287	545	45	mm	mm	NOUN
dss-287	545	46	photographic	photographic	ADJ
dss-287	545	47	resolution	resolution	NOUN
dss-287	545	48	limit	limit	NOUN
dss-287	545	49	are	be	AUX
dss-287	545	50	compared	compare	VERB
dss-287	545	51	.	.	PUNCT
dss-287	546	1	for	for	ADP
dss-287	546	2	a	a	DET
dss-287	546	3	200	200	NUM
dss-287	546	4	mm	mm	NUM
dss-287	546	5	newtonian	newtonian	ADJ
dss-287	546	6	telescope	telescope	NOUN
dss-287	546	7	,	,	PUNCT
dss-287	546	8	a	a	DET
dss-287	546	9	spherical	spherical	ADJ
dss-287	546	10	mirror	mirror	NOUN
dss-287	546	11	performs	perform	VERB
dss-287	546	12	adequately	adequately	ADV
dss-287	546	13	for	for	ADP
dss-287	546	14	visual	visual	ADJ
dss-287	546	15	use	use	NOUN
dss-287	546	16	at	at	ADP
dss-287	546	17	f/12	f/12	PROPN
dss-287	546	18	or	or	CCONJ
dss-287	546	19	slower	slow	ADJ
dss-287	546	20	(	(	PUNCT
dss-287	546	21	fig	fig	NOUN
dss-287	546	22	.	.	PUNCT
dss-287	547	1	8)	8)	NUM
dss-287	547	2	.	.	PUNCT
dss-287	548	1	for	for	ADP
dss-287	548	2	photographic	photographic	ADJ
dss-287	548	3	purposes	purpose	NOUN
dss-287	548	4	,	,	PUNCT
dss-287	548	5	mirrors	mirror	NOUN
dss-287	548	6	used	use	VERB
dss-287	548	7	at	at	ADP
dss-287	548	8	f/8	f/8	NOUN
dss-287	548	9	or	or	CCONJ
dss-287	548	10	slower	slow	ADJ
dss-287	548	11	also	also	ADV
dss-287	548	12	do	do	AUX
dss-287	548	13	not	not	PART
dss-287	548	14	require	require	VERB
dss-287	548	15	parabolizing	parabolize	VERB
dss-287	548	16	.	.	PUNCT
dss-287	549	1	fig	fig	NOUN
dss-287	549	2	.	.	PUNCT
dss-287	550	1	8	8	NUM
dss-287	550	2	smallest	small	ADJ
dss-287	550	3	blur	blur	NOUN
dss-287	550	4	spot	spot	NOUN
dss-287	550	5	diagrams	diagram	NOUN
dss-287	550	6	for	for	ADP
dss-287	550	7	200	200	NUM
dss-287	550	8	mm	mm	PROPN
dss-287	550	9	spherical	spherical	ADJ
dss-287	550	10	mirrors	mirror	NOUN
dss-287	550	11	[	[	X
dss-287	550	12	3	3	NUM
dss-287	550	13	]	]	ADJ
dss-287	550	14	dss	dss	NOUN
dss-287	550	15	vol	vol	NOUN
dss-287	550	16	.	.	PROPN
dss-287	551	1	6	6	NUM
dss-287	551	2	,	,	PUNCT
dss-287	551	3	no	no	INTJ
dss-287	551	4	.	.	NOUN
dss-287	551	5	1	1	NUM
dss-287	551	6	,	,	PUNCT
dss-287	551	7	2025	2025	NUM
dss-287	551	8	,	,	PUNCT
dss-287	551	9	pp.49	pp.49	NOUN
dss-287	551	10	-	-	SYM
dss-287	551	11	90	90	NUM
dss-287	551	12	69	69	NUM
dss-287	552	1	5.6.2	5.6.2	NUM
dss-287	552	2	newtonian	newtonian	ADJ
dss-287	552	3	telescope	telescope	NOUN
dss-287	552	4	with	with	ADP
dss-287	552	5	paraboloidal	paraboloidal	ADJ
dss-287	552	6	mirror	mirror	NOUN
dss-287	552	7	near	near	ADP
dss-287	552	8	the	the	DET
dss-287	552	9	optical	optical	ADJ
dss-287	552	10	axis	axis	NOUN
dss-287	552	11	,	,	PUNCT
dss-287	552	12	spherical	spherical	ADJ
dss-287	552	13	and	and	CCONJ
dss-287	552	14	paraboloidal	paraboloidal	ADJ
dss-287	552	15	mirrors	mirror	NOUN
dss-287	552	16	share	share	VERB
dss-287	552	17	an	an	DET
dss-287	552	18	identical	identical	ADJ
dss-287	552	19	radius	radius	NOUN
dss-287	552	20	of	of	ADP
dss-287	552	21	curvature	curvature	NOUN
dss-287	552	22	.	.	PUNCT
dss-287	553	1	however	however	ADV
dss-287	553	2	,	,	PUNCT
dss-287	553	3	as	as	SCONJ
dss-287	553	4	you	you	PRON
dss-287	553	5	move	move	VERB
dss-287	553	6	farther	far	ADV
dss-287	553	7	from	from	ADP
dss-287	553	8	the	the	DET
dss-287	553	9	axis	axis	NOUN
dss-287	553	10	,	,	PUNCT
dss-287	553	11	the	the	DET
dss-287	553	12	spherical	spherical	ADJ
dss-287	553	13	surface	surface	NOUN
dss-287	553	14	must	must	AUX
dss-287	553	15	be	be	AUX
dss-287	553	16	shaped	shape	VERB
dss-287	553	17	slightly	slightly	ADV
dss-287	553	18	backward	backward	ADJ
dss-287	553	19	to	to	PART
dss-287	553	20	ensure	ensure	VERB
dss-287	553	21	all	all	DET
dss-287	553	22	rays	ray	NOUN
dss-287	553	23	converge	converge	VERB
dss-287	553	24	at	at	ADP
dss-287	553	25	the	the	DET
dss-287	553	26	same	same	ADJ
dss-287	553	27	focal	focal	ADJ
dss-287	553	28	point	point	NOUN
dss-287	553	29	(	(	PUNCT
dss-287	553	30	f	f	X
dss-287	553	31	)	)	PUNCT
dss-287	553	32	,	,	PUNCT
dss-287	553	33	thereby	thereby	ADV
dss-287	553	34	correcting	correct	VERB
dss-287	553	35	spherical	spherical	ADJ
dss-287	553	36	aberration	aberration	NOUN
dss-287	553	37	.	.	PUNCT
dss-287	554	1	this	this	DET
dss-287	554	2	modified	modify	VERB
dss-287	554	3	shape	shape	NOUN
dss-287	554	4	is	be	AUX
dss-287	554	5	a	a	DET
dss-287	554	6	paraboloid	paraboloid	NOUN
dss-287	554	7	.	.	PUNCT
dss-287	555	1	for	for	ADP
dss-287	555	2	mirrors	mirror	NOUN
dss-287	555	3	with	with	ADP
dss-287	555	4	focal	focal	ADJ
dss-287	555	5	ratios	ratio	NOUN
dss-287	555	6	of	of	ADP
dss-287	555	7	f/8	f/8	NOUN
dss-287	555	8	or	or	CCONJ
dss-287	555	9	slower	slow	ADJ
dss-287	555	10	,	,	PUNCT
dss-287	555	11	the	the	DET
dss-287	555	12	difference	difference	NOUN
dss-287	555	13	between	between	ADP
dss-287	555	14	the	the	DET
dss-287	555	15	edges	edge	NOUN
dss-287	555	16	of	of	ADP
dss-287	555	17	a	a	DET
dss-287	555	18	spherical	spherical	ADJ
dss-287	555	19	and	and	CCONJ
dss-287	555	20	a	a	DET
dss-287	555	21	paraboloidal	paraboloidal	ADJ
dss-287	555	22	mirror	mirror	NOUN
dss-287	555	23	is	be	AUX
dss-287	555	24	less	less	ADJ
dss-287	555	25	than	than	ADP
dss-287	555	26	the	the	DET
dss-287	555	27	wavelength	wavelength	NOUN
dss-287	555	28	of	of	ADP
dss-287	555	29	green	green	ADJ
dss-287	555	30	light	light	NOUN
dss-287	555	31	.	.	PUNCT
dss-287	556	1	the	the	DET
dss-287	556	2	primary	primary	ADJ
dss-287	556	3	optical	optical	ADJ
dss-287	556	4	defect	defect	NOUN
dss-287	556	5	in	in	ADP
dss-287	556	6	a	a	DET
dss-287	556	7	newtonian	newtonian	ADJ
dss-287	556	8	telescope	telescope	NOUN
dss-287	556	9	is	be	AUX
dss-287	556	10	coma	coma	NOUN
dss-287	556	11	.	.	PUNCT
dss-287	557	1	astigmatism	astigmatism	NOUN
dss-287	557	2	also	also	ADV
dss-287	557	3	occurs	occur	VERB
dss-287	557	4	,	,	PUNCT
dss-287	557	5	but	but	CCONJ
dss-287	557	6	typically	typically	ADV
dss-287	557	7	only	only	ADV
dss-287	557	8	at	at	ADP
dss-287	557	9	wider	wide	ADJ
dss-287	557	10	image	image	NOUN
dss-287	557	11	angles	angle	NOUN
dss-287	557	12	,	,	PUNCT
dss-287	557	13	and	and	CCONJ
dss-287	557	14	field	field	NOUN
dss-287	557	15	curvature	curvature	NOUN
dss-287	557	16	is	be	AUX
dss-287	557	17	another	another	DET
dss-287	557	18	present	present	ADJ
dss-287	557	19	but	but	CCONJ
dss-287	557	20	less	less	ADV
dss-287	557	21	significant	significant	ADJ
dss-287	557	22	aberration	aberration	NOUN
dss-287	557	23	.	.	PUNCT
dss-287	558	1	when	when	SCONJ
dss-287	558	2	the	the	DET
dss-287	558	3	entrance	entrance	NOUN
dss-287	558	4	pupil	pupil	NOUN
dss-287	558	5	is	be	AUX
dss-287	558	6	located	locate	VERB
dss-287	558	7	at	at	ADP
dss-287	558	8	the	the	DET
dss-287	558	9	mirror	mirror	NOUN
dss-287	558	10	,	,	PUNCT
dss-287	558	11	which	which	PRON
dss-287	558	12	is	be	AUX
dss-287	558	13	usually	usually	ADV
dss-287	558	14	the	the	DET
dss-287	558	15	case	case	NOUN
dss-287	558	16	,	,	PUNCT
dss-287	558	17	the	the	DET
dss-287	558	18	optimal	optimal	ADJ
dss-287	558	19	focal	focal	ADJ
dss-287	558	20	surface	surface	NOUN
dss-287	558	21	is	be	AUX
dss-287	558	22	positioned	position	VERB
dss-287	558	23	between	between	ADP
dss-287	558	24	the	the	DET
dss-287	558	25	tangential	tangential	ADJ
dss-287	558	26	and	and	CCONJ
dss-287	558	27	sagittal	sagittal	ADJ
dss-287	558	28	focal	focal	ADJ
dss-287	558	29	planes	plane	NOUN
dss-287	558	30	and	and	CCONJ
dss-287	558	31	curves	curve	NOUN
dss-287	558	32	inward	inward	ADV
dss-287	558	33	with	with	ADP
dss-287	558	34	a	a	DET
dss-287	558	35	radius	radius	NOUN
dss-287	558	36	equal	equal	ADJ
dss-287	558	37	to	to	ADP
dss-287	558	38	the	the	DET
dss-287	558	39	telescope	telescope	NOUN
dss-287	558	40	’s	’s	PART
dss-287	558	41	focal	focal	ADJ
dss-287	558	42	length	length	NOUN
dss-287	558	43	.	.	PUNCT
dss-287	559	1	since	since	SCONJ
dss-287	559	2	coma	coma	NOUN
dss-287	559	3	greatly	greatly	ADV
dss-287	559	4	outweighs	outweigh	VERB
dss-287	559	5	the	the	DET
dss-287	559	6	other	other	ADJ
dss-287	559	7	aberrations	aberration	NOUN
dss-287	559	8	in	in	ADP
dss-287	559	9	newtonian	newtonian	ADJ
dss-287	559	10	designs	design	NOUN
dss-287	559	11	,	,	PUNCT
dss-287	559	12	using	use	VERB
dss-287	559	13	a	a	DET
dss-287	559	14	curved	curved	ADJ
dss-287	559	15	photographic	photographic	ADJ
dss-287	559	16	film	film	NOUN
dss-287	559	17	or	or	CCONJ
dss-287	559	18	a	a	DET
dss-287	559	19	field	field	NOUN
dss-287	559	20	flattener	flattener	NOUN
dss-287	559	21	offers	offer	VERB
dss-287	559	22	minimal	minimal	ADJ
dss-287	559	23	improvement	improvement	NOUN
dss-287	559	24	.	.	PUNCT
dss-287	560	1	figure	figure	NOUN
dss-287	560	2	9	9	NUM
dss-287	560	3	presents	present	NOUN
dss-287	560	4	spot	spot	NOUN
dss-287	560	5	diagrams	diagram	NOUN
dss-287	560	6	for	for	ADP
dss-287	560	7	focal	focal	ADJ
dss-287	560	8	ratios	ratio	NOUN
dss-287	560	9	ranging	range	VERB
dss-287	560	10	from	from	ADP
dss-287	560	11	f/4	f/4	ADJ
dss-287	560	12	to	to	ADP
dss-287	560	13	f/12	f/12	PROPN
dss-287	560	14	,	,	PUNCT
dss-287	560	15	measured	measure	VERB
dss-287	560	16	at	at	ADP
dss-287	560	17	off	off	ADP
dss-287	560	18	-	-	PUNCT
dss-287	560	19	axis	axis	NOUN
dss-287	560	20	distances	distance	NOUN
dss-287	560	21	of	of	ADP
dss-287	560	22	0	0	NUM
dss-287	560	23	,	,	PUNCT
dss-287	560	24	10	10	NUM
dss-287	560	25	,	,	PUNCT
dss-287	560	26	20	20	NUM
dss-287	560	27	,	,	PUNCT
dss-287	560	28	and	and	CCONJ
dss-287	560	29	30	30	NUM
dss-287	560	30	mm	mm	NOUN
dss-287	560	31	on	on	ADP
dss-287	560	32	an	an	DET
dss-287	560	33	optimally	optimally	ADV
dss-287	560	34	curved	curved	ADJ
dss-287	560	35	focal	focal	ADJ
dss-287	560	36	surface	surface	NOUN
dss-287	560	37	.	.	PUNCT
dss-287	561	1	at	at	ADP
dss-287	561	2	larger	large	ADJ
dss-287	561	3	off	off	ADP
dss-287	561	4	-	-	PUNCT
dss-287	561	5	axis	axis	NOUN
dss-287	561	6	distances	distance	NOUN
dss-287	561	7	,	,	PUNCT
dss-287	561	8	particularly	particularly	ADV
dss-287	561	9	with	with	ADP
dss-287	561	10	fast	fast	ADJ
dss-287	561	11	primary	primary	ADJ
dss-287	561	12	mirrors	mirror	NOUN
dss-287	561	13	,	,	PUNCT
dss-287	561	14	significant	significant	ADJ
dss-287	561	15	coma	coma	NOUN
dss-287	561	16	and	and	CCONJ
dss-287	561	17	astigmatism	astigmatism	NOUN
dss-287	561	18	become	become	VERB
dss-287	561	19	apparent	apparent	ADJ
dss-287	561	20	.	.	PUNCT
dss-287	562	1	coma	coma	NOUN
dss-287	562	2	is	be	AUX
dss-287	562	3	the	the	DET
dss-287	562	4	dominant	dominant	ADJ
dss-287	562	5	aberration	aberration	NOUN
dss-287	562	6	near	near	ADP
dss-287	562	7	the	the	DET
dss-287	562	8	optical	optical	ADJ
dss-287	562	9	axis	axis	NOUN
dss-287	562	10	,	,	PUNCT
dss-287	562	11	while	while	SCONJ
dss-287	562	12	astigmatism	astigmatism	NOUN
dss-287	562	13	appears	appear	VERB
dss-287	562	14	farther	far	ADV
dss-287	562	15	out	out	ADV
dss-287	562	16	,	,	PUNCT
dss-287	562	17	identifiable	identifiable	ADJ
dss-287	562	18	by	by	ADP
dss-287	562	19	a	a	DET
dss-287	562	20	secondary	secondary	ADJ
dss-287	562	21	tail	tail	NOUN
dss-287	562	22	forming	form	VERB
dss-287	562	23	in	in	ADP
dss-287	562	24	the	the	DET
dss-287	562	25	comatic	comatic	ADJ
dss-287	562	26	blur	blur	NOUN
dss-287	562	27	pattern	pattern	NOUN
dss-287	562	28	[	[	X
dss-287	562	29	3	3	NUM
dss-287	562	30	]	]	PUNCT
dss-287	562	31	.	.	PUNCT
dss-287	563	1	fig	fig	NOUN
dss-287	563	2	.	.	PUNCT
dss-287	564	1	9	9	NUM
dss-287	564	2	spot	spot	NOUN
dss-287	564	3	diagrams	diagram	NOUN
dss-287	564	4	for	for	ADP
dss-287	564	5	200	200	NUM
dss-287	564	6	mm	mm	PROPN
dss-287	564	7	paraboloidal	paraboloidal	NOUN
dss-287	564	8	mirrors	mirror	NOUN
dss-287	564	9	[	[	X
dss-287	564	10	3	3	NUM
dss-287	564	11	]	]	ADJ
dss-287	564	12	dss	dss	NOUN
dss-287	564	13	vol	vol	NOUN
dss-287	564	14	.	.	PROPN
dss-287	565	1	6	6	NUM
dss-287	565	2	,	,	PUNCT
dss-287	565	3	no	no	INTJ
dss-287	565	4	.	.	NOUN
dss-287	565	5	1	1	NUM
dss-287	565	6	,	,	PUNCT
dss-287	565	7	2025	2025	NUM
dss-287	565	8	,	,	PUNCT
dss-287	565	9	pp.49	pp.49	NOUN
dss-287	565	10	-	-	SYM
dss-287	565	11	90	90	NUM
dss-287	565	12	70	70	NUM
dss-287	565	13	assessing	assess	VERB
dss-287	565	14	the	the	DET
dss-287	565	15	newtonian	newtonian	ADJ
dss-287	565	16	telescope	telescope	NOUN
dss-287	565	17	’s	’s	PART
dss-287	565	18	field	field	NOUN
dss-287	565	19	that	that	PRON
dss-287	565	20	is	be	AUX
dss-287	565	21	usable	usable	ADJ
dss-287	565	22	for	for	ADP
dss-287	565	23	photography	photography	NOUN
dss-287	565	24	is	be	AUX
dss-287	565	25	challenging	challenge	VERB
dss-287	565	26	because	because	SCONJ
dss-287	565	27	photographic	photographic	ADJ
dss-287	565	28	film	film	NOUN
dss-287	565	29	or	or	CCONJ
dss-287	565	30	ccd	ccd	PROPN
dss-287	565	31	/	/	SYM
dss-287	565	32	cmos	cmos	NOUN
dss-287	565	33	sensors	sensor	NOUN
dss-287	565	34	may	may	AUX
dss-287	565	35	not	not	PART
dss-287	565	36	capture	capture	VERB
dss-287	565	37	the	the	DET
dss-287	565	38	faint	faint	ADJ
dss-287	565	39	outer	outer	ADJ
dss-287	565	40	parts	part	NOUN
dss-287	565	41	of	of	ADP
dss-287	565	42	the	the	DET
dss-287	565	43	comatic	comatic	ADJ
dss-287	565	44	blur	blur	NOUN
dss-287	565	45	.	.	PUNCT
dss-287	566	1	as	as	ADP
dss-287	566	2	a	a	DET
dss-287	566	3	result	result	NOUN
dss-287	566	4	,	,	PUNCT
dss-287	566	5	actual	actual	ADJ
dss-287	566	6	photographic	photographic	ADJ
dss-287	566	7	images	image	NOUN
dss-287	566	8	appear	appear	VERB
dss-287	566	9	smaller	small	ADJ
dss-287	566	10	than	than	SCONJ
dss-287	566	11	spot	spot	NOUN
dss-287	566	12	diagrams	diagram	NOUN
dss-287	566	13	suggest	suggest	VERB
dss-287	566	14	.	.	PUNCT
dss-287	567	1	however	however	ADV
dss-287	567	2	,	,	PUNCT
dss-287	567	3	since	since	SCONJ
dss-287	567	4	some	some	DET
dss-287	567	5	light	light	NOUN
dss-287	567	6	is	be	AUX
dss-287	567	7	lost	lose	VERB
dss-287	567	8	from	from	ADP
dss-287	567	9	the	the	DET
dss-287	567	10	image	image	NOUN
dss-287	567	11	center	center	NOUN
dss-287	567	12	,	,	PUNCT
dss-287	567	13	the	the	DET
dss-287	567	14	limiting	limit	VERB
dss-287	567	15	magnitude	magnitude	NOUN
dss-287	567	16	is	be	AUX
dss-287	567	17	reduced	reduce	VERB
dss-287	567	18	.	.	PUNCT
dss-287	568	1	when	when	SCONJ
dss-287	568	2	high	high	ADJ
dss-287	568	3	-	-	PUNCT
dss-287	568	4	quality	quality	NOUN
dss-287	568	5	photographic	photographic	ADJ
dss-287	568	6	results	result	NOUN
dss-287	568	7	are	be	AUX
dss-287	568	8	required	require	VERB
dss-287	568	9	,	,	PUNCT
dss-287	568	10	the	the	DET
dss-287	568	11	0.025	0.025	NUM
dss-287	568	12	mm	mm	NOUN
dss-287	568	13	spot	spot	NOUN
dss-287	568	14	size	size	NOUN
dss-287	568	15	criterion	criterion	NOUN
dss-287	568	16	should	should	AUX
dss-287	568	17	be	be	AUX
dss-287	568	18	used	use	VERB
dss-287	568	19	.	.	PUNCT
dss-287	569	1	for	for	ADP
dss-287	569	2	less	less	ADV
dss-287	569	3	demanding	demanding	ADJ
dss-287	569	4	applications	application	NOUN
dss-287	569	5	,	,	PUNCT
dss-287	569	6	a	a	DET
dss-287	569	7	blur	blur	NOUN
dss-287	569	8	of	of	ADP
dss-287	569	9	up	up	ADP
dss-287	569	10	to	to	PART
dss-287	569	11	0.100	0.100	NUM
dss-287	569	12	mm	mm	NOUN
dss-287	569	13	at	at	ADP
dss-287	569	14	the	the	DET
dss-287	569	15	edge	edge	NOUN
dss-287	569	16	of	of	ADP
dss-287	569	17	the	the	DET
dss-287	569	18	film	film	NOUN
dss-287	569	19	frame	frame	NOUN
dss-287	569	20	generally	generally	ADV
dss-287	569	21	produces	produce	VERB
dss-287	569	22	images	image	NOUN
dss-287	569	23	that	that	PRON
dss-287	569	24	are	be	AUX
dss-287	569	25	acceptable	acceptable	ADJ
dss-287	569	26	to	to	ADP
dss-287	569	27	most	most	ADJ
dss-287	569	28	astrophotographers	astrophotographer	NOUN
dss-287	569	29	.	.	PUNCT
dss-287	570	1	cassegrain	cassegrain	NOUN
dss-287	570	2	telescopes	telescope	NOUN
dss-287	570	3	often	often	ADV
dss-287	570	4	suffer	suffer	VERB
dss-287	570	5	from	from	ADP
dss-287	570	6	sky	sky	NOUN
dss-287	570	7	flooding	flooding	NOUN
dss-287	570	8	,	,	PUNCT
dss-287	570	9	where	where	SCONJ
dss-287	570	10	stray	stray	ADJ
dss-287	570	11	light	light	NOUN
dss-287	570	12	reaches	reach	VERB
dss-287	570	13	the	the	DET
dss-287	570	14	focal	focal	ADJ
dss-287	570	15	surface	surface	NOUN
dss-287	570	16	without	without	ADP
dss-287	570	17	mirror	mirror	NOUN
dss-287	570	18	reflection	reflection	NOUN
dss-287	570	19	,	,	PUNCT
dss-287	570	20	reducing	reduce	VERB
dss-287	570	21	contrast	contrast	NOUN
dss-287	570	22	.	.	PUNCT
dss-287	571	1	baffling	baffle	VERB
dss-287	571	2	is	be	AUX
dss-287	571	3	needed	need	VERB
dss-287	571	4	to	to	PART
dss-287	571	5	block	block	VERB
dss-287	571	6	this	this	DET
dss-287	571	7	stray	stray	NOUN
dss-287	571	8	light	light	NOUN
dss-287	571	9	,	,	PUNCT
dss-287	571	10	but	but	CCONJ
dss-287	571	11	it	it	PRON
dss-287	571	12	increases	increase	VERB
dss-287	571	13	central	central	ADJ
dss-287	571	14	obstruction	obstruction	NOUN
dss-287	571	15	and	and	CCONJ
dss-287	571	16	may	may	AUX
dss-287	571	17	cause	cause	VERB
dss-287	571	18	light	light	ADJ
dss-287	571	19	loss	loss	NOUN
dss-287	571	20	at	at	ADP
dss-287	571	21	the	the	DET
dss-287	571	22	field	field	NOUN
dss-287	571	23	edges	edge	NOUN
dss-287	571	24	,	,	PUNCT
dss-287	571	25	especially	especially	ADV
dss-287	571	26	in	in	ADP
dss-287	571	27	wide	wide	ADJ
dss-287	571	28	-	-	PUNCT
dss-287	571	29	field	field	NOUN
dss-287	571	30	photography	photography	NOUN
dss-287	572	1	[	[	X
dss-287	572	2	3	3	NUM
dss-287	572	3	]	]	PUNCT
dss-287	572	4	.	.	PUNCT
dss-287	572	5	5.7	5.7	NUM
dss-287	572	6	image	image	NOUN
dss-287	572	7	quality	quality	NOUN
dss-287	572	8	in	in	ADP
dss-287	572	9	the	the	DET
dss-287	572	10	cassegrain	cassegrain	NOUN
dss-287	572	11	-	-	PUNCT
dss-287	572	12	type	type	NOUN
dss-287	572	13	reflecting	reflect	VERB
dss-287	572	14	telescope	telescope	NOUN
dss-287	572	15	cassegrain	cassegrain	NOUN
dss-287	572	16	telescopes	telescope	NOUN
dss-287	572	17	use	use	VERB
dss-287	572	18	a	a	DET
dss-287	572	19	concave	concave	ADJ
dss-287	572	20	primary	primary	ADJ
dss-287	572	21	mirror	mirror	NOUN
dss-287	572	22	and	and	CCONJ
dss-287	572	23	a	a	DET
dss-287	572	24	small	small	ADJ
dss-287	572	25	secondary	secondary	ADJ
dss-287	572	26	mirror	mirror	NOUN
dss-287	572	27	placed	place	VERB
dss-287	572	28	before	before	ADP
dss-287	572	29	the	the	DET
dss-287	572	30	primary	primary	NOUN
dss-287	572	31	’s	’s	PART
dss-287	572	32	focus	focus	NOUN
dss-287	572	33	.	.	PUNCT
dss-287	573	1	different	different	ADJ
dss-287	573	2	designs	design	NOUN
dss-287	573	3	vary	vary	VERB
dss-287	573	4	by	by	ADP
dss-287	573	5	mirror	mirror	NOUN
dss-287	573	6	shapes	shape	NOUN
dss-287	573	7	:	:	PUNCT
dss-287	573	8	classical	classical	ADJ
dss-287	573	9	(	(	PUNCT
dss-287	573	10	paraboloid	paraboloid	ADJ
dss-287	573	11	primary	primary	NOUN
dss-287	573	12	,	,	PUNCT
dss-287	573	13	hyperboloid	hyperboloid	ADJ
dss-287	573	14	secondary	secondary	ADJ
dss-287	573	15	)	)	PUNCT
dss-287	573	16	,	,	PUNCT
dss-287	573	17	dallkirkham	dallkirkham	PROPN
dss-287	573	18	(	(	PUNCT
dss-287	573	19	prolate	prolate	PROPN
dss-287	573	20	ellipsoid	ellipsoid	PROPN
dss-287	573	21	primary	primary	NOUN
dss-287	573	22	,	,	PUNCT
dss-287	573	23	spherical	spherical	ADJ
dss-287	573	24	secondary	secondary	ADJ
dss-287	573	25	)	)	PUNCT
dss-287	573	26	,	,	PUNCT
dss-287	573	27	ritchey	ritchey	NOUN
dss-287	573	28	-	-	PUNCT
dss-287	573	29	chrétien	chrétien	PROPN
dss-287	573	30	(	(	PUNCT
dss-287	573	31	both	both	CCONJ
dss-287	573	32	hyperboloid	hyperboloid	NOUN
dss-287	573	33	)	)	PUNCT
dss-287	573	34	,	,	PUNCT
dss-287	573	35	and	and	CCONJ
dss-287	573	36	pressmancamichel	pressmancamichel	PROPN
dss-287	573	37	(	(	PUNCT
dss-287	573	38	spherical	spherical	ADJ
dss-287	573	39	primary	primary	NOUN
dss-287	573	40	,	,	PUNCT
dss-287	573	41	oblate	oblate	ADJ
dss-287	573	42	ellipsoid	ellipsoid	NOUN
dss-287	573	43	secondary	secondary	ADJ
dss-287	573	44	)	)	PUNCT
dss-287	573	45	.	.	PUNCT
dss-287	574	1	the	the	DET
dss-287	574	2	secondary	secondary	ADJ
dss-287	574	3	mirror	mirror	NOUN
dss-287	574	4	reflects	reflect	VERB
dss-287	574	5	light	light	NOUN
dss-287	574	6	toward	toward	ADP
dss-287	574	7	the	the	DET
dss-287	574	8	primary	primary	NOUN
dss-287	574	9	,	,	PUNCT
dss-287	574	10	forming	form	VERB
dss-287	574	11	an	an	DET
dss-287	574	12	image	image	NOUN
dss-287	574	13	behind	behind	ADP
dss-287	574	14	it	it	PRON
dss-287	574	15	for	for	ADP
dss-287	574	16	easy	easy	ADJ
dss-287	574	17	observation	observation	NOUN
dss-287	574	18	or	or	CCONJ
dss-287	574	19	photography	photography	NOUN
dss-287	574	20	.	.	PUNCT
dss-287	575	1	the	the	DET
dss-287	575	2	secondary	secondary	ADJ
dss-287	575	3	also	also	ADV
dss-287	575	4	increases	increase	VERB
dss-287	575	5	the	the	DET
dss-287	575	6	system	system	NOUN
dss-287	575	7	’s	’s	PART
dss-287	575	8	focal	focal	ADJ
dss-287	575	9	length	length	NOUN
dss-287	575	10	but	but	CCONJ
dss-287	575	11	blocks	block	VERB
dss-287	575	12	some	some	DET
dss-287	575	13	light	light	NOUN
dss-287	575	14	,	,	PUNCT
dss-287	575	15	reducing	reduce	VERB
dss-287	575	16	brightness	brightness	NOUN
dss-287	575	17	and	and	CCONJ
dss-287	575	18	contrast	contrast	NOUN
dss-287	575	19	,	,	PUNCT
dss-287	575	20	so	so	CCONJ
dss-287	575	21	it	it	PRON
dss-287	575	22	’s	’s	AUX
dss-287	575	23	kept	keep	VERB
dss-287	575	24	as	as	ADV
dss-287	575	25	small	small	ADJ
dss-287	575	26	as	as	ADP
dss-287	575	27	possible	possible	ADJ
dss-287	575	28	.	.	PUNCT
dss-287	576	1	ideal	ideal	ADJ
dss-287	576	2	cassegrain	cassegrain	NOUN
dss-287	576	3	designs	design	NOUN
dss-287	576	4	feature	feature	VERB
dss-287	576	5	a	a	DET
dss-287	576	6	short	short	ADJ
dss-287	576	7	tube	tube	NOUN
dss-287	576	8	,	,	PUNCT
dss-287	576	9	small	small	ADJ
dss-287	576	10	secondary	secondary	ADJ
dss-287	576	11	,	,	PUNCT
dss-287	576	12	flat	flat	ADJ
dss-287	576	13	focal	focal	ADJ
dss-287	576	14	surface	surface	NOUN
dss-287	576	15	,	,	PUNCT
dss-287	576	16	and	and	CCONJ
dss-287	576	17	accessible	accessible	ADJ
dss-287	576	18	focal	focal	ADJ
dss-287	576	19	plane	plane	NOUN
dss-287	576	20	,	,	PUNCT
dss-287	576	21	but	but	CCONJ
dss-287	576	22	achieving	achieve	VERB
dss-287	576	23	all	all	PRON
dss-287	576	24	simultaneously	simultaneously	ADV
dss-287	576	25	is	be	AUX
dss-287	576	26	impossible	impossible	ADJ
dss-287	576	27	.	.	PUNCT
dss-287	577	1	field	field	NOUN
dss-287	577	2	curvature	curvature	NOUN
dss-287	577	3	,	,	PUNCT
dss-287	577	4	caused	cause	VERB
dss-287	577	5	by	by	ADP
dss-287	577	6	the	the	DET
dss-287	577	7	secondary	secondary	ADJ
dss-287	577	8	’s	’s	PART
dss-287	577	9	shape	shape	NOUN
dss-287	577	10	,	,	PUNCT
dss-287	577	11	is	be	AUX
dss-287	577	12	a	a	DET
dss-287	577	13	key	key	ADJ
dss-287	577	14	challenge	challenge	NOUN
dss-287	577	15	and	and	CCONJ
dss-287	577	16	is	be	AUX
dss-287	577	17	more	more	ADV
dss-287	577	18	pronounced	pronounced	ADJ
dss-287	577	19	than	than	ADP
dss-287	577	20	in	in	ADP
dss-287	577	21	newtonian	newtonian	ADJ
dss-287	577	22	or	or	CCONJ
dss-287	577	23	refractor	refractor	NOUN
dss-287	577	24	telescopes	telescope	NOUN
dss-287	577	25	.	.	PUNCT
dss-287	578	1	the	the	DET
dss-287	578	2	field	field	NOUN
dss-287	578	3	curves	curve	VERB
dss-287	578	4	inward	inward	ADV
dss-287	578	5	(	(	PUNCT
dss-287	578	6	concave	concave	VERB
dss-287	578	7	to	to	ADP
dss-287	578	8	the	the	DET
dss-287	578	9	sky	sky	NOUN
dss-287	578	10	)	)	PUNCT
dss-287	578	11	.	.	PUNCT
dss-287	579	1	a	a	DET
dss-287	579	2	flat	flat	ADJ
dss-287	579	3	focal	focal	ADJ
dss-287	579	4	surface	surface	NOUN
dss-287	579	5	requires	require	VERB
dss-287	579	6	equal	equal	ADJ
dss-287	579	7	radii	radius	NOUN
dss-287	579	8	of	of	ADP
dss-287	579	9	curvature	curvature	NOUN
dss-287	579	10	of	of	ADP
dss-287	579	11	both	both	DET
dss-287	579	12	mirrors	mirror	NOUN
dss-287	579	13	,	,	PUNCT
dss-287	579	14	which	which	PRON
dss-287	579	15	conflicts	conflict	VERB
dss-287	579	16	with	with	ADP
dss-287	579	17	having	have	VERB
dss-287	579	18	a	a	DET
dss-287	579	19	short	short	ADJ
dss-287	579	20	tube	tube	NOUN
dss-287	579	21	and	and	CCONJ
dss-287	579	22	a	a	DET
dss-287	579	23	small	small	ADJ
dss-287	579	24	secondary	secondary	ADJ
dss-287	579	25	.	.	PUNCT
dss-287	580	1	high	high	ADJ
dss-287	580	2	secondary	secondary	ADJ
dss-287	580	3	magnification	magnification	NOUN
dss-287	580	4	designs	design	NOUN
dss-287	580	5	favor	favor	VERB
dss-287	580	6	a	a	DET
dss-287	580	7	short	short	ADJ
dss-287	580	8	tube	tube	NOUN
dss-287	580	9	and	and	CCONJ
dss-287	580	10	small	small	ADJ
dss-287	580	11	secondary	secondary	ADJ
dss-287	580	12	but	but	CCONJ
dss-287	580	13	suffer	suffer	VERB
dss-287	580	14	from	from	ADP
dss-287	580	15	strong	strong	ADJ
dss-287	580	16	field	field	NOUN
dss-287	580	17	curvature	curvature	NOUN
dss-287	580	18	,	,	PUNCT
dss-287	580	19	which	which	PRON
dss-287	580	20	is	be	AUX
dss-287	580	21	fine	fine	ADJ
dss-287	580	22	for	for	ADP
dss-287	580	23	visual	visual	ADJ
dss-287	580	24	use	use	NOUN
dss-287	580	25	but	but	CCONJ
dss-287	580	26	problematic	problematic	ADJ
dss-287	580	27	for	for	ADP
dss-287	580	28	photography	photography	NOUN
dss-287	580	29	.	.	PUNCT
dss-287	581	1	field	field	NOUN
dss-287	581	2	curvature	curvature	NOUN
dss-287	581	3	worsens	worsen	VERB
dss-287	581	4	as	as	SCONJ
dss-287	581	5	the	the	DET
dss-287	581	6	secondary	secondary	ADJ
dss-287	581	7	gets	get	VERB
dss-287	581	8	smaller	small	ADJ
dss-287	581	9	and	and	CCONJ
dss-287	581	10	the	the	DET
dss-287	581	11	mirrors	mirror	NOUN
dss-287	581	12	get	get	VERB
dss-287	581	13	closer	close	ADJ
dss-287	581	14	.	.	PUNCT
dss-287	582	1	designers	designer	NOUN
dss-287	582	2	must	must	AUX
dss-287	582	3	balance	balance	VERB
dss-287	582	4	between	between	ADP
dss-287	582	5	visual	visual	ADJ
dss-287	582	6	telescopes	telescope	NOUN
dss-287	582	7	with	with	ADP
dss-287	582	8	small	small	ADJ
dss-287	582	9	secondaries	secondary	NOUN
dss-287	582	10	and	and	CCONJ
dss-287	582	11	strong	strong	ADJ
dss-287	582	12	curvature	curvature	NOUN
dss-287	582	13	and	and	CCONJ
dss-287	582	14	photographic	photographic	ADJ
dss-287	582	15	telescopes	telescope	NOUN
dss-287	582	16	with	with	ADP
dss-287	582	17	larger	large	ADJ
dss-287	582	18	secondaries	secondary	NOUN
dss-287	582	19	and	and	CCONJ
dss-287	582	20	flatter	flatter	NOUN
dss-287	582	21	fields	field	NOUN
dss-287	582	22	.	.	PUNCT
dss-287	583	1	field	field	NOUN
dss-287	583	2	curvature	curvature	NOUN
dss-287	583	3	can	can	AUX
dss-287	583	4	be	be	AUX
dss-287	583	5	corrected	correct	VERB
dss-287	583	6	with	with	ADP
dss-287	583	7	curved	curved	ADJ
dss-287	583	8	film	film	NOUN
dss-287	583	9	or	or	CCONJ
dss-287	583	10	field	field	NOUN
dss-287	583	11	flatteners	flattener	NOUN
dss-287	583	12	and	and	CCONJ
dss-287	583	13	mostly	mostly	ADV
dss-287	583	14	affects	affect	VERB
dss-287	583	15	amateur	amateur	ADJ
dss-287	583	16	scopes	scope	NOUN
dss-287	583	17	;	;	PUNCT
dss-287	583	18	professionals	professional	NOUN
dss-287	583	19	use	use	VERB
dss-287	583	20	additional	additional	ADJ
dss-287	583	21	optics	optic	NOUN
dss-287	583	22	or	or	CCONJ
dss-287	583	23	curved	curved	ADJ
dss-287	583	24	plates	plate	NOUN
dss-287	583	25	to	to	PART
dss-287	583	26	compensate	compensate	VERB
dss-287	583	27	[	[	X
dss-287	583	28	3	3	NUM
dss-287	583	29	]	]	PUNCT
dss-287	583	30	.	.	PUNCT
dss-287	584	1	a	a	DET
dss-287	584	2	cassegrain	cassegrain	NOUN
dss-287	584	3	telescope	telescope	NOUN
dss-287	584	4	can	can	AUX
dss-287	584	5	be	be	AUX
dss-287	584	6	designed	design	VERB
dss-287	584	7	to	to	PART
dss-287	584	8	eliminate	eliminate	VERB
dss-287	584	9	spherical	spherical	ADJ
dss-287	584	10	aberration	aberration	NOUN
dss-287	584	11	,	,	PUNCT
dss-287	584	12	allowing	allow	VERB
dss-287	584	13	for	for	ADP
dss-287	584	14	a	a	DET
dss-287	584	15	sharp	sharp	ADJ
dss-287	584	16	image	image	NOUN
dss-287	584	17	at	at	ADP
dss-287	584	18	the	the	DET
dss-287	584	19	optical	optical	ADJ
dss-287	584	20	axis	axis	NOUN
dss-287	584	21	,	,	PUNCT
dss-287	584	22	as	as	ADV
dss-287	584	23	long	long	ADV
dss-287	584	24	as	as	SCONJ
dss-287	584	25	the	the	DET
dss-287	584	26	correct	correct	ADJ
dss-287	584	27	shapes	shape	NOUN
dss-287	584	28	are	be	AUX
dss-287	584	29	selected	select	VERB
dss-287	584	30	for	for	ADP
dss-287	584	31	both	both	CCONJ
dss-287	584	32	the	the	DET
dss-287	584	33	primary	primary	ADJ
dss-287	584	34	and	and	CCONJ
dss-287	584	35	secondary	secondary	ADJ
dss-287	584	36	mirrors	mirror	NOUN
dss-287	584	37	.	.	PUNCT
dss-287	585	1	but	but	CCONJ
dss-287	585	2	the	the	DET
dss-287	585	3	clarity	clarity	NOUN
dss-287	585	4	of	of	ADP
dss-287	585	5	off	off	ADP
dss-287	585	6	-	-	PUNCT
dss-287	585	7	axis	axis	NOUN
dss-287	585	8	images	image	NOUN
dss-287	585	9	is	be	AUX
dss-287	585	10	influenced	influence	VERB
dss-287	585	11	by	by	ADP
dss-287	585	12	the	the	DET
dss-287	585	13	shapes	shape	NOUN
dss-287	585	14	of	of	ADP
dss-287	585	15	these	these	DET
dss-287	585	16	surfaces	surface	NOUN
dss-287	585	17	.	.	PUNCT
dss-287	586	1	the	the	DET
dss-287	586	2	four	four	NUM
dss-287	586	3	key	key	ADJ
dss-287	586	4	combinations	combination	NOUN
dss-287	586	5	of	of	ADP
dss-287	586	6	cassegrain	cassegrain	NOUN
dss-287	586	7	telescopes	telescope	NOUN
dss-287	586	8	are	be	AUX
dss-287	586	9	presented	present	VERB
dss-287	586	10	in	in	ADP
dss-287	586	11	table	table	NOUN
dss-287	586	12	3	3	NUM
dss-287	586	13	.	.	X
dss-287	587	1	note	note	VERB
dss-287	587	2	that	that	SCONJ
dss-287	587	3	schwarzschild	schwarzschild	NOUN
dss-287	587	4	constants	constant	NOUN
dss-287	587	5	(	(	PUNCT
dss-287	587	6	sc	sc	NOUN
dss-287	587	7	)	)	PUNCT
dss-287	587	8	are	be	AUX
dss-287	587	9	following	follow	VERB
dss-287	587	10	:	:	PUNCT
dss-287	587	11	a	a	DET
dss-287	587	12	sphere	sphere	NOUN
dss-287	587	13	has	have	VERB
dss-287	587	14	an	an	DET
dss-287	587	15	sc	sc	NOUN
dss-287	587	16	of	of	ADP
dss-287	587	17	0	0	NUM
dss-287	587	18	(	(	PUNCT
dss-287	587	19	indicating	indicate	VERB
dss-287	587	20	no	no	DET
dss-287	587	21	deformation	deformation	NOUN
dss-287	587	22	)	)	PUNCT
dss-287	587	23	,	,	PUNCT
dss-287	587	24	prolate	prolate	PROPN
dss-287	587	25	ellipsoid	ellipsoid	PROPN
dss-287	587	26	has	have	VERB
dss-287	587	27	an	an	DET
dss-287	587	28	sc	sc	NOUN
dss-287	587	29	between	between	ADP
dss-287	587	30	-1	-1	PUNCT
dss-287	587	31	and	and	CCONJ
dss-287	587	32	0	0	NUM
dss-287	587	33	,	,	PUNCT
dss-287	587	34	paraboloid	paraboloid	NOUN
dss-287	587	35	has	have	VERB
dss-287	587	36	an	an	DET
dss-287	587	37	sc	sc	PROPN
dss-287	587	38	equal	equal	ADJ
dss-287	587	39	to	to	ADP
dss-287	587	40	-1	-1	VERB
dss-287	587	41	,	,	PUNCT
dss-287	587	42	hyperboloid	hyperboloid	PROPN
dss-287	587	43	has	have	VERB
dss-287	587	44	an	an	DET
dss-287	587	45	sc	sc	NOUN
dss-287	587	46	less	less	ADJ
dss-287	587	47	than	than	ADP
dss-287	587	48	-1	-1	ADJ
dss-287	587	49	,	,	PUNCT
dss-287	587	50	and	and	CCONJ
dss-287	587	51	an	an	DET
dss-287	587	52	oblate	oblate	ADJ
dss-287	587	53	ellipsoid	ellipsoid	NOUN
dss-287	587	54	has	have	VERB
dss-287	587	55	an	an	DET
dss-287	587	56	sc	sc	NOUN
dss-287	587	57	greater	great	ADJ
dss-287	587	58	than	than	ADP
dss-287	587	59	0	0	NUM
dss-287	587	60	.	.	PUNCT
dss-287	587	61	table	table	NOUN
dss-287	587	62	3	3	NUM
dss-287	587	63	.	.	PUNCT
dss-287	588	1	characteristics	characteristic	NOUN
dss-287	588	2	of	of	ADP
dss-287	588	3	four	four	NUM
dss-287	588	4	200	200	NUM
dss-287	588	5	mm	mm	NOUN
dss-287	588	6	f/8	f/8	NOUN
dss-287	588	7	cassegrain	cassegrain	NOUN
dss-287	588	8	telescopes	telescope	NOUN
dss-287	588	9	(	(	PUNCT
dss-287	588	10	dimensions	dimension	NOUN
dss-287	588	11	in	in	ADP
dss-287	588	12	mm	mm	PROPN
dss-287	588	13	)	)	PUNCT
dss-287	589	1	[	[	X
dss-287	589	2	3	3	NUM
dss-287	589	3	]	]	PUNCT
dss-287	589	4	classical	classical	ADJ
dss-287	589	5	ritchey	ritchey	NOUN
dss-287	589	6	-	-	PUNCT
dss-287	589	7	chrétien	chrétien	PROPN
dss-287	589	8	dall	dall	PROPN
dss-287	589	9	-	-	PROPN
dss-287	589	10	kirkham	kirkham	PROPN
dss-287	589	11	pressmann	pressmann	PROPN
dss-287	589	12	-	-	PUNCT
dss-287	589	13	camichel	camichel	PROPN
dss-287	589	14	focal	focal	ADJ
dss-287	589	15	ratio	ratio	NOUN
dss-287	589	16	8	8	NUM
dss-287	589	17	8	8	NUM
dss-287	589	18	8	8	NUM
dss-287	589	19	8	8	NUM
dss-287	589	20	effective	effective	ADJ
dss-287	589	21	focal	focal	ADJ
dss-287	589	22	length	length	NOUN
dss-287	589	23	1600	1600	NUM
dss-287	589	24	1600	1600	NUM
dss-287	589	25	1600	1600	NUM
dss-287	589	26	1600	1600	NUM
dss-287	589	27	secondary	secondary	ADJ
dss-287	589	28	magnification	magnification	NOUN
dss-287	589	29	8/3	8/3	NUM
dss-287	589	30	8/3	8/3	NUM
dss-287	589	31	8/3	8/3	NUM
dss-287	589	32	8/3	8/3	NUM
dss-287	589	33	primary	primary	ADJ
dss-287	589	34	radius	radius	NOUN
dss-287	589	35	of	of	ADP
dss-287	589	36	curvature	curvature	NOUN
dss-287	589	37	-1200	-1200	PROPN
dss-287	589	38	-1200	-1200	PROPN
dss-287	589	39	-1200	-1200	PROPN
dss-287	589	40	-1200	-1200	PROPN
dss-287	589	41	primary	primary	ADJ
dss-287	589	42	schwarzschild	schwarzschild	NOUN
dss-287	589	43	constant	constant	ADJ
dss-287	589	44	-1	-1	ADP
dss-287	589	45	-1.13682	-1.13682	ADJ
dss-287	589	46	-0.61328	-0.61328	PROPN
dss-287	589	47	0	0	NUM
dss-287	589	48	secondary	secondary	ADJ
dss-287	589	49	radius	radius	NOUN
dss-287	589	50	of	of	ADP
dss-287	589	51	curvature	curvature	NOUN
dss-287	589	52	-628.36	-628.36	NOUN
dss-287	589	53	-628.36	-628.36	NOUN
dss-287	589	54	-628.36	-628.36	NOUN
dss-287	589	55	-628.36	-628.36	ADJ
dss-287	589	56	secondary	secondary	ADJ
dss-287	589	57	schwarzschild	schwarzschild	NOUN
dss-287	589	58	constant	constant	ADJ
dss-287	590	1	-4.84	-4.84	NUM
dss-287	590	2	-6.55243	-6.55243	NOUN
dss-287	590	3	0	0	NUM
dss-287	591	1	7.6755	7.6755	NUM
dss-287	591	2	mirrors	mirror	NOUN
dss-287	591	3	separation	separation	NOUN
dss-287	591	4	-403.64	-403.64	PROPN
dss-287	591	5	-403.64	-403.64	PROPN
dss-287	591	6	-403.64	-403.64	PROPN
dss-287	591	7	-403.64	-403.64	PROPN
dss-287	591	8	back	back	ADV
dss-287	591	9	focal	focal	ADJ
dss-287	591	10	length	length	NOUN
dss-287	591	11	523.64	523.64	NUM
dss-287	591	12	523.64	523.64	NUM
dss-287	591	13	523.64	523.64	NUM
dss-287	591	14	523.64	523.64	NUM
dss-287	591	15	1	1	NUM
dss-287	591	16	°	°	NUM
dss-287	591	17	field	field	NOUN
dss-287	591	18	27.9	27.9	NUM
dss-287	591	19	27.9	27.9	NUM
dss-287	591	20	27.9	27.9	NUM
dss-287	591	21	27.9	27.9	NUM
dss-287	591	22	dss	dss	NOUN
dss-287	591	23	vol	vol	NOUN
dss-287	591	24	.	.	PROPN
dss-287	591	25	6	6	NUM
dss-287	591	26	,	,	PUNCT
dss-287	591	27	no	no	INTJ
dss-287	591	28	.	.	NOUN
dss-287	591	29	1	1	NUM
dss-287	591	30	,	,	PUNCT
dss-287	591	31	2025	2025	NUM
dss-287	591	32	,	,	PUNCT
dss-287	591	33	pp.49	pp.49	NOUN
dss-287	591	34	-	-	SYM
dss-287	591	35	90	90	NUM
dss-287	591	36	71	71	NUM
dss-287	591	37	some	some	DET
dss-287	591	38	opticians	optician	NOUN
dss-287	591	39	prefer	prefer	VERB
dss-287	591	40	the	the	DET
dss-287	591	41	simpler	simple	ADJ
dss-287	591	42	spherical	spherical	ADJ
dss-287	591	43	secondary	secondary	NOUN
dss-287	591	44	of	of	ADP
dss-287	591	45	the	the	DET
dss-287	591	46	dall	dall	PROPN
dss-287	591	47	-	-	PUNCT
dss-287	591	48	kirkham	kirkham	PROPN
dss-287	591	49	over	over	ADP
dss-287	591	50	the	the	DET
dss-287	591	51	more	more	ADV
dss-287	591	52	complex	complex	ADJ
dss-287	591	53	hyperbolic	hyperbolic	ADJ
dss-287	591	54	secondary	secondary	NOUN
dss-287	591	55	of	of	ADP
dss-287	591	56	the	the	DET
dss-287	591	57	classical	classical	ADJ
dss-287	591	58	cassegrain	cassegrain	NOUN
dss-287	591	59	.	.	PUNCT
dss-287	592	1	while	while	SCONJ
dss-287	592	2	easier	easy	ADJ
dss-287	592	3	to	to	PART
dss-287	592	4	make	make	VERB
dss-287	592	5	,	,	PUNCT
dss-287	592	6	the	the	DET
dss-287	592	7	dall	dall	PROPN
dss-287	592	8	-	-	PUNCT
dss-287	592	9	kirkham	kirkham	PROPN
dss-287	592	10	suffers	suffer	VERB
dss-287	592	11	from	from	ADP
dss-287	592	12	strong	strong	ADJ
dss-287	592	13	coma	coma	NOUN
dss-287	592	14	,	,	PUNCT
dss-287	592	15	limiting	limit	VERB
dss-287	592	16	its	its	PRON
dss-287	592	17	field	field	NOUN
dss-287	592	18	.	.	PUNCT
dss-287	593	1	the	the	DET
dss-287	593	2	pressmann	pressmann	NOUN
dss-287	593	3	-	-	PUNCT
dss-287	593	4	camichel	camichel	PROPN
dss-287	593	5	,	,	PUNCT
dss-287	593	6	with	with	ADP
dss-287	593	7	a	a	DET
dss-287	593	8	spherical	spherical	ADJ
dss-287	593	9	primary	primary	NOUN
dss-287	593	10	and	and	CCONJ
dss-287	593	11	heavily	heavily	ADV
dss-287	593	12	deformed	deform	VERB
dss-287	593	13	secondary	secondary	ADJ
dss-287	593	14	,	,	PUNCT
dss-287	593	15	also	also	ADV
dss-287	593	16	shows	show	VERB
dss-287	593	17	severe	severe	ADJ
dss-287	593	18	coma	coma	NOUN
dss-287	593	19	and	and	CCONJ
dss-287	593	20	supports	support	VERB
dss-287	593	21	only	only	ADV
dss-287	593	22	a	a	DET
dss-287	593	23	narrow	narrow	ADJ
dss-287	593	24	field	field	NOUN
dss-287	593	25	.	.	PUNCT
dss-287	594	1	the	the	DET
dss-287	594	2	ritchey	ritchey	NOUN
dss-287	594	3	-	-	PUNCT
dss-287	594	4	chrétien	chrétien	PROPN
dss-287	594	5	corrects	correct	NOUN
dss-287	594	6	coma	coma	NOUN
dss-287	594	7	and	and	CCONJ
dss-287	594	8	allows	allow	VERB
dss-287	594	9	a	a	DET
dss-287	594	10	wider	wide	ADJ
dss-287	594	11	field	field	NOUN
dss-287	594	12	,	,	PUNCT
dss-287	594	13	but	but	CCONJ
dss-287	594	14	its	its	PRON
dss-287	594	15	highly	highly	ADV
dss-287	594	16	aspheric	aspheric	ADJ
dss-287	594	17	mirrors	mirror	NOUN
dss-287	594	18	are	be	AUX
dss-287	594	19	difficult	difficult	ADJ
dss-287	594	20	to	to	PART
dss-287	594	21	produce	produce	VERB
dss-287	594	22	,	,	PUNCT
dss-287	594	23	making	make	VERB
dss-287	594	24	it	it	PRON
dss-287	594	25	favored	favor	VERB
dss-287	594	26	only	only	ADV
dss-287	594	27	by	by	ADP
dss-287	594	28	professionals	professional	NOUN
dss-287	594	29	.	.	PUNCT
dss-287	595	1	to	to	PART
dss-287	595	2	compare	compare	VERB
dss-287	595	3	these	these	DET
dss-287	595	4	systems	system	NOUN
dss-287	595	5	,	,	PUNCT
dss-287	595	6	spot	spot	NOUN
dss-287	595	7	diagrams	diagram	NOUN
dss-287	595	8	(	(	PUNCT
dss-287	595	9	fig	fig	NOUN
dss-287	595	10	.	.	PUNCT
dss-287	595	11	10	10	NUM
dss-287	595	12	)	)	PUNCT
dss-287	595	13	were	be	AUX
dss-287	595	14	created	create	VERB
dss-287	595	15	for	for	ADP
dss-287	595	16	four	four	NUM
dss-287	595	17	designs	design	NOUN
dss-287	595	18	with	with	ADP
dss-287	595	19	identical	identical	ADJ
dss-287	595	20	focal	focal	ADJ
dss-287	595	21	ratios	ratio	NOUN
dss-287	595	22	but	but	CCONJ
dss-287	595	23	different	different	ADJ
dss-287	595	24	surface	surface	NOUN
dss-287	595	25	shapes	shape	NOUN
dss-287	595	26	,	,	PUNCT
dss-287	595	27	as	as	SCONJ
dss-287	595	28	reported	report	VERB
dss-287	595	29	in	in	ADP
dss-287	595	30	[	[	X
dss-287	595	31	3	3	NUM
dss-287	595	32	]	]	PUNCT
dss-287	595	33	.	.	PUNCT
dss-287	596	1	each	each	PRON
dss-287	596	2	had	have	VERB
dss-287	596	3	a	a	DET
dss-287	596	4	200	200	NUM
dss-287	596	5	mm	mm	NUM
dss-287	596	6	aperture	aperture	NOUN
dss-287	596	7	,	,	PUNCT
dss-287	596	8	f/2.67	f/2.67	NOUN
dss-287	596	9	primary	primary	NOUN
dss-287	596	10	,	,	PUNCT
dss-287	596	11	and	and	CCONJ
dss-287	596	12	a	a	DET
dss-287	596	13	focal	focal	ADJ
dss-287	596	14	surface	surface	NOUN
dss-287	596	15	120	120	NUM
dss-287	596	16	mm	mm	NOUN
dss-287	596	17	behind	behind	ADP
dss-287	596	18	the	the	DET
dss-287	596	19	primary	primary	NOUN
dss-287	596	20	.	.	PUNCT
dss-287	597	1	diagrams	diagram	NOUN
dss-287	597	2	show	show	VERB
dss-287	597	3	that	that	SCONJ
dss-287	597	4	dall	dall	PROPN
dss-287	597	5	-	-	PUNCT
dss-287	597	6	kirkham	kirkham	PROPN
dss-287	597	7	and	and	CCONJ
dss-287	597	8	pressmann	pressmann	PROPN
dss-287	597	9	-	-	PUNCT
dss-287	597	10	camichel	camichel	PROPN
dss-287	597	11	are	be	AUX
dss-287	597	12	unsuitable	unsuitable	ADJ
dss-287	597	13	for	for	ADP
dss-287	597	14	wide	wide	ADJ
dss-287	597	15	-	-	PUNCT
dss-287	597	16	field	field	NOUN
dss-287	597	17	imaging	imaging	NOUN
dss-287	597	18	due	due	ADP
dss-287	597	19	to	to	ADP
dss-287	597	20	coma	coma	NOUN
dss-287	597	21	.	.	PUNCT
dss-287	598	1	the	the	DET
dss-287	598	2	ritchey	ritchey	PROPN
dss-287	598	3	-	-	PUNCT
dss-287	598	4	chrétien	chrétien	PROPN
dss-287	598	5	offers	offer	VERB
dss-287	598	6	round	round	ADJ
dss-287	598	7	star	star	NOUN
dss-287	598	8	images	image	NOUN
dss-287	598	9	,	,	PUNCT
dss-287	598	10	ideal	ideal	NOUN
dss-287	598	11	for	for	ADP
dss-287	598	12	photography	photography	NOUN
dss-287	598	13	,	,	PUNCT
dss-287	598	14	but	but	CCONJ
dss-287	598	15	shows	show	VERB
dss-287	598	16	increasing	increase	VERB
dss-287	598	17	astigmatism	astigmatism	NOUN
dss-287	598	18	beyond	beyond	ADP
dss-287	598	19	20	20	NUM
dss-287	598	20	mm	mm	NOUN
dss-287	598	21	off	off	ADP
dss-287	598	22	-	-	PUNCT
dss-287	598	23	axis	axis	NOUN
dss-287	598	24	and	and	CCONJ
dss-287	598	25	has	have	VERB
dss-287	598	26	the	the	DET
dss-287	598	27	strongest	strong	ADJ
dss-287	598	28	field	field	NOUN
dss-287	598	29	curvature	curvature	NOUN
dss-287	598	30	.	.	PUNCT
dss-287	599	1	the	the	DET
dss-287	599	2	classical	classical	ADJ
dss-287	599	3	cassegrain	cassegrain	NOUN
dss-287	599	4	matches	match	VERB
dss-287	599	5	newtonian	newtonian	ADJ
dss-287	599	6	image	image	NOUN
dss-287	599	7	quality	quality	NOUN
dss-287	599	8	but	but	CCONJ
dss-287	599	9	with	with	ADP
dss-287	599	10	more	more	ADV
dss-287	599	11	pronounced	pronounced	ADJ
dss-287	599	12	field	field	NOUN
dss-287	599	13	curvature	curvature	NOUN
dss-287	599	14	.	.	PUNCT
dss-287	600	1	fig	fig	NOUN
dss-287	600	2	.	.	PUNCT
dss-287	601	1	10	10	NUM
dss-287	601	2	spot	spot	NOUN
dss-287	601	3	diagrams	diagram	NOUN
dss-287	601	4	of	of	ADP
dss-287	601	5	four	four	NUM
dss-287	601	6	different	different	ADJ
dss-287	601	7	types	type	NOUN
dss-287	601	8	of	of	ADP
dss-287	601	9	200	200	NUM
dss-287	601	10	mm	mm	NOUN
dss-287	601	11	f/8	f/8	NOUN
dss-287	601	12	cassegrain	cassegrain	NOUN
dss-287	601	13	telescopes	telescope	NOUN
dss-287	601	14	[	[	X
dss-287	601	15	3	3	X
dss-287	601	16	]	]	SYM
dss-287	601	17	6	6	NUM
dss-287	601	18	.	.	PUNCT
dss-287	601	19	catadioptric	catadioptric	NOUN
dss-287	601	20	telescopes	telescope	NOUN
dss-287	601	21	catadioptric	catadioptric	NOUN
dss-287	601	22	telescopes	telescope	NOUN
dss-287	601	23	(	(	PUNCT
dss-287	601	24	fig	fig	NOUN
dss-287	601	25	.	.	NOUN
dss-287	601	26	1	1	NUM
dss-287	601	27	)	)	PUNCT
dss-287	601	28	are	be	AUX
dss-287	601	29	sophisticated	sophisticated	ADJ
dss-287	601	30	optical	optical	ADJ
dss-287	601	31	instruments	instrument	NOUN
dss-287	601	32	that	that	PRON
dss-287	601	33	integrate	integrate	VERB
dss-287	601	34	both	both	DET
dss-287	601	35	refractive	refractive	ADJ
dss-287	601	36	elements	element	NOUN
dss-287	601	37	(	(	PUNCT
dss-287	601	38	lenses	lense	NOUN
dss-287	601	39	)	)	PUNCT
dss-287	601	40	and	and	CCONJ
dss-287	601	41	reflective	reflective	ADJ
dss-287	601	42	elements	element	NOUN
dss-287	601	43	(	(	PUNCT
dss-287	601	44	mirrors	mirror	NOUN
dss-287	601	45	)	)	PUNCT
dss-287	601	46	to	to	PART
dss-287	601	47	form	form	VERB
dss-287	601	48	an	an	DET
dss-287	601	49	image	image	NOUN
dss-287	601	50	.	.	PUNCT
dss-287	602	1	this	this	DET
dss-287	602	2	hybrid	hybrid	ADJ
dss-287	602	3	approach	approach	NOUN
dss-287	602	4	leverages	leverage	VERB
dss-287	602	5	the	the	DET
dss-287	602	6	strengths	strength	NOUN
dss-287	602	7	of	of	ADP
dss-287	602	8	both	both	CCONJ
dss-287	602	9	refraction	refraction	NOUN
dss-287	602	10	and	and	CCONJ
dss-287	602	11	reflection	reflection	NOUN
dss-287	602	12	,	,	PUNCT
dss-287	602	13	enabling	enable	VERB
dss-287	602	14	the	the	DET
dss-287	602	15	correction	correction	NOUN
dss-287	602	16	of	of	ADP
dss-287	602	17	various	various	ADJ
dss-287	602	18	optical	optical	ADJ
dss-287	602	19	aberrations	aberration	NOUN
dss-287	602	20	such	such	ADJ
dss-287	602	21	as	as	ADP
dss-287	602	22	spherical	spherical	ADJ
dss-287	602	23	aberration	aberration	NOUN
dss-287	602	24	,	,	PUNCT
dss-287	602	25	coma	coma	NOUN
dss-287	602	26	,	,	PUNCT
dss-287	602	27	and	and	CCONJ
dss-287	602	28	chromatic	chromatic	ADJ
dss-287	602	29	aberration	aberration	NOUN
dss-287	602	30	.	.	PUNCT
dss-287	603	1	the	the	DET
dss-287	603	2	result	result	NOUN
dss-287	603	3	is	be	AUX
dss-287	603	4	an	an	DET
dss-287	603	5	optical	optical	ADJ
dss-287	603	6	system	system	NOUN
dss-287	603	7	that	that	PRON
dss-287	603	8	delivers	deliver	VERB
dss-287	603	9	high	high	ADJ
dss-287	603	10	-	-	PUNCT
dss-287	603	11	quality	quality	NOUN
dss-287	603	12	images	image	NOUN
dss-287	603	13	across	across	ADP
dss-287	603	14	a	a	DET
dss-287	603	15	wide	wide	ADJ
dss-287	603	16	field	field	NOUN
dss-287	603	17	of	of	ADP
dss-287	603	18	view	view	NOUN
dss-287	603	19	.	.	PUNCT
dss-287	604	1	dss	dss	NOUN
dss-287	604	2	vol	vol	NOUN
dss-287	604	3	.	.	PROPN
dss-287	605	1	6	6	NUM
dss-287	605	2	,	,	PUNCT
dss-287	605	3	no	no	INTJ
dss-287	605	4	.	.	NOUN
dss-287	605	5	1	1	NUM
dss-287	605	6	,	,	PUNCT
dss-287	605	7	2025	2025	NUM
dss-287	605	8	,	,	PUNCT
dss-287	605	9	pp.49	pp.49	NOUN
dss-287	605	10	-	-	SYM
dss-287	605	11	90	90	NUM
dss-287	605	12	72	72	NUM
dss-287	605	13	the	the	DET
dss-287	605	14	significance	significance	NOUN
dss-287	605	15	of	of	ADP
dss-287	605	16	catadioptric	catadioptric	ADJ
dss-287	605	17	telescopes	telescope	NOUN
dss-287	605	18	lies	lie	VERB
dss-287	605	19	in	in	ADP
dss-287	605	20	their	their	PRON
dss-287	605	21	versatility	versatility	NOUN
dss-287	605	22	and	and	CCONJ
dss-287	605	23	performance	performance	NOUN
dss-287	605	24	.	.	PUNCT
dss-287	606	1	by	by	ADP
dss-287	606	2	folding	fold	VERB
dss-287	606	3	the	the	DET
dss-287	606	4	optical	optical	ADJ
dss-287	606	5	path	path	NOUN
dss-287	606	6	through	through	ADP
dss-287	606	7	the	the	DET
dss-287	606	8	use	use	NOUN
dss-287	606	9	of	of	ADP
dss-287	606	10	mirrors	mirror	NOUN
dss-287	606	11	,	,	PUNCT
dss-287	606	12	these	these	DET
dss-287	606	13	telescopes	telescope	NOUN
dss-287	606	14	achieve	achieve	VERB
dss-287	606	15	a	a	DET
dss-287	606	16	shorter	short	ADJ
dss-287	606	17	physical	physical	ADJ
dss-287	606	18	length	length	NOUN
dss-287	606	19	than	than	ADP
dss-287	606	20	refracting	refract	VERB
dss-287	606	21	telescopes	telescope	NOUN
dss-287	606	22	of	of	ADP
dss-287	606	23	equivalent	equivalent	ADJ
dss-287	606	24	aperture	aperture	NOUN
dss-287	606	25	,	,	PUNCT
dss-287	606	26	making	make	VERB
dss-287	606	27	them	they	PRON
dss-287	606	28	highly	highly	ADV
dss-287	606	29	portable	portable	ADJ
dss-287	606	30	a	a	DET
dss-287	606	31	critical	critical	ADJ
dss-287	606	32	advantage	advantage	NOUN
dss-287	606	33	for	for	ADP
dss-287	606	34	amateur	amateur	ADJ
dss-287	606	35	astronomers	astronomer	NOUN
dss-287	606	36	and	and	CCONJ
dss-287	606	37	field	field	NOUN
dss-287	606	38	observers	observer	NOUN
dss-287	606	39	.	.	PUNCT
dss-287	607	1	additionally	additionally	ADV
dss-287	607	2	,	,	PUNCT
dss-287	607	3	the	the	DET
dss-287	607	4	incorporation	incorporation	NOUN
dss-287	607	5	of	of	ADP
dss-287	607	6	corrector	corrector	NOUN
dss-287	607	7	lenses	lense	NOUN
dss-287	607	8	allows	allow	VERB
dss-287	607	9	for	for	ADP
dss-287	607	10	larger	large	ADJ
dss-287	607	11	apertures	aperture	NOUN
dss-287	607	12	within	within	ADP
dss-287	607	13	a	a	DET
dss-287	607	14	smaller	small	ADJ
dss-287	607	15	package	package	NOUN
dss-287	607	16	,	,	PUNCT
dss-287	607	17	enhancing	enhance	VERB
dss-287	607	18	light	light	ADJ
dss-287	607	19	-	-	PUNCT
dss-287	607	20	gathering	gather	VERB
dss-287	607	21	capability	capability	NOUN
dss-287	607	22	without	without	ADP
dss-287	607	23	significantly	significantly	ADV
dss-287	607	24	increasing	increase	VERB
dss-287	607	25	size	size	NOUN
dss-287	607	26	or	or	CCONJ
dss-287	607	27	weight	weight	NOUN
dss-287	607	28	.	.	PUNCT
dss-287	608	1	historically	historically	ADV
dss-287	608	2	,	,	PUNCT
dss-287	608	3	the	the	DET
dss-287	608	4	development	development	NOUN
dss-287	608	5	of	of	ADP
dss-287	608	6	catadioptric	catadioptric	ADJ
dss-287	608	7	telescopes	telescope	NOUN
dss-287	608	8	began	begin	VERB
dss-287	608	9	in	in	ADP
dss-287	608	10	the	the	DET
dss-287	608	11	early	early	ADJ
dss-287	608	12	20th	20th	ADJ
dss-287	608	13	century	century	NOUN
dss-287	608	14	.	.	PUNCT
dss-287	609	1	a	a	DET
dss-287	609	2	pivotal	pivotal	ADJ
dss-287	609	3	advancement	advancement	NOUN
dss-287	609	4	came	come	VERB
dss-287	609	5	in	in	ADP
dss-287	609	6	1930	1930	NUM
dss-287	609	7	with	with	ADP
dss-287	609	8	bernhard	bernhard	PROPN
dss-287	609	9	schmidt	schmidt	PROPN
dss-287	609	10	’s	’s	PART
dss-287	609	11	invention	invention	NOUN
dss-287	609	12	of	of	ADP
dss-287	609	13	the	the	DET
dss-287	609	14	schmidt	schmidt	PROPN
dss-287	609	15	camera	camera	NOUN
dss-287	609	16	,	,	PUNCT
dss-287	609	17	which	which	PRON
dss-287	609	18	utilized	utilize	VERB
dss-287	609	19	a	a	DET
dss-287	609	20	spherical	spherical	ADJ
dss-287	609	21	primary	primary	ADJ
dss-287	609	22	mirror	mirror	NOUN
dss-287	609	23	and	and	CCONJ
dss-287	609	24	an	an	DET
dss-287	609	25	aspheric	aspheric	ADJ
dss-287	609	26	corrector	corrector	NOUN
dss-287	609	27	plate	plate	NOUN
dss-287	609	28	to	to	PART
dss-287	609	29	achieve	achieve	VERB
dss-287	609	30	a	a	DET
dss-287	609	31	wide	wide	ADJ
dss-287	609	32	,	,	PUNCT
dss-287	609	33	aberration	aberration	NOUN
dss-287	609	34	-	-	PUNCT
dss-287	609	35	corrected	correct	VERB
dss-287	609	36	field	field	NOUN
dss-287	609	37	of	of	ADP
dss-287	609	38	view	view	NOUN
dss-287	609	39	.	.	PUNCT
dss-287	610	1	schmidt	schmidt	PROPN
dss-287	610	2	’s	’s	PART
dss-287	610	3	design	design	NOUN
dss-287	610	4	addressed	address	VERB
dss-287	610	5	spherical	spherical	ADJ
dss-287	610	6	aberration	aberration	NOUN
dss-287	610	7	effectively	effectively	ADV
dss-287	610	8	,	,	PUNCT
dss-287	610	9	though	though	SCONJ
dss-287	610	10	it	it	PRON
dss-287	610	11	required	require	VERB
dss-287	610	12	precise	precise	ADJ
dss-287	610	13	fabrication	fabrication	NOUN
dss-287	610	14	of	of	ADP
dss-287	610	15	the	the	DET
dss-287	610	16	corrector	corrector	NOUN
dss-287	610	17	plate	plate	NOUN
dss-287	610	18	[	[	X
dss-287	610	19	60	60	NUM
dss-287	610	20	]	]	PUNCT
dss-287	610	21	.	.	PUNCT
dss-287	611	1	building	build	VERB
dss-287	611	2	on	on	ADP
dss-287	611	3	this	this	DET
dss-287	611	4	foundation	foundation	NOUN
dss-287	611	5	,	,	PUNCT
dss-287	611	6	dimitry	dimitry	PROPN
dss-287	611	7	maksutov	maksutov	PROPN
dss-287	611	8	introduced	introduce	VERB
dss-287	611	9	the	the	DET
dss-287	611	10	maksutov	maksutov	NOUN
dss-287	611	11	telescope	telescope	NOUN
dss-287	611	12	in	in	ADP
dss-287	611	13	1941	1941	NUM
dss-287	611	14	[	[	X
dss-287	611	15	61	61	NUM
dss-287	611	16	]	]	PUNCT
dss-287	611	17	.	.	PUNCT
dss-287	612	1	his	his	PRON
dss-287	612	2	design	design	NOUN
dss-287	612	3	employed	employ	VERB
dss-287	612	4	a	a	DET
dss-287	612	5	thick	thick	ADJ
dss-287	612	6	meniscus	meniscus	NOUN
dss-287	612	7	corrector	corrector	NOUN
dss-287	612	8	lens	lens	NOUN
dss-287	612	9	to	to	PART
dss-287	612	10	correct	correct	VERB
dss-287	612	11	spherical	spherical	ADJ
dss-287	612	12	aberration	aberration	NOUN
dss-287	612	13	in	in	ADP
dss-287	612	14	a	a	DET
dss-287	612	15	spherical	spherical	ADJ
dss-287	612	16	mirror	mirror	NOUN
dss-287	612	17	system	system	NOUN
dss-287	612	18	.	.	PUNCT
dss-287	613	1	the	the	DET
dss-287	613	2	maksutov	maksutov	NOUN
dss-287	613	3	telescope	telescope	NOUN
dss-287	613	4	is	be	AUX
dss-287	613	5	renowned	renowne	VERB
dss-287	613	6	for	for	ADP
dss-287	613	7	its	its	PRON
dss-287	613	8	compact	compact	ADJ
dss-287	613	9	size	size	NOUN
dss-287	613	10	and	and	CCONJ
dss-287	613	11	exceptional	exceptional	ADJ
dss-287	613	12	image	image	NOUN
dss-287	613	13	quality	quality	NOUN
dss-287	613	14	,	,	PUNCT
dss-287	613	15	particularly	particularly	ADV
dss-287	613	16	suited	suit	VERB
dss-287	613	17	for	for	ADP
dss-287	613	18	high	high	ADJ
dss-287	613	19	-	-	PUNCT
dss-287	613	20	magnification	magnification	NOUN
dss-287	613	21	tasks	task	NOUN
dss-287	613	22	like	like	ADP
dss-287	613	23	planetary	planetary	ADJ
dss-287	613	24	observation	observation	NOUN
dss-287	613	25	.	.	PUNCT
dss-287	614	1	its	its	PRON
dss-287	614	2	simplicity	simplicity	NOUN
dss-287	614	3	and	and	CCONJ
dss-287	614	4	effectiveness	effectiveness	NOUN
dss-287	614	5	have	have	AUX
dss-287	614	6	made	make	VERB
dss-287	614	7	it	it	PRON
dss-287	614	8	a	a	DET
dss-287	614	9	staple	staple	NOUN
dss-287	614	10	in	in	ADP
dss-287	614	11	optical	optical	ADJ
dss-287	614	12	engineering	engineering	NOUN
dss-287	614	13	.	.	PUNCT
dss-287	615	1	the	the	DET
dss-287	615	2	schmidt	schmidt	VERB
dss-287	615	3	-	-	PUNCT
dss-287	615	4	cassegrain	cassegrain	NOUN
dss-287	615	5	telescope	telescope	NOUN
dss-287	615	6	(	(	PUNCT
dss-287	615	7	fig	fig	NOUN
dss-287	615	8	.	.	PUNCT
dss-287	615	9	11	11	NUM
dss-287	615	10	)	)	PUNCT
dss-287	615	11	presents	present	VERB
dss-287	615	12	a	a	DET
dss-287	615	13	fusion	fusion	NOUN
dss-287	615	14	of	of	ADP
dss-287	615	15	schmidt	schmidt	NOUN
dss-287	615	16	’s	’s	PART
dss-287	615	17	corrector	corrector	NOUN
dss-287	615	18	plate	plate	NOUN
dss-287	615	19	with	with	ADP
dss-287	615	20	the	the	DET
dss-287	615	21	cassegrain	cassegrain	NOUN
dss-287	615	22	reflector	reflector	NOUN
dss-287	615	23	system	system	NOUN
dss-287	615	24	,	,	PUNCT
dss-287	615	25	featuring	feature	VERB
dss-287	615	26	a	a	DET
dss-287	615	27	spherical	spherical	ADJ
dss-287	615	28	primary	primary	ADJ
dss-287	615	29	mirror	mirror	NOUN
dss-287	615	30	and	and	CCONJ
dss-287	615	31	a	a	DET
dss-287	615	32	convex	convex	ADJ
dss-287	615	33	secondary	secondary	ADJ
dss-287	615	34	mirror	mirror	NOUN
dss-287	615	35	.	.	PUNCT
dss-287	616	1	this	this	DET
dss-287	616	2	configuration	configuration	NOUN
dss-287	616	3	folds	fold	VERB
dss-287	616	4	the	the	DET
dss-287	616	5	optical	optical	ADJ
dss-287	616	6	path	path	NOUN
dss-287	616	7	,	,	PUNCT
dss-287	616	8	resulting	result	VERB
dss-287	616	9	in	in	ADP
dss-287	616	10	a	a	DET
dss-287	616	11	compact	compact	ADJ
dss-287	616	12	telescope	telescope	NOUN
dss-287	616	13	with	with	ADP
dss-287	616	14	a	a	DET
dss-287	616	15	long	long	ADJ
dss-287	616	16	focal	focal	ADJ
dss-287	616	17	length	length	NOUN
dss-287	616	18	.	.	PUNCT
dss-287	617	1	the	the	DET
dss-287	617	2	sct	sct	PROPN
dss-287	617	3	balances	balance	VERB
dss-287	617	4	field	field	NOUN
dss-287	617	5	of	of	ADP
dss-287	617	6	view	view	NOUN
dss-287	617	7	and	and	CCONJ
dss-287	617	8	image	image	NOUN
dss-287	617	9	quality	quality	NOUN
dss-287	617	10	,	,	PUNCT
dss-287	617	11	making	make	VERB
dss-287	617	12	it	it	PRON
dss-287	617	13	a	a	DET
dss-287	617	14	popular	popular	ADJ
dss-287	617	15	choice	choice	NOUN
dss-287	617	16	for	for	ADP
dss-287	617	17	visual	visual	ADJ
dss-287	617	18	observation	observation	NOUN
dss-287	617	19	and	and	CCONJ
dss-287	617	20	astrophotography	astrophotography	NOUN
dss-287	617	21	.	.	PUNCT
dss-287	618	1	similarly	similarly	ADV
dss-287	618	2	,	,	PUNCT
dss-287	618	3	the	the	DET
dss-287	618	4	maksutov	maksutov	NOUN
dss-287	618	5	-	-	PUNCT
dss-287	618	6	cassegrain	cassegrain	NOUN
dss-287	618	7	(	(	PUNCT
dss-287	618	8	fig	fig	NOUN
dss-287	618	9	.	.	PUNCT
dss-287	618	10	11	11	NUM
dss-287	618	11	)	)	PUNCT
dss-287	618	12	adapts	adapt	VERB
dss-287	618	13	the	the	DET
dss-287	618	14	maksutov	maksutov	NOUN
dss-287	618	15	corrector	corrector	NOUN
dss-287	618	16	lens	lens	NOUN
dss-287	618	17	to	to	ADP
dss-287	618	18	a	a	DET
dss-287	618	19	cassegrain	cassegrain	NOUN
dss-287	618	20	layout	layout	NOUN
dss-287	618	21	,	,	PUNCT
dss-287	618	22	offering	offer	VERB
dss-287	618	23	comparable	comparable	ADJ
dss-287	618	24	compactness	compactness	NOUN
dss-287	618	25	with	with	ADP
dss-287	618	26	slightly	slightly	ADV
dss-287	618	27	different	different	ADJ
dss-287	618	28	optical	optical	ADJ
dss-287	618	29	characteristics	characteristic	NOUN
dss-287	618	30	.	.	PUNCT
dss-287	619	1	its	its	PRON
dss-287	619	2	thicker	thick	ADJ
dss-287	619	3	corrector	corrector	NOUN
dss-287	619	4	lens	lens	NOUN
dss-287	619	5	provides	provide	VERB
dss-287	619	6	robust	robust	ADJ
dss-287	619	7	aberration	aberration	NOUN
dss-287	619	8	correction	correction	NOUN
dss-287	619	9	,	,	PUNCT
dss-287	619	10	often	often	ADV
dss-287	619	11	yielding	yield	VERB
dss-287	619	12	superior	superior	ADJ
dss-287	619	13	contrast	contrast	NOUN
dss-287	619	14	for	for	ADP
dss-287	619	15	specific	specific	ADJ
dss-287	619	16	applications	application	NOUN
dss-287	619	17	.	.	PUNCT
dss-287	620	1	fig	fig	NOUN
dss-287	620	2	.	.	PUNCT
dss-287	621	1	11	11	NUM
dss-287	621	2	schmidt	schmidt	NOUN
dss-287	621	3	-	-	PUNCT
dss-287	621	4	cassegrain	cassegrain	NOUN
dss-287	621	5	and	and	CCONJ
dss-287	621	6	maksutov	maksutov	NOUN
dss-287	621	7	-	-	PUNCT
dss-287	621	8	cassegrain	cassegrain	NOUN
dss-287	621	9	telescopes	telescope	NOUN
dss-287	621	10	[	[	X
dss-287	621	11	155	155	NUM
dss-287	621	12	]	]	PUNCT
dss-287	621	13	dss	dss	NOUN
dss-287	621	14	vol	vol	NOUN
dss-287	621	15	.	.	PROPN
dss-287	621	16	6	6	NUM
dss-287	621	17	,	,	PUNCT
dss-287	621	18	no	no	INTJ
dss-287	621	19	.	.	NOUN
dss-287	621	20	1	1	NUM
dss-287	621	21	,	,	PUNCT
dss-287	621	22	2025	2025	NUM
dss-287	621	23	,	,	PUNCT
dss-287	621	24	pp.49	pp.49	NOUN
dss-287	621	25	-	-	SYM
dss-287	621	26	90	90	NUM
dss-287	621	27	73	73	NUM
dss-287	621	28	these	these	DET
dss-287	621	29	instruments	instrument	NOUN
dss-287	621	30	have	have	AUX
dss-287	621	31	become	become	VERB
dss-287	621	32	indispensable	indispensable	ADJ
dss-287	621	33	in	in	ADP
dss-287	621	34	astronomy	astronomy	NOUN
dss-287	621	35	and	and	CCONJ
dss-287	621	36	beyond	beyond	ADV
dss-287	621	37	,	,	PUNCT
dss-287	621	38	offering	offer	VERB
dss-287	621	39	a	a	DET
dss-287	621	40	balance	balance	NOUN
dss-287	621	41	of	of	ADP
dss-287	621	42	optical	optical	ADJ
dss-287	621	43	excellence	excellence	NOUN
dss-287	621	44	and	and	CCONJ
dss-287	621	45	practicality	practicality	NOUN
dss-287	621	46	.	.	PUNCT
dss-287	622	1	despite	despite	SCONJ
dss-287	622	2	their	their	PRON
dss-287	622	3	advantages	advantage	NOUN
dss-287	622	4	,	,	PUNCT
dss-287	622	5	catadioptric	catadioptric	ADJ
dss-287	622	6	telescopes	telescope	NOUN
dss-287	622	7	are	be	AUX
dss-287	622	8	not	not	PART
dss-287	622	9	without	without	ADP
dss-287	622	10	challenges	challenge	NOUN
dss-287	622	11	.	.	PUNCT
dss-287	623	1	the	the	DET
dss-287	623	2	additional	additional	ADJ
dss-287	623	3	optical	optical	ADJ
dss-287	623	4	surfaces	surface	NOUN
dss-287	623	5	introduced	introduce	VERB
dss-287	623	6	by	by	ADP
dss-287	623	7	corrector	corrector	NOUN
dss-287	623	8	lenses	lense	NOUN
dss-287	623	9	can	can	AUX
dss-287	623	10	lead	lead	VERB
dss-287	623	11	to	to	ADP
dss-287	623	12	light	light	ADJ
dss-287	623	13	loss	loss	NOUN
dss-287	623	14	and	and	CCONJ
dss-287	623	15	internal	internal	ADJ
dss-287	623	16	reflections	reflection	NOUN
dss-287	623	17	if	if	SCONJ
dss-287	623	18	not	not	PART
dss-287	623	19	properly	properly	ADV
dss-287	623	20	managed	manage	VERB
dss-287	623	21	.	.	PUNCT
dss-287	624	1	moreover	moreover	ADV
dss-287	624	2	,	,	PUNCT
dss-287	624	3	the	the	DET
dss-287	624	4	manufacturing	manufacturing	NOUN
dss-287	624	5	of	of	ADP
dss-287	624	6	precisely	precisely	ADV
dss-287	624	7	corrector	corrector	NOUN
dss-287	624	8	elements	element	NOUN
dss-287	624	9	can	can	AUX
dss-287	624	10	be	be	AUX
dss-287	624	11	complex	complex	ADJ
dss-287	624	12	and	and	CCONJ
dss-287	624	13	costly	costly	ADJ
dss-287	624	14	.	.	PUNCT
dss-287	625	1	however	however	ADV
dss-287	625	2	,	,	PUNCT
dss-287	625	3	technological	technological	ADJ
dss-287	625	4	advancements	advancement	NOUN
dss-287	625	5	have	have	AUX
dss-287	625	6	largely	largely	ADV
dss-287	625	7	mitigated	mitigate	VERB
dss-287	625	8	these	these	DET
dss-287	625	9	drawbacks	drawback	NOUN
dss-287	625	10	,	,	PUNCT
dss-287	625	11	solidifying	solidify	VERB
dss-287	625	12	the	the	DET
dss-287	625	13	catadioptric	catadioptric	ADJ
dss-287	625	14	design	design	NOUN
dss-287	625	15	’s	’s	PART
dss-287	625	16	place	place	NOUN
dss-287	625	17	in	in	ADP
dss-287	625	18	modern	modern	ADJ
dss-287	625	19	optics	optic	NOUN
dss-287	625	20	.	.	PUNCT
dss-287	626	1	recent	recent	ADJ
dss-287	626	2	literature	literature	NOUN
dss-287	626	3	highlights	highlight	NOUN
dss-287	626	4	advancements	advancement	NOUN
dss-287	626	5	in	in	ADP
dss-287	626	6	catadioptric	catadioptric	ADJ
dss-287	626	7	design	design	NOUN
dss-287	626	8	.	.	PUNCT
dss-287	627	1	the	the	DET
dss-287	627	2	integration	integration	NOUN
dss-287	627	3	of	of	ADP
dss-287	627	4	computer	computer	NOUN
dss-287	627	5	-	-	PUNCT
dss-287	627	6	aided	aid	VERB
dss-287	627	7	design	design	NOUN
dss-287	627	8	(	(	PUNCT
dss-287	627	9	cad	cad	NOUN
dss-287	627	10	)	)	PUNCT
dss-287	627	11	and	and	CCONJ
dss-287	627	12	ray	ray	NOUN
dss-287	627	13	-	-	PUNCT
dss-287	627	14	tracing	trace	VERB
dss-287	627	15	software	software	NOUN
dss-287	627	16	has	have	AUX
dss-287	627	17	enabled	enable	VERB
dss-287	627	18	precise	precise	ADJ
dss-287	627	19	optimization	optimization	NOUN
dss-287	627	20	of	of	ADP
dss-287	627	21	optical	optical	ADJ
dss-287	627	22	elements	element	NOUN
dss-287	627	23	[	[	X
dss-287	627	24	62	62	NUM
dss-287	627	25	]	]	PUNCT
dss-287	627	26	.	.	PUNCT
dss-287	628	1	aspheric	aspheric	ADJ
dss-287	628	2	surfaces	surface	NOUN
dss-287	628	3	,	,	PUNCT
dss-287	628	4	once	once	ADV
dss-287	628	5	challenging	challenge	VERB
dss-287	628	6	to	to	PART
dss-287	628	7	produce	produce	VERB
dss-287	628	8	,	,	PUNCT
dss-287	628	9	are	be	AUX
dss-287	628	10	now	now	ADV
dss-287	628	11	more	more	ADV
dss-287	628	12	feasible	feasible	ADJ
dss-287	628	13	thanks	thank	NOUN
dss-287	628	14	to	to	ADP
dss-287	628	15	modern	modern	ADJ
dss-287	628	16	manufacturing	manufacturing	NOUN
dss-287	628	17	techniques	technique	NOUN
dss-287	628	18	[	[	X
dss-287	628	19	54	54	NUM
dss-287	628	20	]	]	PUNCT
dss-287	628	21	.	.	PUNCT
dss-287	629	1	additionally	additionally	ADV
dss-287	629	2	,	,	PUNCT
dss-287	629	3	innovations	innovation	NOUN
dss-287	629	4	in	in	ADP
dss-287	629	5	materials	material	NOUN
dss-287	629	6	,	,	PUNCT
dss-287	629	7	such	such	ADJ
dss-287	629	8	as	as	ADP
dss-287	629	9	advanced	advanced	ADJ
dss-287	629	10	coatings	coating	NOUN
dss-287	629	11	and	and	CCONJ
dss-287	629	12	lightweight	lightweight	ADJ
dss-287	629	13	composites	composite	NOUN
dss-287	629	14	,	,	PUNCT
dss-287	629	15	have	have	AUX
dss-287	629	16	improved	improve	VERB
dss-287	629	17	performance	performance	NOUN
dss-287	629	18	and	and	CCONJ
dss-287	629	19	durability	durability	NOUN
dss-287	629	20	[	[	X
dss-287	629	21	5,6	5,6	NUM
dss-287	629	22	]	]	X
dss-287	629	23	.	.	PUNCT
dss-287	630	1	contemporary	contemporary	ADJ
dss-287	630	2	research	research	PROPN
dss-287	630	3	also	also	ADV
dss-287	630	4	explores	explore	VERB
dss-287	630	5	specialized	specialized	ADJ
dss-287	630	6	catadioptric	catadioptric	NOUN
dss-287	630	7	systems	system	NOUN
dss-287	630	8	for	for	ADP
dss-287	630	9	space	space	NOUN
dss-287	630	10	applications	application	NOUN
dss-287	630	11	.	.	PUNCT
dss-287	631	1	for	for	ADP
dss-287	631	2	example	example	NOUN
dss-287	631	3	,	,	PUNCT
dss-287	631	4	the	the	DET
dss-287	631	5	kepler	kepler	PROPN
dss-287	631	6	space	space	NOUN
dss-287	631	7	telescope	telescope	NOUN
dss-287	631	8	utilized	utilize	VERB
dss-287	631	9	a	a	DET
dss-287	631	10	schmidt	schmidt	NOUN
dss-287	631	11	-	-	PUNCT
dss-287	631	12	based	base	VERB
dss-287	631	13	design	design	NOUN
dss-287	631	14	to	to	PART
dss-287	631	15	survey	survey	VERB
dss-287	631	16	exoplanets	exoplanet	NOUN
dss-287	631	17	,	,	PUNCT
dss-287	631	18	demonstrating	demonstrate	VERB
dss-287	631	19	the	the	DET
dss-287	631	20	adaptability	adaptability	NOUN
dss-287	631	21	of	of	ADP
dss-287	631	22	catadioptric	catadioptric	ADJ
dss-287	631	23	principles	principle	NOUN
dss-287	631	24	to	to	ADP
dss-287	631	25	the	the	DET
dss-287	631	26	stringent	stringent	ADJ
dss-287	631	27	requirements	requirement	NOUN
dss-287	631	28	of	of	ADP
dss-287	631	29	space	space	NOUN
dss-287	631	30	missions	mission	NOUN
dss-287	631	31	[	[	X
dss-287	631	32	63	63	NUM
dss-287	631	33	]	]	PUNCT
dss-287	631	34	.	.	PUNCT
dss-287	632	1	6.1	6.1	NUM
dss-287	632	2	methods	method	NOUN
dss-287	632	3	of	of	ADP
dss-287	632	4	design	design	NOUN
dss-287	632	5	designing	design	VERB
dss-287	632	6	a	a	DET
dss-287	632	7	catadioptric	catadioptric	ADJ
dss-287	632	8	telescope	telescope	NOUN
dss-287	632	9	is	be	AUX
dss-287	632	10	a	a	DET
dss-287	632	11	meticulous	meticulous	ADJ
dss-287	632	12	process	process	NOUN
dss-287	632	13	that	that	PRON
dss-287	632	14	combines	combine	VERB
dss-287	632	15	optical	optical	ADJ
dss-287	632	16	theory	theory	NOUN
dss-287	632	17	,	,	PUNCT
dss-287	632	18	computational	computational	ADJ
dss-287	632	19	tools	tool	NOUN
dss-287	632	20	,	,	PUNCT
dss-287	632	21	and	and	CCONJ
dss-287	632	22	practical	practical	ADJ
dss-287	632	23	engineering	engineering	NOUN
dss-287	632	24	.	.	PUNCT
dss-287	633	1	the	the	DET
dss-287	633	2	main	main	ADJ
dss-287	633	3	goal	goal	NOUN
dss-287	633	4	is	be	AUX
dss-287	633	5	to	to	PART
dss-287	633	6	create	create	VERB
dss-287	633	7	a	a	DET
dss-287	633	8	system	system	NOUN
dss-287	633	9	that	that	PRON
dss-287	633	10	meets	meet	VERB
dss-287	633	11	specific	specific	ADJ
dss-287	633	12	performance	performance	NOUN
dss-287	633	13	criteria	criterion	NOUN
dss-287	633	14	,	,	PUNCT
dss-287	633	15	such	such	ADJ
dss-287	633	16	as	as	ADP
dss-287	633	17	aperture	aperture	ADJ
dss-287	633	18	size	size	NOUN
dss-287	633	19	,	,	PUNCT
dss-287	633	20	focal	focal	ADJ
dss-287	633	21	length	length	NOUN
dss-287	633	22	,	,	PUNCT
dss-287	633	23	and	and	CCONJ
dss-287	633	24	field	field	NOUN
dss-287	633	25	of	of	ADP
dss-287	633	26	view	view	NOUN
dss-287	633	27	,	,	PUNCT
dss-287	633	28	while	while	SCONJ
dss-287	633	29	minimizing	minimize	VERB
dss-287	633	30	main	main	ADJ
dss-287	633	31	aberrations	aberration	NOUN
dss-287	633	32	and	and	CCONJ
dss-287	633	33	ensuring	ensure	VERB
dss-287	633	34	manufacturability	manufacturability	NOUN
dss-287	633	35	.	.	PUNCT
dss-287	634	1	6.1.1	6.1.1	NUM
dss-287	634	2	design	design	NOUN
dss-287	634	3	process	process	NOUN
dss-287	634	4	overview	overview	VERB
dss-287	634	5	the	the	DET
dss-287	634	6	telescope	telescope	NOUN
dss-287	634	7	design	design	NOUN
dss-287	634	8	begins	begin	VERB
dss-287	634	9	with	with	ADP
dss-287	634	10	defining	define	VERB
dss-287	634	11	the	the	DET
dss-287	634	12	telescope	telescope	NOUN
dss-287	634	13	’s	’s	PART
dss-287	634	14	specifications	specification	NOUN
dss-287	634	15	based	base	VERB
dss-287	634	16	on	on	ADP
dss-287	634	17	its	its	PRON
dss-287	634	18	intended	intended	ADJ
dss-287	634	19	use	use	NOUN
dss-287	634	20	.	.	PUNCT
dss-287	635	1	for	for	ADP
dss-287	635	2	instance	instance	NOUN
dss-287	635	3	,	,	PUNCT
dss-287	635	4	an	an	DET
dss-287	635	5	astronomical	astronomical	ADJ
dss-287	635	6	telescope	telescope	NOUN
dss-287	635	7	might	might	AUX
dss-287	635	8	prioritize	prioritize	VERB
dss-287	635	9	a	a	DET
dss-287	635	10	larger	large	ADJ
dss-287	635	11	aperture	aperture	NOUN
dss-287	635	12	and	and	CCONJ
dss-287	635	13	longer	long	ADJ
dss-287	635	14	focal	focal	ADJ
dss-287	635	15	length	length	NOUN
dss-287	635	16	,	,	PUNCT
dss-287	635	17	while	while	SCONJ
dss-287	635	18	a	a	DET
dss-287	635	19	terrestrial	terrestrial	ADJ
dss-287	635	20	spotting	spot	VERB
dss-287	635	21	scope	scope	NOUN
dss-287	635	22	may	may	AUX
dss-287	635	23	emphasize	emphasize	VERB
dss-287	635	24	compactness	compactness	NOUN
dss-287	635	25	and	and	CCONJ
dss-287	635	26	a	a	DET
dss-287	635	27	wide	wide	ADJ
dss-287	635	28	field	field	NOUN
dss-287	635	29	of	of	ADP
dss-287	635	30	view	view	NOUN
dss-287	635	31	.	.	PUNCT
dss-287	636	1	once	once	SCONJ
dss-287	636	2	these	these	DET
dss-287	636	3	parameters	parameter	NOUN
dss-287	636	4	are	be	AUX
dss-287	636	5	set	set	VERB
dss-287	636	6	,	,	PUNCT
dss-287	636	7	an	an	DET
dss-287	636	8	appropriate	appropriate	ADJ
dss-287	636	9	catadioptric	catadioptric	NOUN
dss-287	636	10	configuration	configuration	NOUN
dss-287	636	11	is	be	AUX
dss-287	636	12	selected	select	VERB
dss-287	636	13	,	,	PUNCT
dss-287	636	14	such	such	ADJ
dss-287	636	15	as	as	ADP
dss-287	636	16	a	a	DET
dss-287	636	17	representative	representative	ADJ
dss-287	636	18	schmidt	schmidt	NOUN
dss-287	636	19	-	-	PUNCT
dss-287	636	20	cassegrain	cassegrain	NOUN
dss-287	636	21	or	or	CCONJ
dss-287	636	22	maksutov	maksutov	NOUN
dss-287	636	23	-	-	PUNCT
dss-287	636	24	cassegrain	cassegrain	NOUN
dss-287	636	25	(	(	PUNCT
dss-287	636	26	fig	fig	NOUN
dss-287	636	27	.	.	PUNCT
dss-287	637	1	11	11	NUM
dss-287	637	2	)	)	PUNCT
dss-287	637	3	.	.	PUNCT
dss-287	638	1	6.1.2	6.1.2	NUM
dss-287	638	2	schmidt	schmidt	ADJ
dss-287	638	3	-	-	PUNCT
dss-287	638	4	cassegrain	cassegrain	NOUN
dss-287	638	5	design	design	NOUN
dss-287	638	6	in	in	ADP
dss-287	638	7	the	the	DET
dss-287	638	8	schmidt	schmidt	ADJ
dss-287	638	9	-	-	PUNCT
dss-287	638	10	cassegrain	cassegrain	NOUN
dss-287	638	11	configuration	configuration	NOUN
dss-287	638	12	(	(	PUNCT
dss-287	638	13	fig	fig	NOUN
dss-287	638	14	.	.	PUNCT
dss-287	638	15	11	11	NUM
dss-287	638	16	)	)	PUNCT
dss-287	638	17	,	,	PUNCT
dss-287	638	18	the	the	DET
dss-287	638	19	primary	primary	ADJ
dss-287	638	20	mirror	mirror	NOUN
dss-287	638	21	is	be	AUX
dss-287	638	22	spherical	spherical	ADJ
dss-287	638	23	,	,	PUNCT
dss-287	638	24	simplifying	simplify	VERB
dss-287	638	25	production	production	NOUN
dss-287	638	26	compared	compare	VERB
dss-287	638	27	to	to	ADP
dss-287	638	28	parabolic	parabolic	ADJ
dss-287	638	29	mirrors	mirror	NOUN
dss-287	638	30	.	.	PUNCT
dss-287	639	1	a	a	DET
dss-287	639	2	schmidt	schmidt	ADJ
dss-287	639	3	corrector	corrector	NOUN
dss-287	639	4	plate	plate	NOUN
dss-287	639	5	,	,	PUNCT
dss-287	639	6	placed	place	VERB
dss-287	639	7	at	at	ADP
dss-287	639	8	the	the	DET
dss-287	639	9	telescope	telescope	NOUN
dss-287	639	10	’s	’s	PART
dss-287	639	11	entrance	entrance	NOUN
dss-287	639	12	,	,	PUNCT
dss-287	639	13	corrects	correct	NOUN
dss-287	639	14	for	for	ADP
dss-287	639	15	spherical	spherical	ADJ
dss-287	639	16	aberration	aberration	NOUN
dss-287	639	17	.	.	PUNCT
dss-287	640	1	this	this	DET
dss-287	640	2	plate	plate	NOUN
dss-287	640	3	has	have	VERB
dss-287	640	4	an	an	DET
dss-287	640	5	aspheric	aspheric	ADJ
dss-287	640	6	profile	profile	NOUN
dss-287	640	7	,	,	PUNCT
dss-287	640	8	carefully	carefully	ADV
dss-287	640	9	calculated	calculate	VERB
dss-287	640	10	to	to	PART
dss-287	640	11	adjust	adjust	VERB
dss-287	640	12	the	the	DET
dss-287	640	13	paths	path	NOUN
dss-287	640	14	of	of	ADP
dss-287	640	15	incoming	incoming	ADJ
dss-287	640	16	light	light	ADJ
dss-287	640	17	rays	ray	NOUN
dss-287	640	18	so	so	SCONJ
dss-287	640	19	they	they	PRON
dss-287	640	20	converge	converge	VERB
dss-287	640	21	accurately	accurately	ADV
dss-287	640	22	at	at	ADP
dss-287	640	23	the	the	DET
dss-287	640	24	focal	focal	ADJ
dss-287	640	25	plane	plane	NOUN
dss-287	640	26	.	.	PUNCT
dss-287	641	1	the	the	DET
dss-287	641	2	secondary	secondary	ADJ
dss-287	641	3	mirror	mirror	NOUN
dss-287	641	4	,	,	PUNCT
dss-287	641	5	typically	typically	ADV
dss-287	641	6	convex	convex	VERB
dss-287	641	7	,	,	PUNCT
dss-287	641	8	reflects	reflect	VERB
dss-287	641	9	light	light	NOUN
dss-287	641	10	through	through	ADP
dss-287	641	11	a	a	DET
dss-287	641	12	central	central	ADJ
dss-287	641	13	hole	hole	NOUN
dss-287	641	14	in	in	ADP
dss-287	641	15	the	the	DET
dss-287	641	16	primary	primary	ADJ
dss-287	641	17	mirror	mirror	NOUN
dss-287	641	18	to	to	ADP
dss-287	641	19	the	the	DET
dss-287	641	20	eyepiece	eyepiece	NOUN
dss-287	641	21	or	or	CCONJ
dss-287	641	22	detector	detector	NOUN
dss-287	641	23	,	,	PUNCT
dss-287	641	24	folding	fold	VERB
dss-287	641	25	the	the	DET
dss-287	641	26	optical	optical	ADJ
dss-287	641	27	path	path	NOUN
dss-287	641	28	and	and	CCONJ
dss-287	641	29	reducing	reduce	VERB
dss-287	641	30	the	the	DET
dss-287	641	31	telescope	telescope	NOUN
dss-287	641	32	’s	’s	PART
dss-287	641	33	length	length	NOUN
dss-287	642	1	[	[	X
dss-287	642	2	3	3	NUM
dss-287	642	3	]	]	PUNCT
dss-287	642	4	.	.	PUNCT
dss-287	643	1	6.1.3	6.1.3	NUM
dss-287	643	2	maksutov	maksutov	NOUN
dss-287	643	3	-	-	PUNCT
dss-287	643	4	cassegrain	cassegrain	NOUN
dss-287	643	5	design	design	NOUN
dss-287	643	6	the	the	DET
dss-287	643	7	maksutov	maksutov	NOUN
dss-287	643	8	-	-	PUNCT
dss-287	643	9	cassegrain	cassegrain	NOUN
dss-287	643	10	(	(	PUNCT
dss-287	643	11	fig	fig	NOUN
dss-287	643	12	.	.	PUNCT
dss-287	643	13	11	11	NUM
dss-287	643	14	)	)	PUNCT
dss-287	643	15	employs	employ	VERB
dss-287	643	16	a	a	DET
dss-287	643	17	meniscus	meniscus	NOUN
dss-287	643	18	corrector	corrector	NOUN
dss-287	643	19	lens	len	NOUN
dss-287	643	20	instead	instead	ADV
dss-287	643	21	of	of	ADP
dss-287	643	22	a	a	DET
dss-287	643	23	plate	plate	NOUN
dss-287	643	24	.	.	PUNCT
dss-287	644	1	this	this	DET
dss-287	644	2	thick	thick	ADJ
dss-287	644	3	,	,	PUNCT
dss-287	644	4	curved	curved	ADJ
dss-287	644	5	lens	lens	NOUN
dss-287	644	6	corrects	correct	VERB
dss-287	644	7	spherical	spherical	ADJ
dss-287	644	8	aberration	aberration	NOUN
dss-287	644	9	while	while	SCONJ
dss-287	644	10	maintaining	maintain	VERB
dss-287	644	11	a	a	DET
dss-287	644	12	compact	compact	ADJ
dss-287	644	13	design	design	NOUN
dss-287	644	14	.	.	PUNCT
dss-287	645	1	the	the	DET
dss-287	645	2	secondary	secondary	ADJ
dss-287	645	3	mirror	mirror	NOUN
dss-287	645	4	in	in	ADP
dss-287	645	5	a	a	DET
dss-287	645	6	maksutovcassegrain	maksutovcassegrain	NOUN
dss-287	645	7	can	can	AUX
dss-287	645	8	be	be	AUX
dss-287	645	9	implemented	implement	VERB
dss-287	645	10	in	in	ADP
dss-287	645	11	two	two	NUM
dss-287	645	12	ways	way	NOUN
dss-287	645	13	:	:	PUNCT
dss-287	645	14	it	it	PRON
dss-287	645	15	can	can	AUX
dss-287	645	16	be	be	AUX
dss-287	645	17	a	a	DET
dss-287	645	18	separate	separate	ADJ
dss-287	645	19	,	,	PUNCT
dss-287	645	20	precisely	precisely	ADV
dss-287	645	21	figured	figured	ADJ
dss-287	645	22	optical	optical	ADJ
dss-287	645	23	element	element	NOUN
dss-287	645	24	mounted	mount	VERB
dss-287	645	25	within	within	ADP
dss-287	645	26	the	the	DET
dss-287	645	27	telescope	telescope	NOUN
dss-287	645	28	tube	tube	NOUN
dss-287	645	29	,	,	PUNCT
dss-287	645	30	or	or	CCONJ
dss-287	645	31	it	it	PRON
dss-287	645	32	can	can	AUX
dss-287	645	33	be	be	AUX
dss-287	645	34	an	an	DET
dss-287	645	35	aluminized	aluminized	ADJ
dss-287	645	36	spot	spot	NOUN
dss-287	645	37	directly	directly	ADV
dss-287	645	38	applied	apply	VERB
dss-287	645	39	to	to	ADP
dss-287	645	40	the	the	DET
dss-287	645	41	central	central	ADJ
dss-287	645	42	area	area	NOUN
dss-287	645	43	of	of	ADP
dss-287	645	44	the	the	DET
dss-287	645	45	rear	rear	ADJ
dss-287	645	46	surface	surface	NOUN
dss-287	645	47	of	of	ADP
dss-287	645	48	the	the	DET
dss-287	645	49	meniscus	meniscus	NOUN
dss-287	645	50	corrector	corrector	NOUN
dss-287	645	51	lens	lens	NOUN
dss-287	645	52	itself	itself	PRON
dss-287	645	53	.	.	PUNCT
dss-287	646	1	this	this	DET
dss-287	646	2	integrated	integrate	VERB
dss-287	646	3	secondary	secondary	ADJ
dss-287	646	4	mirror	mirror	NOUN
dss-287	646	5	offers	offer	VERB
dss-287	646	6	the	the	DET
dss-287	646	7	significant	significant	ADJ
dss-287	646	8	advantages	advantage	NOUN
dss-287	646	9	of	of	ADP
dss-287	646	10	simplifying	simplify	VERB
dss-287	646	11	the	the	DET
dss-287	646	12	alignment	alignment	NOUN
dss-287	646	13	process	process	NOUN
dss-287	646	14	[	[	X
dss-287	646	15	61	61	NUM
dss-287	646	16	]	]	PUNCT
dss-287	646	17	.	.	PUNCT
dss-287	647	1	6.2	6.2	NUM
dss-287	647	2	practical	practical	ADJ
dss-287	647	3	considerations	consideration	NOUN
dss-287	647	4	beyond	beyond	ADP
dss-287	647	5	optics	optic	NOUN
dss-287	647	6	,	,	PUNCT
dss-287	647	7	the	the	DET
dss-287	647	8	design	design	NOUN
dss-287	647	9	must	must	AUX
dss-287	647	10	address	address	VERB
dss-287	647	11	mechanical	mechanical	ADJ
dss-287	647	12	stability	stability	NOUN
dss-287	647	13	,	,	PUNCT
dss-287	647	14	alignment	alignment	NOUN
dss-287	647	15	ease	ease	NOUN
dss-287	647	16	,	,	PUNCT
dss-287	647	17	and	and	CCONJ
dss-287	647	18	manufacturing	manufacture	VERB
dss-287	647	19	feasibility	feasibility	NOUN
dss-287	647	20	.	.	PUNCT
dss-287	648	1	the	the	DET
dss-287	648	2	corrector	corrector	NOUN
dss-287	648	3	plate	plate	NOUN
dss-287	648	4	or	or	CCONJ
dss-287	648	5	lens	lens	NOUN
dss-287	648	6	requires	require	VERB
dss-287	648	7	precise	precise	ADJ
dss-287	648	8	grinding	grind	VERB
dss-287	648	9	and	and	CCONJ
dss-287	648	10	polishing	polish	VERB
dss-287	648	11	to	to	PART
dss-287	648	12	achieve	achieve	VERB
dss-287	648	13	its	its	PRON
dss-287	648	14	aspheric	aspheric	ADJ
dss-287	648	15	shape	shape	NOUN
dss-287	648	16	,	,	PUNCT
dss-287	648	17	a	a	DET
dss-287	648	18	process	process	NOUN
dss-287	648	19	that	that	PRON
dss-287	648	20	has	have	AUX
dss-287	648	21	been	be	AUX
dss-287	648	22	refined	refine	VERB
dss-287	648	23	with	with	ADP
dss-287	648	24	modern	modern	ADJ
dss-287	648	25	cnc	cnc	ADJ
dss-287	648	26	machinery	machinery	NOUN
dss-287	648	27	[	[	X
dss-287	648	28	54	54	NUM
dss-287	648	29	]	]	PUNCT
dss-287	648	30	.	.	PUNCT
dss-287	649	1	baffling	baffle	VERB
dss-287	649	2	is	be	AUX
dss-287	649	3	also	also	ADV
dss-287	649	4	critical	critical	ADJ
dss-287	649	5	to	to	PART
dss-287	649	6	control	control	VERB
dss-287	649	7	stray	stray	ADJ
dss-287	649	8	light	light	NOUN
dss-287	649	9	,	,	PUNCT
dss-287	649	10	as	as	SCONJ
dss-287	649	11	the	the	DET
dss-287	649	12	folded	fold	VERB
dss-287	649	13	optical	optical	ADJ
dss-287	649	14	path	path	NOUN
dss-287	649	15	can	can	AUX
dss-287	649	16	introduce	introduce	VERB
dss-287	649	17	unwanted	unwanted	ADJ
dss-287	649	18	reflections	reflection	NOUN
dss-287	649	19	if	if	SCONJ
dss-287	649	20	not	not	PART
dss-287	649	21	properly	properly	ADV
dss-287	649	22	shielded	shield	VERB
dss-287	649	23	.	.	PUNCT
dss-287	650	1	dss	dss	NOUN
dss-287	650	2	vol	vol	NOUN
dss-287	650	3	.	.	PROPN
dss-287	651	1	6	6	NUM
dss-287	651	2	,	,	PUNCT
dss-287	651	3	no	no	INTJ
dss-287	651	4	.	.	NOUN
dss-287	651	5	1	1	NUM
dss-287	651	6	,	,	PUNCT
dss-287	651	7	2025	2025	NUM
dss-287	651	8	,	,	PUNCT
dss-287	651	9	pp.49	pp.49	NOUN
dss-287	651	10	-	-	SYM
dss-287	651	11	90	90	NUM
dss-287	651	12	74	74	NUM
dss-287	651	13	6.3	6.3	NUM
dss-287	651	14	testing	testing	NOUN
dss-287	651	15	and	and	CCONJ
dss-287	651	16	alignment	alignment	NOUN
dss-287	651	17	once	once	ADV
dss-287	651	18	constructed	construct	VERB
dss-287	651	19	,	,	PUNCT
dss-287	651	20	the	the	DET
dss-287	651	21	telescope	telescope	NOUN
dss-287	651	22	undergoes	undergo	VERB
dss-287	651	23	rigorous	rigorous	ADJ
dss-287	651	24	testing	testing	NOUN
dss-287	651	25	often	often	ADV
dss-287	651	26	using	use	VERB
dss-287	651	27	interferometry	interferometry	NOUN
dss-287	651	28	or	or	CCONJ
dss-287	651	29	star	star	NOUN
dss-287	651	30	tests	test	NOUN
dss-287	651	31	to	to	PART
dss-287	651	32	verify	verify	VERB
dss-287	651	33	performance	performance	NOUN
dss-287	651	34	.	.	PUNCT
dss-287	652	1	the	the	DET
dss-287	652	2	alignment	alignment	NOUN
dss-287	652	3	of	of	ADP
dss-287	652	4	optical	optical	ADJ
dss-287	652	5	elements	element	NOUN
dss-287	652	6	is	be	AUX
dss-287	652	7	adjusted	adjust	VERB
dss-287	652	8	to	to	PART
dss-287	652	9	minimize	minimize	VERB
dss-287	652	10	residual	residual	ADJ
dss-287	652	11	aberrations	aberration	NOUN
dss-287	652	12	,	,	PUNCT
dss-287	652	13	ensuring	ensure	VERB
dss-287	652	14	the	the	DET
dss-287	652	15	system	system	NOUN
dss-287	652	16	meets	meet	VERB
dss-287	652	17	its	its	PRON
dss-287	652	18	design	design	NOUN
dss-287	652	19	goals	goal	NOUN
dss-287	652	20	.	.	PUNCT
dss-287	653	1	6.4	6.4	NUM
dss-287	653	2	applications	application	NOUN
dss-287	653	3	catadioptric	catadioptric	NOUN
dss-287	653	4	telescopes	telescope	NOUN
dss-287	653	5	serve	serve	VERB
dss-287	653	6	a	a	DET
dss-287	653	7	diverse	diverse	ADJ
dss-287	653	8	array	array	NOUN
dss-287	653	9	of	of	ADP
dss-287	653	10	purposes	purpose	NOUN
dss-287	653	11	,	,	PUNCT
dss-287	653	12	capitalizing	capitalize	VERB
dss-287	653	13	on	on	ADP
dss-287	653	14	their	their	PRON
dss-287	653	15	compact	compact	ADJ
dss-287	653	16	size	size	NOUN
dss-287	653	17	,	,	PUNCT
dss-287	653	18	large	large	ADJ
dss-287	653	19	apertures	aperture	NOUN
dss-287	653	20	,	,	PUNCT
dss-287	653	21	and	and	CCONJ
dss-287	653	22	optical	optical	ADJ
dss-287	653	23	versatility	versatility	NOUN
dss-287	653	24	.	.	PUNCT
dss-287	654	1	in	in	ADP
dss-287	654	2	astronomy	astronomy	NOUN
dss-287	654	3	,	,	PUNCT
dss-287	654	4	catadioptric	catadioptric	NOUN
dss-287	654	5	designs	design	NOUN
dss-287	654	6	dominate	dominate	VERB
dss-287	654	7	the	the	DET
dss-287	654	8	amateur	amateur	ADJ
dss-287	654	9	market	market	NOUN
dss-287	654	10	.	.	PUNCT
dss-287	655	1	telescopes	telescope	NOUN
dss-287	655	2	like	like	ADP
dss-287	655	3	the	the	DET
dss-287	655	4	celestron	celestron	PROPN
dss-287	655	5	’s	’s	PART
dss-287	655	6	schmidtcassegrain	schmidtcassegrain	NOUN
dss-287	655	7	series	series	NOUN
dss-287	655	8	are	be	AUX
dss-287	655	9	prized	prize	VERB
dss-287	655	10	for	for	ADP
dss-287	655	11	their	their	PRON
dss-287	655	12	portability	portability	NOUN
dss-287	655	13	and	and	CCONJ
dss-287	655	14	ability	ability	NOUN
dss-287	655	15	to	to	PART
dss-287	655	16	observe	observe	VERB
dss-287	655	17	a	a	DET
dss-287	655	18	range	range	NOUN
dss-287	655	19	of	of	ADP
dss-287	655	20	celestial	celestial	ADJ
dss-287	655	21	targets	target	NOUN
dss-287	655	22	,	,	PUNCT
dss-287	655	23	from	from	ADP
dss-287	655	24	planets	planet	NOUN
dss-287	655	25	to	to	ADP
dss-287	655	26	galaxies	galaxy	NOUN
dss-287	655	27	.	.	PUNCT
dss-287	656	1	their	their	PRON
dss-287	656	2	folded	fold	VERB
dss-287	656	3	design	design	NOUN
dss-287	656	4	allows	allow	VERB
dss-287	656	5	for	for	ADP
dss-287	656	6	large	large	ADJ
dss-287	656	7	apertures	aperture	NOUN
dss-287	656	8	(	(	PUNCT
dss-287	656	9	e.g.	e.g.	ADV
dss-287	656	10	,	,	PUNCT
dss-287	656	11	8	8	NUM
dss-287	656	12	-	-	SYM
dss-287	656	13	14	14	NUM
dss-287	656	14	inches	inch	NOUN
dss-287	656	15	)	)	PUNCT
dss-287	656	16	in	in	ADP
dss-287	656	17	a	a	DET
dss-287	656	18	manageable	manageable	ADJ
dss-287	656	19	size	size	NOUN
dss-287	656	20	,	,	PUNCT
dss-287	656	21	ideal	ideal	NOUN
dss-287	656	22	for	for	ADP
dss-287	656	23	transport	transport	NOUN
dss-287	656	24	to	to	ADP
dss-287	656	25	dark	dark	ADJ
dss-287	656	26	-	-	PUNCT
dss-287	656	27	sky	sky	NOUN
dss-287	656	28	sites	site	NOUN
dss-287	656	29	.	.	PUNCT
dss-287	657	1	professionally	professionally	ADV
dss-287	657	2	,	,	PUNCT
dss-287	657	3	schmidt	schmidt	ADJ
dss-287	657	4	telescopes	telescope	NOUN
dss-287	657	5	have	have	AUX
dss-287	657	6	been	be	AUX
dss-287	657	7	instrumental	instrumental	ADJ
dss-287	657	8	in	in	ADP
dss-287	657	9	wide	wide	ADJ
dss-287	657	10	-	-	PUNCT
dss-287	657	11	field	field	NOUN
dss-287	657	12	surveys	survey	NOUN
dss-287	657	13	,	,	PUNCT
dss-287	657	14	such	such	ADJ
dss-287	657	15	as	as	ADP
dss-287	657	16	the	the	DET
dss-287	657	17	palomar	palomar	PROPN
dss-287	657	18	observatory	observatory	ADJ
dss-287	657	19	sky	sky	NOUN
dss-287	657	20	survey	survey	NOUN
dss-287	657	21	,	,	PUNCT
dss-287	657	22	mapping	map	VERB
dss-287	657	23	vast	vast	ADJ
dss-287	657	24	regions	region	NOUN
dss-287	657	25	of	of	ADP
dss-287	657	26	the	the	DET
dss-287	657	27	sky	sky	NOUN
dss-287	657	28	with	with	ADP
dss-287	657	29	high	high	ADJ
dss-287	657	30	fidelity	fidelity	NOUN
dss-287	657	31	[	[	X
dss-287	657	32	5,6	5,6	NUM
dss-287	657	33	]	]	X
dss-287	657	34	.	.	PUNCT
dss-287	658	1	the	the	DET
dss-287	658	2	kepler	kepler	PROPN
dss-287	658	3	space	space	NOUN
dss-287	658	4	telescope	telescope	NOUN
dss-287	658	5	stands	stand	VERB
dss-287	658	6	as	as	ADP
dss-287	658	7	a	a	DET
dss-287	658	8	prominent	prominent	ADJ
dss-287	658	9	example	example	NOUN
dss-287	658	10	of	of	ADP
dss-287	658	11	the	the	DET
dss-287	658	12	successful	successful	ADJ
dss-287	658	13	application	application	NOUN
dss-287	658	14	of	of	ADP
dss-287	658	15	catadioptric	catadioptric	ADJ
dss-287	658	16	optical	optical	ADJ
dss-287	658	17	design	design	NOUN
dss-287	658	18	in	in	ADP
dss-287	658	19	space	space	NOUN
dss-287	658	20	-	-	PUNCT
dss-287	658	21	based	base	VERB
dss-287	658	22	astronomy	astronomy	NOUN
dss-287	658	23	.	.	PUNCT
dss-287	659	1	launched	launch	VERB
dss-287	659	2	by	by	ADP
dss-287	659	3	nasa	nasa	PROPN
dss-287	659	4	in	in	ADP
dss-287	659	5	2009	2009	NUM
dss-287	659	6	,	,	PUNCT
dss-287	659	7	kepler	kepler	PROPN
dss-287	659	8	employed	employ	VERB
dss-287	659	9	a	a	DET
dss-287	659	10	modified	modify	VERB
dss-287	659	11	schmidt	schmidt	NOUN
dss-287	659	12	telescope	telescope	NOUN
dss-287	659	13	configuration	configuration	NOUN
dss-287	659	14	.	.	PUNCT
dss-287	660	1	this	this	DET
dss-287	660	2	design	design	NOUN
dss-287	660	3	provided	provide	VERB
dss-287	660	4	a	a	DET
dss-287	660	5	wide	wide	ADJ
dss-287	660	6	,	,	PUNCT
dss-287	660	7	flat	flat	ADJ
dss-287	660	8	field	field	NOUN
dss-287	660	9	of	of	ADP
dss-287	660	10	view	view	NOUN
dss-287	660	11	with	with	ADP
dss-287	660	12	minimal	minimal	ADJ
dss-287	660	13	optical	optical	ADJ
dss-287	660	14	distortion	distortion	NOUN
dss-287	660	15	,	,	PUNCT
dss-287	660	16	making	make	VERB
dss-287	660	17	it	it	PRON
dss-287	660	18	ideal	ideal	ADJ
dss-287	660	19	for	for	ADP
dss-287	660	20	photometric	photometric	ADJ
dss-287	660	21	observations	observation	NOUN
dss-287	660	22	.	.	PUNCT
dss-287	661	1	kepler	kepler	PROPN
dss-287	661	2	’s	’s	PART
dss-287	661	3	mission	mission	NOUN
dss-287	661	4	was	be	AUX
dss-287	661	5	to	to	PART
dss-287	661	6	detect	detect	VERB
dss-287	661	7	exoplanets	exoplanet	NOUN
dss-287	661	8	by	by	ADP
dss-287	661	9	continuously	continuously	ADV
dss-287	661	10	monitoring	monitor	VERB
dss-287	661	11	the	the	DET
dss-287	661	12	brightness	brightness	NOUN
dss-287	661	13	of	of	ADP
dss-287	661	14	over	over	ADP
dss-287	661	15	150,000	150,000	NUM
dss-287	661	16	stars	star	NOUN
dss-287	661	17	within	within	ADP
dss-287	661	18	a	a	DET
dss-287	661	19	fixed	fix	VERB
dss-287	661	20	field	field	NOUN
dss-287	661	21	of	of	ADP
dss-287	661	22	the	the	DET
dss-287	661	23	milky	milky	ADJ
dss-287	661	24	way	way	NOUN
dss-287	661	25	.	.	PUNCT
dss-287	662	1	its	its	PRON
dss-287	662	2	optical	optical	ADJ
dss-287	662	3	system	system	NOUN
dss-287	662	4	was	be	AUX
dss-287	662	5	specifically	specifically	ADV
dss-287	662	6	optimized	optimize	VERB
dss-287	662	7	to	to	PART
dss-287	662	8	measure	measure	VERB
dss-287	662	9	minute	minute	ADJ
dss-287	662	10	changes	change	NOUN
dss-287	662	11	in	in	ADP
dss-287	662	12	stellar	stellar	ADJ
dss-287	662	13	brightness	brightness	NOUN
dss-287	662	14	caused	cause	VERB
dss-287	662	15	by	by	ADP
dss-287	662	16	the	the	DET
dss-287	662	17	transit	transit	NOUN
dss-287	662	18	method	method	NOUN
dss-287	662	19	a	a	DET
dss-287	662	20	planet	planet	NOUN
dss-287	662	21	passing	pass	VERB
dss-287	662	22	in	in	ADP
dss-287	662	23	front	front	NOUN
dss-287	662	24	of	of	ADP
dss-287	662	25	its	its	PRON
dss-287	662	26	host	host	NOUN
dss-287	662	27	star	star	NOUN
dss-287	662	28	,	,	PUNCT
dss-287	662	29	causing	cause	VERB
dss-287	662	30	a	a	DET
dss-287	662	31	slight	slight	ADJ
dss-287	662	32	and	and	CCONJ
dss-287	662	33	periodic	periodic	ADJ
dss-287	662	34	dimming	dimming	NOUN
dss-287	662	35	.	.	PUNCT
dss-287	663	1	thanks	thank	NOUN
dss-287	663	2	to	to	ADP
dss-287	663	3	this	this	DET
dss-287	663	4	innovative	innovative	ADJ
dss-287	663	5	catadioptric	catadioptric	NOUN
dss-287	663	6	design	design	NOUN
dss-287	663	7	,	,	PUNCT
dss-287	663	8	kepler	kepler	PROPN
dss-287	663	9	revolutionized	revolutionize	VERB
dss-287	663	10	the	the	DET
dss-287	663	11	field	field	NOUN
dss-287	663	12	of	of	ADP
dss-287	663	13	exoplanetary	exoplanetary	NOUN
dss-287	663	14	science	science	NOUN
dss-287	663	15	,	,	PUNCT
dss-287	663	16	leading	lead	VERB
dss-287	663	17	to	to	ADP
dss-287	663	18	the	the	DET
dss-287	663	19	discovery	discovery	NOUN
dss-287	663	20	of	of	ADP
dss-287	663	21	thousands	thousand	NOUN
dss-287	663	22	of	of	ADP
dss-287	663	23	exoplanets	exoplanet	NOUN
dss-287	663	24	,	,	PUNCT
dss-287	663	25	many	many	ADJ
dss-287	663	26	of	of	ADP
dss-287	663	27	which	which	PRON
dss-287	663	28	are	be	AUX
dss-287	663	29	earth	earth	NOUN
dss-287	663	30	-	-	PUNCT
dss-287	663	31	sized	sized	ADJ
dss-287	663	32	and	and	CCONJ
dss-287	663	33	located	locate	VERB
dss-287	663	34	in	in	ADP
dss-287	663	35	the	the	DET
dss-287	663	36	habitable	habitable	ADJ
dss-287	663	37	zones	zone	NOUN
dss-287	663	38	of	of	ADP
dss-287	663	39	their	their	PRON
dss-287	663	40	stars	star	NOUN
dss-287	663	41	[	[	X
dss-287	663	42	63	63	NUM
dss-287	663	43	]	]	PUNCT
dss-287	663	44	.	.	PUNCT
dss-287	664	1	for	for	ADP
dss-287	664	2	terrestrial	terrestrial	ADJ
dss-287	664	3	use	use	NOUN
dss-287	664	4	,	,	PUNCT
dss-287	664	5	catadioptric	catadioptric	NOUN
dss-287	664	6	spotting	spot	VERB
dss-287	664	7	scopes	scope	NOUN
dss-287	664	8	provide	provide	VERB
dss-287	664	9	high	high	ADJ
dss-287	664	10	magnification	magnification	NOUN
dss-287	664	11	and	and	CCONJ
dss-287	664	12	clarity	clarity	NOUN
dss-287	664	13	in	in	ADP
dss-287	664	14	a	a	DET
dss-287	664	15	compact	compact	ADJ
dss-287	664	16	form	form	NOUN
dss-287	664	17	.	.	PUNCT
dss-287	665	1	birdwatchers	birdwatcher	NOUN
dss-287	665	2	and	and	CCONJ
dss-287	665	3	nature	nature	NOUN
dss-287	665	4	enthusiasts	enthusiast	NOUN
dss-287	665	5	benefit	benefit	VERB
dss-287	665	6	from	from	ADP
dss-287	665	7	their	their	PRON
dss-287	665	8	portability	portability	NOUN
dss-287	665	9	,	,	PUNCT
dss-287	665	10	while	while	SCONJ
dss-287	665	11	surveillance	surveillance	NOUN
dss-287	665	12	and	and	CCONJ
dss-287	665	13	military	military	ADJ
dss-287	665	14	applications	application	NOUN
dss-287	665	15	leverage	leverage	VERB
dss-287	665	16	their	their	PRON
dss-287	665	17	long	long	ADJ
dss-287	665	18	-	-	PUNCT
dss-287	665	19	range	range	NOUN
dss-287	665	20	capabilities	capability	NOUN
dss-287	665	21	.	.	PUNCT
dss-287	666	1	in	in	ADP
dss-287	666	2	scientific	scientific	ADJ
dss-287	666	3	contexts	contexts	NOUN
dss-287	666	4	,	,	PUNCT
dss-287	666	5	catadioptric	catadioptric	NOUN
dss-287	666	6	systems	system	NOUN
dss-287	666	7	appear	appear	VERB
dss-287	666	8	in	in	ADP
dss-287	666	9	specialized	specialized	ADJ
dss-287	666	10	equipment	equipment	NOUN
dss-287	666	11	.	.	PUNCT
dss-287	667	1	photolithography	photolithography	NOUN
dss-287	667	2	machines	machine	NOUN
dss-287	667	3	,	,	PUNCT
dss-287	667	4	used	use	VERB
dss-287	667	5	in	in	ADP
dss-287	667	6	semiconductor	semiconductor	NOUN
dss-287	667	7	manufacturing	manufacturing	NOUN
dss-287	667	8	,	,	PUNCT
dss-287	667	9	employ	employ	VERB
dss-287	667	10	catadioptric	catadioptric	NOUN
dss-287	667	11	projection	projection	NOUN
dss-287	667	12	optics	optic	NOUN
dss-287	667	13	to	to	PART
dss-287	667	14	image	image	VERB
dss-287	667	15	intricate	intricate	ADJ
dss-287	667	16	patterns	pattern	NOUN
dss-287	667	17	onto	onto	ADP
dss-287	667	18	wafers	wafer	NOUN
dss-287	667	19	with	with	ADP
dss-287	667	20	sub	sub	ADJ
dss-287	667	21	-	-	ADJ
dss-287	667	22	micron	micron	ADJ
dss-287	667	23	precision	precision	NOUN
dss-287	667	24	[	[	X
dss-287	667	25	62	62	NUM
dss-287	667	26	]	]	PUNCT
dss-287	667	27	.	.	PUNCT
dss-287	668	1	similarly	similarly	ADV
dss-287	668	2	,	,	PUNCT
dss-287	668	3	laser	laser	NOUN
dss-287	668	4	beam	beam	NOUN
dss-287	668	5	expanders	expander	NOUN
dss-287	668	6	and	and	CCONJ
dss-287	668	7	optical	optical	ADJ
dss-287	668	8	alignment	alignment	NOUN
dss-287	668	9	tools	tool	NOUN
dss-287	668	10	utilize	utilize	VERB
dss-287	668	11	catadioptric	catadioptric	ADJ
dss-287	668	12	principles	principle	NOUN
dss-287	668	13	for	for	ADP
dss-287	668	14	their	their	PRON
dss-287	668	15	aberration	aberration	NOUN
dss-287	668	16	-	-	PUNCT
dss-287	668	17	corrected	correct	VERB
dss-287	668	18	performance	performance	NOUN
dss-287	668	19	.	.	PUNCT
dss-287	669	1	with	with	ADP
dss-287	669	2	the	the	DET
dss-287	669	3	advent	advent	NOUN
dss-287	669	4	of	of	ADP
dss-287	669	5	digital	digital	ADJ
dss-287	669	6	imaging	imaging	NOUN
dss-287	669	7	,	,	PUNCT
dss-287	669	8	catadioptric	catadioptric	ADJ
dss-287	669	9	telescopes	telescope	NOUN
dss-287	669	10	paired	pair	VERB
dss-287	669	11	with	with	ADP
dss-287	669	12	ccd	ccd	NOUN
dss-287	669	13	cameras	camera	NOUN
dss-287	669	14	have	have	AUX
dss-287	669	15	become	become	VERB
dss-287	669	16	powerful	powerful	ADJ
dss-287	669	17	tools	tool	NOUN
dss-287	669	18	for	for	ADP
dss-287	669	19	astrophotography	astrophotography	NOUN
dss-287	669	20	.	.	PUNCT
dss-287	670	1	their	their	PRON
dss-287	670	2	design	design	NOUN
dss-287	670	3	supports	support	VERB
dss-287	670	4	the	the	DET
dss-287	670	5	high	high	ADJ
dss-287	670	6	resolution	resolution	NOUN
dss-287	670	7	and	and	CCONJ
dss-287	670	8	light	light	ADJ
dss-287	670	9	sensitivity	sensitivity	NOUN
dss-287	670	10	required	require	VERB
dss-287	670	11	for	for	ADP
dss-287	670	12	capturing	capture	VERB
dss-287	670	13	detailed	detailed	ADJ
dss-287	670	14	images	image	NOUN
dss-287	670	15	of	of	ADP
dss-287	670	16	celestial	celestial	ADJ
dss-287	670	17	objects	object	NOUN
dss-287	670	18	.	.	PUNCT
dss-287	671	1	looking	look	VERB
dss-287	671	2	forward	forward	ADV
dss-287	671	3	,	,	PUNCT
dss-287	671	4	catadioptric	catadioptric	ADJ
dss-287	671	5	telescopes	telescope	NOUN
dss-287	671	6	are	be	AUX
dss-287	671	7	poised	poise	VERB
dss-287	671	8	for	for	ADP
dss-287	671	9	further	further	ADJ
dss-287	671	10	advancement	advancement	NOUN
dss-287	671	11	.	.	PUNCT
dss-287	672	1	the	the	DET
dss-287	672	2	integration	integration	NOUN
dss-287	672	3	of	of	ADP
dss-287	672	4	adaptive	adaptive	ADJ
dss-287	672	5	optics	optic	NOUN
dss-287	672	6	could	could	AUX
dss-287	672	7	enhance	enhance	VERB
dss-287	672	8	their	their	PRON
dss-287	672	9	performance	performance	NOUN
dss-287	672	10	for	for	ADP
dss-287	672	11	ground	ground	NOUN
dss-287	672	12	-	-	PUNCT
dss-287	672	13	based	base	VERB
dss-287	672	14	astronomy	astronomy	NOUN
dss-287	672	15	by	by	ADP
dss-287	672	16	compensating	compensate	VERB
dss-287	672	17	for	for	ADP
dss-287	672	18	atmospheric	atmospheric	ADJ
dss-287	672	19	distortion	distortion	NOUN
dss-287	672	20	.	.	PUNCT
dss-287	673	1	innovations	innovation	NOUN
dss-287	673	2	in	in	ADP
dss-287	673	3	materials	material	NOUN
dss-287	673	4	,	,	PUNCT
dss-287	673	5	such	such	ADJ
dss-287	673	6	as	as	ADP
dss-287	673	7	lightweight	lightweight	ADJ
dss-287	673	8	carbon	carbon	NOUN
dss-287	673	9	fiber	fiber	NOUN
dss-287	673	10	tubes	tube	NOUN
dss-287	673	11	and	and	CCONJ
dss-287	673	12	advanced	advanced	ADJ
dss-287	673	13	coatings	coating	NOUN
dss-287	673	14	,	,	PUNCT
dss-287	673	15	promise	promise	VERB
dss-287	673	16	greater	great	ADJ
dss-287	673	17	portability	portability	NOUN
dss-287	673	18	and	and	CCONJ
dss-287	673	19	efficiency	efficiency	NOUN
dss-287	673	20	.	.	PUNCT
dss-287	674	1	additionally	additionally	ADV
dss-287	674	2	,	,	PUNCT
dss-287	674	3	as	as	SCONJ
dss-287	674	4	digital	digital	ADJ
dss-287	674	5	imaging	imaging	NOUN
dss-287	674	6	continues	continue	VERB
dss-287	674	7	to	to	PART
dss-287	674	8	evolve	evolve	VERB
dss-287	674	9	,	,	PUNCT
dss-287	674	10	catadioptric	catadioptric	ADJ
dss-287	674	11	designs	design	NOUN
dss-287	674	12	may	may	AUX
dss-287	674	13	be	be	AUX
dss-287	674	14	optimized	optimize	VERB
dss-287	674	15	further	far	ADV
dss-287	674	16	for	for	ADP
dss-287	674	17	astrophotography	astrophotography	NOUN
dss-287	674	18	and	and	CCONJ
dss-287	674	19	automated	automate	VERB
dss-287	674	20	sky	sky	NOUN
dss-287	674	21	surveys	survey	NOUN
dss-287	674	22	.	.	PUNCT
dss-287	675	1	catadioptric	catadioptric	ADJ
dss-287	675	2	telescopes	telescope	NOUN
dss-287	675	3	represent	represent	VERB
dss-287	675	4	a	a	DET
dss-287	675	5	mature	mature	ADJ
dss-287	675	6	yet	yet	CCONJ
dss-287	675	7	dynamic	dynamic	ADJ
dss-287	675	8	field	field	NOUN
dss-287	675	9	,	,	PUNCT
dss-287	675	10	with	with	ADP
dss-287	675	11	a	a	DET
dss-287	675	12	rich	rich	ADJ
dss-287	675	13	history	history	NOUN
dss-287	675	14	and	and	CCONJ
dss-287	675	15	a	a	DET
dss-287	675	16	promising	promising	ADJ
dss-287	675	17	future	future	NOUN
dss-287	675	18	,	,	PUNCT
dss-287	675	19	continuing	continue	VERB
dss-287	675	20	to	to	PART
dss-287	675	21	push	push	VERB
dss-287	675	22	the	the	DET
dss-287	675	23	boundaries	boundary	NOUN
dss-287	675	24	of	of	ADP
dss-287	675	25	optical	optical	ADJ
dss-287	675	26	engineering	engineering	NOUN
dss-287	675	27	.	.	PUNCT
dss-287	676	1	6.6	6.6	NUM
dss-287	676	2	image	image	NOUN
dss-287	676	3	quality	quality	NOUN
dss-287	676	4	in	in	ADP
dss-287	676	5	schmidt	schmidt	ADJ
dss-287	676	6	-	-	PUNCT
dss-287	676	7	cassegrain	cassegrain	NOUN
dss-287	676	8	catadioptric	catadioptric	NOUN
dss-287	676	9	telescope	telescope	NOUN
dss-287	676	10	the	the	DET
dss-287	676	11	schmidt	schmidt	VERB
dss-287	676	12	-	-	PUNCT
dss-287	676	13	cassegrain	cassegrain	NOUN
dss-287	676	14	telescope	telescope	NOUN
dss-287	676	15	(	(	PUNCT
dss-287	676	16	sct	sct	PROPN
dss-287	676	17	)	)	PUNCT
dss-287	676	18	is	be	AUX
dss-287	676	19	popular	popular	ADJ
dss-287	676	20	among	among	ADP
dss-287	676	21	amateur	amateur	ADJ
dss-287	676	22	astronomers	astronomer	NOUN
dss-287	676	23	due	due	ADP
dss-287	676	24	to	to	ADP
dss-287	676	25	its	its	PRON
dss-287	676	26	compact	compact	ADJ
dss-287	676	27	design	design	NOUN
dss-287	676	28	,	,	PUNCT
dss-287	676	29	portability	portability	NOUN
dss-287	676	30	,	,	PUNCT
dss-287	676	31	closed	closed	ADJ
dss-287	676	32	tube	tube	NOUN
dss-287	676	33	,	,	PUNCT
dss-287	676	34	and	and	CCONJ
dss-287	676	35	good	good	ADJ
dss-287	676	36	color	color	NOUN
dss-287	676	37	correction	correction	NOUN
dss-287	676	38	.	.	PUNCT
dss-287	677	1	most	most	ADJ
dss-287	677	2	commercial	commercial	ADJ
dss-287	677	3	models	model	NOUN
dss-287	677	4	have	have	VERB
dss-287	677	5	an	an	DET
dss-287	677	6	f/10	f/10	ADJ
dss-287	677	7	focal	focal	ADJ
dss-287	677	8	ratio	ratio	NOUN
dss-287	677	9	,	,	PUNCT
dss-287	677	10	but	but	CCONJ
dss-287	677	11	many	many	ADJ
dss-287	677	12	users	user	NOUN
dss-287	677	13	do	do	AUX
dss-287	677	14	n’t	not	PART
dss-287	677	15	realize	realize	VERB
dss-287	677	16	scts	sct	NOUN
dss-287	677	17	belong	belong	VERB
dss-287	677	18	to	to	ADP
dss-287	677	19	a	a	DET
dss-287	677	20	broad	broad	ADJ
dss-287	677	21	family	family	NOUN
dss-287	677	22	of	of	ADP
dss-287	677	23	designs	design	NOUN
dss-287	677	24	with	with	ADP
dss-287	677	25	various	various	ADJ
dss-287	677	26	configurations	configuration	NOUN
dss-287	677	27	.	.	PUNCT
dss-287	678	1	despite	despite	SCONJ
dss-287	678	2	having	have	VERB
dss-287	678	3	only	only	ADV
dss-287	678	4	three	three	NUM
dss-287	678	5	components	component	NOUN
dss-287	678	6	,	,	PUNCT
dss-287	678	7	a	a	DET
dss-287	678	8	primary	primary	ADJ
dss-287	678	9	mirror	mirror	NOUN
dss-287	678	10	,	,	PUNCT
dss-287	678	11	a	a	DET
dss-287	678	12	secondary	secondary	ADJ
dss-287	678	13	mirror	mirror	NOUN
dss-287	678	14	,	,	PUNCT
dss-287	678	15	and	and	CCONJ
dss-287	678	16	a	a	DET
dss-287	678	17	schmidt	schmidt	ADJ
dss-287	678	18	corrector	corrector	NOUN
dss-287	678	19	,	,	PUNCT
dss-287	678	20	the	the	DET
dss-287	678	21	sct	sct	PROPN
dss-287	678	22	allows	allow	VERB
dss-287	678	23	many	many	ADJ
dss-287	678	24	design	design	NOUN
dss-287	678	25	variations	variation	NOUN
dss-287	678	26	.	.	PUNCT
dss-287	679	1	these	these	PRON
dss-287	679	2	include	include	VERB
dss-287	679	3	different	different	ADJ
dss-287	679	4	corrector	corrector	NOUN
dss-287	679	5	placements	placement	NOUN
dss-287	679	6	,	,	PUNCT
dss-287	679	7	mirror	mirror	NOUN
dss-287	679	8	shapes	shape	NOUN
dss-287	679	9	(	(	PUNCT
dss-287	679	10	spherical	spherical	ADJ
dss-287	679	11	or	or	CCONJ
dss-287	679	12	aspheric	aspheric	ADJ
dss-287	679	13	)	)	PUNCT
dss-287	679	14	,	,	PUNCT
dss-287	679	15	dss	dss	NOUN
dss-287	679	16	vol	vol	NOUN
dss-287	679	17	.	.	PROPN
dss-287	680	1	6	6	NUM
dss-287	680	2	,	,	PUNCT
dss-287	680	3	no	no	INTJ
dss-287	680	4	.	.	NOUN
dss-287	680	5	1	1	NUM
dss-287	680	6	,	,	PUNCT
dss-287	680	7	2025	2025	NUM
dss-287	680	8	,	,	PUNCT
dss-287	680	9	pp.49	pp.49	NOUN
dss-287	680	10	-	-	SYM
dss-287	680	11	90	90	NUM
dss-287	680	12	75	75	NUM
dss-287	680	13	and	and	CCONJ
dss-287	681	1	focal	focal	ADJ
dss-287	681	2	positions	position	NOUN
dss-287	681	3	(	(	PUNCT
dss-287	681	4	in	in	ADP
dss-287	681	5	front	front	NOUN
dss-287	681	6	of	of	ADP
dss-287	681	7	or	or	CCONJ
dss-287	681	8	behind	behind	ADP
dss-287	681	9	the	the	DET
dss-287	681	10	primary	primary	NOUN
dss-287	681	11	)	)	PUNCT
dss-287	681	12	.	.	PUNCT
dss-287	682	1	a	a	DET
dss-287	682	2	key	key	ADJ
dss-287	682	3	difference	difference	NOUN
dss-287	682	4	from	from	ADP
dss-287	682	5	the	the	DET
dss-287	682	6	classical	classical	ADJ
dss-287	682	7	cassegrain	cassegrain	NOUN
dss-287	682	8	reflecting	reflect	VERB
dss-287	682	9	telescope	telescope	NOUN
dss-287	682	10	is	be	AUX
dss-287	682	11	the	the	DET
dss-287	682	12	schmidt	schmidt	ADJ
dss-287	682	13	corrector	corrector	NOUN
dss-287	682	14	,	,	PUNCT
dss-287	682	15	which	which	PRON
dss-287	682	16	removes	remove	VERB
dss-287	682	17	axial	axial	ADJ
dss-287	682	18	spherical	spherical	ADJ
dss-287	682	19	aberration	aberration	NOUN
dss-287	682	20	(	(	PUNCT
dss-287	682	21	using	use	VERB
dss-287	682	22	a	a	DET
dss-287	682	23	corrector	corrector	NOUN
dss-287	682	24	plate	plate	NOUN
dss-287	682	25	)	)	PUNCT
dss-287	682	26	,	,	PUNCT
dss-287	682	27	though	though	SCONJ
dss-287	682	28	off	off	ADP
dss-287	682	29	-	-	PUNCT
dss-287	682	30	axis	axis	NOUN
dss-287	682	31	aberrations	aberration	NOUN
dss-287	682	32	like	like	ADP
dss-287	682	33	coma	coma	NOUN
dss-287	682	34	and	and	CCONJ
dss-287	682	35	astigmatism	astigmatism	NOUN
dss-287	682	36	require	require	VERB
dss-287	682	37	specific	specific	ADJ
dss-287	682	38	designs	design	NOUN
dss-287	682	39	to	to	PART
dss-287	682	40	correct	correct	VERB
dss-287	682	41	.	.	PUNCT
dss-287	683	1	practically	practically	ADV
dss-287	683	2	,	,	PUNCT
dss-287	683	3	scts	sct	NOUN
dss-287	683	4	fall	fall	VERB
dss-287	683	5	into	into	ADP
dss-287	683	6	two	two	NUM
dss-287	683	7	main	main	ADJ
dss-287	683	8	categories	category	NOUN
dss-287	683	9	:	:	PUNCT
dss-287	683	10	visual	visual	ADJ
dss-287	683	11	and	and	CCONJ
dss-287	683	12	photographic	photographic	ADJ
dss-287	683	13	.	.	PUNCT
dss-287	684	1	visual	visual	ADJ
dss-287	684	2	scts	sct	NOUN
dss-287	684	3	feature	feature	VERB
dss-287	684	4	strongly	strongly	ADV
dss-287	684	5	curved	curve	VERB
dss-287	684	6	focal	focal	ADJ
dss-287	684	7	surfaces	surface	NOUN
dss-287	684	8	and	and	CCONJ
dss-287	684	9	small	small	ADJ
dss-287	684	10	secondary	secondary	ADJ
dss-287	684	11	mirrors	mirror	NOUN
dss-287	684	12	(	(	PUNCT
dss-287	684	13	<	<	X
dss-287	684	14	30	30	NUM
dss-287	684	15	%	%	NOUN
dss-287	684	16	of	of	ADP
dss-287	684	17	the	the	DET
dss-287	684	18	primary	primary	ADJ
dss-287	684	19	diameter	diameter	NOUN
dss-287	684	20	)	)	PUNCT
dss-287	684	21	,	,	PUNCT
dss-287	684	22	which	which	PRON
dss-287	684	23	makes	make	VERB
dss-287	684	24	them	they	PRON
dss-287	684	25	unsuitable	unsuitable	ADJ
dss-287	684	26	for	for	ADP
dss-287	684	27	wide	wide	ADJ
dss-287	684	28	-	-	PUNCT
dss-287	684	29	field	field	NOUN
dss-287	684	30	photography	photography	NOUN
dss-287	684	31	without	without	ADP
dss-287	684	32	additional	additional	ADJ
dss-287	684	33	correction	correction	NOUN
dss-287	684	34	.	.	PUNCT
dss-287	685	1	photographic	photographic	ADJ
dss-287	685	2	scts	sct	NOUN
dss-287	685	3	are	be	AUX
dss-287	685	4	designed	design	VERB
dss-287	685	5	for	for	ADP
dss-287	685	6	flat	flat	ADJ
dss-287	685	7	-	-	PUNCT
dss-287	685	8	field	field	NOUN
dss-287	685	9	imaging	imaging	NOUN
dss-287	685	10	,	,	PUNCT
dss-287	685	11	requiring	require	VERB
dss-287	685	12	nearly	nearly	ADV
dss-287	685	13	equal	equal	ADJ
dss-287	685	14	radii	radius	NOUN
dss-287	685	15	of	of	ADP
dss-287	685	16	curvature	curvature	NOUN
dss-287	685	17	for	for	ADP
dss-287	685	18	both	both	DET
dss-287	685	19	mirrors	mirror	NOUN
dss-287	685	20	.	.	PUNCT
dss-287	686	1	this	this	DET
dss-287	686	2	results	result	NOUN
dss-287	686	3	in	in	ADP
dss-287	686	4	large	large	ADJ
dss-287	686	5	secondary	secondary	ADJ
dss-287	686	6	mirrors	mirror	NOUN
dss-287	686	7	(	(	PUNCT
dss-287	686	8	45–60	45–60	NUM
dss-287	686	9	%	%	NOUN
dss-287	686	10	of	of	ADP
dss-287	686	11	the	the	DET
dss-287	686	12	primary	primary	ADJ
dss-287	686	13	diameter	diameter	NOUN
dss-287	686	14	)	)	PUNCT
dss-287	686	15	and	and	CCONJ
dss-287	686	16	poor	poor	ADJ
dss-287	686	17	performance	performance	NOUN
dss-287	686	18	for	for	ADP
dss-287	686	19	visual	visual	ADJ
dss-287	686	20	use	use	NOUN
dss-287	686	21	at	at	ADP
dss-287	686	22	high	high	ADJ
dss-287	686	23	magnifications	magnification	NOUN
dss-287	686	24	.	.	PUNCT
dss-287	687	1	"	"	PUNCT
dss-287	687	2	visual	visual	ADJ
dss-287	687	3	"	"	PUNCT
dss-287	687	4	schmidt	schmidt	ADJ
dss-287	687	5	-	-	PUNCT
dss-287	687	6	cassegrain	cassegrain	NOUN
dss-287	687	7	telescopes	telescope	NOUN
dss-287	687	8	feature	feature	VERB
dss-287	687	9	a	a	DET
dss-287	687	10	curved	curved	ADJ
dss-287	687	11	focal	focal	ADJ
dss-287	687	12	surface	surface	NOUN
dss-287	687	13	and	and	CCONJ
dss-287	687	14	a	a	DET
dss-287	687	15	moderately	moderately	ADV
dss-287	687	16	sized	sized	ADJ
dss-287	687	17	secondary	secondary	ADJ
dss-287	687	18	mirror	mirror	NOUN
dss-287	687	19	,	,	PUNCT
dss-287	687	20	making	make	VERB
dss-287	687	21	them	they	PRON
dss-287	687	22	well	well	ADV
dss-287	687	23	-	-	PUNCT
dss-287	687	24	suited	suit	VERB
dss-287	687	25	for	for	ADP
dss-287	687	26	visual	visual	ADJ
dss-287	687	27	observation	observation	NOUN
dss-287	687	28	.	.	PUNCT
dss-287	688	1	in	in	ADP
dss-287	688	2	this	this	DET
dss-287	688	3	compact	compact	ADJ
dss-287	688	4	setup	setup	NOUN
dss-287	688	5	,	,	PUNCT
dss-287	688	6	the	the	DET
dss-287	688	7	secondary	secondary	ADJ
dss-287	688	8	mirror	mirror	NOUN
dss-287	688	9	is	be	AUX
dss-287	688	10	attached	attach	VERB
dss-287	688	11	to	to	ADP
dss-287	688	12	the	the	DET
dss-287	688	13	inner	inner	ADJ
dss-287	688	14	surface	surface	NOUN
dss-287	688	15	of	of	ADP
dss-287	688	16	the	the	DET
dss-287	688	17	schmidt	schmidt	ADJ
dss-287	688	18	corrector	corrector	NOUN
dss-287	688	19	lens	lens	PROPN
dss-287	688	20	.	.	PUNCT
dss-287	689	1	the	the	DET
dss-287	689	2	primary	primary	ADJ
dss-287	689	3	mirror	mirror	NOUN
dss-287	689	4	has	have	VERB
dss-287	689	5	an	an	DET
dss-287	689	6	f/2	f/2	ADJ
dss-287	689	7	focal	focal	ADJ
dss-287	689	8	ratio	ratio	NOUN
dss-287	689	9	,	,	PUNCT
dss-287	689	10	with	with	ADP
dss-287	689	11	a	a	DET
dss-287	689	12	secondary	secondary	ADJ
dss-287	689	13	magnification	magnification	NOUN
dss-287	689	14	of	of	ADP
dss-287	689	15	5	5	NUM
dss-287	689	16	,	,	PUNCT
dss-287	689	17	comparable	comparable	ADJ
dss-287	689	18	to	to	ADP
dss-287	689	19	standard	standard	ADJ
dss-287	689	20	commercial	commercial	ADJ
dss-287	689	21	200	200	NUM
dss-287	689	22	mm	mm	NOUN
dss-287	689	23	f/10	f/10	ADJ
dss-287	689	24	telescope	telescope	NOUN
dss-287	689	25	systems	system	NOUN
dss-287	689	26	.	.	PUNCT
dss-287	690	1	fig	fig	NOUN
dss-287	690	2	.	.	PUNCT
dss-287	691	1	12	12	NUM
dss-287	691	2	presents	present	NOUN
dss-287	691	3	spot	spot	NOUN
dss-287	691	4	diagrams	diagram	NOUN
dss-287	691	5	for	for	ADP
dss-287	691	6	a	a	DET
dss-287	691	7	200	200	NUM
dss-287	691	8	mm	mm	NOUN
dss-287	691	9	f/10	f/10	ADJ
dss-287	691	10	schmidt	schmidt	NOUN
dss-287	691	11	-	-	PUNCT
dss-287	691	12	cassegrain	cassegrain	NOUN
dss-287	691	13	with	with	ADP
dss-287	691	14	spherical	spherical	ADJ
dss-287	691	15	mirrors	mirror	NOUN
dss-287	691	16	(	(	PUNCT
dss-287	691	17	as	as	SCONJ
dss-287	691	18	reported	report	VERB
dss-287	691	19	in	in	ADP
dss-287	691	20	[	[	X
dss-287	691	21	3	3	NUM
dss-287	691	22	]	]	NUM
dss-287	691	23	)	)	PUNCT
dss-287	692	1	,	,	PUNCT
dss-287	692	2	both	both	PRON
dss-287	692	3	onand	onand	VERB
dss-287	692	4	off	off	ADV
dss-287	692	5	-	-	PUNCT
dss-287	692	6	axis	axis	NOUN
dss-287	692	7	,	,	PUNCT
dss-287	692	8	for	for	ADP
dss-287	692	9	flat	flat	ADJ
dss-287	692	10	and	and	CCONJ
dss-287	692	11	curved	curved	ADJ
dss-287	692	12	focal	focal	ADJ
dss-287	692	13	surfaces	surface	NOUN
dss-287	692	14	.	.	PUNCT
dss-287	693	1	while	while	SCONJ
dss-287	693	2	axial	axial	ADJ
dss-287	693	3	sharpness	sharpness	NOUN
dss-287	693	4	is	be	AUX
dss-287	693	5	excellent	excellent	ADJ
dss-287	693	6	,	,	PUNCT
dss-287	693	7	off	off	ADP
dss-287	693	8	-	-	PUNCT
dss-287	693	9	axis	axis	NOUN
dss-287	693	10	performance	performance	NOUN
dss-287	693	11	suffers	suffer	VERB
dss-287	693	12	from	from	ADP
dss-287	693	13	strong	strong	ADJ
dss-287	693	14	coma	coma	NOUN
dss-287	693	15	,	,	PUNCT
dss-287	693	16	comparable	comparable	ADJ
dss-287	693	17	to	to	ADP
dss-287	693	18	a	a	DET
dss-287	693	19	200	200	NUM
dss-287	693	20	mm	mm	NOUN
dss-287	693	21	f/5	f/5	NUM
dss-287	693	22	newtonian	newtonian	NOUN
dss-287	693	23	.	.	PUNCT
dss-287	694	1	this	this	PRON
dss-287	694	2	makes	make	VERB
dss-287	694	3	compact	compact	ADJ
dss-287	694	4	scts	sct	NOUN
dss-287	694	5	with	with	ADP
dss-287	694	6	spherical	spherical	ADJ
dss-287	694	7	mirrors	mirror	NOUN
dss-287	694	8	unsuitable	unsuitable	ADJ
dss-287	694	9	for	for	ADP
dss-287	694	10	wide	wide	ADJ
dss-287	694	11	fields	field	NOUN
dss-287	694	12	.	.	PUNCT
dss-287	695	1	to	to	PART
dss-287	695	2	reduce	reduce	VERB
dss-287	695	3	coma	coma	NOUN
dss-287	695	4	while	while	SCONJ
dss-287	695	5	maintaining	maintain	VERB
dss-287	695	6	sharp	sharp	ADJ
dss-287	695	7	axial	axial	ADJ
dss-287	695	8	images	image	NOUN
dss-287	695	9	,	,	PUNCT
dss-287	695	10	designers	designer	NOUN
dss-287	695	11	may	may	AUX
dss-287	695	12	:	:	PUNCT
dss-287	695	13	(	(	PUNCT
dss-287	695	14	a	a	X
dss-287	695	15	)	)	PUNCT
dss-287	695	16	aspherize	aspherize	VERB
dss-287	695	17	the	the	DET
dss-287	695	18	primary	primary	NOUN
dss-287	695	19	,	,	PUNCT
dss-287	695	20	(	(	PUNCT
dss-287	695	21	b	b	X
dss-287	695	22	)	)	PUNCT
dss-287	695	23	aspherize	aspherize	VERB
dss-287	695	24	the	the	DET
dss-287	695	25	secondary	secondary	ADJ
dss-287	695	26	,	,	PUNCT
dss-287	695	27	(	(	PUNCT
dss-287	695	28	c	c	X
dss-287	695	29	)	)	PUNCT
dss-287	695	30	aspherize	aspherize	NOUN
dss-287	695	31	both	both	PRON
dss-287	695	32	,	,	PUNCT
dss-287	695	33	or	or	CCONJ
dss-287	695	34	(	(	PUNCT
dss-287	695	35	d	d	X
dss-287	695	36	)	)	PUNCT
dss-287	695	37	reposition	reposition	NOUN
dss-287	695	38	the	the	DET
dss-287	695	39	schmidt	schmidt	ADJ
dss-287	695	40	corrector	corrector	NOUN
dss-287	695	41	(	(	PUNCT
dss-287	695	42	abandoning	abandon	VERB
dss-287	695	43	compactness	compactness	NOUN
dss-287	695	44	)	)	PUNCT
dss-287	695	45	.	.	PUNCT
dss-287	696	1	the	the	DET
dss-287	696	2	most	most	ADV
dss-287	696	3	common	common	ADJ
dss-287	696	4	solution	solution	NOUN
dss-287	696	5	is	be	AUX
dss-287	696	6	aspherizing	aspherize	VERB
dss-287	696	7	the	the	DET
dss-287	696	8	secondary	secondary	ADJ
dss-287	696	9	;	;	PUNCT
dss-287	696	10	using	use	VERB
dss-287	696	11	both	both	CCONJ
dss-287	696	12	aspheric	aspheric	ADJ
dss-287	696	13	mirrors	mirror	NOUN
dss-287	696	14	is	be	AUX
dss-287	696	15	rare	rare	ADJ
dss-287	696	16	in	in	ADP
dss-287	696	17	amateur	amateur	ADJ
dss-287	696	18	telescopes	telescope	NOUN
dss-287	696	19	.	.	PUNCT
dss-287	697	1	fig	fig	NOUN
dss-287	697	2	.	.	PUNCT
dss-287	698	1	12	12	NUM
dss-287	698	2	spot	spot	NOUN
dss-287	698	3	diagrams	diagram	NOUN
dss-287	698	4	for	for	ADP
dss-287	698	5	a	a	DET
dss-287	698	6	200	200	NUM
dss-287	698	7	mm	mm	NOUN
dss-287	698	8	f/10	f/10	ADJ
dss-287	698	9	all	all	PRON
dss-287	698	10	-	-	PUNCT
dss-287	698	11	spherical	spherical	ADJ
dss-287	698	12	schmidt	schmidt	ADJ
dss-287	698	13	-	-	PUNCT
dss-287	698	14	cassegrain	cassegrain	NOUN
dss-287	698	15	telescope	telescope	NOUN
dss-287	698	16	[	[	X
dss-287	698	17	3	3	NUM
dss-287	698	18	]	]	ADJ
dss-287	698	19	dss	dss	NOUN
dss-287	698	20	vol	vol	NOUN
dss-287	698	21	.	.	PROPN
dss-287	698	22	6	6	NUM
dss-287	698	23	,	,	PUNCT
dss-287	698	24	no	no	INTJ
dss-287	698	25	.	.	NOUN
dss-287	698	26	1	1	NUM
dss-287	698	27	,	,	PUNCT
dss-287	698	28	2025	2025	NUM
dss-287	698	29	,	,	PUNCT
dss-287	698	30	pp.49	pp.49	NOUN
dss-287	698	31	-	-	SYM
dss-287	698	32	90	90	NUM
dss-287	698	33	76	76	NUM
dss-287	698	34	figure	figure	NOUN
dss-287	698	35	13	13	NUM
dss-287	698	36	shows	show	VERB
dss-287	698	37	spot	spot	NOUN
dss-287	698	38	diagrams	diagram	NOUN
dss-287	698	39	for	for	ADP
dss-287	698	40	an	an	DET
dss-287	698	41	optimized	optimize	VERB
dss-287	698	42	200	200	NUM
dss-287	698	43	mm	mm	NOUN
dss-287	698	44	f/10	f/10	ADJ
dss-287	698	45	schmidt	schmidt	NOUN
dss-287	698	46	-	-	PUNCT
dss-287	698	47	cassegrain	cassegrain	NOUN
dss-287	698	48	with	with	ADP
dss-287	698	49	an	an	DET
dss-287	698	50	aspherized	aspherized	ADJ
dss-287	698	51	secondary	secondary	NOUN
dss-287	698	52	,	,	PUNCT
dss-287	698	53	as	as	SCONJ
dss-287	698	54	reported	report	VERB
dss-287	698	55	in	in	ADP
dss-287	698	56	[	[	X
dss-287	698	57	3	3	NUM
dss-287	698	58	]	]	PUNCT
dss-287	698	59	.	.	PUNCT
dss-287	699	1	at	at	ADP
dss-287	699	2	the	the	DET
dss-287	699	3	flat	flat	ADJ
dss-287	699	4	focal	focal	ADJ
dss-287	699	5	surface	surface	NOUN
dss-287	699	6	(	(	PUNCT
dss-287	699	7	top	top	ADJ
dss-287	699	8	row	row	NOUN
dss-287	699	9	)	)	PUNCT
dss-287	699	10	,	,	PUNCT
dss-287	699	11	sharp	sharp	ADJ
dss-287	699	12	images	image	NOUN
dss-287	699	13	are	be	AUX
dss-287	699	14	limited	limit	VERB
dss-287	699	15	to	to	ADP
dss-287	699	16	the	the	DET
dss-287	699	17	central	central	ADJ
dss-287	699	18	20	20	NUM
dss-287	699	19	mm	mm	NOUN
dss-287	699	20	about	about	ADP
dss-287	699	21	the	the	DET
dss-287	699	22	size	size	NOUN
dss-287	699	23	of	of	ADP
dss-287	699	24	the	the	DET
dss-287	699	25	full	full	ADJ
dss-287	699	26	moon	moon	NOUN
dss-287	699	27	with	with	ADP
dss-287	699	28	increasing	increase	VERB
dss-287	699	29	blur	blur	NOUN
dss-287	699	30	beyond	beyond	ADP
dss-287	699	31	that	that	PRON
dss-287	699	32	.	.	PUNCT
dss-287	700	1	at	at	ADP
dss-287	700	2	the	the	DET
dss-287	700	3	curved	curved	ADJ
dss-287	700	4	focal	focal	ADJ
dss-287	700	5	surface	surface	NOUN
dss-287	700	6	(	(	PUNCT
dss-287	700	7	bottom	bottom	NOUN
dss-287	700	8	row	row	NOUN
dss-287	700	9	)	)	PUNCT
dss-287	700	10	,	,	PUNCT
dss-287	700	11	image	image	NOUN
dss-287	700	12	quality	quality	NOUN
dss-287	700	13	is	be	AUX
dss-287	700	14	diffraction	diffraction	NOUN
dss-287	700	15	-	-	PUNCT
dss-287	700	16	limited	limit	VERB
dss-287	700	17	over	over	ADP
dss-287	700	18	a	a	DET
dss-287	700	19	wide	wide	ADJ
dss-287	700	20	area	area	NOUN
dss-287	700	21	,	,	PUNCT
dss-287	700	22	offering	offer	VERB
dss-287	700	23	excellent	excellent	ADJ
dss-287	700	24	visual	visual	ADJ
dss-287	700	25	performance	performance	NOUN
dss-287	700	26	.	.	PUNCT
dss-287	701	1	photographic	photographic	ADJ
dss-287	701	2	results	result	NOUN
dss-287	701	3	can	can	AUX
dss-287	701	4	improve	improve	VERB
dss-287	701	5	with	with	ADP
dss-287	701	6	curved	curved	ADJ
dss-287	701	7	film	film	NOUN
dss-287	701	8	or	or	CCONJ
dss-287	701	9	a	a	DET
dss-287	701	10	field	field	NOUN
dss-287	701	11	flattener	flattener	NOUN
dss-287	701	12	.	.	PUNCT
dss-287	702	1	in	in	ADP
dss-287	702	2	this	this	DET
dss-287	702	3	design	design	NOUN
dss-287	702	4	,	,	PUNCT
dss-287	702	5	the	the	DET
dss-287	702	6	schmidt	schmidt	ADJ
dss-287	702	7	corrector	corrector	NOUN
dss-287	702	8	provides	provide	VERB
dss-287	702	9	83.42	83.42	NUM
dss-287	702	10	%	%	NOUN
dss-287	702	11	of	of	ADP
dss-287	702	12	the	the	DET
dss-287	702	13	spherical	spherical	ADJ
dss-287	702	14	aberration	aberration	NOUN
dss-287	702	15	correction	correction	NOUN
dss-287	702	16	,	,	PUNCT
dss-287	702	17	with	with	SCONJ
dss-287	702	18	the	the	DET
dss-287	702	19	rest	rest	NOUN
dss-287	702	20	handled	handle	VERB
dss-287	702	21	by	by	ADP
dss-287	702	22	the	the	DET
dss-287	702	23	aspheric	aspheric	ADJ
dss-287	702	24	secondary	secondary	ADJ
dss-287	702	25	[	[	X
dss-287	702	26	3	3	NUM
dss-287	702	27	]	]	PUNCT
dss-287	702	28	.	.	PUNCT
dss-287	703	1	fig	fig	NOUN
dss-287	703	2	.	.	PUNCT
dss-287	704	1	13	13	NUM
dss-287	704	2	spot	spot	NOUN
dss-287	704	3	diagrams	diagram	NOUN
dss-287	704	4	for	for	ADP
dss-287	704	5	an	an	DET
dss-287	704	6	optimized	optimize	VERB
dss-287	704	7	(	(	PUNCT
dss-287	704	8	secondary	secondary	ADJ
dss-287	704	9	mirror	mirror	NOUN
dss-287	704	10	aspherized	aspherize	VERB
dss-287	704	11	)	)	PUNCT
dss-287	704	12	200	200	NUM
dss-287	704	13	mm	mm	NOUN
dss-287	704	14	f/10	f/10	PROPN
dss-287	704	15	sct	sct	PROPN
dss-287	705	1	[	[	X
dss-287	705	2	3	3	NUM
dss-287	705	3	]	]	PUNCT
dss-287	705	4	figure	figure	NOUN
dss-287	705	5	14	14	NUM
dss-287	705	6	shows	show	VERB
dss-287	705	7	spot	spot	NOUN
dss-287	705	8	diagrams	diagram	NOUN
dss-287	705	9	for	for	ADP
dss-287	705	10	red	red	ADJ
dss-287	705	11	,	,	PUNCT
dss-287	705	12	green	green	ADJ
dss-287	705	13	,	,	PUNCT
dss-287	705	14	and	and	CCONJ
dss-287	705	15	blue	blue	ADJ
dss-287	705	16	light	light	NOUN
dss-287	705	17	in	in	ADP
dss-287	705	18	the	the	DET
dss-287	705	19	sct	sct	PROPN
dss-287	705	20	system	system	NOUN
dss-287	705	21	optimized	optimize	VERB
dss-287	705	22	for	for	ADP
dss-287	705	23	green	green	ADJ
dss-287	705	24	,	,	PUNCT
dss-287	705	25	as	as	SCONJ
dss-287	705	26	reported	report	VERB
dss-287	705	27	in	in	ADP
dss-287	705	28	[	[	X
dss-287	705	29	3	3	NUM
dss-287	705	30	]	]	PUNCT
dss-287	705	31	.	.	PUNCT
dss-287	706	1	the	the	DET
dss-287	706	2	remaining	remain	VERB
dss-287	706	3	color	color	NOUN
dss-287	706	4	error	error	NOUN
dss-287	706	5	is	be	AUX
dss-287	706	6	due	due	ADJ
dss-287	706	7	to	to	ADP
dss-287	706	8	spherochromatism	spherochromatism	NOUN
dss-287	706	9	the	the	DET
dss-287	706	10	change	change	NOUN
dss-287	706	11	of	of	ADP
dss-287	706	12	spherical	spherical	ADJ
dss-287	706	13	aberration	aberration	NOUN
dss-287	706	14	with	with	ADP
dss-287	706	15	wavelength	wavelength	NOUN
dss-287	706	16	.	.	PUNCT
dss-287	707	1	all	all	DET
dss-287	707	2	colors	color	NOUN
dss-287	707	3	focus	focus	VERB
dss-287	707	4	on	on	ADP
dss-287	707	5	the	the	DET
dss-287	707	6	neutral	neutral	ADJ
dss-287	707	7	zone	zone	NOUN
dss-287	707	8	where	where	SCONJ
dss-287	707	9	the	the	DET
dss-287	707	10	corrective	corrective	ADJ
dss-287	707	11	lens	lens	NOUN
dss-287	707	12	has	have	VERB
dss-287	707	13	no	no	DET
dss-287	707	14	refractive	refractive	ADJ
dss-287	707	15	power	power	NOUN
dss-287	707	16	.	.	PUNCT
dss-287	708	1	elsewhere	elsewhere	ADV
dss-287	708	2	,	,	PUNCT
dss-287	708	3	refraction	refraction	NOUN
dss-287	708	4	varies	vary	VERB
dss-287	708	5	by	by	ADP
dss-287	708	6	wavelength	wavelength	NOUN
dss-287	708	7	,	,	PUNCT
dss-287	708	8	causing	cause	VERB
dss-287	708	9	color	color	NOUN
dss-287	708	10	differences	difference	NOUN
dss-287	708	11	.	.	PUNCT
dss-287	709	1	in	in	ADP
dss-287	709	2	this	this	DET
dss-287	709	3	system	system	NOUN
dss-287	709	4	,	,	PUNCT
dss-287	709	5	color	color	NOUN
dss-287	709	6	aberration	aberration	NOUN
dss-287	709	7	is	be	AUX
dss-287	709	8	about	about	ADV
dss-287	709	9	five	five	NUM
dss-287	709	10	times	time	NOUN
dss-287	709	11	less	less	ADJ
dss-287	709	12	than	than	ADP
dss-287	709	13	in	in	ADP
dss-287	709	14	a	a	DET
dss-287	709	15	comparable	comparable	ADJ
dss-287	709	16	f/15	f/15	PROPN
dss-287	709	17	fraunhofer	fraunhofer	PROPN
dss-287	709	18	doublet	doublet	PROPN
dss-287	709	19	refractor	refractor	NOUN
dss-287	709	20	of	of	ADP
dss-287	709	21	the	the	DET
dss-287	709	22	same	same	ADJ
dss-287	709	23	aperture	aperture	NOUN
dss-287	709	24	.	.	PUNCT
dss-287	710	1	the	the	DET
dss-287	710	2	main	main	ADJ
dss-287	710	3	drawback	drawback	NOUN
dss-287	710	4	of	of	ADP
dss-287	710	5	this	this	DET
dss-287	710	6	design	design	NOUN
dss-287	710	7	is	be	AUX
dss-287	710	8	the	the	DET
dss-287	710	9	large	large	ADJ
dss-287	710	10	central	central	ADJ
dss-287	710	11	obstruction	obstruction	NOUN
dss-287	710	12	from	from	ADP
dss-287	710	13	the	the	DET
dss-287	710	14	secondary	secondary	ADJ
dss-287	710	15	mirror	mirror	NOUN
dss-287	710	16	and	and	CCONJ
dss-287	710	17	its	its	PRON
dss-287	710	18	holder	holder	NOUN
dss-287	710	19	,	,	PUNCT
dss-287	710	20	which	which	PRON
dss-287	710	21	is	be	AUX
dss-287	710	22	34	34	NUM
dss-287	710	23	%	%	NOUN
dss-287	710	24	of	of	ADP
dss-287	710	25	the	the	DET
dss-287	710	26	entrance	entrance	NOUN
dss-287	710	27	pupil	pupil	NOUN
dss-287	710	28	diameter	diameter	NOUN
dss-287	710	29	,	,	PUNCT
dss-287	710	30	larger	large	ADJ
dss-287	710	31	than	than	ADP
dss-287	710	32	ideal	ideal	ADJ
dss-287	710	33	for	for	ADP
dss-287	710	34	observing	observe	VERB
dss-287	710	35	low	low	ADJ
dss-287	710	36	-	-	PUNCT
dss-287	710	37	contrast	contrast	NOUN
dss-287	710	38	objects	object	NOUN
dss-287	710	39	like	like	ADP
dss-287	710	40	planetary	planetary	ADJ
dss-287	710	41	details	detail	NOUN
dss-287	710	42	.	.	PUNCT
dss-287	711	1	reducing	reduce	VERB
dss-287	711	2	the	the	DET
dss-287	711	3	secondary	secondary	ADJ
dss-287	711	4	size	size	NOUN
dss-287	711	5	by	by	ADP
dss-287	711	6	using	use	VERB
dss-287	711	7	a	a	DET
dss-287	711	8	slower	slow	ADJ
dss-287	711	9	system	system	NOUN
dss-287	711	10	(	(	PUNCT
dss-287	711	11	f/15	f/15	NOUN
dss-287	711	12	or	or	CCONJ
dss-287	711	13	f/20	f/20	PROPN
dss-287	711	14	instead	instead	ADV
dss-287	711	15	of	of	ADP
dss-287	711	16	f/10	f/10	ADJ
dss-287	711	17	)	)	PUNCT
dss-287	711	18	shrinks	shrink	VERB
dss-287	711	19	the	the	DET
dss-287	711	20	field	field	NOUN
dss-287	711	21	of	of	ADP
dss-287	711	22	view	view	NOUN
dss-287	711	23	,	,	PUNCT
dss-287	711	24	making	make	VERB
dss-287	711	25	the	the	DET
dss-287	711	26	telescope	telescope	NOUN
dss-287	711	27	less	less	ADV
dss-287	711	28	versatile	versatile	ADJ
dss-287	711	29	.	.	PUNCT
dss-287	712	1	additionally	additionally	ADV
dss-287	712	2	,	,	PUNCT
dss-287	712	3	cassegrain	cassegrain	PROPN
dss-287	712	4	telescopes	telescope	NOUN
dss-287	712	5	need	need	VERB
dss-287	712	6	baffle	baffle	VERB
dss-287	712	7	tubes	tube	NOUN
dss-287	712	8	to	to	PART
dss-287	712	9	block	block	VERB
dss-287	712	10	stray	stray	ADJ
dss-287	712	11	light	light	NOUN
dss-287	712	12	,	,	PUNCT
dss-287	712	13	which	which	PRON
dss-287	712	14	prevents	prevent	VERB
dss-287	712	15	reducing	reduce	VERB
dss-287	712	16	the	the	DET
dss-287	712	17	central	central	ADJ
dss-287	712	18	obstruction	obstruction	NOUN
dss-287	712	19	below	below	ADP
dss-287	712	20	about	about	ADV
dss-287	712	21	30	30	NUM
dss-287	712	22	%	%	NOUN
dss-287	712	23	in	in	ADP
dss-287	712	24	a	a	DET
dss-287	712	25	200	200	NUM
dss-287	712	26	mm	mm	NOUN
dss-287	712	27	instrument	instrument	NOUN
dss-287	712	28	[	[	X
dss-287	712	29	3	3	NUM
dss-287	712	30	]	]	PUNCT
dss-287	712	31	.	.	PUNCT
dss-287	713	1	fig	fig	NOUN
dss-287	713	2	.	.	PUNCT
dss-287	714	1	14	14	NUM
dss-287	714	2	color	color	NOUN
dss-287	714	3	correction	correction	NOUN
dss-287	714	4	for	for	ADP
dss-287	714	5	an	an	DET
dss-287	714	6	optimized	optimize	VERB
dss-287	714	7	200	200	NUM
dss-287	714	8	mm	mm	NOUN
dss-287	714	9	f/10	f/10	PROPN
dss-287	714	10	sct	sct	PROPN
dss-287	715	1	[	[	X
dss-287	715	2	3	3	NUM
dss-287	715	3	]	]	PUNCT
dss-287	715	4	comparing	compare	VERB
dss-287	715	5	the	the	DET
dss-287	715	6	off	off	ADJ
dss-287	715	7	-	-	PUNCT
dss-287	715	8	axis	axis	NOUN
dss-287	715	9	performance	performance	NOUN
dss-287	715	10	of	of	ADP
dss-287	715	11	the	the	DET
dss-287	715	12	optimized	optimize	VERB
dss-287	715	13	visual	visual	ADJ
dss-287	715	14	schmidt	schmidt	NOUN
dss-287	715	15	-	-	PUNCT
dss-287	715	16	cassegrain	cassegrain	NOUN
dss-287	715	17	telescope	telescope	NOUN
dss-287	715	18	to	to	ADP
dss-287	715	19	a	a	DET
dss-287	715	20	similar	similar	ADJ
dss-287	715	21	f/10	f/10	ADJ
dss-287	715	22	two	two	NUM
dss-287	715	23	-	-	PUNCT
dss-287	715	24	mirror	mirror	NOUN
dss-287	715	25	classical	classical	ADJ
dss-287	715	26	cassegrain	cassegrain	NOUN
dss-287	715	27	reflector	reflector	NOUN
dss-287	715	28	shows	show	VERB
dss-287	715	29	the	the	DET
dss-287	715	30	latter	latter	ADJ
dss-287	715	31	has	have	VERB
dss-287	715	32	spot	spot	NOUN
dss-287	715	33	diagrams	diagram	NOUN
dss-287	715	34	about	about	ADP
dss-287	715	35	four	four	NUM
dss-287	715	36	times	time	NOUN
dss-287	715	37	larger	large	ADJ
dss-287	715	38	.	.	PUNCT
dss-287	716	1	the	the	DET
dss-287	716	2	sct	sct	PROPN
dss-287	716	3	’s	’s	PART
dss-287	716	4	better	well	ADJ
dss-287	716	5	performance	performance	NOUN
dss-287	716	6	is	be	AUX
dss-287	716	7	due	due	ADJ
dss-287	716	8	to	to	ADP
dss-287	716	9	two	two	NUM
dss-287	716	10	factors	factor	NOUN
dss-287	716	11	:	:	PUNCT
dss-287	716	12	moving	move	VERB
dss-287	716	13	the	the	DET
dss-287	716	14	entrance	entrance	NOUN
dss-287	716	15	pupil	pupil	NOUN
dss-287	716	16	from	from	ADP
dss-287	716	17	the	the	DET
dss-287	716	18	primary	primary	ADJ
dss-287	716	19	mirror	mirror	NOUN
dss-287	716	20	to	to	ADP
dss-287	716	21	the	the	DET
dss-287	716	22	schmidt	schmidt	ADJ
dss-287	716	23	corrector	corrector	NOUN
dss-287	716	24	and	and	CCONJ
dss-287	716	25	adding	add	VERB
dss-287	716	26	an	an	DET
dss-287	716	27	extra	extra	ADJ
dss-287	716	28	optical	optical	ADJ
dss-287	716	29	surface	surface	NOUN
dss-287	716	30	,	,	PUNCT
dss-287	716	31	which	which	PRON
dss-287	716	32	allows	allow	VERB
dss-287	716	33	better	well	ADJ
dss-287	716	34	correction	correction	NOUN
dss-287	716	35	of	of	ADP
dss-287	716	36	aberrations	aberration	NOUN
dss-287	716	37	across	across	ADP
dss-287	716	38	three	three	NUM
dss-287	716	39	surfaces	surface	NOUN
dss-287	716	40	instead	instead	ADV
dss-287	716	41	of	of	ADP
dss-287	716	42	two	two	NUM
dss-287	716	43	[	[	X
dss-287	716	44	3	3	NUM
dss-287	716	45	]	]	PUNCT
dss-287	716	46	.	.	PUNCT
dss-287	717	1	flat	flat	ADJ
dss-287	717	2	-	-	PUNCT
dss-287	717	3	field	field	NOUN
dss-287	717	4	schmidt	schmidt	NOUN
dss-287	717	5	-	-	PUNCT
dss-287	717	6	cassegrain	cassegrain	NOUN
dss-287	717	7	telescope	telescope	NOUN
dss-287	717	8	design	design	NOUN
dss-287	717	9	is	be	AUX
dss-287	717	10	also	also	ADV
dss-287	717	11	discussed	discuss	VERB
dss-287	717	12	in	in	ADP
dss-287	717	13	reference	reference	NOUN
dss-287	717	14	[	[	X
dss-287	717	15	3	3	NUM
dss-287	717	16	]	]	PUNCT
dss-287	717	17	.	.	PUNCT
dss-287	718	1	table	table	NOUN
dss-287	718	2	4	4	NUM
dss-287	718	3	provides	provide	VERB
dss-287	718	4	paameters	paameter	NOUN
dss-287	718	5	for	for	ADP
dss-287	718	6	this	this	DET
dss-287	718	7	200	200	NUM
dss-287	718	8	mm	mm	NOUN
dss-287	718	9	f/4	f/4	NOUN
dss-287	718	10	telescope	telescope	NOUN
dss-287	718	11	.	.	PUNCT
dss-287	719	1	dss	dss	NOUN
dss-287	719	2	vol	vol	NOUN
dss-287	719	3	.	.	PROPN
dss-287	720	1	6	6	NUM
dss-287	720	2	,	,	PUNCT
dss-287	720	3	no	no	INTJ
dss-287	720	4	.	.	NOUN
dss-287	720	5	1	1	NUM
dss-287	720	6	,	,	PUNCT
dss-287	720	7	2025	2025	NUM
dss-287	720	8	,	,	PUNCT
dss-287	720	9	pp.49	pp.49	NOUN
dss-287	720	10	-	-	SYM
dss-287	720	11	90	90	NUM
dss-287	720	12	77	77	NUM
dss-287	720	13	table	table	NOUN
dss-287	720	14	4	4	NUM
dss-287	720	15	data	datum	NOUN
dss-287	720	16	for	for	ADP
dss-287	720	17	200	200	NUM
dss-287	720	18	mm	mm	PROPN
dss-287	720	19	f/4	f/4	NOUN
dss-287	720	20	schmidt	schmidt	ADJ
dss-287	720	21	-	-	PUNCT
dss-287	720	22	cassegrain	cassegrain	NOUN
dss-287	720	23	telescope	telescope	NOUN
dss-287	720	24	(	(	PUNCT
dss-287	720	25	dimensions	dimension	NOUN
dss-287	720	26	in	in	ADP
dss-287	720	27	millimeters	millimeter	NOUN
dss-287	720	28	)	)	PUNCT
dss-287	721	1	[	[	X
dss-287	721	2	3	3	NUM
dss-287	721	3	]	]	X
dss-287	721	4	corrector	corrector	NOUN
dss-287	721	5	radius	radius	NOUN
dss-287	721	6	,	,	PUNCT
dss-287	721	7	first	first	ADJ
dss-287	721	8	surface	surface	NOUN
dss-287	721	9	flat	flat	ADJ
dss-287	721	10	thickness	thickness	NOUN
dss-287	721	11	4	4	NUM
dss-287	721	12	glass	glass	NOUN
dss-287	721	13	517643	517643	NUM
dss-287	721	14	paraxial	paraxial	ADJ
dss-287	721	15	radius	radius	NOUN
dss-287	721	16	,	,	PUNCT
dss-287	721	17	second	second	ADJ
dss-287	721	18	surface	surface	NOUN
dss-287	721	19	-83250	-83250	NOUN
dss-287	721	20	radius	radius	NOUN
dss-287	721	21	of	of	ADP
dss-287	721	22	neutral	neutral	ADJ
dss-287	721	23	zone	zone	NOUN
dss-287	721	24	86.6	86.6	NUM
dss-287	721	25	%	%	NOUN
dss-287	721	26	of	of	ADP
dss-287	721	27	100	100	NUM
dss-287	721	28	mm	mm	NOUN
dss-287	721	29	relative	relative	ADJ
dss-287	721	30	power	power	NOUN
dss-287	721	31	50.5	50.5	NUM
dss-287	721	32	%	%	NOUN
dss-287	721	33	distance	distance	NOUN
dss-287	721	34	to	to	PART
dss-287	721	35	primary	primary	ADJ
dss-287	721	36	977.2	977.2	NUM
dss-287	721	37	primary	primary	ADJ
dss-287	721	38	radius	radius	NOUN
dss-287	721	39	of	of	ADP
dss-287	721	40	curvature	curvature	NOUN
dss-287	721	41	-845.6	-845.6	PROPN
dss-287	721	42	distance	distance	NOUN
dss-287	721	43	to	to	ADP
dss-287	721	44	secondary	secondary	ADJ
dss-287	721	45	-231.6	-231.6	PROPN
dss-287	721	46	secondary	secondary	ADJ
dss-287	721	47	radius	radius	NOUN
dss-287	721	48	of	of	ADP
dss-287	721	49	curvature	curvature	NOUN
dss-287	721	50	-809.7	-809.7	PUNCT
dss-287	721	51	distance	distance	NOUN
dss-287	721	52	to	to	ADP
dss-287	721	53	focal	focal	ADJ
dss-287	721	54	surface	surface	NOUN
dss-287	721	55	358.285	358.285	NUM
dss-287	721	56	radius	radius	NOUN
dss-287	721	57	of	of	ADP
dss-287	721	58	focal	focal	ADJ
dss-287	721	59	surface	surface	NOUN
dss-287	721	60	flat	flat	ADJ
dss-287	721	61	effective	effective	ADJ
dss-287	721	62	focal	focal	ADJ
dss-287	721	63	length	length	NOUN
dss-287	721	64	800	800	NUM
dss-287	721	65	geometric	geometric	ADJ
dss-287	721	66	focal	focal	ADJ
dss-287	721	67	ratio	ratio	NOUN
dss-287	721	68	f/4	f/4	NUM
dss-287	721	69	diameters	diameter	NOUN
dss-287	721	70	schmidt	schmidt	ADJ
dss-287	721	71	corrector	corrector	NOUN
dss-287	721	72	216	216	NUM
dss-287	721	73	stop	stop	VERB
dss-287	721	74	200	200	NUM
dss-287	721	75	primary	primary	ADJ
dss-287	721	76	mirror	mirror	NOUN
dss-287	721	77	220	220	NUM
dss-287	721	78	secondary	secondary	ADJ
dss-287	721	79	mirror	mirror	NOUN
dss-287	721	80	110	110	NUM
dss-287	721	81	distance	distance	NOUN
dss-287	721	82	,	,	PUNCT
dss-287	721	83	stop	stop	VERB
dss-287	721	84	to	to	PART
dss-287	721	85	corrector	corrector	VERB
dss-287	721	86	300	300	NUM
dss-287	721	87	1	1	NUM
dss-287	721	88	°	°	NUM
dss-287	721	89	field	field	NOUN
dss-287	721	90	14.0	14.0	NUM
dss-287	721	91	this	this	PRON
dss-287	721	92	is	be	AUX
dss-287	721	93	essentially	essentially	ADV
dss-287	721	94	a	a	DET
dss-287	721	95	variant	variant	NOUN
dss-287	721	96	of	of	ADP
dss-287	721	97	the	the	DET
dss-287	721	98	slevogt	slevogt	ADJ
dss-287	721	99	flat	flat	ADJ
dss-287	721	100	-	-	PUNCT
dss-287	721	101	field	field	NOUN
dss-287	721	102	telescope	telescope	NOUN
dss-287	721	103	design	design	NOUN
dss-287	721	104	,	,	PUNCT
dss-287	721	105	where	where	SCONJ
dss-287	721	106	a	a	DET
dss-287	721	107	compromise	compromise	NOUN
dss-287	721	108	is	be	AUX
dss-287	721	109	achieved	achieve	VERB
dss-287	721	110	by	by	ADP
dss-287	721	111	positioning	position	VERB
dss-287	721	112	a	a	DET
dss-287	721	113	200	200	NUM
dss-287	721	114	mm	mm	NOUN
dss-287	721	115	diameter	diameter	NOUN
dss-287	721	116	stop	stop	VERB
dss-287	721	117	300	300	NUM
dss-287	721	118	mm	mm	NOUN
dss-287	721	119	behind	behind	ADP
dss-287	721	120	the	the	DET
dss-287	721	121	corrector	corrector	NOUN
dss-287	721	122	.	.	PUNCT
dss-287	722	1	this	this	PRON
dss-287	722	2	causes	cause	VERB
dss-287	722	3	the	the	DET
dss-287	722	4	primary	primary	ADJ
dss-287	722	5	mirror	mirror	NOUN
dss-287	722	6	's	's	PART
dss-287	722	7	diameter	diameter	NOUN
dss-287	722	8	to	to	PART
dss-287	722	9	be	be	AUX
dss-287	722	10	roughly	roughly	ADV
dss-287	722	11	the	the	DET
dss-287	722	12	same	same	ADJ
dss-287	722	13	as	as	ADP
dss-287	722	14	the	the	DET
dss-287	722	15	corrector	corrector	NOUN
dss-287	722	16	's	's	PART
dss-287	722	17	.	.	PUNCT
dss-287	723	1	for	for	ADP
dss-287	723	2	visual	visual	ADJ
dss-287	723	3	use	use	NOUN
dss-287	723	4	,	,	PUNCT
dss-287	723	5	a	a	DET
dss-287	723	6	large	large	ADJ
dss-287	723	7	obstruction	obstruction	NOUN
dss-287	723	8	reduces	reduce	VERB
dss-287	723	9	contrast	contrast	NOUN
dss-287	723	10	by	by	ADP
dss-287	723	11	spreading	spread	VERB
dss-287	723	12	light	light	NOUN
dss-287	723	13	into	into	ADP
dss-287	723	14	diffraction	diffraction	NOUN
dss-287	723	15	rings	ring	NOUN
dss-287	723	16	,	,	PUNCT
dss-287	723	17	which	which	PRON
dss-287	723	18	is	be	AUX
dss-287	723	19	undesirable	undesirable	ADJ
dss-287	723	20	.	.	PUNCT
dss-287	724	1	however	however	ADV
dss-287	724	2	,	,	PUNCT
dss-287	724	3	in	in	ADP
dss-287	724	4	photography	photography	NOUN
dss-287	724	5	,	,	PUNCT
dss-287	724	6	a	a	DET
dss-287	724	7	55	55	NUM
dss-287	724	8	%	%	NOUN
dss-287	724	9	central	central	ADJ
dss-287	724	10	obstruction	obstruction	NOUN
dss-287	724	11	(	(	PUNCT
dss-287	724	12	present	present	ADJ
dss-287	724	13	in	in	ADP
dss-287	724	14	this	this	DET
dss-287	724	15	system	system	NOUN
dss-287	724	16	)	)	PUNCT
dss-287	724	17	is	be	AUX
dss-287	724	18	acceptable	acceptable	ADJ
dss-287	724	19	since	since	SCONJ
dss-287	724	20	over	over	ADP
dss-287	724	21	80	80	NUM
dss-287	724	22	%	%	NOUN
dss-287	724	23	of	of	ADP
dss-287	724	24	the	the	DET
dss-287	724	25	light	light	NOUN
dss-287	724	26	remains	remain	VERB
dss-287	724	27	concentrated	concentrated	ADJ
dss-287	724	28	in	in	ADP
dss-287	724	29	the	the	DET
dss-287	724	30	airy	airy	ADJ
dss-287	724	31	disk	disk	NOUN
dss-287	724	32	and	and	CCONJ
dss-287	724	33	first	first	ADJ
dss-287	724	34	diffraction	diffraction	NOUN
dss-287	724	35	ring	ring	NOUN
dss-287	724	36	,	,	PUNCT
dss-287	724	37	well	well	ADV
dss-287	724	38	within	within	ADP
dss-287	724	39	photographic	photographic	ADJ
dss-287	724	40	sharpness	sharpness	NOUN
dss-287	724	41	limits	limit	NOUN
dss-287	724	42	.	.	PUNCT
dss-287	725	1	additionally	additionally	ADV
dss-287	725	2	,	,	PUNCT
dss-287	725	3	the	the	DET
dss-287	725	4	large	large	ADJ
dss-287	725	5	secondary	secondary	ADJ
dss-287	725	6	mirror	mirror	NOUN
dss-287	725	7	eliminates	eliminate	VERB
dss-287	725	8	the	the	DET
dss-287	725	9	need	need	NOUN
dss-287	725	10	for	for	ADP
dss-287	725	11	baffling	baffle	VERB
dss-287	725	12	by	by	ADP
dss-287	725	13	blocking	block	VERB
dss-287	725	14	stray	stray	ADJ
dss-287	725	15	light	light	NOUN
dss-287	725	16	due	due	ADP
dss-287	725	17	to	to	ADP
dss-287	725	18	its	its	PRON
dss-287	725	19	size	size	NOUN
dss-287	725	20	and	and	CCONJ
dss-287	725	21	the	the	DET
dss-287	725	22	long	long	ADJ
dss-287	725	23	tube	tube	NOUN
dss-287	725	24	design	design	NOUN
dss-287	725	25	[	[	X
dss-287	725	26	3	3	NUM
dss-287	725	27	]	]	PUNCT
dss-287	725	28	.	.	PUNCT
dss-287	726	1	fig	fig	NOUN
dss-287	726	2	.	.	PUNCT
dss-287	727	1	15	15	NUM
dss-287	727	2	spot	spot	NOUN
dss-287	727	3	diagrams	diagram	NOUN
dss-287	727	4	for	for	ADP
dss-287	727	5	a	a	DET
dss-287	727	6	flat	flat	ADJ
dss-287	727	7	-	-	PUNCT
dss-287	727	8	field	field	NOUN
dss-287	727	9	200	200	NUM
dss-287	727	10	mm	mm	NOUN
dss-287	727	11	f/4	f/4	NOUN
dss-287	727	12	schmidt	schmidt	ADJ
dss-287	727	13	-	-	PUNCT
dss-287	727	14	cassegrain	cassegrain	NOUN
dss-287	727	15	telescope	telescope	NOUN
dss-287	727	16	[	[	X
dss-287	727	17	3	3	NUM
dss-287	727	18	]	]	ADJ
dss-287	727	19	dss	dss	NOUN
dss-287	727	20	vol	vol	NOUN
dss-287	727	21	.	.	PROPN
dss-287	727	22	6	6	NUM
dss-287	727	23	,	,	PUNCT
dss-287	727	24	no	no	INTJ
dss-287	727	25	.	.	NOUN
dss-287	727	26	1	1	NUM
dss-287	727	27	,	,	PUNCT
dss-287	727	28	2025	2025	NUM
dss-287	727	29	,	,	PUNCT
dss-287	727	30	pp.49	pp.49	NOUN
dss-287	727	31	-	-	SYM
dss-287	727	32	90	90	NUM
dss-287	727	33	78	78	NUM
dss-287	727	34	fig	fig	NOUN
dss-287	727	35	.	.	PUNCT
dss-287	728	1	15	15	NUM
dss-287	728	2	shows	show	VERB
dss-287	728	3	spot	spot	NOUN
dss-287	728	4	diagrams	diagram	NOUN
dss-287	728	5	for	for	ADP
dss-287	728	6	this	this	DET
dss-287	728	7	flat	flat	ADJ
dss-287	728	8	-	-	PUNCT
dss-287	728	9	field	field	NOUN
dss-287	728	10	200	200	NUM
dss-287	728	11	mm	mm	NOUN
dss-287	728	12	f/4	f/4	NOUN
dss-287	728	13	schmidt	schmidt	ADJ
dss-287	728	14	-	-	PUNCT
dss-287	728	15	cassegrain	cassegrain	NOUN
dss-287	728	16	telescope	telescope	NOUN
dss-287	728	17	.	.	PUNCT
dss-287	729	1	it	it	PRON
dss-287	729	2	can	can	AUX
dss-287	729	3	be	be	AUX
dss-287	729	4	seen	see	VERB
dss-287	729	5	that	that	SCONJ
dss-287	729	6	this	this	DET
dss-287	729	7	design	design	NOUN
dss-287	729	8	meets	meet	VERB
dss-287	729	9	the	the	DET
dss-287	729	10	0.025	0.025	NUM
dss-287	729	11	mm	mm	NOUN
dss-287	729	12	criterion	criterion	NOUN
dss-287	729	13	over	over	ADP
dss-287	729	14	the	the	DET
dss-287	729	15	entire	entire	ADJ
dss-287	729	16	60	60	NUM
dss-287	729	17	mm	mm	NOUN
dss-287	729	18	diameter	diameter	NOUN
dss-287	729	19	flat	flat	ADJ
dss-287	729	20	field	field	NOUN
dss-287	729	21	under	under	ADP
dss-287	729	22	consideration	consideration	NOUN
dss-287	729	23	,	,	PUNCT
dss-287	729	24	and	and	CCONJ
dss-287	729	25	that	that	SCONJ
dss-287	729	26	lateral	lateral	ADJ
dss-287	729	27	color	color	NOUN
dss-287	729	28	is	be	AUX
dss-287	729	29	within	within	ADP
dss-287	729	30	the	the	DET
dss-287	729	31	same	same	ADJ
dss-287	729	32	limit	limit	NOUN
dss-287	729	33	as	as	ADV
dss-287	729	34	well	well	ADV
dss-287	729	35	.	.	PUNCT
dss-287	730	1	6.7	6.7	NUM
dss-287	730	2	image	image	NOUN
dss-287	730	3	quality	quality	NOUN
dss-287	730	4	in	in	ADP
dss-287	730	5	maksutov	maksutov	NOUN
dss-287	730	6	-	-	PUNCT
dss-287	730	7	cassegrain	cassegrain	NOUN
dss-287	730	8	type	type	NOUN
dss-287	730	9	catadioptric	catadioptric	NOUN
dss-287	730	10	telescopes	telescope	NOUN
dss-287	730	11	john	john	PROPN
dss-287	730	12	gregory	gregory	PROPN
dss-287	730	13	introduced	introduce	VERB
dss-287	730	14	the	the	DET
dss-287	730	15	f/23	f/23	PROPN
dss-287	730	16	gregory	gregory	PROPN
dss-287	730	17	maksutov	maksutov	PROPN
dss-287	730	18	-	-	PUNCT
dss-287	730	19	cassegrain	cassegrain	NOUN
dss-287	730	20	,	,	PUNCT
dss-287	730	21	a	a	DET
dss-287	730	22	compact	compact	ADJ
dss-287	730	23	catadioptric	catadioptric	NOUN
dss-287	730	24	telescope	telescope	NOUN
dss-287	730	25	with	with	ADP
dss-287	730	26	spherical	spherical	ADJ
dss-287	730	27	optics	optic	NOUN
dss-287	730	28	and	and	CCONJ
dss-287	730	29	an	an	DET
dss-287	730	30	aluminized	aluminized	ADJ
dss-287	730	31	secondary	secondary	ADJ
dss-287	730	32	spot	spot	NOUN
dss-287	730	33	on	on	ADP
dss-287	730	34	the	the	DET
dss-287	730	35	meniscus	meniscus	NOUN
dss-287	730	36	corrector	corrector	NOUN
dss-287	730	37	,	,	PUNCT
dss-287	730	38	making	make	VERB
dss-287	730	39	the	the	DET
dss-287	730	40	design	design	NOUN
dss-287	730	41	accessible	accessible	ADJ
dss-287	730	42	to	to	ADP
dss-287	730	43	amateurs	amateur	NOUN
dss-287	730	44	.	.	PUNCT
dss-287	731	1	his	his	PRON
dss-287	731	2	f/15	f/15	PROPN
dss-287	731	3	version	version	NOUN
dss-287	731	4	improved	improve	VERB
dss-287	731	5	color	color	NOUN
dss-287	731	6	correction	correction	NOUN
dss-287	731	7	,	,	PUNCT
dss-287	731	8	requiring	require	VERB
dss-287	731	9	slight	slight	ADJ
dss-287	731	10	aspherization	aspherization	NOUN
dss-287	731	11	.	.	PUNCT
dss-287	732	1	later	later	ADV
dss-287	732	2	adaptations	adaptation	NOUN
dss-287	732	3	refined	refine	VERB
dss-287	732	4	the	the	DET
dss-287	732	5	design	design	NOUN
dss-287	732	6	for	for	ADP
dss-287	732	7	both	both	DET
dss-287	732	8	visual	visual	ADJ
dss-287	732	9	use	use	NOUN
dss-287	732	10	and	and	CCONJ
dss-287	732	11	astrophotography	astrophotography	NOUN
dss-287	732	12	.	.	PUNCT
dss-287	733	1	this	this	DET
dss-287	733	2	section	section	NOUN
dss-287	733	3	reviews	review	VERB
dss-287	733	4	several	several	ADJ
dss-287	733	5	200	200	NUM
dss-287	733	6	mm	mm	NOUN
dss-287	733	7	aperture	aperture	NOUN
dss-287	733	8	models	model	NOUN
dss-287	733	9	and	and	CCONJ
dss-287	733	10	assesses	assess	VERB
dss-287	733	11	their	their	PRON
dss-287	733	12	optical	optical	ADJ
dss-287	733	13	performance	performance	NOUN
dss-287	733	14	,	,	PUNCT
dss-287	733	15	as	as	SCONJ
dss-287	733	16	presented	present	VERB
dss-287	733	17	in	in	ADP
dss-287	733	18	reference	reference	NOUN
dss-287	733	19	[	[	X
dss-287	733	20	3	3	NUM
dss-287	733	21	]	]	PUNCT
dss-287	733	22	.	.	PUNCT
dss-287	734	1	in	in	ADP
dss-287	734	2	this	this	DET
dss-287	734	3	regard	regard	NOUN
dss-287	734	4	,	,	PUNCT
dss-287	734	5	fig	fig	NOUN
dss-287	734	6	.	.	PUNCT
dss-287	735	1	16	16	NUM
dss-287	735	2	presents	present	VERB
dss-287	735	3	six	six	NUM
dss-287	735	4	representative	representative	ADJ
dss-287	735	5	maksutov	maksutov	NOUN
dss-287	735	6	systems	system	NOUN
dss-287	735	7	,	,	PUNCT
dss-287	735	8	providing	provide	VERB
dss-287	735	9	a	a	DET
dss-287	735	10	basis	basis	NOUN
dss-287	735	11	to	to	PART
dss-287	735	12	discuss	discuss	VERB
dss-287	735	13	degrees	degree	NOUN
dss-287	735	14	of	of	ADP
dss-287	735	15	freedom	freedom	NOUN
dss-287	735	16	the	the	DET
dss-287	735	17	adjustable	adjustable	ADJ
dss-287	735	18	optical	optical	ADJ
dss-287	735	19	parameters	parameter	NOUN
dss-287	735	20	like	like	ADP
dss-287	735	21	curvature	curvature	NOUN
dss-287	735	22	,	,	PUNCT
dss-287	735	23	spacing	spacing	NOUN
dss-287	735	24	,	,	PUNCT
dss-287	735	25	thickness	thickness	NOUN
dss-287	735	26	,	,	PUNCT
dss-287	735	27	glass	glass	NOUN
dss-287	735	28	type	type	NOUN
dss-287	735	29	,	,	PUNCT
dss-287	735	30	or	or	CCONJ
dss-287	735	31	aspheric	aspheric	ADJ
dss-287	735	32	surfaces	surface	NOUN
dss-287	735	33	.	.	PUNCT
dss-287	736	1	effective	effective	ADJ
dss-287	736	2	image	image	NOUN
dss-287	736	3	correction	correction	NOUN
dss-287	736	4	requires	require	VERB
dss-287	736	5	at	at	ADV
dss-287	736	6	least	least	ADJ
dss-287	736	7	as	as	ADP
dss-287	736	8	many	many	ADJ
dss-287	736	9	degrees	degree	NOUN
dss-287	736	10	of	of	ADP
dss-287	736	11	freedom	freedom	NOUN
dss-287	736	12	as	as	SCONJ
dss-287	736	13	the	the	DET
dss-287	736	14	aberrations	aberration	NOUN
dss-287	736	15	being	be	AUX
dss-287	736	16	corrected	correct	VERB
dss-287	736	17	.	.	PUNCT
dss-287	737	1	the	the	DET
dss-287	737	2	gregory	gregory	PROPN
dss-287	737	3	maksutov	maksutov	PROPN
dss-287	737	4	-	-	PUNCT
dss-287	737	5	cassegrain	cassegrain	NOUN
dss-287	737	6	(	(	PUNCT
dss-287	737	7	fig	fig	NOUN
dss-287	737	8	.	.	PUNCT
dss-287	737	9	16	16	NUM
dss-287	737	10	)	)	PUNCT
dss-287	737	11	shows	show	VERB
dss-287	737	12	notable	notable	ADJ
dss-287	737	13	coma	coma	NOUN
dss-287	737	14	and	and	CCONJ
dss-287	737	15	astigmatism	astigmatism	NOUN
dss-287	737	16	,	,	PUNCT
dss-287	737	17	as	as	ADP
dss-287	737	18	evident	evident	ADJ
dss-287	737	19	in	in	ADP
dss-287	737	20	the	the	DET
dss-287	737	21	spot	spot	NOUN
dss-287	737	22	diagrams	diagram	NOUN
dss-287	737	23	(	(	PUNCT
dss-287	737	24	fig	fig	NOUN
dss-287	737	25	.	.	PUNCT
dss-287	737	26	17	17	NUM
dss-287	737	27	)	)	PUNCT
dss-287	737	28	.	.	PUNCT
dss-287	738	1	these	these	DET
dss-287	738	2	aberrations	aberration	NOUN
dss-287	738	3	ca	can	AUX
dss-287	738	4	n't	not	PART
dss-287	738	5	be	be	AUX
dss-287	738	6	corrected	correct	VERB
dss-287	738	7	in	in	ADP
dss-287	738	8	the	the	DET
dss-287	738	9	mentioned	mention	VERB
dss-287	738	10	design	design	NOUN
dss-287	738	11	because	because	SCONJ
dss-287	738	12	the	the	DET
dss-287	738	13	secondary	secondary	ADJ
dss-287	738	14	mirror	mirror	NOUN
dss-287	738	15	shares	share	VERB
dss-287	738	16	the	the	DET
dss-287	738	17	curvature	curvature	NOUN
dss-287	738	18	of	of	ADP
dss-287	738	19	the	the	DET
dss-287	738	20	corrector	corrector	NOUN
dss-287	738	21	’s	’s	PART
dss-287	738	22	back	back	ADJ
dss-287	738	23	surface	surface	NOUN
dss-287	738	24	.	.	PUNCT
dss-287	739	1	adding	add	VERB
dss-287	739	2	a	a	DET
dss-287	739	3	degree	degree	NOUN
dss-287	739	4	of	of	ADP
dss-287	739	5	freedom	freedom	NOUN
dss-287	739	6	,	,	PUNCT
dss-287	739	7	such	such	ADJ
dss-287	739	8	as	as	ADP
dss-287	739	9	an	an	DET
dss-287	739	10	independently	independently	ADV
dss-287	739	11	curved	curved	ADJ
dss-287	739	12	secondary	secondary	ADJ
dss-287	739	13	,	,	PUNCT
dss-287	739	14	is	be	AUX
dss-287	739	15	necessary	necessary	ADJ
dss-287	739	16	for	for	ADP
dss-287	739	17	improvement	improvement	NOUN
dss-287	739	18	.	.	PUNCT
dss-287	740	1	one	one	NUM
dss-287	740	2	solution	solution	NOUN
dss-287	740	3	,	,	PUNCT
dss-287	740	4	used	use	VERB
dss-287	740	5	by	by	ADP
dss-287	740	6	some	some	DET
dss-287	740	7	manufacturers	manufacturer	NOUN
dss-287	740	8	,	,	PUNCT
dss-287	740	9	involves	involve	VERB
dss-287	740	10	grinding	grind	VERB
dss-287	740	11	the	the	DET
dss-287	740	12	corrector	corrector	NOUN
dss-287	740	13	center	center	NOUN
dss-287	740	14	differently	differently	ADV
dss-287	740	15	,	,	PUNCT
dss-287	740	16	but	but	CCONJ
dss-287	740	17	this	this	PRON
dss-287	740	18	is	be	AUX
dss-287	740	19	complex	complex	ADJ
dss-287	740	20	for	for	ADP
dss-287	740	21	amateurs	amateur	NOUN
dss-287	740	22	.	.	PUNCT
dss-287	741	1	a	a	DET
dss-287	741	2	simpler	simple	ADJ
dss-287	741	3	method	method	NOUN
dss-287	741	4	is	be	AUX
dss-287	741	5	the	the	DET
dss-287	741	6	rumak	rumak	PROPN
dss-287	741	7	design	design	NOUN
dss-287	741	8	(	(	PUNCT
dss-287	741	9	introduced	introduce	VERB
dss-287	741	10	by	by	ADP
dss-287	741	11	harrie	harrie	PROPN
dss-287	741	12	rutten	rutten	PROPN
dss-287	741	13	)	)	PUNCT
dss-287	741	14	,	,	PUNCT
dss-287	741	15	which	which	PRON
dss-287	741	16	attaches	attach	VERB
dss-287	741	17	a	a	DET
dss-287	741	18	separate	separate	ADJ
dss-287	741	19	convex	convex	NOUN
dss-287	741	20	secondary	secondary	ADJ
dss-287	741	21	.	.	PUNCT
dss-287	742	1	also	also	ADV
dss-287	742	2	,	,	PUNCT
dss-287	742	3	an	an	DET
dss-287	742	4	f/15	f/15	NOUN
dss-287	742	5	system	system	NOUN
dss-287	742	6	,	,	PUNCT
dss-287	742	7	the	the	DET
dss-287	742	8	rumak	rumak	NOUN
dss-287	742	9	offers	offer	VERB
dss-287	742	10	better	well	ADJ
dss-287	742	11	off	off	ADP
dss-287	742	12	-	-	PUNCT
dss-287	742	13	axis	axis	NOUN
dss-287	742	14	performance	performance	NOUN
dss-287	742	15	,	,	PUNCT
dss-287	742	16	improved	improve	VERB
dss-287	742	17	color	color	NOUN
dss-287	742	18	correction	correction	NOUN
dss-287	742	19	,	,	PUNCT
dss-287	742	20	and	and	CCONJ
dss-287	742	21	a	a	DET
dss-287	742	22	flatter	flatter	ADJ
dss-287	742	23	field	field	NOUN
dss-287	742	24	(	(	PUNCT
dss-287	742	25	fig	fig	NOUN
dss-287	742	26	.	.	PUNCT
dss-287	742	27	17	17	NUM
dss-287	742	28	)	)	PUNCT
dss-287	742	29	.	.	PUNCT
dss-287	743	1	both	both	DET
dss-287	743	2	systems	system	NOUN
dss-287	743	3	perform	perform	VERB
dss-287	743	4	near	near	ADP
dss-287	743	5	the	the	DET
dss-287	743	6	diffraction	diffraction	NOUN
dss-287	743	7	limit	limit	NOUN
dss-287	743	8	on	on	ADP
dss-287	743	9	-	-	PUNCT
dss-287	743	10	axis	axis	NOUN
dss-287	743	11	in	in	ADP
dss-287	743	12	red	red	ADJ
dss-287	743	13	,	,	PUNCT
dss-287	743	14	green	green	ADJ
dss-287	743	15	,	,	PUNCT
dss-287	743	16	and	and	CCONJ
dss-287	743	17	blue	blue	ADJ
dss-287	743	18	light	light	NOUN
dss-287	743	19	,	,	PUNCT
dss-287	743	20	but	but	CCONJ
dss-287	743	21	the	the	DET
dss-287	743	22	rumak	rumak	NOUN
dss-287	743	23	clearly	clearly	ADV
dss-287	743	24	outperforms	outperform	VERB
dss-287	743	25	off	off	ADP
dss-287	743	26	-	-	PUNCT
dss-287	743	27	axis	axis	NOUN
dss-287	743	28	.	.	PUNCT
dss-287	744	1	the	the	DET
dss-287	744	2	gregory	gregory	PROPN
dss-287	744	3	design	design	PROPN
dss-287	744	4	also	also	ADV
dss-287	744	5	suffers	suffer	VERB
dss-287	744	6	from	from	ADP
dss-287	744	7	considerable	considerable	ADJ
dss-287	744	8	spherochromatism	spherochromatism	NOUN
dss-287	744	9	.	.	PUNCT
dss-287	745	1	the	the	DET
dss-287	745	2	rumak	rumak	PROPN
dss-287	745	3	design	design	NOUN
dss-287	745	4	also	also	ADV
dss-287	745	5	has	have	VERB
dss-287	745	6	drawbacks	drawback	NOUN
dss-287	745	7	:	:	PUNCT
dss-287	745	8	it	it	PRON
dss-287	745	9	requires	require	VERB
dss-287	745	10	a	a	DET
dss-287	745	11	longer	long	ADJ
dss-287	745	12	optical	optical	ADJ
dss-287	745	13	tube	tube	NOUN
dss-287	745	14	and	and	CCONJ
dss-287	745	15	a	a	DET
dss-287	745	16	larger	large	ADJ
dss-287	745	17	secondary	secondary	ADJ
dss-287	745	18	mirror	mirror	NOUN
dss-287	745	19	compared	compare	VERB
dss-287	745	20	to	to	ADP
dss-287	745	21	the	the	DET
dss-287	745	22	gregory	gregory	PROPN
dss-287	745	23	maksutov	maksutov	PROPN
dss-287	745	24	.	.	PUNCT
dss-287	746	1	designing	design	VERB
dss-287	746	2	a	a	DET
dss-287	746	3	rumak	rumak	ADJ
dss-287	746	4	-	-	PUNCT
dss-287	746	5	type	type	NOUN
dss-287	746	6	system	system	NOUN
dss-287	746	7	with	with	ADP
dss-287	746	8	the	the	DET
dss-287	746	9	same	same	ADJ
dss-287	746	10	tube	tube	NOUN
dss-287	746	11	length	length	NOUN
dss-287	746	12	as	as	SCONJ
dss-287	746	13	the	the	DET
dss-287	746	14	gregory	gregory	PROPN
dss-287	746	15	is	be	AUX
dss-287	746	16	feasible	feasible	ADJ
dss-287	746	17	,	,	PUNCT
dss-287	746	18	but	but	CCONJ
dss-287	746	19	it	it	PRON
dss-287	746	20	demands	demand	VERB
dss-287	746	21	an	an	DET
dss-287	746	22	additional	additional	ADJ
dss-287	746	23	degree	degree	NOUN
dss-287	746	24	of	of	ADP
dss-287	746	25	freedom	freedom	NOUN
dss-287	746	26	.	.	PUNCT
dss-287	747	1	this	this	PRON
dss-287	747	2	can	can	AUX
dss-287	747	3	be	be	AUX
dss-287	747	4	achieved	achieve	VERB
dss-287	747	5	by	by	ADP
dss-287	747	6	aspherizing	aspherize	VERB
dss-287	747	7	one	one	NUM
dss-287	747	8	of	of	ADP
dss-287	747	9	the	the	DET
dss-287	747	10	optical	optical	ADJ
dss-287	747	11	surfaces	surface	NOUN
dss-287	747	12	either	either	CCONJ
dss-287	747	13	the	the	DET
dss-287	747	14	corrector	corrector	NOUN
dss-287	747	15	,	,	PUNCT
dss-287	747	16	primary	primary	NOUN
dss-287	747	17	,	,	PUNCT
dss-287	747	18	or	or	CCONJ
dss-287	747	19	secondary	secondary	ADJ
dss-287	747	20	mirror	mirror	NOUN
dss-287	747	21	.	.	PUNCT
dss-287	748	1	however	however	ADV
dss-287	748	2	,	,	PUNCT
dss-287	748	3	producing	produce	VERB
dss-287	748	4	aspheric	aspheric	ADJ
dss-287	748	5	surfaces	surface	NOUN
dss-287	748	6	is	be	AUX
dss-287	748	7	complex	complex	ADJ
dss-287	748	8	and	and	CCONJ
dss-287	748	9	typically	typically	ADV
dss-287	748	10	impractical	impractical	ADJ
dss-287	748	11	for	for	ADP
dss-287	748	12	most	most	ADJ
dss-287	748	13	applications	application	NOUN
dss-287	748	14	,	,	PUNCT
dss-287	748	15	making	make	VERB
dss-287	748	16	this	this	DET
dss-287	748	17	solution	solution	NOUN
dss-287	748	18	less	less	ADV
dss-287	748	19	appealing	appealing	ADJ
dss-287	748	20	[	[	X
dss-287	748	21	3	3	NUM
dss-287	748	22	]	]	PUNCT
dss-287	748	23	.	.	PUNCT
dss-287	749	1	additional	additional	ADJ
dss-287	749	2	design	design	NOUN
dss-287	749	3	flexibility	flexibility	NOUN
dss-287	749	4	can	can	AUX
dss-287	749	5	be	be	AUX
dss-287	749	6	achieved	achieve	VERB
dss-287	749	7	by	by	ADP
dss-287	749	8	adjusting	adjust	VERB
dss-287	749	9	the	the	DET
dss-287	749	10	spacing	spacing	NOUN
dss-287	749	11	between	between	ADP
dss-287	749	12	the	the	DET
dss-287	749	13	corrector	corrector	NOUN
dss-287	749	14	and	and	CCONJ
dss-287	749	15	secondary	secondary	ADJ
dss-287	749	16	mirror	mirror	NOUN
dss-287	749	17	,	,	PUNCT
dss-287	749	18	especially	especially	ADV
dss-287	749	19	in	in	ADP
dss-287	749	20	fast	fast	ADJ
dss-287	749	21	maksutov	maksutov	NOUN
dss-287	749	22	-	-	PUNCT
dss-287	749	23	cassegrain	cassegrain	NOUN
dss-287	749	24	systems	system	NOUN
dss-287	749	25	(	(	PUNCT
dss-287	749	26	faster	fast	ADV
dss-287	749	27	than	than	ADP
dss-287	749	28	f/8	f/8	NOUN
dss-287	749	29	)	)	PUNCT
dss-287	749	30	with	with	ADP
dss-287	749	31	all	all	ADV
dss-287	749	32	-	-	PUNCT
dss-287	749	33	spherical	spherical	ADJ
dss-287	749	34	surfaces	surface	NOUN
dss-287	749	35	.	.	PUNCT
dss-287	750	1	this	this	DET
dss-287	750	2	approach	approach	NOUN
dss-287	750	3	is	be	AUX
dss-287	750	4	used	use	VERB
dss-287	750	5	in	in	ADP
dss-287	750	6	designs	design	NOUN
dss-287	750	7	like	like	ADP
dss-287	750	8	the	the	DET
dss-287	750	9	simak	simak	NOUN
dss-287	750	10	and	and	CCONJ
dss-287	750	11	sigler	sigler	PROPN
dss-287	750	12	(	(	PUNCT
dss-287	750	13	fig	fig	NOUN
dss-287	750	14	.	.	PUNCT
dss-287	750	15	18	18	NUM
dss-287	750	16	)	)	PUNCT
dss-287	750	17	.	.	PUNCT
dss-287	751	1	however	however	ADV
dss-287	751	2	,	,	PUNCT
dss-287	751	3	for	for	ADP
dss-287	751	4	systems	system	NOUN
dss-287	751	5	faster	fast	ADV
dss-287	751	6	than	than	ADP
dss-287	751	7	f/4	f/4	ADJ
dss-287	751	8	,	,	PUNCT
dss-287	751	9	spherical	spherical	ADJ
dss-287	751	10	surfaces	surface	NOUN
dss-287	751	11	alone	alone	ADV
dss-287	751	12	lead	lead	VERB
dss-287	751	13	to	to	ADP
dss-287	751	14	excessive	excessive	ADJ
dss-287	751	15	aberrations	aberration	NOUN
dss-287	751	16	.	.	PUNCT
dss-287	752	1	in	in	ADP
dss-287	752	2	the	the	DET
dss-287	752	3	f/2.5	f/2.5	PROPN
dss-287	752	4	companar	companar	NOUN
dss-287	752	5	,	,	PUNCT
dss-287	752	6	klaas	klaas	PROPN
dss-287	752	7	compaan	compaan	PROPN
dss-287	752	8	(	(	PUNCT
dss-287	752	9	fig	fig	NOUN
dss-287	752	10	.	.	PUNCT
dss-287	753	1	19	19	NUM
dss-287	753	2	)	)	PUNCT
dss-287	753	3	minimized	minimized	ADJ
dss-287	753	4	chromatic	chromatic	ADJ
dss-287	753	5	aberration	aberration	NOUN
dss-287	753	6	by	by	ADP
dss-287	753	7	adding	add	VERB
dss-287	753	8	a	a	DET
dss-287	753	9	weak	weak	ADJ
dss-287	753	10	positive	positive	ADJ
dss-287	753	11	lens	lens	NOUN
dss-287	753	12	in	in	ADP
dss-287	753	13	front	front	NOUN
dss-287	753	14	of	of	ADP
dss-287	753	15	the	the	DET
dss-287	753	16	corrector	corrector	NOUN
dss-287	753	17	.	.	PUNCT
dss-287	754	1	to	to	PART
dss-287	754	2	correct	correct	VERB
dss-287	754	3	residual	residual	ADJ
dss-287	754	4	spherical	spherical	ADJ
dss-287	754	5	aberration	aberration	NOUN
dss-287	754	6	,	,	PUNCT
dss-287	754	7	the	the	DET
dss-287	754	8	lens	lens	NOUN
dss-287	754	9	was	be	AUX
dss-287	754	10	slightly	slightly	ADV
dss-287	754	11	aspherized	aspherize	VERB
dss-287	754	12	a	a	DET
dss-287	754	13	step	step	NOUN
dss-287	754	14	only	only	ADV
dss-287	754	15	necessary	necessary	ADJ
dss-287	754	16	for	for	SCONJ
dss-287	754	17	systems	system	NOUN
dss-287	754	18	faster	fast	ADV
dss-287	754	19	than	than	ADP
dss-287	754	20	f/2.85	f/2.85	NOUN
dss-287	755	1	[	[	X
dss-287	755	2	3	3	NUM
dss-287	755	3	]	]	PUNCT
dss-287	755	4	.	.	PUNCT
dss-287	756	1	the	the	DET
dss-287	756	2	characteristics	characteristic	NOUN
dss-287	756	3	(	(	PUNCT
dss-287	756	4	radius	radius	NOUN
dss-287	756	5	of	of	ADP
dss-287	756	6	curvature	curvature	NOUN
dss-287	756	7	,	,	PUNCT
dss-287	756	8	axial	axial	ADJ
dss-287	756	9	thickness	thickness	NOUN
dss-287	756	10	,	,	PUNCT
dss-287	756	11	medium	medium	ADJ
dss-287	756	12	type	type	NOUN
dss-287	756	13	,	,	PUNCT
dss-287	756	14	focal	focal	ADJ
dss-287	756	15	length	length	NOUN
dss-287	756	16	)	)	PUNCT
dss-287	756	17	of	of	ADP
dss-287	756	18	the	the	DET
dss-287	756	19	six	six	NUM
dss-287	756	20	maksutov	maksutov	NOUN
dss-287	756	21	systems	system	NOUN
dss-287	756	22	are	be	AUX
dss-287	756	23	given	give	VERB
dss-287	756	24	in	in	ADP
dss-287	756	25	table	table	NOUN
dss-287	756	26	5	5	NUM
dss-287	756	27	,	,	PUNCT
dss-287	756	28	while	while	SCONJ
dss-287	756	29	their	their	PRON
dss-287	756	30	spot	spot	NOUN
dss-287	756	31	diagrams	diagram	NOUN
dss-287	756	32	are	be	AUX
dss-287	756	33	shown	show	VERB
dss-287	756	34	in	in	ADP
dss-287	756	35	figs	fig	NOUN
dss-287	756	36	.	.	PUNCT
dss-287	757	1	17	17	NUM
dss-287	757	2	,	,	PUNCT
dss-287	757	3	18	18	NUM
dss-287	757	4	and	and	CCONJ
dss-287	757	5	19	19	NUM
dss-287	757	6	.	.	PUNCT
dss-287	758	1	among	among	ADP
dss-287	758	2	the	the	DET
dss-287	758	3	maksutov	maksutov	NOUN
dss-287	758	4	-	-	PUNCT
dss-287	758	5	cassegrain	cassegrain	NOUN
dss-287	758	6	telescopes	telescope	NOUN
dss-287	758	7	reviewed	review	VERB
dss-287	758	8	,	,	PUNCT
dss-287	758	9	only	only	ADV
dss-287	758	10	the	the	DET
dss-287	758	11	companar	companar	NOUN
dss-287	758	12	features	feature	VERB
dss-287	758	13	a	a	DET
dss-287	758	14	flat	flat	ADJ
dss-287	758	15	focal	focal	ADJ
dss-287	758	16	surface	surface	NOUN
dss-287	758	17	,	,	PUNCT
dss-287	758	18	having	having	AUX
dss-287	758	19	been	be	AUX
dss-287	758	20	designed	design	VERB
dss-287	758	21	specifically	specifically	ADV
dss-287	758	22	for	for	ADP
dss-287	758	23	astrophotography	astrophotography	NOUN
dss-287	758	24	.	.	PUNCT
dss-287	759	1	other	other	ADJ
dss-287	759	2	models	model	NOUN
dss-287	759	3	are	be	AUX
dss-287	759	4	suitable	suitable	ADJ
dss-287	759	5	for	for	ADP
dss-287	759	6	both	both	CCONJ
dss-287	759	7	photographic	photographic	ADJ
dss-287	759	8	and	and	CCONJ
dss-287	759	9	visual	visual	ADJ
dss-287	759	10	use	use	NOUN
dss-287	759	11	,	,	PUNCT
dss-287	759	12	where	where	SCONJ
dss-287	759	13	keeping	keep	VERB
dss-287	759	14	the	the	DET
dss-287	759	15	secondary	secondary	ADJ
dss-287	759	16	mirror	mirror	NOUN
dss-287	759	17	small	small	ADJ
dss-287	759	18	is	be	AUX
dss-287	759	19	important	important	ADJ
dss-287	759	20	to	to	PART
dss-287	759	21	reduce	reduce	VERB
dss-287	759	22	central	central	ADJ
dss-287	759	23	obstruction	obstruction	NOUN
dss-287	759	24	.	.	PUNCT
dss-287	760	1	the	the	DET
dss-287	760	2	companar	companar	PROPN
dss-287	760	3	achieves	achieve	VERB
dss-287	760	4	its	its	PRON
dss-287	760	5	flat	flat	ADJ
dss-287	760	6	field	field	NOUN
dss-287	760	7	by	by	ADP
dss-287	760	8	nearly	nearly	ADV
dss-287	760	9	matching	match	VERB
dss-287	760	10	the	the	DET
dss-287	760	11	radii	radius	NOUN
dss-287	760	12	of	of	ADP
dss-287	760	13	curvature	curvature	NOUN
dss-287	760	14	of	of	ADP
dss-287	760	15	the	the	DET
dss-287	760	16	primary	primary	ADJ
dss-287	760	17	and	and	CCONJ
dss-287	760	18	secondary	secondary	ADJ
dss-287	760	19	mirrors	mirror	NOUN
dss-287	760	20	.	.	PUNCT
dss-287	761	1	however	however	ADV
dss-287	761	2	,	,	PUNCT
dss-287	761	3	this	this	PRON
dss-287	761	4	results	result	VERB
dss-287	761	5	in	in	ADP
dss-287	761	6	a	a	DET
dss-287	761	7	large	large	ADJ
dss-287	761	8	secondary	secondary	ADJ
dss-287	761	9	mirror	mirror	NOUN
dss-287	761	10	(	(	PUNCT
dss-287	761	11	60	60	NUM
dss-287	761	12	%	%	NOUN
dss-287	761	13	of	of	ADP
dss-287	761	14	the	the	DET
dss-287	761	15	aperture	aperture	NOUN
dss-287	761	16	)	)	PUNCT
dss-287	761	17	,	,	PUNCT
dss-287	761	18	causing	cause	VERB
dss-287	761	19	a	a	DET
dss-287	761	20	36	36	NUM
dss-287	761	21	%	%	NOUN
dss-287	761	22	light	light	ADJ
dss-287	761	23	loss	loss	NOUN
dss-287	761	24	at	at	ADP
dss-287	761	25	the	the	DET
dss-287	761	26	center	center	NOUN
dss-287	761	27	and	and	CCONJ
dss-287	761	28	up	up	ADP
dss-287	761	29	to	to	PART
dss-287	761	30	35	35	NUM
dss-287	761	31	%	%	NOUN
dss-287	761	32	at	at	ADP
dss-287	761	33	the	the	DET
dss-287	761	34	edges	edge	NOUN
dss-287	761	35	.	.	PUNCT
dss-287	762	1	despite	despite	SCONJ
dss-287	762	2	this	this	PRON
dss-287	762	3	,	,	PUNCT
dss-287	762	4	the	the	DET
dss-287	762	5	large	large	ADJ
dss-287	762	6	obstruction	obstruction	NOUN
dss-287	762	7	has	have	VERB
dss-287	762	8	minimal	minimal	ADJ
dss-287	762	9	effect	effect	NOUN
dss-287	762	10	on	on	ADP
dss-287	762	11	image	image	NOUN
dss-287	762	12	sharpness	sharpness	NOUN
dss-287	762	13	due	due	ADP
dss-287	762	14	to	to	ADP
dss-287	762	15	the	the	DET
dss-287	762	16	compact	compact	ADJ
dss-287	762	17	diffraction	diffraction	NOUN
dss-287	762	18	pattern	pattern	NOUN
dss-287	762	19	at	at	ADP
dss-287	762	20	f/2.5	f/2.5	PROPN
dss-287	762	21	.	.	PUNCT
dss-287	763	1	compared	compare	VERB
dss-287	763	2	to	to	ADP
dss-287	763	3	traditional	traditional	ADJ
dss-287	763	4	maksutov	maksutov	NOUN
dss-287	763	5	cameras	camera	NOUN
dss-287	763	6	,	,	PUNCT
dss-287	763	7	flat	flat	ADJ
dss-287	763	8	-	-	PUNCT
dss-287	763	9	field	field	NOUN
dss-287	763	10	designs	design	NOUN
dss-287	763	11	like	like	ADP
dss-287	763	12	the	the	DET
dss-287	763	13	companar	companar	NOUN
dss-287	763	14	are	be	AUX
dss-287	763	15	more	more	ADV
dss-287	763	16	complex	complex	ADJ
dss-287	763	17	,	,	PUNCT
dss-287	763	18	requiring	require	VERB
dss-287	763	19	larger	large	ADJ
dss-287	763	20	optics	optic	NOUN
dss-287	763	21	and	and	CCONJ
dss-287	763	22	in	in	ADP
dss-287	763	23	some	some	DET
dss-287	763	24	cases	case	NOUN
dss-287	763	25	,	,	PUNCT
dss-287	763	26	a	a	DET
dss-287	763	27	spider	spider	NOUN
dss-287	763	28	to	to	PART
dss-287	763	29	support	support	VERB
dss-287	763	30	the	the	DET
dss-287	763	31	secondary	secondary	ADJ
dss-287	763	32	mirror	mirror	NOUN
dss-287	763	33	.	.	PUNCT
dss-287	764	1	however	however	ADV
dss-287	764	2	,	,	PUNCT
dss-287	764	3	the	the	DET
dss-287	764	4	companar	companar	NOUN
dss-287	764	5	avoids	avoid	VERB
dss-287	764	6	the	the	DET
dss-287	764	7	need	need	NOUN
dss-287	764	8	for	for	ADP
dss-287	764	9	a	a	DET
dss-287	764	10	baffle	baffle	ADJ
dss-287	764	11	thanks	thank	NOUN
dss-287	764	12	to	to	ADP
dss-287	764	13	its	its	PRON
dss-287	764	14	large	large	ADJ
dss-287	764	15	secondary	secondary	ADJ
dss-287	764	16	,	,	PUNCT
dss-287	764	17	which	which	PRON
dss-287	764	18	effectively	effectively	ADV
dss-287	764	19	blocks	block	VERB
dss-287	764	20	stray	stray	ADJ
dss-287	764	21	light	light	ADJ
dss-287	764	22	.	.	PUNCT
dss-287	765	1	dss	dss	NOUN
dss-287	765	2	vol	vol	NOUN
dss-287	765	3	.	.	PROPN
dss-287	766	1	6	6	NUM
dss-287	766	2	,	,	PUNCT
dss-287	766	3	no	no	INTJ
dss-287	766	4	.	.	NOUN
dss-287	766	5	1	1	NUM
dss-287	766	6	,	,	PUNCT
dss-287	766	7	2025	2025	NUM
dss-287	766	8	,	,	PUNCT
dss-287	766	9	pp.49	pp.49	NOUN
dss-287	766	10	-	-	SYM
dss-287	766	11	90	90	NUM
dss-287	766	12	79	79	NUM
dss-287	766	13	fig	fig	NOUN
dss-287	766	14	.	.	PUNCT
dss-287	767	1	16	16	NUM
dss-287	767	2	schemes	scheme	NOUN
dss-287	767	3	of	of	ADP
dss-287	767	4	six	six	NUM
dss-287	767	5	maksutov	maksutov	NOUN
dss-287	767	6	-	-	PUNCT
dss-287	767	7	cassegrain	cassegrain	NOUN
dss-287	767	8	telescope	telescope	NOUN
dss-287	767	9	systems	system	NOUN
dss-287	767	10	[	[	X
dss-287	767	11	3	3	X
dss-287	767	12	]	]	PUNCT
dss-287	767	13	dss	dss	NOUN
dss-287	767	14	vol	vol	NOUN
dss-287	767	15	.	.	PROPN
dss-287	768	1	6	6	NUM
dss-287	768	2	,	,	PUNCT
dss-287	768	3	no	no	INTJ
dss-287	768	4	.	.	NOUN
dss-287	768	5	1	1	NUM
dss-287	768	6	,	,	PUNCT
dss-287	768	7	2025	2025	NUM
dss-287	768	8	,	,	PUNCT
dss-287	768	9	pp.49	pp.49	NOUN
dss-287	768	10	-	-	SYM
dss-287	768	11	90	90	NUM
dss-287	768	12	80	80	NUM
dss-287	768	13	fig	fig	NOUN
dss-287	768	14	.	.	PUNCT
dss-287	769	1	17	17	NUM
dss-287	769	2	spot	spot	NOUN
dss-287	769	3	diagrams	diagram	NOUN
dss-287	769	4	for	for	ADP
dss-287	769	5	the	the	DET
dss-287	769	6	gregory	gregory	PROPN
dss-287	769	7	-	-	PUNCT
dss-287	769	8	maksutov	maksutov	PROPN
dss-287	769	9	and	and	CCONJ
dss-287	769	10	rumak	rumak	ADJ
dss-287	769	11	telescopes	telescope	NOUN
dss-287	769	12	[	[	X
dss-287	769	13	3	3	X
dss-287	769	14	]	]	PUNCT
dss-287	769	15	when	when	SCONJ
dss-287	769	16	comparing	compare	VERB
dss-287	769	17	maksutovand	maksutovand	ADJ
dss-287	769	18	schmidt	schmidt	ADJ
dss-287	769	19	-	-	PUNCT
dss-287	769	20	cassegrain	cassegrain	NOUN
dss-287	769	21	designs	design	NOUN
dss-287	769	22	,	,	PUNCT
dss-287	769	23	the	the	DET
dss-287	769	24	maksutov	maksutov	NOUN
dss-287	769	25	generally	generally	ADV
dss-287	769	26	requires	require	VERB
dss-287	769	27	larger	large	ADJ
dss-287	769	28	elements	element	NOUN
dss-287	769	29	due	due	ADP
dss-287	769	30	to	to	ADP
dss-287	769	31	the	the	DET
dss-287	769	32	stronger	strong	ADJ
dss-287	769	33	outward	outward	ADJ
dss-287	769	34	bending	bending	NOUN
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dss-287	769	37	by	by	ADP
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dss-287	769	39	negative	negative	ADJ
dss-287	769	40	corrector	corrector	NOUN
dss-287	769	41	lens	len	NOUN
dss-287	769	42	.	.	PUNCT
dss-287	770	1	both	both	CCONJ
dss-287	770	2	the	the	DET
dss-287	770	3	aspheric	aspheric	ADJ
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dss-287	770	6	the	the	DET
dss-287	770	7	f/4	f/4	ADJ
dss-287	770	8	schmidt	schmidt	ADJ
dss-287	770	9	-	-	PUNCT
dss-287	770	10	cassegrain	cassegrain	NOUN
dss-287	770	11	offer	offer	NOUN
dss-287	770	12	excellent	excellent	ADJ
dss-287	770	13	image	image	NOUN
dss-287	770	14	quality	quality	NOUN
dss-287	770	15	,	,	PUNCT
dss-287	770	16	but	but	CCONJ
dss-287	770	17	their	their	PRON
dss-287	770	18	construction	construction	NOUN
dss-287	770	19	is	be	AUX
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dss-287	770	21	,	,	PUNCT
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dss-287	770	25	only	only	ADV
dss-287	770	26	for	for	ADP
dss-287	770	27	highly	highly	ADV
dss-287	770	28	skilled	skilled	ADJ
dss-287	770	29	amateurs	amateur	NOUN
dss-287	770	30	seeking	seek	VERB
dss-287	770	31	top	top	ADJ
dss-287	770	32	-	-	PUNCT
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dss-287	770	34	,	,	PUNCT
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dss-287	770	36	-	-	PUNCT
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dss-287	770	40	[	[	X
dss-287	770	41	3	3	NUM
dss-287	770	42	]	]	PUNCT
dss-287	770	43	.	.	PUNCT
dss-287	771	1	dss	dss	NOUN
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dss-287	771	3	.	.	PROPN
dss-287	772	1	6	6	NUM
dss-287	772	2	,	,	PUNCT
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dss-287	772	4	.	.	NOUN
dss-287	772	5	1	1	NUM
dss-287	772	6	,	,	PUNCT
dss-287	772	7	2025	2025	NUM
dss-287	772	8	,	,	PUNCT
dss-287	772	9	pp.49	pp.49	NOUN
dss-287	772	10	-	-	SYM
dss-287	772	11	90	90	NUM
dss-287	772	12	81	81	NUM
dss-287	772	13	fig	fig	NOUN
dss-287	772	14	.	.	PUNCT
dss-287	773	1	18	18	NUM
dss-287	773	2	spot	spot	NOUN
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dss-287	773	4	for	for	ADP
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dss-287	773	7	and	and	CCONJ
dss-287	773	8	sigler	sigler	PROPN
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dss-287	773	11	[	[	X
dss-287	773	12	3	3	X
dss-287	773	13	]	]	X
dss-287	773	14	fig	fig	NOUN
dss-287	773	15	.	.	PUNCT
dss-287	774	1	19	19	NUM
dss-287	774	2	spot	spot	NOUN
dss-287	774	3	diagrams	diagram	NOUN
dss-287	774	4	for	for	ADP
dss-287	774	5	the	the	DET
dss-287	774	6	comapanar	comapanar	PROPN
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dss-287	774	8	[	[	X
dss-287	774	9	3	3	X
dss-287	774	10	]	]	PUNCT
dss-287	774	11	dss	dss	NOUN
dss-287	774	12	vol	vol	NOUN
dss-287	774	13	.	.	PROPN
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dss-287	774	15	,	,	PUNCT
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dss-287	774	17	.	.	NOUN
dss-287	774	18	1	1	NUM
dss-287	774	19	,	,	PUNCT
dss-287	774	20	2025	2025	NUM
dss-287	774	21	,	,	PUNCT
dss-287	774	22	pp.49	pp.49	NOUN
dss-287	774	23	-	-	SYM
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dss-287	774	33	-	-	PUNCT
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dss-287	775	1	[	[	X
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dss-287	775	3	]	]	PUNCT
dss-287	775	4	system	system	NOUN
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dss-287	775	11	(	(	PUNCT
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dss-287	777	10	20.6	20.6	NUM
dss-287	777	11	10.0	10.0	NUM
dss-287	777	12	11.1	11.1	NUM
dss-287	777	13	m₁	m₁	NOUN
dss-287	777	14	medium	medium	NOUN
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dss-287	777	16	517642	517642	NUM
dss-287	777	17	517642	517642	NUM
dss-287	777	18	517642	517642	NUM
dss-287	777	19	517642	517642	NUM
dss-287	777	20	517642	517642	NUM
dss-287	777	21	r₂	r₂	PROPN
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dss-287	778	1	-12300	-12300	PROPN
dss-287	779	1	t₂	t₂	NOUN
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dss-287	779	8	m₂	m₂	PROPN
dss-287	779	9	air	air	NOUN
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dss-287	779	22	t₃	t₃	NOUN
dss-287	779	23	-403.653	-403.653	X
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dss-287	779	33	air	air	PROPN
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dss-287	779	35	517643	517643	NUM
dss-287	779	36	r₄	r₄	PROPN
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dss-287	779	43	t₄	t₄	NOUN
dss-287	779	44	620.679	620.679	NUM
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dss-287	779	54	air	air	PROPN
dss-287	779	55	air	air	PROPN
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dss-287	779	57	r₅	r₅	PROPN
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dss-287	779	60	t₅	t₅	NOUN
dss-287	780	1	-140.0	-140.0	PROPN
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dss-287	780	3	m₅	m₅	PROPN
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dss-287	780	9	t₆	t₆	VERB
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dss-287	780	28	51.7	51.7	NUM
dss-287	780	29	19.6	19.6	NUM
dss-287	780	30	27.8	27.8	NUM
dss-287	780	31	8.8	8.8	NUM
dss-287	780	32	10.0	10.0	NUM
dss-287	780	33	7	7	NUM
dss-287	780	34	.	.	PUNCT
dss-287	781	1	conclusions	conclusion	NOUN
dss-287	781	2	in	in	ADP
dss-287	781	3	summary	summary	NOUN
dss-287	781	4	,	,	PUNCT
dss-287	781	5	this	this	DET
dss-287	781	6	review	review	NOUN
dss-287	781	7	has	have	AUX
dss-287	781	8	explored	explore	VERB
dss-287	781	9	the	the	DET
dss-287	781	10	design	design	NOUN
dss-287	781	11	characteristics	characteristic	NOUN
dss-287	781	12	and	and	CCONJ
dss-287	781	13	image	image	NOUN
dss-287	781	14	quality	quality	NOUN
dss-287	781	15	aspects	aspect	NOUN
dss-287	781	16	of	of	ADP
dss-287	781	17	the	the	DET
dss-287	781	18	three	three	NUM
dss-287	781	19	main	main	ADJ
dss-287	781	20	categories	category	NOUN
dss-287	781	21	of	of	ADP
dss-287	781	22	amateur	amateur	ADJ
dss-287	781	23	astronomical	astronomical	ADJ
dss-287	781	24	telescopes	telescope	NOUN
dss-287	781	25	:	:	PUNCT
dss-287	781	26	refractors	refractor	NOUN
dss-287	781	27	,	,	PUNCT
dss-287	781	28	reflectors	reflector	NOUN
dss-287	781	29	,	,	PUNCT
dss-287	781	30	and	and	CCONJ
dss-287	781	31	catadioptric	catadioptric	NOUN
dss-287	781	32	systems	system	NOUN
dss-287	781	33	.	.	PUNCT
dss-287	782	1	drawing	draw	VERB
dss-287	782	2	on	on	ADP
dss-287	782	3	an	an	DET
dss-287	782	4	extensive	extensive	ADJ
dss-287	782	5	literature	literature	NOUN
dss-287	782	6	base	base	NOUN
dss-287	782	7	of	of	ADP
dss-287	782	8	over	over	ADP
dss-287	782	9	150	150	NUM
dss-287	782	10	references	reference	NOUN
dss-287	782	11	,	,	PUNCT
dss-287	782	12	the	the	DET
dss-287	782	13	analysis	analysis	NOUN
dss-287	782	14	has	have	AUX
dss-287	782	15	addressed	address	VERB
dss-287	782	16	key	key	ADJ
dss-287	782	17	optical	optical	ADJ
dss-287	782	18	features	feature	NOUN
dss-287	782	19	,	,	PUNCT
dss-287	782	20	strengths	strength	NOUN
dss-287	782	21	,	,	PUNCT
dss-287	782	22	and	and	CCONJ
dss-287	782	23	limitations	limitation	NOUN
dss-287	782	24	of	of	ADP
dss-287	782	25	each	each	DET
dss-287	782	26	design	design	NOUN
dss-287	782	27	.	.	PUNCT
dss-287	783	1	comparative	comparative	ADJ
dss-287	783	2	evaluation	evaluation	NOUN
dss-287	783	3	has	have	AUX
dss-287	783	4	highlighted	highlight	VERB
dss-287	783	5	how	how	SCONJ
dss-287	783	6	these	these	DET
dss-287	783	7	instruments	instrument	NOUN
dss-287	783	8	differ	differ	VERB
dss-287	783	9	in	in	ADP
dss-287	783	10	terms	term	NOUN
dss-287	783	11	of	of	ADP
dss-287	783	12	optical	optical	ADJ
dss-287	783	13	performance	performance	NOUN
dss-287	783	14	,	,	PUNCT
dss-287	783	15	ease	ease	NOUN
dss-287	783	16	of	of	ADP
dss-287	783	17	use	use	NOUN
dss-287	783	18	,	,	PUNCT
dss-287	783	19	portability	portability	NOUN
dss-287	783	20	,	,	PUNCT
dss-287	783	21	and	and	CCONJ
dss-287	783	22	maintenance	maintenance	NOUN
dss-287	783	23	,	,	PUNCT
dss-287	783	24	as	as	ADV
dss-287	783	25	well	well	ADV
dss-287	783	26	as	as	ADP
dss-287	783	27	their	their	PRON
dss-287	783	28	effectiveness	effectiveness	NOUN
dss-287	783	29	in	in	ADP
dss-287	783	30	both	both	CCONJ
dss-287	783	31	visual	visual	ADJ
dss-287	783	32	observation	observation	NOUN
dss-287	783	33	and	and	CCONJ
dss-287	783	34	astrophotography	astrophotography	NOUN
dss-287	783	35	.	.	PUNCT
dss-287	784	1	particular	particular	ADJ
dss-287	784	2	emphasis	emphasis	NOUN
dss-287	784	3	was	be	AUX
dss-287	784	4	placed	place	VERB
dss-287	784	5	on	on	ADP
dss-287	784	6	the	the	DET
dss-287	784	7	management	management	NOUN
dss-287	784	8	of	of	ADP
dss-287	784	9	aberrations	aberration	NOUN
dss-287	784	10	,	,	PUNCT
dss-287	784	11	field	field	NOUN
dss-287	784	12	curvature	curvature	NOUN
dss-287	784	13	,	,	PUNCT
dss-287	784	14	and	and	CCONJ
dss-287	784	15	diffraction	diffraction	NOUN
dss-287	784	16	elements	element	NOUN
dss-287	784	17	central	central	ADJ
dss-287	784	18	to	to	ADP
dss-287	784	19	achieving	achieve	VERB
dss-287	784	20	high	high	ADJ
dss-287	784	21	image	image	NOUN
dss-287	784	22	quality	quality	NOUN
dss-287	784	23	.	.	PUNCT
dss-287	785	1	based	base	VERB
dss-287	785	2	on	on	ADP
dss-287	785	3	these	these	DET
dss-287	785	4	findings	finding	NOUN
dss-287	785	5	,	,	PUNCT
dss-287	785	6	practical	practical	ADJ
dss-287	785	7	guidance	guidance	NOUN
dss-287	785	8	is	be	AUX
dss-287	785	9	offered	offer	VERB
dss-287	785	10	for	for	ADP
dss-287	785	11	users	user	NOUN
dss-287	785	12	with	with	ADP
dss-287	785	13	different	different	ADJ
dss-287	785	14	observational	observational	ADJ
dss-287	785	15	goals	goal	NOUN
dss-287	785	16	,	,	PUNCT
dss-287	785	17	whether	whether	SCONJ
dss-287	785	18	focused	focus	VERB
dss-287	785	19	on	on	ADP
dss-287	785	20	planetary	planetary	ADJ
dss-287	785	21	detail	detail	NOUN
dss-287	785	22	,	,	PUNCT
dss-287	785	23	deep	deep	ADJ
dss-287	785	24	-	-	PUNCT
dss-287	785	25	sky	sky	NOUN
dss-287	785	26	imaging	imaging	NOUN
dss-287	785	27	,	,	PUNCT
dss-287	785	28	or	or	CCONJ
dss-287	785	29	introductory	introductory	ADJ
dss-287	785	30	stargazing	stargazing	NOUN
dss-287	785	31	.	.	PUNCT
dss-287	786	1	this	this	DET
dss-287	786	2	synthesis	synthesis	NOUN
dss-287	786	3	of	of	ADP
dss-287	786	4	theory	theory	NOUN
dss-287	786	5	and	and	CCONJ
dss-287	786	6	application	application	NOUN
dss-287	786	7	provides	provide	VERB
dss-287	786	8	a	a	DET
dss-287	786	9	useful	useful	ADJ
dss-287	786	10	framework	framework	NOUN
dss-287	786	11	for	for	ADP
dss-287	786	12	selecting	select	VERB
dss-287	786	13	the	the	DET
dss-287	786	14	most	most	ADV
dss-287	786	15	suitable	suitable	ADJ
dss-287	786	16	telescope	telescope	NOUN
dss-287	786	17	type	type	NOUN
dss-287	786	18	according	accord	VERB
dss-287	786	19	to	to	ADP
dss-287	786	20	individual	individual	ADJ
dss-287	786	21	needs	need	NOUN
dss-287	786	22	and	and	CCONJ
dss-287	786	23	interests	interest	NOUN
dss-287	786	24	.	.	PUNCT
dss-287	787	1	below	below	ADV
dss-287	787	2	are	be	AUX
dss-287	787	3	given	give	VERB
dss-287	787	4	general	general	ADJ
dss-287	787	5	conclusions	conclusion	NOUN
dss-287	787	6	that	that	PRON
dss-287	787	7	can	can	AUX
dss-287	787	8	be	be	AUX
dss-287	787	9	drawn	draw	VERB
dss-287	787	10	.	.	PUNCT
dss-287	788	1	refractor	refractor	NOUN
dss-287	788	2	telescopes	telescope	NOUN
dss-287	788	3	design	design	NOUN
dss-287	788	4	:	:	PUNCT
dss-287	788	5	uses	use	VERB
dss-287	788	6	lenses	lense	NOUN
dss-287	788	7	(	(	PUNCT
dss-287	788	8	typically	typically	ADV
dss-287	788	9	a	a	DET
dss-287	788	10	doublet	doublet	ADJ
dss-287	788	11	or	or	CCONJ
dss-287	788	12	triplet	triplet	NOUN
dss-287	788	13	objective	objective	NOUN
dss-287	788	14	)	)	PUNCT
dss-287	788	15	.	.	PUNCT
dss-287	789	1	optical	optical	ADJ
dss-287	789	2	characteristics	characteristic	NOUN
dss-287	789	3	:	:	PUNCT
dss-287	789	4			NOUN
dss-287	789	5	excellent	excellent	ADJ
dss-287	789	6	contrast	contrast	NOUN
dss-287	789	7	and	and	CCONJ
dss-287	789	8	sharpness	sharpness	NOUN
dss-287	789	9	,	,	PUNCT
dss-287	789	10	especially	especially	ADV
dss-287	789	11	for	for	ADP
dss-287	789	12	planetary	planetary	ADJ
dss-287	789	13	and	and	CCONJ
dss-287	789	14	lunar	lunar	ADJ
dss-287	789	15	observation	observation	NOUN
dss-287	789	16	.	.	PUNCT
dss-287	790	1			NOUN
dss-287	790	2	prone	prone	ADJ
dss-287	790	3	to	to	ADP
dss-287	790	4	chromatic	chromatic	ADJ
dss-287	790	5	aberration	aberration	NOUN
dss-287	790	6	unless	unless	SCONJ
dss-287	790	7	apochromatic	apochromatic	ADJ
dss-287	790	8	lenses	lense	NOUN
dss-287	790	9	are	be	AUX
dss-287	790	10	used	use	VERB
dss-287	790	11	(	(	PUNCT
dss-287	790	12	which	which	PRON
dss-287	790	13	are	be	AUX
dss-287	790	14	costly	costly	ADJ
dss-287	790	15	)	)	PUNCT
dss-287	790	16	.	.	PUNCT
dss-287	791	1			PROPN
dss-287	791	2	high	high	ADJ
dss-287	791	3	light	light	ADJ
dss-287	791	4	throughput	throughput	NOUN
dss-287	791	5	(	(	PUNCT
dss-287	791	6	no	no	DET
dss-287	791	7	central	central	ADJ
dss-287	791	8	obstruction	obstruction	NOUN
dss-287	791	9	)	)	PUNCT
dss-287	791	10	.	.	PUNCT
dss-287	792	1			X
dss-287	792	2	low	low	ADJ
dss-287	792	3	maintenance	maintenance	NOUN
dss-287	792	4	–	–	PUNCT
dss-287	792	5	sealed	seal	VERB
dss-287	792	6	tube	tube	NOUN
dss-287	792	7	keeps	keep	VERB
dss-287	792	8	optics	optic	NOUN
dss-287	792	9	clean	clean	ADJ
dss-287	792	10	and	and	CCONJ
dss-287	792	11	aligned	aligned	ADJ
dss-287	792	12	.	.	PUNCT
dss-287	793	1			PROPN
dss-287	793	2	heavy	heavy	ADJ
dss-287	793	3	and	and	CCONJ
dss-287	793	4	long	long	ADJ
dss-287	793	5	tubes	tube	NOUN
dss-287	793	6	for	for	ADP
dss-287	793	7	larger	large	ADJ
dss-287	793	8	apertures	aperture	NOUN
dss-287	793	9	;	;	PUNCT
dss-287	793	10	expensive	expensive	ADJ
dss-287	793	11	in	in	ADP
dss-287	793	12	large	large	ADJ
dss-287	793	13	sizes	size	NOUN
dss-287	793	14	.	.	PUNCT
dss-287	794	1	dss	dss	NOUN
dss-287	794	2	vol	vol	NOUN
dss-287	794	3	.	.	PROPN
dss-287	795	1	6	6	NUM
dss-287	795	2	,	,	PUNCT
dss-287	795	3	no	no	INTJ
dss-287	795	4	.	.	NOUN
dss-287	795	5	1	1	NUM
dss-287	795	6	,	,	PUNCT
dss-287	795	7	2025	2025	NUM
dss-287	795	8	,	,	PUNCT
dss-287	795	9	pp.49	pp.49	NOUN
dss-287	795	10	-	-	SYM
dss-287	795	11	90	90	NUM
dss-287	795	12	83	83	NUM
dss-287	795	13	reflector	reflector	NOUN
dss-287	795	14	telescopes	telescope	NOUN
dss-287	795	15	–	–	PUNCT
dss-287	795	16	newtonian	newtonian	ADJ
dss-287	795	17	type	type	NOUN
dss-287	795	18	design	design	NOUN
dss-287	795	19	:	:	PUNCT
dss-287	795	20	uses	use	VERB
dss-287	795	21	a	a	DET
dss-287	795	22	parabolic	parabolic	ADJ
dss-287	795	23	primary	primary	ADJ
dss-287	795	24	mirror	mirror	NOUN
dss-287	795	25	and	and	CCONJ
dss-287	795	26	a	a	DET
dss-287	795	27	flat	flat	ADJ
dss-287	795	28	secondary	secondary	ADJ
dss-287	795	29	mirror	mirror	NOUN
dss-287	795	30	.	.	PUNCT
dss-287	796	1	optical	optical	ADJ
dss-287	796	2	characteristics	characteristic	NOUN
dss-287	796	3	:	:	PUNCT
dss-287	796	4			PRON
dss-287	796	5	very	very	ADV
dss-287	796	6	good	good	ADJ
dss-287	796	7	image	image	NOUN
dss-287	796	8	quality	quality	NOUN
dss-287	796	9	,	,	PUNCT
dss-287	796	10	no	no	DET
dss-287	796	11	chromatic	chromatic	ADJ
dss-287	796	12	aberration	aberration	NOUN
dss-287	796	13	.	.	PUNCT
dss-287	797	1			X
dss-287	797	2	coma	coma	ADJ
dss-287	797	3	off	off	ADP
dss-287	797	4	-	-	PUNCT
dss-287	797	5	axis	axis	NOUN
dss-287	797	6	in	in	ADP
dss-287	797	7	fast	fast	ADJ
dss-287	797	8	focal	focal	ADJ
dss-287	797	9	ratios	ratio	NOUN
dss-287	797	10	.	.	PUNCT
dss-287	798	1			PROPN
dss-287	798	2	slight	slight	ADJ
dss-287	798	3	contrast	contrast	NOUN
dss-287	798	4	reduction	reduction	NOUN
dss-287	798	5	due	due	ADP
dss-287	798	6	to	to	ADP
dss-287	798	7	central	central	ADJ
dss-287	798	8	obstruction	obstruction	NOUN
dss-287	798	9	.	.	PUNCT
dss-287	799	1			PROPN
dss-287	799	2	requires	require	VERB
dss-287	799	3	collimation	collimation	NOUN
dss-287	799	4	;	;	PUNCT
dss-287	799	5	open	open	ADJ
dss-287	799	6	tube	tube	NOUN
dss-287	799	7	prone	prone	ADJ
dss-287	799	8	to	to	ADP
dss-287	799	9	dust	dust	NOUN
dss-287	799	10	and	and	CCONJ
dss-287	799	11	thermal	thermal	ADJ
dss-287	799	12	currents	current	NOUN
dss-287	799	13	.	.	PUNCT
dss-287	800	1			X
dss-287	800	2	cost	cost	NOUN
dss-287	800	3	-	-	PUNCT
dss-287	800	4	effective	effective	ADJ
dss-287	800	5	;	;	PUNCT
dss-287	800	6	large	large	ADJ
dss-287	800	7	apertures	aperture	NOUN
dss-287	800	8	are	be	AUX
dss-287	800	9	affordable	affordable	ADJ
dss-287	800	10	.	.	PUNCT
dss-287	801	1	reflector	reflector	NOUN
dss-287	801	2	telescopes	telescope	NOUN
dss-287	801	3	–	–	PUNCT
dss-287	801	4	cassegrain	cassegrain	NOUN
dss-287	801	5	type	type	NOUN
dss-287	801	6	design	design	NOUN
dss-287	801	7	:	:	PUNCT
dss-287	801	8	uses	use	VERB
dss-287	801	9	a	a	DET
dss-287	801	10	concave	concave	ADJ
dss-287	801	11	primary	primary	NOUN
dss-287	801	12	and	and	CCONJ
dss-287	801	13	convex	convex	VERB
dss-287	801	14	secondary	secondary	ADJ
dss-287	801	15	mirror	mirror	NOUN
dss-287	801	16	.	.	PUNCT
dss-287	802	1	optical	optical	ADJ
dss-287	802	2	characteristics	characteristic	NOUN
dss-287	802	3	:	:	PUNCT
dss-287	802	4			NOUN
dss-287	802	5	high	high	ADJ
dss-287	802	6	resolution	resolution	NOUN
dss-287	802	7	;	;	PUNCT
dss-287	802	8	suitable	suitable	ADJ
dss-287	802	9	for	for	ADP
dss-287	802	10	planetary	planetary	ADJ
dss-287	802	11	and	and	CCONJ
dss-287	802	12	deep	deep	ADJ
dss-287	802	13	-	-	PUNCT
dss-287	802	14	sky	sky	NOUN
dss-287	802	15	imaging	imaging	NOUN
dss-287	802	16	.	.	PUNCT
dss-287	803	1			PROPN
dss-287	803	2	can	can	AUX
dss-287	803	3	have	have	VERB
dss-287	803	4	field	field	NOUN
dss-287	803	5	curvature	curvature	NOUN
dss-287	803	6	and	and	CCONJ
dss-287	803	7	coma	coma	NOUN
dss-287	803	8	;	;	PUNCT
dss-287	803	9	often	often	ADV
dss-287	803	10	corrected	correct	VERB
dss-287	803	11	in	in	ADP
dss-287	803	12	compound	compound	NOUN
dss-287	803	13	variants	variant	NOUN
dss-287	803	14	.	.	PUNCT
dss-287	804	1			X
dss-287	804	2	larger	large	ADJ
dss-287	804	3	central	central	ADJ
dss-287	804	4	obstruction	obstruction	NOUN
dss-287	804	5	than	than	ADP
dss-287	804	6	newtonians	newtonian	NOUN
dss-287	804	7	.	.	PUNCT
dss-287	805	1			PROPN
dss-287	805	2	closed	close	VERB
dss-287	805	3	tube	tube	NOUN
dss-287	805	4	(	(	PUNCT
dss-287	805	5	when	when	SCONJ
dss-287	805	6	combined	combine	VERB
dss-287	805	7	with	with	ADP
dss-287	805	8	corrector	corrector	NOUN
dss-287	805	9	)	)	PUNCT
dss-287	805	10	;	;	PUNCT
dss-287	805	11	mirrors	mirror	NOUN
dss-287	805	12	need	need	VERB
dss-287	805	13	alignment	alignment	NOUN
dss-287	805	14	.	.	PUNCT
dss-287	806	1	schmidt	schmidt	ADJ
dss-287	806	2	-	-	PUNCT
dss-287	806	3	cassegrain	cassegrain	NOUN
dss-287	806	4	telescope	telescope	NOUN
dss-287	806	5	(	(	PUNCT
dss-287	806	6	sct	sct	PROPN
dss-287	806	7	)	)	PUNCT
dss-287	806	8	design	design	NOUN
dss-287	806	9	:	:	PUNCT
dss-287	806	10	combines	combine	VERB
dss-287	806	11	spherical	spherical	ADJ
dss-287	806	12	primary	primary	ADJ
dss-287	806	13	mirror	mirror	NOUN
dss-287	806	14	,	,	PUNCT
dss-287	806	15	schmidt	schmidt	ADJ
dss-287	806	16	corrector	corrector	NOUN
dss-287	806	17	plate	plate	NOUN
dss-287	806	18	,	,	PUNCT
dss-287	806	19	and	and	CCONJ
dss-287	806	20	secondary	secondary	ADJ
dss-287	806	21	mirror	mirror	NOUN
dss-287	806	22	.	.	PUNCT
dss-287	807	1	optical	optical	ADJ
dss-287	807	2	characteristics	characteristic	NOUN
dss-287	807	3	:	:	PUNCT
dss-287	807	4			NOUN
dss-287	807	5	good	good	ADJ
dss-287	807	6	all	all	ADV
dss-287	807	7	-	-	PUNCT
dss-287	807	8	around	around	ADP
dss-287	807	9	performance	performance	NOUN
dss-287	807	10	;	;	PUNCT
dss-287	807	11	minor	minor	ADJ
dss-287	807	12	spherical	spherical	ADJ
dss-287	807	13	aberration	aberration	NOUN
dss-287	807	14	corrected	correct	VERB
dss-287	807	15	.	.	PUNCT
dss-287	808	1			PRON
dss-287	808	2	field	field	NOUN
dss-287	808	3	curvature	curvature	NOUN
dss-287	808	4	and	and	CCONJ
dss-287	808	5	coma	coma	NOUN
dss-287	808	6	;	;	PUNCT
dss-287	808	7	not	not	PART
dss-287	808	8	ideal	ideal	ADJ
dss-287	808	9	for	for	ADP
dss-287	808	10	wide	wide	ADJ
dss-287	808	11	-	-	PUNCT
dss-287	808	12	field	field	NOUN
dss-287	808	13	astrophotography	astrophotography	NOUN
dss-287	808	14	without	without	ADP
dss-287	808	15	a	a	DET
dss-287	808	16	corrector	corrector	NOUN
dss-287	808	17	.	.	PUNCT
dss-287	809	1			PROPN
dss-287	809	2	moderate	moderate	ADJ
dss-287	809	3	light	light	ADJ
dss-287	809	4	throughput	throughput	NOUN
dss-287	809	5	due	due	ADP
dss-287	809	6	to	to	ADP
dss-287	809	7	central	central	ADJ
dss-287	809	8	obstruction	obstruction	NOUN
dss-287	809	9	and	and	CCONJ
dss-287	809	10	multiple	multiple	ADJ
dss-287	809	11	reflections	reflection	NOUN
dss-287	809	12	.	.	PUNCT
dss-287	810	1			X
dss-287	810	2	compact	compact	ADJ
dss-287	810	3	and	and	CCONJ
dss-287	810	4	lightweight	lightweight	ADJ
dss-287	810	5	for	for	ADP
dss-287	810	6	aperture	aperture	ADJ
dss-287	810	7	size	size	NOUN
dss-287	810	8	.	.	PUNCT
dss-287	811	1			X
dss-287	811	2	needs	need	VERB
dss-287	811	3	occasional	occasional	ADJ
dss-287	811	4	collimation	collimation	NOUN
dss-287	811	5	;	;	PUNCT
dss-287	811	6	the	the	DET
dss-287	811	7	corrector	corrector	NOUN
dss-287	811	8	plate	plate	NOUN
dss-287	811	9	helps	help	VERB
dss-287	811	10	seal	seal	VERB
dss-287	811	11	the	the	DET
dss-287	811	12	system	system	NOUN
dss-287	811	13	.	.	PUNCT
dss-287	812	1	maksutov	maksutov	NOUN
dss-287	812	2	-	-	PUNCT
dss-287	812	3	cassegrain	cassegrain	NOUN
dss-287	812	4	telescope	telescope	NOUN
dss-287	812	5	(	(	PUNCT
dss-287	812	6	mct	mct	PROPN
dss-287	812	7	)	)	PUNCT
dss-287	812	8	design	design	NOUN
dss-287	812	9	:	:	PUNCT
dss-287	812	10	uses	use	VERB
dss-287	812	11	a	a	DET
dss-287	812	12	spherical	spherical	ADJ
dss-287	812	13	primary	primary	ADJ
dss-287	812	14	mirror	mirror	NOUN
dss-287	812	15	and	and	CCONJ
dss-287	812	16	meniscus	meniscus	NOUN
dss-287	812	17	corrector	corrector	NOUN
dss-287	812	18	with	with	ADP
dss-287	812	19	a	a	DET
dss-287	812	20	built	build	VERB
dss-287	812	21	-	-	PUNCT
dss-287	812	22	in	in	ADP
dss-287	812	23	secondary	secondary	ADJ
dss-287	812	24	.	.	PUNCT
dss-287	813	1	optical	optical	ADJ
dss-287	813	2	characteristics	characteristic	NOUN
dss-287	813	3	:	:	PUNCT
dss-287	813	4			PRON
dss-287	813	5	very	very	ADV
dss-287	813	6	sharp	sharp	ADJ
dss-287	813	7	and	and	CCONJ
dss-287	813	8	high	high	ADJ
dss-287	813	9	contrast	contrast	NOUN
dss-287	813	10	;	;	PUNCT
dss-287	813	11	excellent	excellent	ADJ
dss-287	813	12	for	for	ADP
dss-287	813	13	lunar	lunar	ADJ
dss-287	813	14	and	and	CCONJ
dss-287	813	15	planetary	planetary	ADJ
dss-287	813	16	observation	observation	NOUN
dss-287	813	17	.	.	PUNCT
dss-287	814	1			X
dss-287	814	2	very	very	ADV
dss-287	814	3	well	well	ADV
dss-287	814	4	corrected	correct	VERB
dss-287	814	5	;	;	PUNCT
dss-287	814	6	minimal	minimal	ADJ
dss-287	814	7	chromatic	chromatic	ADJ
dss-287	814	8	and	and	CCONJ
dss-287	814	9	spherical	spherical	ADJ
dss-287	814	10	aberration	aberration	NOUN
dss-287	814	11	.	.	PUNCT
dss-287	815	1			NOUN
dss-287	815	2	slightly	slightly	ADV
dss-287	815	3	lower	low	ADJ
dss-287	815	4	light	light	ADJ
dss-287	815	5	throughput	throughput	NOUN
dss-287	815	6	due	due	ADP
dss-287	815	7	to	to	ADP
dss-287	815	8	the	the	DET
dss-287	815	9	thick	thick	ADJ
dss-287	815	10	corrector	corrector	NOUN
dss-287	815	11	and	and	CCONJ
dss-287	815	12	central	central	ADJ
dss-287	815	13	obstruction	obstruction	NOUN
dss-287	815	14	.	.	PUNCT
dss-287	816	1			X
dss-287	816	2	very	very	ADV
dss-287	816	3	compact	compact	ADJ
dss-287	816	4	;	;	PUNCT
dss-287	816	5	slower	slow	ADJ
dss-287	816	6	focal	focal	ADJ
dss-287	816	7	ratios	ratio	NOUN
dss-287	816	8	(	(	PUNCT
dss-287	816	9	e.g.	e.g.	ADV
dss-287	816	10	,	,	PUNCT
dss-287	816	11	f/12	f/12	ADJ
dss-287	816	12	–	–	PUNCT
dss-287	816	13	f/15	f/15	NOUN
dss-287	816	14	)	)	PUNCT
dss-287	816	15	.	.	PUNCT
dss-287	817	1			NOUN
dss-287	817	2	rarely	rarely	ADV
dss-287	817	3	needs	need	VERB
dss-287	817	4	collimation	collimation	NOUN
dss-287	817	5	;	;	PUNCT
dss-287	817	6	sealed	seal	VERB
dss-287	817	7	system	system	NOUN
dss-287	817	8	is	be	AUX
dss-287	817	9	low	low	ADJ
dss-287	817	10	maintenance	maintenance	NOUN
dss-287	817	11	.	.	PUNCT
dss-287	818	1			NOUN
dss-287	818	2	long	long	ADJ
dss-287	818	3	cool	cool	VERB
dss-287	818	4	-	-	PUNCT
dss-287	818	5	down	down	ADP
dss-287	818	6	time	time	NOUN
dss-287	818	7	due	due	ADP
dss-287	818	8	to	to	ADP
dss-287	818	9	thick	thick	ADJ
dss-287	818	10	corrector	corrector	NOUN
dss-287	818	11	;	;	PUNCT
dss-287	818	12	narrow	narrow	ADJ
dss-287	818	13	field	field	NOUN
dss-287	818	14	of	of	ADP
dss-287	818	15	view	view	NOUN
dss-287	818	16	.	.	PUNCT
dss-287	819	1	below	below	ADV
dss-287	819	2	is	be	AUX
dss-287	819	3	given	give	VERB
dss-287	819	4	quick	quick	ADJ
dss-287	819	5	comparison	comparison	NOUN
dss-287	819	6	table	table	NOUN
dss-287	819	7	,	,	PUNCT
dss-287	819	8	based	base	VERB
dss-287	819	9	on	on	ADP
dss-287	819	10	previous	previous	ADJ
dss-287	819	11	conclusions	conclusion	NOUN
dss-287	819	12	.	.	PUNCT
dss-287	820	1	characteristic	characteristic	ADJ
dss-287	820	2	refractor	refractor	PROPN
dss-287	820	3	newtonian	newtonian	PROPN
dss-287	820	4	cassegrain	cassegrain	PROPN
dss-287	820	5	schmidt	schmidt	PROPN
dss-287	820	6	-	-	PUNCT
dss-287	820	7	cassegrain	cassegrain	NOUN
dss-287	820	8	maksutov	maksutov	NOUN
dss-287	820	9	-	-	PUNCT
dss-287	820	10	cassegrain	cassegrain	NOUN
dss-287	820	11	chromatic	chromatic	ADJ
dss-287	820	12	aberration	aberration	NOUN
dss-287	821	1	yes	yes	INTJ
dss-287	821	2	(	(	PUNCT
dss-287	821	3	unless	unless	SCONJ
dss-287	821	4	apo	apo	PROPN
dss-287	821	5	)	)	PUNCT
dss-287	821	6	none	none	NOUN
dss-287	821	7	none	none	NOUN
dss-287	821	8	none	none	NOUN
dss-287	821	9	(	(	PUNCT
dss-287	821	10	minor	minor	ADJ
dss-287	821	11	sa	sa	NOUN
dss-287	821	12	)	)	PUNCT
dss-287	821	13	minimal	minimal	ADJ
dss-287	821	14	contrast	contrast	NOUN
dss-287	821	15	excellent	excellent	ADJ
dss-287	821	16	good	good	ADJ
dss-287	821	17	moderate	moderate	ADJ
dss-287	821	18	good	good	ADJ
dss-287	821	19	excellent	excellent	ADJ
dss-287	821	20	field	field	NOUN
dss-287	821	21	of	of	ADP
dss-287	821	22	view	view	NOUN
dss-287	821	23	moderate	moderate	ADJ
dss-287	821	24	wide	wide	ADJ
dss-287	821	25	narrow	narrow	ADJ
dss-287	821	26	moderate	moderate	ADJ
dss-287	821	27	narrow	narrow	ADJ
dss-287	821	28	portability	portability	NOUN
dss-287	821	29	low	low	ADJ
dss-287	821	30	moderate	moderate	ADJ
dss-287	821	31	moderate	moderate	ADJ
dss-287	821	32	moderate	moderate	ADJ
dss-287	821	33	high	high	ADJ
dss-287	821	34	high	high	ADJ
dss-287	821	35	maintenance	maintenance	NOUN
dss-287	821	36	very	very	ADV
dss-287	821	37	low	low	ADJ
dss-287	821	38	high	high	ADJ
dss-287	821	39	moderate	moderate	ADJ
dss-287	821	40	low	low	ADJ
dss-287	821	41	moderate	moderate	ADJ
dss-287	821	42	very	very	ADV
dss-287	821	43	low	low	ADJ
dss-287	821	44	astrophotography	astrophotography	NOUN
dss-287	821	45	good	good	NOUN
dss-287	821	46	(	(	PUNCT
dss-287	821	47	apo	apo	NOUN
dss-287	821	48	)	)	PUNCT
dss-287	821	49	very	very	ADV
dss-287	821	50	good	good	ADJ
dss-287	821	51	(	(	PUNCT
dss-287	821	52	fast	fast	ADJ
dss-287	821	53	)	)	PUNCT
dss-287	821	54	good	good	ADJ
dss-287	821	55	good	good	ADJ
dss-287	821	56	(	(	PUNCT
dss-287	821	57	with	with	ADP
dss-287	821	58	corrector	corrector	NOUN
dss-287	821	59	)	)	PUNCT
dss-287	821	60	fair	fair	ADJ
dss-287	821	61	(	(	PUNCT
dss-287	821	62	narrow	narrow	ADJ
dss-287	821	63	field	field	NOUN
dss-287	821	64	)	)	PUNCT
dss-287	821	65	dss	dss	NOUN
dss-287	821	66	vol	vol	NOUN
dss-287	821	67	.	.	PROPN
dss-287	822	1	6	6	NUM
dss-287	822	2	,	,	PUNCT
dss-287	822	3	no	no	INTJ
dss-287	822	4	.	.	NOUN
dss-287	822	5	1	1	NUM
dss-287	822	6	,	,	PUNCT
dss-287	822	7	2025	2025	NUM
dss-287	822	8	,	,	PUNCT
dss-287	822	9	pp.49	pp.49	NOUN
dss-287	822	10	-	-	SYM
dss-287	822	11	90	90	NUM
dss-287	822	12	84	84	NUM
dss-287	822	13	declaration	declaration	NOUN
dss-287	822	14	of	of	ADP
dss-287	822	15	competing	compete	VERB
dss-287	822	16	interest	interest	NOUN
dss-287	822	17	the	the	DET
dss-287	822	18	authors	author	NOUN
dss-287	822	19	declare	declare	VERB
dss-287	822	20	that	that	SCONJ
dss-287	822	21	they	they	PRON
dss-287	822	22	have	have	VERB
dss-287	822	23	no	no	DET
dss-287	822	24	known	know	VERB
dss-287	822	25	financial	financial	ADJ
dss-287	822	26	or	or	CCONJ
dss-287	822	27	non	non	ADJ
dss-287	822	28	-	-	ADJ
dss-287	822	29	financial	financial	ADJ
dss-287	822	30	competing	compete	VERB
dss-287	822	31	interests	interest	NOUN
dss-287	822	32	in	in	ADP
dss-287	822	33	any	any	DET
dss-287	822	34	material	material	NOUN
dss-287	822	35	discussed	discuss	VERB
dss-287	822	36	in	in	ADP
dss-287	822	37	this	this	DET
dss-287	822	38	paper	paper	NOUN
dss-287	822	39	.	.	PUNCT
dss-287	823	1	funding	funding	NOUN
dss-287	823	2	information	information	NOUN
dss-287	823	3	no	no	DET
dss-287	823	4	funding	funding	NOUN
dss-287	823	5	was	be	AUX
dss-287	823	6	received	receive	VERB
dss-287	823	7	from	from	ADP
dss-287	823	8	any	any	DET
dss-287	823	9	financial	financial	ADJ
dss-287	823	10	organization	organization	NOUN
dss-287	823	11	to	to	PART
dss-287	823	12	conduct	conduct	VERB
dss-287	823	13	this	this	DET
dss-287	823	14	research	research	NOUN
dss-287	823	15	.	.	PUNCT
dss-287	824	1	references	reference	NOUN
dss-287	824	2	[	[	X
dss-287	824	3	1	1	X
dss-287	824	4	]	]	PUNCT
dss-287	824	5	j.	j.	PROPN
dss-287	824	6	cheng	cheng	PROPN
dss-287	824	7	,	,	PUNCT
dss-287	824	8	the	the	DET
dss-287	824	9	principles	principle	NOUN
dss-287	824	10	of	of	ADP
dss-287	824	11	astronomical	astronomical	ADJ
dss-287	824	12	telescope	telescope	NOUN
dss-287	824	13	design	design	NOUN
dss-287	824	14	.	.	PUNCT
dss-287	825	1	new	new	PROPN
dss-287	825	2	york	york	PROPN
dss-287	825	3	,	,	PUNCT
dss-287	825	4	ny	ny	PROPN
dss-287	825	5	,	,	PUNCT
dss-287	825	6	usa	usa	PROPN
dss-287	825	7	:	:	PUNCT
dss-287	825	8	springer	springer	NOUN
dss-287	825	9	,	,	PUNCT
dss-287	825	10	2009	2009	NUM
dss-287	825	11	.	.	PUNCT
dss-287	826	1	[	[	X
dss-287	826	2	2	2	X
dss-287	826	3	]	]	PUNCT
dss-287	826	4	p.	p.	PROPN
dss-287	826	5	y.	y.	PROPN
dss-287	826	6	bely	bely	PROPN
dss-287	826	7	,	,	PUNCT
dss-287	826	8	the	the	DET
dss-287	826	9	design	design	NOUN
dss-287	826	10	and	and	CCONJ
dss-287	826	11	construction	construction	NOUN
dss-287	826	12	of	of	ADP
dss-287	826	13	large	large	ADJ
dss-287	826	14	optical	optical	ADJ
dss-287	826	15	telescopes	telescope	NOUN
dss-287	826	16	.	.	PUNCT
dss-287	827	1	new	new	PROPN
dss-287	827	2	york	york	PROPN
dss-287	827	3	,	,	PUNCT
dss-287	827	4	ny	ny	PROPN
dss-287	827	5	,	,	PUNCT
dss-287	827	6	usa	usa	PROPN
dss-287	827	7	:	:	PUNCT
dss-287	827	8	springer	springer	NOUN
dss-287	827	9	,	,	PUNCT
dss-287	827	10	2003	2003	NUM
dss-287	827	11	.	.	PUNCT
dss-287	828	1	[	[	X
dss-287	828	2	3	3	X
dss-287	828	3	]	]	X
dss-287	828	4	h.	h.	PROPN
dss-287	828	5	g.	g.	PROPN
dss-287	828	6	j.	j.	PROPN
dss-287	828	7	rutten	rutten	PROPN
dss-287	828	8	,	,	PUNCT
dss-287	828	9	m.	m.	NOUN
dss-287	828	10	a.	a.	NOUN
dss-287	828	11	m.	m.	PROPN
dss-287	828	12	van	van	PROPN
dss-287	828	13	venrooij	venrooij	PROPN
dss-287	828	14	,	,	PUNCT
dss-287	828	15	telescope	telescope	NOUN
dss-287	828	16	optics	optic	NOUN
dss-287	828	17	:	:	PUNCT
dss-287	828	18	a	a	DET
dss-287	828	19	comprehensive	comprehensive	ADJ
dss-287	828	20	manual	manual	NOUN
dss-287	828	21	for	for	ADP
dss-287	828	22	amateur	amateur	ADJ
dss-287	828	23	astronomers	astronomer	NOUN
dss-287	828	24	.	.	PUNCT
dss-287	829	1	richmond	richmond	PROPN
dss-287	829	2	,	,	PUNCT
dss-287	829	3	va	va	PROPN
dss-287	829	4	,	,	PUNCT
dss-287	829	5	usa	usa	PROPN
dss-287	829	6	:	:	PUNCT
dss-287	829	7	willmann	willmann	NOUN
dss-287	829	8	-	-	PUNCT
dss-287	829	9	bell	bell	NOUN
dss-287	829	10	,	,	PUNCT
dss-287	829	11	1988	1988	NUM
dss-287	829	12	.	.	PUNCT
dss-287	830	1	[	[	X
dss-287	830	2	4	4	X
dss-287	830	3	]	]	X
dss-287	830	4	d.	d.	PROPN
dss-287	830	5	j.	j.	PROPN
dss-287	830	6	schroeder	schroeder	PROPN
dss-287	830	7	,	,	PUNCT
dss-287	830	8	astronomical	astronomical	ADJ
dss-287	830	9	optics	optic	NOUN
dss-287	830	10	.	.	PUNCT
dss-287	831	1	san	san	PROPN
dss-287	831	2	diego	diego	PROPN
dss-287	831	3	,	,	PUNCT
dss-287	831	4	ca	ca	PROPN
dss-287	831	5	,	,	PUNCT
dss-287	831	6	usa	usa	PROPN
dss-287	831	7	:	:	PUNCT
dss-287	831	8	academic	academic	ADJ
dss-287	831	9	press	press	NOUN
dss-287	831	10	,	,	PUNCT
dss-287	831	11	2000	2000	NUM
dss-287	831	12	.	.	PUNCT
dss-287	832	1	[	[	X
dss-287	832	2	5	5	NUM
dss-287	832	3	]	]	PUNCT
dss-287	832	4	r.	r.	PROPN
dss-287	832	5	n.	n.	PROPN
dss-287	832	6	wilson	wilson	PROPN
dss-287	832	7	,	,	PUNCT
dss-287	832	8	reflecting	reflect	VERB
dss-287	832	9	telescope	telescope	NOUN
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dss-287	832	12	:	:	PUNCT
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dss-287	832	17	its	its	PRON
dss-287	832	18	historical	historical	ADJ
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dss-287	832	20	.	.	PUNCT
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dss-287	833	2	,	,	PUNCT
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dss-287	833	4	:	:	PUNCT
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dss-287	833	6	,	,	PUNCT
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dss-287	833	8	.	.	PUNCT
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dss-287	834	3	]	]	PUNCT
dss-287	834	4	r.	r.	PROPN
dss-287	834	5	n.	n.	PROPN
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dss-287	834	7	,	,	PUNCT
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dss-287	834	9	telescope	telescope	NOUN
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dss-287	834	12	:	:	PUNCT
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dss-287	834	14	,	,	PUNCT
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dss-287	834	16	,	,	PUNCT
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dss-287	834	18	,	,	PUNCT
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dss-287	834	21	.	.	PUNCT
dss-287	835	1	berlin	berlin	PROPN
dss-287	835	2	,	,	PUNCT
dss-287	835	3	germany	germany	PROPN
dss-287	835	4	:	:	PUNCT
dss-287	835	5	springer	springer	NOUN
dss-287	835	6	,	,	PUNCT
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dss-287	835	8	.	.	PUNCT
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dss-287	836	2	7	7	X
dss-287	836	3	]	]	X
dss-287	836	4	b.	b.	PROPN
dss-287	836	5	h.	h.	PROPN
dss-287	836	6	walker	walker	PROPN
dss-287	836	7	,	,	PUNCT
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dss-287	836	13	.	.	PUNCT
dss-287	837	1	bellingham	bellingham	PROPN
dss-287	837	2	,	,	PUNCT
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dss-287	837	6	:	:	PUNCT
dss-287	837	7	spie	spie	ADJ
dss-287	837	8	press	press	NOUN
dss-287	837	9	,	,	PUNCT
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dss-287	837	11	.	.	PUNCT
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dss-287	838	2	8	8	X
dss-287	838	3	]	]	X
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dss-287	838	5	m.	m.	PROPN
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dss-287	838	7	,	,	PUNCT
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dss-287	838	9	to	to	ADP
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dss-287	838	16	.	.	PUNCT
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dss-287	839	2	,	,	PUNCT
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dss-287	839	6	:	:	PUNCT
dss-287	839	7	willmann	willmann	NOUN
dss-287	839	8	-	-	PUNCT
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dss-287	839	10	,	,	PUNCT
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dss-287	839	12	.	.	PUNCT
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dss-287	840	7	,	,	PUNCT
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dss-287	840	9	computer	computer	NOUN
dss-287	840	10	-	-	PUNCT
dss-287	840	11	aided	aid	VERB
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dss-287	840	14	.	.	PUNCT
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dss-287	841	2	,	,	PUNCT
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dss-287	841	5	usa	usa	PROPN
dss-287	841	6	:	:	PUNCT
dss-287	841	7	willmann	willmann	NOUN
dss-287	841	8	-	-	PUNCT
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dss-287	841	10	,	,	PUNCT
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dss-287	841	12	.	.	PUNCT
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dss-287	842	9	l.	l.	PROPN
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dss-287	842	11	,	,	PUNCT
dss-287	842	12	designing	design	VERB
dss-287	842	13	optics	optic	NOUN
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dss-287	842	15	zemax	zemax	PROPN
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dss-287	842	18	.	.	PUNCT
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dss-287	843	2	,	,	PUNCT
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dss-287	843	5	usa	usa	PROPN
dss-287	843	6	:	:	PUNCT
dss-287	843	7	spie	spie	ADJ
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dss-287	843	9	,	,	PUNCT
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dss-287	843	11	.	.	PUNCT
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dss-287	844	12	:	:	PUNCT
dss-287	844	13	a	a	DET
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dss-287	844	21	2nd	2nd	PROPN
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dss-287	845	2	,	,	PUNCT
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dss-287	845	5	usa	usa	PROPN
dss-287	845	6	:	:	PUNCT
dss-287	845	7	willmann	willmann	NOUN
dss-287	845	8	-	-	PUNCT
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dss-287	845	12	.	.	PUNCT
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dss-287	846	3	]	]	PUNCT
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dss-287	846	11	,	,	PUNCT
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dss-287	846	15	:	:	PUNCT
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dss-287	846	17	.	.	PUNCT
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dss-287	847	2	,	,	PUNCT
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dss-287	847	5	usa	usa	PROPN
dss-287	847	6	:	:	PUNCT
dss-287	847	7	willmann	willmann	NOUN
dss-287	847	8	-	-	PUNCT
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dss-287	847	10	,	,	PUNCT
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dss-287	847	12	.	.	PUNCT
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dss-287	848	3	]	]	PUNCT
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dss-287	848	5	mackintosh	mackintosh	PROPN
dss-287	848	6	,	,	PUNCT
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dss-287	848	8	telescope	telescope	NOUN
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dss-287	848	11	,	,	PUNCT
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dss-287	848	13	.	.	NOUN
dss-287	849	1	2	2	NUM
dss-287	849	2	:	:	PUNCT
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dss-287	849	4	.	.	PUNCT
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dss-287	850	2	,	,	PUNCT
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dss-287	850	6	:	:	PUNCT
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dss-287	850	8	-	-	PUNCT
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dss-287	850	10	,	,	PUNCT
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dss-287	851	10	a	a	DET
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dss-287	851	12	,	,	PUNCT
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dss-287	851	21	.	.	PUNCT
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dss-287	852	2	,	,	PUNCT
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dss-287	852	6	:	:	PUNCT
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dss-287	852	8	-	-	PUNCT
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dss-287	852	12	.	.	PUNCT
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dss-287	853	6	(	(	PUNCT
dss-287	853	7	ed	ed	NOUN
dss-287	853	8	)	)	PUNCT
dss-287	853	9	,	,	PUNCT
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dss-287	853	11	telescope	telescope	NOUN
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dss-287	853	13	,	,	PUNCT
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dss-287	854	6	:	:	PUNCT
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dss-287	855	15	:	:	PUNCT
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dss-287	856	6	:	:	PUNCT
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dss-287	857	12	telescope	telescope	NOUN
dss-287	857	13	:	:	PUNCT
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dss-287	859	6	:	:	PUNCT
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dss-287	860	11	:	:	PUNCT
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dss-287	861	8	-	-	PUNCT
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dss-287	861	12	.	.	PUNCT
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dss-287	863	10	-	-	SYM
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dss-287	864	9	,	,	PUNCT
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dss-287	864	11	,	,	PUNCT
dss-287	864	12	usa	usa	PROPN
dss-287	864	13	:	:	PUNCT
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dss-287	864	15	-	-	PUNCT
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dss-287	864	19	.	.	PUNCT
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dss-287	865	3	]	]	PUNCT
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dss-287	865	5	g.	g.	PROPN
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dss-287	865	14	telescope	telescope	NOUN
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dss-287	865	17	.	.	PROPN
dss-287	865	18	3	3	X
dss-287	865	19	.	.	X
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dss-287	865	22	va	va	PROPN
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dss-287	865	24	usa	usa	PROPN
dss-287	865	25	:	:	PUNCT
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dss-287	866	3	]	]	X
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dss-287	866	8	a	a	DET
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dss-287	866	11	.	.	PUNCT
dss-287	867	1	richmond	richmond	PROPN
dss-287	867	2	,	,	PUNCT
dss-287	867	3	va	va	PROPN
dss-287	867	4	,	,	PUNCT
dss-287	867	5	usa	usa	PROPN
dss-287	867	6	:	:	PUNCT
dss-287	867	7	willmann	willmann	NOUN
dss-287	867	8	-	-	PUNCT
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dss-287	867	10	,	,	PUNCT
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dss-287	868	3	]	]	PUNCT
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dss-287	868	9	telescopes	telescope	NOUN
dss-287	868	10	.	.	PUNCT
dss-287	869	1	richmond	richmond	PROPN
dss-287	869	2	,	,	PUNCT
dss-287	869	3	va	va	PROPN
dss-287	869	4	,	,	PUNCT
dss-287	869	5	usa	usa	PROPN
dss-287	869	6	:	:	PUNCT
dss-287	869	7	willmann	willmann	NOUN
dss-287	869	8	-	-	PUNCT
dss-287	869	9	bell	bell	NOUN
dss-287	869	10	,	,	PUNCT
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dss-287	869	12	.	.	PUNCT
dss-287	870	1	[	[	X
dss-287	870	2	23	23	NUM
dss-287	870	3	]	]	PUNCT
dss-287	870	4	j.	j.	PROPN
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dss-287	870	7	the	the	DET
dss-287	870	8	schupmann	schupmann	PROPN
dss-287	870	9	telescope	telescope	PROPN
dss-287	870	10	.	.	PUNCT
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dss-287	871	2	,	,	PUNCT
dss-287	871	3	va	va	PROPN
dss-287	871	4	,	,	PUNCT
dss-287	871	5	usa	usa	PROPN
dss-287	871	6	:	:	PUNCT
dss-287	871	7	willmann	willmann	NOUN
dss-287	871	8	-	-	PUNCT
dss-287	871	9	bell	bell	NOUN
dss-287	871	10	,	,	PUNCT
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dss-287	871	12	.	.	PUNCT
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dss-287	872	3	]	]	X
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dss-287	872	7	,	,	PUNCT
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dss-287	872	13	,	,	PUNCT
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dss-287	872	15	proc	proc	NOUN
dss-287	872	16	.	.	PUNCT
dss-287	873	1	nat	nat	PROPN
dss-287	873	2	.	.	PUNCT
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dss-287	874	2	.	.	PUNCT
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dss-287	875	2	.	.	PROPN
dss-287	875	3	,	,	PUNCT
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dss-287	875	7	,	,	PUNCT
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dss-287	875	9	.	.	NOUN
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dss-287	875	11	,	,	PUNCT
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dss-287	875	13	.	.	PUNCT
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dss-287	876	2	-	-	SYM
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dss-287	876	4	,	,	PUNCT
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dss-287	876	6	.	.	PUNCT
dss-287	877	1	[	[	X
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dss-287	877	3	]	]	PUNCT
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dss-287	877	25	,	,	PUNCT
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dss-287	877	31	,	,	PUNCT
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dss-287	877	43	,	,	PUNCT
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dss-287	877	45	.	.	PUNCT
dss-287	878	1	[	[	X
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dss-287	878	3	]	]	PUNCT
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dss-287	878	12	:	:	PUNCT
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dss-287	878	14	,	,	PUNCT
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dss-287	878	16	,	,	PUNCT
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dss-287	878	18	,	,	PUNCT
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dss-287	878	21	,	,	PUNCT
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dss-287	878	23	in	in	ADP
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dss-287	878	25	.	.	PUNCT
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dss-287	880	2	-	-	SYM
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dss-287	880	4	.	.	PUNCT
dss-287	881	1	[	[	X
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dss-287	881	3	]	]	PUNCT
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dss-287	881	5	w.	w.	PROPN
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dss-287	882	22	:	:	PUNCT
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dss-287	884	11	,	,	PUNCT
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dss-287	884	17	.	.	PUNCT
dss-287	885	1	[	[	X
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dss-287	885	3	]	]	X
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dss-287	885	23	:	:	PUNCT
dss-287	885	24	optical	optical	ADJ
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dss-287	886	3	,	,	PUNCT
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dss-287	887	1	[	[	X
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dss-287	887	4	s.	s.	PROPN
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dss-287	887	9	.	.	PROPN
dss-287	887	10	,	,	PUNCT
dss-287	887	11	"	"	PUNCT
dss-287	887	12	the	the	DET
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dss-287	887	18	-	-	PUNCT
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dss-287	887	21	-	-	PUNCT
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dss-287	887	26	telescopes	telescope	NOUN
dss-287	887	27	,	,	PUNCT
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dss-287	887	29	in	in	ADP
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dss-287	887	42	telescopes	telescope	NOUN
dss-287	887	43	vii	vii	PROPN
dss-287	887	44	;	;	PUNCT
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dss-287	888	45	,	,	PUNCT
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dss-287	889	1	[	[	X
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dss-287	891	1	[	[	X
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dss-287	893	2	.	.	PUNCT
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dss-287	894	2	.	.	PUNCT
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dss-287	894	9	.	.	NOUN
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dss-287	894	11	,	,	PUNCT
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dss-287	894	14	,	,	PUNCT
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dss-287	895	3	]	]	PUNCT
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dss-287	895	36	.	.	PUNCT
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dss-287	896	2	-	-	SYM
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dss-287	896	4	,	,	PUNCT
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dss-287	896	6	.	.	PUNCT
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dss-287	897	3	]	]	X
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dss-287	897	9	,	,	PUNCT
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dss-287	897	33	,	,	PUNCT
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dss-287	898	3	.	.	PROPN
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dss-287	899	2	,	,	PUNCT
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dss-287	899	8	.	.	PUNCT
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dss-287	900	2	-	-	SYM
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dss-287	900	8	.	.	PUNCT
dss-287	901	1	[	[	X
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dss-287	901	3	]	]	X
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dss-287	901	41	,	,	PUNCT
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dss-287	901	44	.	.	PUNCT
dss-287	902	1	[	[	X
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dss-287	902	18	oxford	oxford	PROPN
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dss-287	902	21	,	,	PUNCT
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dss-287	903	19	,	,	PUNCT
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dss-287	904	8	.	.	PUNCT
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dss-287	905	2	-	-	SYM
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dss-287	905	4	,	,	PUNCT
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dss-287	905	8	.	.	PUNCT
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dss-287	909	12	-	-	PUNCT
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dss-287	916	2	online	online	ADV
dss-287	916	3	:	:	PUNCT
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dss-287	917	2	[	[	X
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dss-287	917	4	]	]	PUNCT
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dss-287	917	8	hobbyists	hobbyist	NOUN
dss-287	917	9	.	.	PUNCT
dss-287	918	1	available	available	ADJ
dss-287	918	2	online	online	ADV
dss-287	918	3	:	:	PUNCT
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dss-287	919	3	]	]	X
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dss-287	919	8	.	.	PUNCT
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dss-287	920	2	,	,	PUNCT
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dss-287	920	6	dyi	dyi	PROPN
dss-287	920	7	forum	forum	PROPN
dss-287	920	8	.	.	PUNCT
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dss-287	921	2	online	online	ADV
dss-287	921	3	:	:	PUNCT
dss-287	922	1	atm	atm	ADJ
dss-287	922	2	,	,	PUNCT
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dss-287	922	4	and	and	CCONJ
dss-287	922	5	diy	diy	NOUN
dss-287	922	6	forum	forum	NOUN
dss-287	922	7	cloudy	cloudy	ADJ
dss-287	922	8	nights	night	NOUN
dss-287	922	9	.	.	PUNCT
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dss-287	923	3	]	]	X
dss-287	923	4	h.	h.	PROPN
dss-287	923	5	lippershey	lippershey	PROPN
dss-287	923	6	,	,	PUNCT
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dss-287	923	8	for	for	ADP
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dss-287	923	11	,	,	PUNCT
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dss-287	923	13	.	.	PUNCT
dss-287	924	1	[	[	X
dss-287	924	2	45	45	NUM
dss-287	924	3	]	]	PUNCT
dss-287	924	4	i.	i.	PROPN
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dss-287	924	6	,	,	PUNCT
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dss-287	924	8	:	:	PUNCT
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dss-287	924	10	,	,	PUNCT
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dss-287	924	18	,	,	PUNCT
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dss-287	924	20	and	and	CCONJ
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dss-287	924	22	of	of	ADP
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dss-287	924	24	,	,	PUNCT
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dss-287	924	28	.	.	PUNCT
dss-287	925	1	[	[	X
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dss-287	925	3	]	]	X
dss-287	925	4	j.	j.	PROPN
dss-287	925	5	dolland	dolland	PROPN
dss-287	925	6	,	,	PUNCT
dss-287	925	7	"	"	PUNCT
dss-287	925	8	on	on	ADP
dss-287	925	9	the	the	DET
dss-287	925	10	achromatic	achromatic	ADJ
dss-287	925	11	telescope	telescope	NOUN
dss-287	925	12	"	"	PUNCT
dss-287	925	13	,	,	PUNCT
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dss-287	925	16	,	,	PUNCT
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dss-287	925	18	.	.	PUNCT
dss-287	926	1	[	[	X
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dss-287	926	3	]	]	X
dss-287	926	4	c.	c.	PROPN
dss-287	926	5	m.	m.	PROPN
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dss-287	926	7	,	,	PUNCT
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dss-287	926	9	in	in	ADP
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dss-287	926	12	,	,	PUNCT
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dss-287	926	14	.	.	PUNCT
dss-287	927	1	[	[	X
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dss-287	927	3	]	]	PUNCT
dss-287	927	4	j.	j.	PROPN
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dss-287	927	6	,	,	PUNCT
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dss-287	927	9	in	in	ADP
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dss-287	927	11	,	,	PUNCT
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dss-287	927	13	.	.	PUNCT
dss-287	928	1	[	[	X
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dss-287	928	3	]	]	PUNCT
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dss-287	928	6	,	,	PUNCT
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dss-287	928	8	wolf	wolf	PROPN
dss-287	928	9	,	,	PUNCT
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dss-287	928	13	,	,	PUNCT
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dss-287	928	16	.	.	PROPN
dss-287	928	17	,	,	PUNCT
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dss-287	928	19	.	.	PUNCT
dss-287	929	1	[	[	X
dss-287	929	2	50	50	NUM
dss-287	929	3	]	]	PUNCT
dss-287	929	4	e.	e.	PROPN
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dss-287	929	8	,	,	PUNCT
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dss-287	929	10	ed	ed	NOUN
dss-287	929	11	.	.	PROPN
dss-287	929	12	,	,	PUNCT
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dss-287	929	16	.	.	PUNCT
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dss-287	930	9	,	,	PUNCT
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dss-287	930	13	,	,	PUNCT
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dss-287	930	16	,	,	PUNCT
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dss-287	930	18	.	.	PUNCT
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dss-287	931	3	]	]	PUNCT
dss-287	931	4	j.	j.	PROPN
dss-287	931	5	b.	b.	PROPN
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dss-287	931	7	,	,	PUNCT
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dss-287	931	10	's	's	PART
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dss-287	931	12	,	,	PUNCT
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dss-287	931	15	,	,	PUNCT
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dss-287	931	17	.	.	PUNCT
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dss-287	932	3	]	]	PUNCT
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dss-287	932	5	s	s	PART
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dss-287	932	7	,	,	PUNCT
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dss-287	932	30	;	;	PUNCT
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dss-287	933	10	,	,	PUNCT
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dss-287	933	17	,	,	PUNCT
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dss-287	933	19	.	.	PUNCT
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dss-287	934	3	]	]	X
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dss-287	934	6	,	,	PUNCT
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dss-287	934	9	and	and	CCONJ
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dss-287	934	14	,	,	PUNCT
dss-287	934	15	cambridge	cambridge	PROPN
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dss-287	934	18	,	,	PUNCT
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dss-287	934	20	.	.	PUNCT
dss-287	935	1	[	[	X
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dss-287	935	3	]	]	PUNCT
dss-287	935	4	j.	j.	PROPN
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dss-287	935	6	,	,	PUNCT
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dss-287	935	8	promota	promota	PROPN
dss-287	935	9	,	,	PUNCT
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dss-287	935	11	,	,	PUNCT
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dss-287	935	13	.	.	PUNCT
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dss-287	936	11	,	,	PUNCT
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dss-287	936	15	,	,	PUNCT
dss-287	936	16	new	new	PROPN
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dss-287	936	20	.	.	PUNCT
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dss-287	937	3	]	]	PUNCT
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dss-287	937	6	,	,	PUNCT
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dss-287	937	8	of	of	ADP
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dss-287	937	10	:	:	PUNCT
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dss-287	937	12	i	i	PRON
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dss-287	937	20	,	,	PUNCT
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dss-287	937	24	,	,	PUNCT
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dss-287	937	33	,	,	PUNCT
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dss-287	937	35	.	.	PUNCT
dss-287	938	1	[	[	X
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dss-287	938	3	]	]	PUNCT
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dss-287	938	13	,	,	PUNCT
dss-287	938	14	oxford	oxford	PROPN
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dss-287	938	17	;	;	PUNCT
dss-287	938	18	,	,	PUNCT
dss-287	938	19	1st	1st	PROPN
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dss-287	938	21	,	,	PUNCT
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dss-287	938	23	.	.	PUNCT
dss-287	939	1	[	[	X
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dss-287	939	3	]	]	PUNCT
dss-287	939	4	b.	b.	PROPN
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dss-287	939	6	,	,	PUNCT
dss-287	939	7	"	"	PUNCT
dss-287	939	8	ein	ein	PROPN
dss-287	939	9	lichtstarkes	lichtstarke	VERB
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dss-287	939	12	"	"	PUNCT
dss-287	939	13	,	,	PUNCT
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dss-287	939	18	in	in	ADP
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dss-287	939	20	,	,	PUNCT
dss-287	939	21	7(36	7(36	NUM
dss-287	939	22	)	)	PUNCT
dss-287	939	23	,	,	PUNCT
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dss-287	940	1	15	15	NUM
dss-287	940	2	-	-	SYM
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dss-287	940	4	,	,	PUNCT
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dss-287	942	2	-	-	SYM
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dss-287	942	4	,	,	PUNCT
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dss-287	942	6	.	.	PUNCT
dss-287	943	1	[	[	X
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dss-287	943	3	]	]	PUNCT
dss-287	943	4	w.	w.	PROPN
dss-287	943	5	j.	j.	PROPN
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dss-287	943	7	,	,	PUNCT
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dss-287	943	11	,	,	PUNCT
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dss-287	943	13	edition	edition	NOUN
dss-287	943	14	,	,	PUNCT
dss-287	943	15	mcgraw	mcgraw	PROPN
dss-287	943	16	-	-	PUNCT
dss-287	943	17	hill	hill	NOUN
dss-287	943	18	,	,	PUNCT
dss-287	943	19	2007	2007	NUM
dss-287	943	20	.	.	PUNCT
dss-287	944	1	[	[	X
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dss-287	944	3	]	]	PUNCT
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dss-287	944	5	laikin	laikin	PROPN
dss-287	944	6	,	,	PUNCT
dss-287	944	7	lens	lens	NOUN
dss-287	944	8	design	design	NOUN
dss-287	944	9	,	,	PUNCT
dss-287	944	10	crc	crc	NOUN
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dss-287	944	12	,	,	PUNCT
dss-287	944	13	5th	5th	ADJ
dss-287	944	14	edition	edition	NOUN
dss-287	944	15	,	,	PUNCT
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dss-287	944	17	.	.	PUNCT
dss-287	945	1	[	[	X
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dss-287	945	3	]	]	PUNCT
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dss-287	945	5	kingslake	kingslake	NOUN
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dss-287	945	8	system	system	NOUN
dss-287	945	9	design,1st	design,1st	PROPN
dss-287	945	10	edition	edition	NOUN
dss-287	945	11	,	,	PUNCT
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dss-287	945	14	,	,	PUNCT
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dss-287	945	16	.	.	PUNCT
dss-287	946	1	dss	dss	NOUN
dss-287	946	2	vol	vol	NOUN
dss-287	946	3	.	.	PROPN
dss-287	947	1	6	6	NUM
dss-287	947	2	,	,	PUNCT
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dss-287	947	4	.	.	NOUN
dss-287	947	5	1	1	NUM
dss-287	947	6	,	,	PUNCT
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dss-287	947	8	,	,	PUNCT
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dss-287	947	10	-	-	SYM
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dss-287	948	1	[	[	X
dss-287	948	2	65	65	NUM
dss-287	948	3	]	]	X
dss-287	948	4	r.	r.	PROPN
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dss-287	948	7	[	[	X
dss-287	948	8	et	et	NOUN
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dss-287	948	12	,	,	PUNCT
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dss-287	948	16	:	:	PUNCT
dss-287	948	17	an	an	DET
dss-287	948	18	interesting	interesting	ADJ
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dss-287	948	25	and	and	CCONJ
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dss-287	948	30	of	of	ADP
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dss-287	948	38	:	:	PUNCT
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dss-287	948	41	,	,	PUNCT
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dss-287	948	43	,	,	PUNCT
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dss-287	948	46	,	,	PUNCT
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dss-287	948	54	"	"	PUNCT
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dss-287	949	1	barcelona	barcelona	PROPN
dss-287	949	2	,	,	PUNCT
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dss-287	949	4	.	.	PUNCT
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dss-287	950	3	]	]	PUNCT
dss-287	950	4	m.	m.	PROPN
dss-287	950	5	w.	w.	PROPN
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dss-287	950	7	,	,	PUNCT
dss-287	950	8	a.	a.	PROPN
dss-287	950	9	b.	b.	PROPN
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dss-287	950	13	h.	h.	PROPN
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dss-287	950	26	of	of	ADP
dss-287	950	27	the	the	DET
dss-287	950	28	maksutov	maksutov	NOUN
dss-287	950	29	-	-	PUNCT
dss-287	950	30	cassegrain	cassegrain	NOUN
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dss-287	950	32	,	,	PUNCT
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dss-287	950	36	-	-	PUNCT
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dss-287	950	42	applied	applied	ADJ
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dss-287	950	44	,	,	PUNCT
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dss-287	950	46	.	.	PROPN
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dss-287	950	48	,	,	PUNCT
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dss-287	950	52	,	,	PUNCT
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dss-287	950	54	.	.	PUNCT
dss-287	951	1	[	[	X
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dss-287	951	3	]	]	X
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dss-287	951	18	obscuration	obscuration	NOUN
dss-287	951	19	telescope	telescope	NOUN
dss-287	951	20	using	use	VERB
dss-287	951	21	zemax	zemax	PROPN
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dss-287	951	23	,	,	PUNCT
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dss-287	951	25	ibn	ibn	PROPN
dss-287	951	26	al	al	PROPN
dss-287	951	27	-	-	PUNCT
dss-287	951	28	haitham	haitham	PROPN
dss-287	951	29	journal	journal	PROPN
dss-287	951	30	for	for	ADP
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dss-287	951	34	sciences	science	NOUN
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dss-287	951	37	.	.	PROPN
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dss-287	951	39	,	,	PUNCT
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dss-287	951	41	.	.	NOUN
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dss-287	951	43	,	,	PUNCT
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dss-287	951	45	.	.	PUNCT
dss-287	952	1	[	[	X
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dss-287	952	3	]	]	PUNCT
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dss-287	952	5	b.	b.	PROPN
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dss-287	952	9	a	a	DET
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dss-287	952	22	,	,	PUNCT
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dss-287	952	26	of	of	ADP
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dss-287	952	33	.	.	PROPN
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dss-287	952	39	,	,	PUNCT
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dss-287	952	41	.	.	PUNCT
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dss-287	953	2	-	-	SYM
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dss-287	953	4	,	,	PUNCT
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dss-287	953	6	.	.	PUNCT
dss-287	954	1	[	[	X
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dss-287	954	3	]	]	PUNCT
dss-287	954	4	a.	a.	PROPN
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dss-287	954	8	a.	a.	PROPN
dss-287	954	9	b.	b.	PROPN
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dss-287	954	46	,	,	PUNCT
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dss-287	958	7	:	:	PUNCT
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dss-287	958	9	1	1	NUM
dss-287	958	10	:	:	PUNCT
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dss-287	958	12	and	and	CCONJ
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dss-287	958	14	.	.	PUNCT
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dss-287	959	2	,	,	PUNCT
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dss-287	960	4	r.	r.	PROPN
dss-287	960	5	s.	s.	PROPN
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dss-287	960	9	and	and	CCONJ
dss-287	960	10	physical	physical	ADJ
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dss-287	961	1	london	london	PROPN
dss-287	961	2	:	:	PUNCT
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dss-287	961	4	,	,	PUNCT
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dss-287	962	20	-	-	SYM
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dss-287	963	1	[	[	X
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dss-287	963	18	-	-	SYM
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dss-287	963	20	,	,	PUNCT
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dss-287	964	8	newtonian	newtonian	ADJ
dss-287	964	9	aberrations	aberration	NOUN
dss-287	964	10	,	,	PUNCT
dss-287	964	11	"	"	PUNCT
dss-287	964	12	telescope	telescope	NOUN
dss-287	964	13	making	make	VERB
dss-287	964	14	12	12	NUM
dss-287	964	15	,	,	PUNCT
dss-287	964	16	4	4	NUM
dss-287	964	17	-	-	SYM
dss-287	964	18	13	13	NUM
dss-287	964	19	,	,	PUNCT
dss-287	964	20	1981	1981	NUM
dss-287	964	21	.	.	PUNCT
dss-287	965	1	[	[	X
dss-287	965	2	76	76	NUM
dss-287	965	3	]	]	X
dss-287	965	4	w.	w.	PROPN
dss-287	965	5	t.	t.	PROPN
dss-287	965	6	peters	peters	PROPN
dss-287	965	7	,	,	PUNCT
dss-287	965	8	r.	r.	PROPN
dss-287	965	9	pike	pike	NOUN
dss-287	965	10	,	,	PUNCT
dss-287	965	11	"	"	PUNCT
dss-287	965	12	the	the	DET
dss-287	965	13	size	size	NOUN
dss-287	965	14	of	of	ADP
dss-287	965	15	the	the	DET
dss-287	965	16	newtonian	newtonian	ADJ
dss-287	965	17	diagonal	diagonal	ADJ
dss-287	965	18	,	,	PUNCT
dss-287	965	19	"	"	PUNCT
dss-287	965	20	sky	sky	NOUN
dss-287	965	21	and	and	CCONJ
dss-287	965	22	telescope,220	telescope,220	NOUN
dss-287	965	23	-	-	PUNCT
dss-287	965	24	223	223	NUM
dss-287	965	25	,	,	PUNCT
dss-287	965	26	1977	1977	NUM
dss-287	965	27	.	.	PUNCT
dss-287	966	1	[	[	X
dss-287	966	2	77	77	NUM
dss-287	966	3	]	]	X
dss-287	966	4	d.	d.	PROPN
dss-287	966	5	e.	e.	PROPN
dss-287	966	6	allen	allen	PROPN
dss-287	966	7	,	,	PUNCT
dss-287	966	8	"	"	PUNCT
dss-287	966	9	updating	update	VERB
dss-287	966	10	newtonian	newtonian	ADJ
dss-287	966	11	collimation	collimation	NOUN
dss-287	966	12	,	,	PUNCT
dss-287	966	13	"	"	PUNCT
dss-287	966	14	telescope	telescope	NOUN
dss-287	966	15	making	make	VERB
dss-287	966	16	22	22	NUM
dss-287	966	17	,	,	PUNCT
dss-287	966	18	4	4	NUM
dss-287	966	19	-	-	SYM
dss-287	966	20	8	8	NUM
dss-287	966	21	,	,	PUNCT
dss-287	966	22	1984	1984	NUM
dss-287	966	23	.	.	PUNCT
dss-287	967	1	[	[	X
dss-287	967	2	78	78	NUM
dss-287	967	3	]	]	PUNCT
dss-287	967	4	r.	r.	PROPN
dss-287	967	5	k.	k.	PROPN
dss-287	967	6	dakin	dakin	PROPN
dss-287	967	7	,	,	PUNCT
dss-287	967	8	"	"	PUNCT
dss-287	967	9	placing	place	VERB
dss-287	967	10	and	and	CCONJ
dss-287	967	11	aligning	align	VERB
dss-287	967	12	the	the	DET
dss-287	967	13	newtonian	newtonian	ADJ
dss-287	967	14	diagonal	diagonal	ADJ
dss-287	967	15	,	,	PUNCT
dss-287	967	16	"	"	PUNCT
dss-287	967	17	sky	sky	NOUN
dss-287	967	18	and	and	CCONJ
dss-287	967	19	telescope	telescope	NOUN
dss-287	967	20	,	,	PUNCT
dss-287	967	21	december	december	PROPN
dss-287	967	22	1962	1962	NUM
dss-287	967	23	,	,	PUNCT
dss-287	967	24	[	[	X
dss-287	967	25	79	79	NUM
dss-287	967	26	]	]	X
dss-287	967	27	f.	f.	PROPN
dss-287	967	28	b.	b.	PROPN
dss-287	967	29	wright	wright	PROPN
dss-287	967	30	,	,	PUNCT
dss-287	967	31	"	"	PUNCT
dss-287	967	32	the	the	DET
dss-287	967	33	maksutov	maksutov	NOUN
dss-287	967	34	lens	lens	NOUN
dss-287	967	35	applied	apply	VERB
dss-287	967	36	to	to	ADP
dss-287	967	37	herschelian	herschelian	ADJ
dss-287	967	38	and	and	CCONJ
dss-287	967	39	newtonian	newtonian	ADJ
dss-287	967	40	telescopes	telescope	NOUN
dss-287	967	41	,	,	PUNCT
dss-287	967	42	"	"	PUNCT
dss-287	967	43	amateur	amateur	ADJ
dss-287	967	44	telescope	telescope	NOUN
dss-287	967	45	making	make	VERB
dss-287	967	46	book	book	NOUN
dss-287	967	47	iii	iii	PROPN
dss-287	967	48	,	,	PUNCT
dss-287	967	49	a.	a.	PROPN
dss-287	967	50	g.	g.	PROPN
dss-287	967	51	ingalls	ingalls	PROPN
dss-287	967	52	,	,	PUNCT
dss-287	967	53	ed	ed	NOUN
dss-287	967	54	.	.	PUNCT
dss-287	968	1	new	new	PROPN
dss-287	968	2	york	york	PROPN
dss-287	968	3	:	:	PUNCT
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dss-287	968	5	american	american	PROPN
dss-287	968	6	,	,	PUNCT
dss-287	968	7	574	574	NUM
dss-287	968	8	-	-	SYM
dss-287	968	9	580	580	NUM
dss-287	968	10	,	,	PUNCT
dss-287	968	11	1953	1953	NUM
dss-287	968	12	.	.	PUNCT
dss-287	969	1	[	[	X
dss-287	969	2	80	80	NUM
dss-287	969	3	]	]	PUNCT
dss-287	969	4	m.	m.	NOUN
dss-287	969	5	bottema	bottema	NOUN
dss-287	969	6	,	,	PUNCT
dss-287	969	7	r.	r.	PROPN
dss-287	969	8	a.	a.	PROPN
dss-287	969	9	woodruff	woodruff	PROPN
dss-287	969	10	,	,	PUNCT
dss-287	969	11	"	"	PUNCT
dss-287	969	12	third	third	ADJ
dss-287	969	13	order	order	NOUN
dss-287	969	14	aberrations	aberration	NOUN
dss-287	969	15	in	in	ADP
dss-287	969	16	cassegrain	cassegrain	NOUN
dss-287	969	17	type	type	NOUN
dss-287	969	18	telescopes	telescope	NOUN
dss-287	969	19	and	and	CCONJ
dss-287	969	20	coma	coma	NOUN
dss-287	969	21	correction	correction	NOUN
dss-287	969	22	in	in	ADP
dss-287	969	23	servo	servo	NOUN
dss-287	969	24	-	-	PUNCT
dss-287	969	25	stabilized	stabilize	VERB
dss-287	969	26	image	image	NOUN
dss-287	969	27	,	,	PUNCT
dss-287	969	28	"	"	PUNCT
dss-287	969	29	applied	apply	VERB
dss-287	969	30	optics	optic	NOUN
dss-287	969	31	10	10	NUM
dss-287	969	32	,	,	PUNCT
dss-287	969	33	300	300	NUM
dss-287	969	34	-	-	NUM
dss-287	969	35	303	303	NUM
dss-287	969	36	,	,	PUNCT
dss-287	969	37	1971	1971	NUM
dss-287	969	38	.	.	PUNCT
dss-287	970	1	[	[	X
dss-287	970	2	81	81	NUM
dss-287	970	3	]	]	PUNCT
dss-287	970	4	r.	r.	PROPN
dss-287	970	5	a.	a.	NOUN
dss-287	970	6	buchroeder	buchroeder	PROPN
dss-287	970	7	,	,	PUNCT
dss-287	970	8	"	"	PUNCT
dss-287	970	9	cassegrain	cassegrain	PROPN
dss-287	970	10	optical	optical	ADJ
dss-287	970	11	system	system	NOUN
dss-287	970	12	,	,	PUNCT
dss-287	970	13	"	"	PUNCT
dss-287	970	14	telescope	telescope	NOUN
dss-287	970	15	making	making	NOUN
dss-287	970	16	,	,	PUNCT
dss-287	970	17	1	1	NUM
dss-287	970	18	-	-	SYM
dss-287	970	19	3	3	NUM
dss-287	970	20	,	,	PUNCT
dss-287	970	21	10	10	NUM
dss-287	970	22	-	-	SYM
dss-287	970	23	12	12	NUM
dss-287	970	24	,	,	PUNCT
dss-287	970	25	1978	1978	NUM
dss-287	970	26	.	.	PUNCT
dss-287	971	1	[	[	X
dss-287	971	2	82	82	NUM
dss-287	971	3	]	]	X
dss-287	971	4	d.	d.	PROPN
dss-287	971	5	hawkins	hawkins	PROPN
dss-287	971	6	,	,	PUNCT
dss-287	971	7	e.	e.	PROPN
dss-287	971	8	h.	h.	PROPN
dss-287	971	9	linfoot	linfoot	PROPN
dss-287	971	10	,	,	PUNCT
dss-287	971	11	"	"	PUNCT
dss-287	971	12	an	an	DET
dss-287	971	13	improved	improved	ADJ
dss-287	971	14	type	type	NOUN
dss-287	971	15	of	of	ADP
dss-287	971	16	schmidt	schmidt	PROPN
dss-287	971	17	camera	camera	NOUN
dss-287	971	18	,	,	PUNCT
dss-287	971	19	"	"	PUNCT
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dss-287	971	22	of	of	ADP
dss-287	971	23	the	the	DET
dss-287	971	24	r.a.s	r.a.s	NOUN
dss-287	971	25	.	.	PROPN
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dss-287	971	27	,	,	PUNCT
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dss-287	971	29	.	.	PUNCT
dss-287	972	1	[	[	X
dss-287	972	2	83	83	NUM
dss-287	972	3	]	]	X
dss-287	972	4	e.	e.	PROPN
dss-287	972	5	h.	h.	PROPN
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dss-287	972	7	,	,	PUNCT
dss-287	972	8	"	"	PUNCT
dss-287	972	9	on	on	ADP
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dss-287	972	12	of	of	ADP
dss-287	972	13	the	the	DET
dss-287	972	14	schmidt	schmidt	PROPN
dss-287	972	15	camera	camera	NOUN
dss-287	972	16	,	,	PUNCT
dss-287	972	17	"	"	PUNCT
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dss-287	972	20	of	of	ADP
dss-287	972	21	the	the	DET
dss-287	972	22	r.a.s	r.a.s	NOUN
dss-287	972	23	.	.	PROPN
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dss-287	972	25	,	,	PUNCT
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dss-287	972	27	.	.	PUNCT
dss-287	973	1	[	[	X
dss-287	973	2	84	84	NUM
dss-287	973	3	]	]	PUNCT
dss-287	973	4	e.	e.	PROPN
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dss-287	973	7	,	,	PUNCT
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dss-287	973	10	in	in	ADP
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dss-287	973	12	.	.	PUNCT
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dss-287	974	2	:	:	PUNCT
dss-287	974	3	oxford	oxford	PROPN
dss-287	974	4	university	university	PROPN
dss-287	974	5	press	press	NOUN
dss-287	974	6	,	,	PUNCT
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dss-287	974	8	.	.	PUNCT
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dss-287	975	3	]	]	X
dss-287	975	4	r.	r.	PROPN
dss-287	975	5	r.	r.	PROPN
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dss-287	975	11	light	light	NOUN
dss-287	975	12	in	in	ADP
dss-287	975	13	cassegrain	cassegrain	NOUN
dss-287	975	14	telescopes	telescope	NOUN
dss-287	975	15	,	,	PUNCT
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dss-287	975	17	sky	sky	NOUN
dss-287	975	18	and	and	CCONJ
dss-287	975	19	telescope	telescope	NOUN
dss-287	975	20	,	,	PUNCT
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dss-287	975	22	.	.	PUNCT
dss-287	976	1	[	[	X
dss-287	976	2	86	86	NUM
dss-287	976	3	]	]	PUNCT
dss-287	976	4	r.	r.	PROPN
dss-287	976	5	d.	d.	PROPN
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dss-287	976	7	,	,	PUNCT
dss-287	976	8	"	"	PUNCT
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dss-287	976	12	schmidt	schmidt	PROPN
dss-287	976	13	cassegrain	cassegrain	NOUN
dss-287	976	14	telescope	telescope	NOUN
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dss-287	976	16	,	,	PUNCT
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dss-287	976	21	,	,	PUNCT
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dss-287	976	23	.	.	PUNCT
dss-287	977	1	[	[	X
dss-287	977	2	87	87	NUM
dss-287	977	3	]	]	PUNCT
dss-287	977	4	r.	r.	PROPN
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dss-287	977	7	,	,	PUNCT
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dss-287	977	9	compound	compound	NOUN
dss-287	977	10	schmidt	schmidt	PROPN
dss-287	977	11	cassegrain	cassegrain	NOUN
dss-287	977	12	telescope	telescope	NOUN
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dss-287	977	14	with	with	ADP
dss-287	977	15	nonzero	nonzero	PROPN
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dss-287	977	18	,	,	PUNCT
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dss-287	977	22	14	14	NUM
dss-287	977	23	,	,	PUNCT
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dss-287	977	25	.	.	PUNCT
dss-287	978	1	[	[	X
dss-287	978	2	88	88	NUM
dss-287	978	3	]	]	PUNCT
dss-287	978	4	e.	e.	PROPN
dss-287	978	5	h.	h.	PROPN
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dss-287	978	7	,	,	PUNCT
dss-287	978	8	"	"	PUNCT
dss-287	978	9	the	the	DET
dss-287	978	10	schmidt	schmidt	PROPN
dss-287	978	11	cassegrain	cassegrain	PROPN
dss-287	978	12	systems	system	NOUN
dss-287	978	13	and	and	CCONJ
dss-287	978	14	their	their	PRON
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dss-287	978	16	to	to	ADP
dss-287	978	17	astronomical	astronomical	ADJ
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dss-287	978	19	,	,	PUNCT
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dss-287	978	23	of	of	ADP
dss-287	978	24	the	the	DET
dss-287	978	25	r.a.s	r.a.s	NOUN
dss-287	978	26	.	.	PROPN
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dss-287	978	28	,	,	PUNCT
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dss-287	978	30	.	.	PUNCT
dss-287	979	1	dss	dss	NOUN
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dss-287	979	3	.	.	PROPN
dss-287	980	1	6	6	NUM
dss-287	980	2	,	,	PUNCT
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dss-287	980	6	,	,	PUNCT
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dss-287	980	8	,	,	PUNCT
dss-287	980	9	pp.49	pp.49	NOUN
dss-287	980	10	-	-	SYM
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dss-287	981	1	[	[	SYM
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dss-287	981	3	]	]	PUNCT
dss-287	981	4	a.	a.	PROPN
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dss-287	981	7	,	,	PUNCT
dss-287	981	8	"	"	PUNCT
dss-287	981	9	a	a	DET
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dss-287	981	14	with	with	ADP
dss-287	981	15	a	a	DET
dss-287	981	16	flat	flat	ADJ
dss-287	981	17	field	field	NOUN
dss-287	981	18	,	,	PUNCT
dss-287	981	19	"	"	PUNCT
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dss-287	981	21	and	and	CCONJ
dss-287	981	22	telescope	telescope	NOUN
dss-287	981	23	,	,	PUNCT
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dss-287	981	25	and	and	CCONJ
dss-287	981	26	june	june	PROPN
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dss-287	981	28	.	.	PUNCT
dss-287	982	1	[	[	X
dss-287	982	2	90	90	NUM
dss-287	982	3	]	]	PUNCT
dss-287	982	4	a.	a.	NOUN
dss-287	982	5	bouwers	bouwer	NOUN
dss-287	982	6	,	,	PUNCT
dss-287	982	7	achievements	achievement	NOUN
dss-287	982	8	in	in	ADP
dss-287	982	9	optics	optic	NOUN
dss-287	982	10	.	.	PUNCT
dss-287	983	1	new	new	PROPN
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dss-287	983	3	:	:	PUNCT
dss-287	983	4	elsevier	elsevier	NOUN
dss-287	983	5	,	,	PUNCT
dss-287	983	6	1946	1946	NUM
dss-287	983	7	.	.	PUNCT
dss-287	984	1	[	[	X
dss-287	984	2	91	91	NUM
dss-287	984	3	]	]	X
dss-287	984	4	b.	b.	PROPN
dss-287	984	5	sutherland	sutherland	PROPN
dss-287	984	6	,	,	PUNCT
dss-287	984	7	"	"	PUNCT
dss-287	984	8	designing	design	VERB
dss-287	984	9	maksutov	maksutov	NOUN
dss-287	984	10	telescopes	telescope	NOUN
dss-287	984	11	from	from	ADP
dss-287	984	12	scratch	scratch	NOUN
dss-287	984	13	,	,	PUNCT
dss-287	984	14	"	"	PUNCT
dss-287	984	15	telescope	telescope	NOUN
dss-287	984	16	making	make	VERB
dss-287	984	17	14	14	NUM
dss-287	984	18	,	,	PUNCT
dss-287	984	19	1981	1981	NUM
dss-287	984	20	.	.	PUNCT
dss-287	985	1	[	[	X
dss-287	985	2	92	92	NUM
dss-287	985	3	]	]	PUNCT
dss-287	985	4	j.	j.	PROPN
dss-287	985	5	gregory	gregory	PROPN
dss-287	985	6	,	,	PUNCT
dss-287	985	7	"	"	PUNCT
dss-287	985	8	a	a	DET
dss-287	985	9	cassegrainian	cassegrainian	ADJ
dss-287	985	10	-	-	PUNCT
dss-287	985	11	maksutov	maksutov	NOUN
dss-287	985	12	telescope	telescope	NOUN
dss-287	985	13	design	design	NOUN
dss-287	985	14	for	for	ADP
dss-287	985	15	the	the	DET
dss-287	985	16	amateur	amateur	NOUN
dss-287	985	17	,	,	PUNCT
dss-287	985	18	"	"	PUNCT
dss-287	985	19	sky	sky	NOUN
dss-287	985	20	and	and	CCONJ
dss-287	985	21	telescope	telescope	NOUN
dss-287	985	22	,	,	PUNCT
dss-287	985	23	march	march	PROPN
dss-287	985	24	1957	1957	NUM
dss-287	985	25	.	.	PUNCT
dss-287	986	1	[	[	X
dss-287	986	2	93	93	NUM
dss-287	986	3	]	]	PUNCT
dss-287	986	4	r.	r.	PROPN
dss-287	986	5	d.	d.	PROPN
dss-287	986	6	sigler	sigler	PROPN
dss-287	986	7	,	,	PUNCT
dss-287	986	8	"	"	PUNCT
dss-287	986	9	a	a	DET
dss-287	986	10	high	high	ADJ
dss-287	986	11	performance	performance	NOUN
dss-287	986	12	maksutov	maksutov	NOUN
dss-287	986	13	telescope	telescope	NOUN
dss-287	986	14	,	,	PUNCT
dss-287	986	15	"	"	PUNCT
dss-287	986	16	sky	sky	NOUN
dss-287	986	17	and	and	CCONJ
dss-287	986	18	telescope	telescope	NOUN
dss-287	986	19	,	,	PUNCT
dss-287	986	20	sept	sept	PROPN
dss-287	986	21	.	.	PROPN
dss-287	986	22	1975	1975	NUM
dss-287	986	23	.	.	PUNCT
dss-287	987	1	[	[	X
dss-287	987	2	94	94	NUM
dss-287	987	3	]	]	PUNCT
dss-287	987	4	a.	a.	NOUN
dss-287	987	5	kutterm"der	kutterm"der	PROPN
dss-287	987	6	schiefspiegler	schiefspiegler	NOUN
dss-287	987	7	.	.	PUNCT
dss-287	987	8	"	"	PUNCT
dss-287	988	1	sterne	sterne	PROPN
dss-287	988	2	und	und	PROPN
dss-287	988	3	weltraum	weltraum	PROPN
dss-287	988	4	,	,	PUNCT
dss-287	988	5	jan	jan	PROPN
dss-287	988	6	.	.	PROPN
dss-287	988	7	1965	1965	NUM
dss-287	988	8	.	.	PUNCT
dss-287	989	1	[	[	X
dss-287	989	2	95	95	NUM
dss-287	989	3	]	]	X
dss-287	989	4	o.	o.	PROPN
dss-287	989	5	r.	r.	PROPN
dss-287	989	6	knab	knab	PROPN
dss-287	989	7	,	,	PUNCT
dss-287	989	8	"	"	PUNCT
dss-287	989	9	making	make	VERB
dss-287	989	10	a	a	DET
dss-287	989	11	three	three	NUM
dss-287	989	12	-	-	PUNCT
dss-287	989	13	inch	inch	NOUN
dss-287	989	14	schiefspiegler	schiefspiegler	NOUN
dss-287	989	15	,	,	PUNCT
dss-287	989	16	"	"	PUNCT
dss-287	989	17	telescope	telescope	NOUN
dss-287	989	18	making	make	VERB
dss-287	989	19	1	1	NUM
dss-287	989	20	,	,	PUNCT
dss-287	989	21	1978	1978	NUM
dss-287	989	22	.	.	PUNCT
dss-287	990	1	[	[	X
dss-287	990	2	96	96	NUM
dss-287	990	3	]	]	X
dss-287	990	4	r.	r.	PROPN
dss-287	990	5	a.	a.	PROPN
dss-287	990	6	schmidt	schmidt	PROPN
dss-287	990	7	,	,	PUNCT
dss-287	990	8	"	"	PUNCT
dss-287	990	9	constructing	construct	VERB
dss-287	990	10	a	a	DET
dss-287	990	11	10	10	NUM
dss-287	990	12	-	-	PUNCT
dss-287	990	13	inch	inch	NOUN
dss-287	990	14	kutter	kutter	PROPN
dss-287	990	15	schiefspiegler	schiefspiegler	NOUN
dss-287	990	16	,	,	PUNCT
dss-287	990	17	"	"	PUNCT
dss-287	990	18	telescope	telescope	NOUN
dss-287	990	19	making	make	VERB
dss-287	990	20	4,1979	4,1979	NOUN
dss-287	990	21	.	.	PUNCT
dss-287	991	1	[	[	X
dss-287	991	2	97	97	NUM
dss-287	991	3	]	]	PUNCT
dss-287	991	4	a.	a.	NOUN
dss-287	991	5	kutter	kutter	PROPN
dss-287	991	6	,	,	PUNCT
dss-287	991	7	"	"	PUNCT
dss-287	991	8	a	a	DET
dss-287	991	9	new	new	ADJ
dss-287	991	10	three	three	NUM
dss-287	991	11	-	-	PUNCT
dss-287	991	12	mirror	mirror	NOUN
dss-287	991	13	unobstructed	unobstructed	ADJ
dss-287	991	14	reflector	reflector	NOUN
dss-287	991	15	,	,	PUNCT
dss-287	991	16	"	"	PUNCT
dss-287	991	17	sky	sky	NOUN
dss-287	991	18	and	and	CCONJ
dss-287	991	19	telescope	telescope	NOUN
dss-287	991	20	,	,	PUNCT
dss-287	991	21	jan	jan	PROPN
dss-287	991	22	.	.	PROPN
dss-287	991	23	1975	1975	NUM
dss-287	991	24	.	.	PUNCT
dss-287	992	1	[	[	X
dss-287	992	2	98	98	NUM
dss-287	992	3	]	]	PUNCT
dss-287	992	4	a.	a.	NOUN
dss-287	992	5	l.	l.	PROPN
dss-287	992	6	woods	woods	PROPN
dss-287	992	7	,	,	PUNCT
dss-287	992	8	"	"	PUNCT
dss-287	992	9	building	build	VERB
dss-287	992	10	a	a	DET
dss-287	992	11	kutter	kutter	NOUN
dss-287	992	12	3	3	NUM
dss-287	992	13	-	-	PUNCT
dss-287	992	14	mirror	mirror	NOUN
dss-287	992	15	tri	tri	ADJ
dss-287	992	16	-	-	ADJ
dss-287	992	17	schiefspiegler	schiefspiegler	ADJ
dss-287	992	18	,	,	PUNCT
dss-287	992	19	"	"	PUNCT
dss-287	992	20	telescope	telescope	NOUN
dss-287	992	21	making	make	VERB
dss-287	992	22	16	16	NUM
dss-287	992	23	,	,	PUNCT
dss-287	992	24	1982	1982	NUM
dss-287	992	25	.	.	PUNCT
dss-287	993	1	[	[	X
dss-287	993	2	99	99	NUM
dss-287	993	3	]	]	PUNCT
dss-287	993	4	a.	a.	PROPN
dss-287	993	5	s.	s.	PROPN
dss-287	993	6	leonard	leonard	PROPN
dss-287	993	7	,	,	PUNCT
dss-287	993	8	"	"	PUNCT
dss-287	993	9	the	the	DET
dss-287	993	10	yolo	yolo	ADJ
dss-287	993	11	reflector	reflector	NOUN
dss-287	993	12	,	,	PUNCT
dss-287	993	13	"	"	PUNCT
dss-287	993	14	advanced	advanced	ADJ
dss-287	993	15	telescope	telescope	NOUN
dss-287	993	16	making	make	VERB
dss-287	993	17	techniques	technique	NOUN
dss-287	993	18	vol	vol	NOUN
dss-287	993	19	.	.	PROPN
dss-287	993	20	1	1	NUM
dss-287	993	21	,	,	PUNCT
dss-287	993	22	optics	optic	NOUN
dss-287	993	23	,	,	PUNCT
dss-287	993	24	a.	a.	NOUN
dss-287	993	25	mackintosh	mackintosh	PROPN
dss-287	993	26	,	,	PUNCT
dss-287	993	27	ed	ed	PROPN
dss-287	993	28	.	.	PUNCT
dss-287	994	1	richmond	richmond	PROPN
dss-287	994	2	,	,	PUNCT
dss-287	994	3	va	va	NOUN
dss-287	994	4	:	:	PUNCT
dss-287	994	5	willmann	willmann	ADJ
dss-287	994	6	-	-	PUNCT
dss-287	994	7	bell	bell	NOUN
dss-287	994	8	,	,	PUNCT
dss-287	994	9	1986	1986	NUM
dss-287	994	10	.	.	PUNCT
dss-287	995	1	[	[	X
dss-287	995	2	100	100	NUM
dss-287	995	3	]	]	PUNCT
dss-287	995	4	a.	a.	PROPN
dss-287	995	5	s.	s.	PROPN
dss-287	995	6	leonard	leonard	PROPN
dss-287	995	7	,	,	PUNCT
dss-287	995	8	"	"	PUNCT
dss-287	995	9	the	the	DET
dss-287	995	10	solano	solano	PROPN
dss-287	995	11	reflector	reflector	NOUN
dss-287	995	12	,	,	PUNCT
dss-287	995	13	"	"	PUNCT
dss-287	995	14	advanced	advanced	ADJ
dss-287	995	15	telescope	telescope	NOUN
dss-287	995	16	making	make	VERB
dss-287	995	17	techniques	technique	NOUN
dss-287	995	18	.	.	PUNCT
dss-287	996	1	vol	vol	NOUN
dss-287	996	2	.	.	PROPN
dss-287	997	1	1	1	NUM
dss-287	997	2	,	,	PUNCT
dss-287	997	3	optics	optic	NOUN
dss-287	997	4	,	,	PUNCT
dss-287	997	5	a.	a.	NOUN
dss-287	997	6	mackintosh	mackintosh	PROPN
dss-287	997	7	,	,	PUNCT
dss-287	998	1	ed	ed	PROPN
dss-287	998	2	.	.	PUNCT
dss-287	999	1	richmond	richmond	PROPN
dss-287	999	2	,	,	PUNCT
dss-287	999	3	va	va	NOUN
dss-287	999	4	:	:	PUNCT
dss-287	999	5	willmann	willmann	ADJ
dss-287	999	6	-	-	PUNCT
dss-287	999	7	bell	bell	NOUN
dss-287	999	8	,	,	PUNCT
dss-287	999	9	1986	1986	NUM
dss-287	999	10	.	.	PUNCT
dss-287	1000	1	[	[	X
dss-287	1000	2	101	101	NUM
dss-287	1000	3	]	]	PUNCT
dss-287	1000	4	r.	r.	PROPN
dss-287	1000	5	a.	a.	NOUN
dss-287	1000	6	buchroeder	buchroeder	PROPN
dss-287	1000	7	,	,	PUNCT
dss-287	1000	8	"	"	PUNCT
dss-287	1000	9	a	a	DET
dss-287	1000	10	new	new	ADJ
dss-287	1000	11	three	three	NUM
dss-287	1000	12	-	-	PUNCT
dss-287	1000	13	mirror	mirror	NOUN
dss-287	1000	14	off	off	ADP
dss-287	1000	15	-	-	PUNCT
dss-287	1000	16	axis	axis	NOUN
dss-287	1000	17	amateur	amateur	NOUN
dss-287	1000	18	telescope	telescope	NOUN
dss-287	1000	19	,	,	PUNCT
dss-287	1000	20	"	"	PUNCT
dss-287	1000	21	sky	sky	NOUN
dss-287	1000	22	and	and	CCONJ
dss-287	1000	23	telescope	telescope	NOUN
dss-287	1000	24	,	,	PUNCT
dss-287	1000	25	dec	dec	PROPN
dss-287	1000	26	.	.	PROPN
dss-287	1000	27	1969	1969	NUM
dss-287	1000	28	.	.	PUNCT
dss-287	1001	1	[	[	X
dss-287	1001	2	102	102	NUM
dss-287	1001	3	]	]	X
dss-287	1001	4	j.	j.	PROPN
dss-287	1001	5	l.	l.	PROPN
dss-287	1001	6	houghton	houghton	PROPN
dss-287	1001	7	,	,	PUNCT
dss-287	1001	8	u.s	u.s	PROPN
dss-287	1001	9	.	.	PROPN
dss-287	1001	10	patent	patent	NOUN
dss-287	1001	11	2,350,112	2,350,112	NUM
dss-287	1001	12	.	.	PUNCT
dss-287	1002	1	may	may	AUX
dss-287	1002	2	30	30	NUM
dss-287	1002	3	,	,	PUNCT
dss-287	1002	4	1944	1944	NUM
dss-287	1002	5	.	.	PUNCT
dss-287	1003	1	[	[	X
dss-287	1003	2	103	103	NUM
dss-287	1003	3	]	]	X
dss-287	1003	4	r.	r.	PROPN
dss-287	1003	5	a.	a.	NOUN
dss-287	1003	6	buchroeder	buchroeder	PROPN
dss-287	1003	7	,	,	PUNCT
dss-287	1003	8	"	"	PUNCT
dss-287	1003	9	the	the	DET
dss-287	1003	10	houghton	houghton	PROPN
dss-287	1003	11	camera	camera	NOUN
dss-287	1003	12	,	,	PUNCT
dss-287	1003	13	"	"	PUNCT
dss-287	1003	14	telescope	telescope	NOUN
dss-287	1003	15	making	make	VERB
dss-287	1003	16	8	8	NUM
dss-287	1003	17	,	,	PUNCT
dss-287	1003	18	1980	1980	NUM
dss-287	1003	19	.	.	PUNCT
dss-287	1004	1	[	[	X
dss-287	1004	2	104	104	X
dss-287	1004	3	]	]	X
dss-287	1004	4	e.	e.	PROPN
dss-287	1004	5	turco	turco	PROPN
dss-287	1004	6	,	,	PUNCT
dss-287	1004	7	"	"	PUNCT
dss-287	1004	8	making	make	VERB
dss-287	1004	9	an	an	DET
dss-287	1004	10	aplanatic	aplanatic	ADJ
dss-287	1004	11	4	4	NUM
dss-287	1004	12	-	-	PUNCT
dss-287	1004	13	inch	inch	NOUN
dss-287	1004	14	telescope	telescope	NOUN
dss-287	1004	15	,	,	PUNCT
dss-287	1004	16	"	"	PUNCT
dss-287	1004	17	sky	sky	NOUN
dss-287	1004	18	and	and	CCONJ
dss-287	1004	19	telescope	telescope	NOUN
dss-287	1004	20	,	,	PUNCT
dss-287	1004	21	nov	nov	PROPN
dss-287	1004	22	.	.	PROPN
dss-287	1004	23	1979	1979	NUM
dss-287	1004	24	.	.	PUNCT
dss-287	1005	1	[	[	X
dss-287	1005	2	105	105	NUM
dss-287	1005	3	]	]	X
dss-287	1005	4	r.	r.	PROPN
dss-287	1005	5	d.	d.	PROPN
dss-287	1005	6	sigler	sigler	PROPN
dss-287	1005	7	,	,	PUNCT
dss-287	1005	8	"	"	PUNCT
dss-287	1005	9	compound	compound	NOUN
dss-287	1005	10	catadioptric	catadioptric	NOUN
dss-287	1005	11	telescopes	telescope	NOUN
dss-287	1005	12	with	with	ADP
dss-287	1005	13	all	all	DET
dss-287	1005	14	spherical	spherical	ADJ
dss-287	1005	15	surfaces	surface	NOUN
dss-287	1005	16	,	,	PUNCT
dss-287	1005	17	.	.	PUNCT
dss-287	1005	18	"	"	PUNCT
dss-287	1005	19	applied	apply	VERB
dss-287	1005	20	optics	optic	NOUN
dss-287	1005	21	17	17	NUM
dss-287	1005	22	,	,	PUNCT
dss-287	1005	23	1978	1978	NUM
dss-287	1005	24	.	.	PUNCT
dss-287	1006	1	[	[	X
dss-287	1006	2	106	106	NUM
dss-287	1006	3	]	]	X
dss-287	1006	4	r.	r.	PROPN
dss-287	1006	5	t.	t.	PROPN
dss-287	1006	6	jones	jones	PROPN
dss-287	1006	7	,	,	PUNCT
dss-287	1006	8	"	"	PUNCT
dss-287	1006	9	a	a	DET
dss-287	1006	10	wide	wide	ADJ
dss-287	1006	11	field	field	NOUN
dss-287	1006	12	telescope	telescope	NOUN
dss-287	1006	13	with	with	ADP
dss-287	1006	14	spherical	spherical	ADJ
dss-287	1006	15	optics	optic	NOUN
dss-287	1006	16	,	,	PUNCT
dss-287	1006	17	"	"	PUNCT
dss-287	1006	18	sky	sky	NOUN
dss-287	1006	19	and	and	CCONJ
dss-287	1006	20	telescope	telescope	NOUN
dss-287	1006	21	,	,	PUNCT
dss-287	1006	22	sept	sept	PROPN
dss-287	1006	23	.	.	PROPN
dss-287	1006	24	1957	1957	NUM
dss-287	1006	25	.	.	PUNCT
dss-287	1007	1	[	[	X
dss-287	1007	2	107	107	NUM
dss-287	1007	3	]	]	PUNCT
dss-287	1007	4	b.	b.	PROPN
dss-287	1007	5	brixner	brixner	NOUN
dss-287	1007	6	,	,	PUNCT
dss-287	1007	7	"	"	PUNCT
dss-287	1007	8	barlow	barlow	NOUN
dss-287	1007	9	lens	lens	NOUN
dss-287	1007	10	design	design	NOUN
dss-287	1007	11	for	for	ADP
dss-287	1007	12	a	a	DET
dss-287	1007	13	spherical	spherical	ADJ
dss-287	1007	14	primary	primary	ADJ
dss-287	1007	15	mirror	mirror	NOUN
dss-287	1007	16	,	,	PUNCT
dss-287	1007	17	"	"	PUNCT
dss-287	1007	18	sky	sky	NOUN
dss-287	1007	19	and	and	CCONJ
dss-287	1007	20	telescope	telescope	NOUN
dss-287	1007	21	,	,	PUNCT
dss-287	1007	22	aug	aug	PROPN
dss-287	1007	23	.	.	PROPN
dss-287	1007	24	1966	1966	NUM
dss-287	1008	1	[	[	X
dss-287	1008	2	108	108	NUM
dss-287	1008	3	]	]	PUNCT
dss-287	1008	4	t.	t.	NOUN
dss-287	1008	5	bird	bird	NOUN
dss-287	1008	6	,	,	PUNCT
dss-287	1008	7	a.	a.	NOUN
dss-287	1008	8	bowen	bowen	PROPN
dss-287	1008	9	,	,	PUNCT
dss-287	1008	10	"	"	PUNCT
dss-287	1008	11	a	a	DET
dss-287	1008	12	compact	compact	ADJ
dss-287	1008	13	all	all	DET
dss-287	1008	14	spherical	spherical	ADJ
dss-287	1008	15	catadioptric	catadioptric	NOUN
dss-287	1008	16	newtonian	newtonian	PROPN
dss-287	1008	17	telescope	telescope	NOUN
dss-287	1008	18	,	,	PUNCT
dss-287	1008	19	"	"	PUNCT
dss-287	1008	20	telescope	telescope	NOUN
dss-287	1008	21	making	make	VERB
dss-287	1008	22	3	3	NUM
dss-287	1008	23	,	,	PUNCT
dss-287	1008	24	1979	1979	NUM
dss-287	1008	25	.	.	PUNCT
dss-287	1009	1	[	[	X
dss-287	1009	2	109	109	NUM
dss-287	1009	3	]	]	PUNCT
dss-287	1009	4	r.	r.	PROPN
dss-287	1009	5	christen	christen	PROPN
dss-287	1009	6	,	,	PUNCT
dss-287	1009	7	"	"	PUNCT
dss-287	1009	8	an	an	DET
dss-287	1009	9	apochromatic	apochromatic	ADJ
dss-287	1009	10	triplet	triplet	NOUN
dss-287	1009	11	objective	objective	NOUN
dss-287	1009	12	,	,	PUNCT
dss-287	1009	13	"	"	PUNCT
dss-287	1009	14	sky	sky	NOUN
dss-287	1009	15	and	and	CCONJ
dss-287	1009	16	telescope	telescope	NOUN
dss-287	1009	17	,	,	PUNCT
dss-287	1009	18	oct	oct	PROPN
dss-287	1009	19	.	.	PROPN
dss-287	1009	20	1981	1981	NUM
dss-287	1009	21	.	.	PUNCT
dss-287	1010	1	[	[	X
dss-287	1010	2	110	110	NUM
dss-287	1010	3	]	]	X
dss-287	1010	4	n.	n.	NOUN
dss-287	1010	5	loveday	loveday	PROPN
dss-287	1010	6	,	,	PUNCT
dss-287	1010	7	"	"	PUNCT
dss-287	1010	8	a	a	DET
dss-287	1010	9	folded	fold	VERB
dss-287	1010	10	newtonian	newtonian	NOUN
dss-287	1010	11	with	with	ADP
dss-287	1010	12	dual	dual	ADJ
dss-287	1010	13	focal	focal	ADJ
dss-287	1010	14	length	length	NOUN
dss-287	1010	15	,	,	PUNCT
dss-287	1010	16	"	"	PUNCT
dss-287	1010	17	sky	sky	NOUN
dss-287	1010	18	and	and	CCONJ
dss-287	1010	19	telescope	telescope	NOUN
dss-287	1010	20	,	,	PUNCT
dss-287	1010	21	june	june	PROPN
dss-287	1010	22	1981	1981	NUM
dss-287	1010	23	.	.	PUNCT
dss-287	1011	1	[	[	X
dss-287	1011	2	111	111	NUM
dss-287	1011	3	]	]	PUNCT
dss-287	1011	4	p.	p.	NOUN
dss-287	1011	5	a.	a.	NOUN
dss-287	1011	6	valleli	valleli	PROPN
dss-287	1011	7	,	,	PUNCT
dss-287	1011	8	"	"	PUNCT
dss-287	1011	9	the	the	DET
dss-287	1011	10	focal	focal	ADJ
dss-287	1011	11	reducer	reducer	NOUN
dss-287	1011	12	as	as	ADP
dss-287	1011	13	a	a	DET
dss-287	1011	14	telescope	telescope	NOUN
dss-287	1011	15	accessory	accessory	NOUN
dss-287	1011	16	,	,	PUNCT
dss-287	1011	17	"	"	PUNCT
dss-287	1011	18	sky	sky	NOUN
dss-287	1011	19	and	and	CCONJ
dss-287	1011	20	telescope	telescope	NOUN
dss-287	1011	21	,	,	PUNCT
dss-287	1011	22	dec	dec	PROPN
dss-287	1011	23	.	.	PROPN
dss-287	1011	24	1973	1973	NUM
dss-287	1011	25	.	.	PUNCT
dss-287	1012	1	[	[	X
dss-287	1012	2	112	112	NUM
dss-287	1012	3	]	]	X
dss-287	1012	4	d.	d.	PROPN
dss-287	1012	5	c.	c.	PROPN
dss-287	1012	6	dilworth	dilworth	PROPN
dss-287	1012	7	,	,	PUNCT
dss-287	1012	8	"	"	PUNCT
dss-287	1012	9	a	a	DET
dss-287	1012	10	new	new	ADJ
dss-287	1012	11	catadioptric	catadioptric	NOUN
dss-287	1012	12	telescope	telescope	NOUN
dss-287	1012	13	,	,	PUNCT
dss-287	1012	14	"	"	PUNCT
dss-287	1012	15	sky	sky	NOUN
dss-287	1012	16	and	and	CCONJ
dss-287	1012	17	telescope	telescope	NOUN
dss-287	1012	18	,	,	PUNCT
dss-287	1012	19	nov.1977	nov.1977	PRON
dss-287	1012	20	.	.	PUNCT
dss-287	1013	1	[	[	X
dss-287	1013	2	113	113	NUM
dss-287	1013	3	]	]	PUNCT
dss-287	1013	4	r.	r.	PROPN
dss-287	1013	5	d.	d.	PROPN
dss-287	1013	6	sigler	sigler	PROPN
dss-287	1013	7	,	,	PUNCT
dss-287	1013	8	"	"	PUNCT
dss-287	1013	9	all	all	DET
dss-287	1013	10	spherical	spherical	ADJ
dss-287	1013	11	relay	relay	NOUN
dss-287	1013	12	telescope	telescope	NOUN
dss-287	1013	13	,	,	PUNCT
dss-287	1013	14	"	"	PUNCT
dss-287	1013	15	telescope	telescope	NOUN
dss-287	1013	16	making	make	VERB
dss-287	1013	17	2	2	NUM
dss-287	1013	18	,	,	PUNCT
dss-287	1013	19	1978	1978	NUM
dss-287	1013	20	.	.	PUNCT
dss-287	1014	1	[	[	X
dss-287	1014	2	114	114	NUM
dss-287	1014	3	]	]	PUNCT
dss-287	1014	4	h.	h.	PROPN
dss-287	1014	5	dall	dall	PROPN
dss-287	1014	6	,	,	PUNCT
dss-287	1014	7	"	"	PUNCT
dss-287	1014	8	a	a	DET
dss-287	1014	9	dall	dall	PROPN
dss-287	1014	10	maksutov	maksutov	NOUN
dss-287	1014	11	telescope	telescope	NOUN
dss-287	1014	12	with	with	ADP
dss-287	1014	13	an	an	DET
dss-287	1014	14	erecting	erect	VERB
dss-287	1014	15	lens	len	NOUN
dss-287	1014	16	,	,	PUNCT
dss-287	1014	17	"	"	PUNCT
dss-287	1014	18	sky	sky	NOUN
dss-287	1014	19	and	and	CCONJ
dss-287	1014	20	telescope	telescope	NOUN
dss-287	1014	21	,	,	PUNCT
dss-287	1014	22	feb	feb	PROPN
dss-287	1014	23	.	.	PROPN
dss-287	1014	24	1962	1962	NUM
dss-287	1014	25	.	.	PUNCT
dss-287	1015	1	[	[	X
dss-287	1015	2	115	115	NUM
dss-287	1015	3	]	]	X
dss-287	1015	4	e.	e.	PROPN
dss-287	1015	5	everhart	everhart	PROPN
dss-287	1015	6	,	,	PUNCT
dss-287	1015	7	"	"	PUNCT
dss-287	1015	8	making	make	VERB
dss-287	1015	9	corrector	corrector	NOUN
dss-287	1015	10	plates	plate	NOUN
dss-287	1015	11	by	by	ADP
dss-287	1015	12	schmidt	schmidt	PROPN
dss-287	1015	13	's	's	PART
dss-287	1015	14	vacuum	vacuum	NOUN
dss-287	1015	15	method	method	NOUN
dss-287	1015	16	,	,	PUNCT
dss-287	1015	17	"	"	PUNCT
dss-287	1015	18	applied	apply	VERB
dss-287	1015	19	optics	optic	NOUN
dss-287	1015	20	5	5	NUM
dss-287	1015	21	,	,	PUNCT
dss-287	1015	22	1966	1966	NUM
dss-287	1015	23	.	.	PUNCT
dss-287	1016	1	[	[	X
dss-287	1016	2	116	116	X
dss-287	1016	3	]	]	X
dss-287	1016	4	r.	r.	NOUN
dss-287	1016	5	gelles	gelle	NOUN
dss-287	1016	6	,	,	PUNCT
dss-287	1016	7	"	"	PUNCT
dss-287	1016	8	a	a	DET
dss-287	1016	9	new	new	ADJ
dss-287	1016	10	family	family	NOUN
dss-287	1016	11	of	of	ADP
dss-287	1016	12	flat	flat	ADJ
dss-287	1016	13	-	-	PUNCT
dss-287	1016	14	field	field	NOUN
dss-287	1016	15	cameras	camera	NOUN
dss-287	1016	16	,	,	PUNCT
dss-287	1016	17	"	"	PUNCT
dss-287	1016	18	applied	apply	VERB
dss-287	1016	19	optics	optic	NOUN
dss-287	1016	20	2	2	NUM
dss-287	1016	21	,	,	PUNCT
dss-287	1016	22	1963	1963	NUM
dss-287	1016	23	.	.	PUNCT
dss-287	1017	1	[	[	X
dss-287	1017	2	117	117	NUM
dss-287	1017	3	]	]	X
dss-287	1017	4	r.	r.	PROPN
dss-287	1017	5	a.	a.	NOUN
dss-287	1017	6	buchroeder	buchroeder	PROPN
dss-287	1017	7	,	,	PUNCT
dss-287	1017	8	"	"	PUNCT
dss-287	1017	9	a	a	DET
dss-287	1017	10	new	new	ADJ
dss-287	1017	11	catadioptric	catadioptric	NOUN
dss-287	1017	12	design	design	NOUN
dss-287	1017	13	suitable	suitable	ADJ
dss-287	1017	14	for	for	ADP
dss-287	1017	15	atms	atms	NOUN
dss-287	1017	16	,	,	PUNCT
dss-287	1017	17	"	"	PUNCT
dss-287	1017	18	sky	sky	NOUN
dss-287	1017	19	and	and	CCONJ
dss-287	1017	20	telescope	telescope	NOUN
dss-287	1017	21	,	,	PUNCT
dss-287	1017	22	april	april	PROPN
dss-287	1017	23	1968	1968	NUM
dss-287	1017	24	.	.	PUNCT
dss-287	1018	1	dss	dss	NOUN
dss-287	1018	2	vol	vol	NOUN
dss-287	1018	3	.	.	PROPN
dss-287	1019	1	6	6	NUM
dss-287	1019	2	,	,	PUNCT
dss-287	1019	3	no	no	INTJ
dss-287	1019	4	.	.	NOUN
dss-287	1019	5	1	1	NUM
dss-287	1019	6	,	,	PUNCT
dss-287	1019	7	2025	2025	NUM
dss-287	1019	8	,	,	PUNCT
dss-287	1019	9	pp.49	pp.49	NOUN
dss-287	1019	10	-	-	SYM
dss-287	1019	11	90	90	NUM
dss-287	1019	12	89	89	NUM
dss-287	1020	1	[	[	X
dss-287	1020	2	118	118	NUM
dss-287	1020	3	]	]	X
dss-287	1020	4	r.	r.	PROPN
dss-287	1020	5	a.	a.	NOUN
dss-287	1020	6	buchroeder	buchroeder	PROPN
dss-287	1020	7	,	,	PUNCT
dss-287	1020	8	"	"	PUNCT
dss-287	1020	9	an	an	DET
dss-287	1020	10	improved	improved	ADJ
dss-287	1020	11	buchroeder	buchroeder	NOUN
dss-287	1020	12	catadioptric	catadioptric	PROPN
dss-287	1020	13	design	design	PROPN
dss-287	1020	14	,	,	PUNCT
dss-287	1020	15	"	"	PUNCT
dss-287	1020	16	sky	sky	NOUN
dss-287	1020	17	and	and	CCONJ
dss-287	1020	18	telescope	telescope	NOUN
dss-287	1020	19	,	,	PUNCT
dss-287	1020	20	nov	nov	PROPN
dss-287	1020	21	.	.	PROPN
dss-287	1020	22	1968	1968	NUM
dss-287	1020	23	.	.	PUNCT
dss-287	1021	1	[	[	X
dss-287	1021	2	119	119	NUM
dss-287	1021	3	]	]	X
dss-287	1021	4	f.	f.	PROPN
dss-287	1021	5	e.	e.	PROPN
dss-287	1021	6	ross	ross	PROPN
dss-287	1021	7	,	,	PUNCT
dss-287	1021	8	"	"	PUNCT
dss-287	1021	9	lens	lens	NOUN
dss-287	1021	10	systems	system	NOUN
dss-287	1021	11	for	for	ADP
dss-287	1021	12	correcting	correct	VERB
dss-287	1021	13	coma	coma	NOUN
dss-287	1021	14	of	of	ADP
dss-287	1021	15	mirrors	mirror	NOUN
dss-287	1021	16	,	,	PUNCT
dss-287	1021	17	"	"	PUNCT
dss-287	1021	18	astrophysical	astrophysical	ADJ
dss-287	1021	19	journal	journal	NOUN
dss-287	1021	20	81	81	NUM
dss-287	1021	21	,	,	PUNCT
dss-287	1021	22	1935	1935	NUM
dss-287	1021	23	.	.	PUNCT
dss-287	1022	1	[	[	X
dss-287	1022	2	120	120	NUM
dss-287	1022	3	]	]	X
dss-287	1022	4	d.	d.	PROPN
dss-287	1022	5	d.	d.	PROPN
dss-287	1022	6	maksutov	maksutov	PROPN
dss-287	1022	7	,	,	PUNCT
dss-287	1022	8	"	"	PUNCT
dss-287	1022	9	new	new	ADJ
dss-287	1022	10	catadioptric	catadioptric	PROPN
dss-287	1022	11	meniscus	meniscus	NOUN
dss-287	1022	12	systems	system	NOUN
dss-287	1022	13	,	,	PUNCT
dss-287	1022	14	"	"	PUNCT
dss-287	1022	15	journal	journal	NOUN
dss-287	1022	16	of	of	ADP
dss-287	1022	17	the	the	DET
dss-287	1022	18	optical	optical	ADJ
dss-287	1022	19	society	society	NOUN
dss-287	1022	20	of	of	ADP
dss-287	1022	21	america	america	PROPN
dss-287	1022	22	,	,	PUNCT
dss-287	1022	23	1944	1944	NUM
dss-287	1022	24	.	.	PUNCT
dss-287	1023	1	[	[	X
dss-287	1023	2	121	121	NUM
dss-287	1023	3	]	]	PUNCT
dss-287	1023	4	j.	j.	PROPN
dss-287	1023	5	richter	richter	PROPN
dss-287	1023	6	,	,	PUNCT
dss-287	1023	7	"	"	PUNCT
dss-287	1023	8	a	a	DET
dss-287	1023	9	coma	coma	NOUN
dss-287	1023	10	corrector	corrector	NOUN
dss-287	1023	11	for	for	ADP
dss-287	1023	12	a	a	DET
dss-287	1023	13	newtonian	newtonian	ADJ
dss-287	1023	14	,	,	PUNCT
dss-287	1023	15	"	"	PUNCT
dss-287	1023	16	sky	sky	NOUN
dss-287	1023	17	and	and	CCONJ
dss-287	1023	18	telescope	telescope	NOUN
dss-287	1023	19	,	,	PUNCT
dss-287	1023	20	may	may	PROPN
dss-287	1023	21	1985	1985	NUM
dss-287	1023	22	.	.	PUNCT
dss-287	1024	1	[	[	X
dss-287	1024	2	122	122	NUM
dss-287	1024	3	]	]	X
dss-287	1024	4	d.	d.	PROPN
dss-287	1024	5	mikesic	mikesic	PROPN
dss-287	1024	6	,	,	PUNCT
dss-287	1024	7	"	"	PUNCT
dss-287	1024	8	a	a	DET
dss-287	1024	9	simple	simple	ADJ
dss-287	1024	10	coma	coma	NOUN
dss-287	1024	11	corrector	corrector	NOUN
dss-287	1024	12	for	for	ADP
dss-287	1024	13	newtonians	newtonian	NOUN
dss-287	1024	14	,	,	PUNCT
dss-287	1024	15	"	"	PUNCT
dss-287	1024	16	sky	sky	NOUN
dss-287	1024	17	and	and	CCONJ
dss-287	1024	18	telescope	telescope	NOUN
dss-287	1024	19	,	,	PUNCT
dss-287	1024	20	july	july	PROPN
dss-287	1024	21	1983	1983	NUM
dss-287	1024	22	.	.	PUNCT
dss-287	1025	1	[	[	X
dss-287	1025	2	123	123	NUM
dss-287	1025	3	]	]	PUNCT
dss-287	1025	4	c.	c.	PROPN
dss-287	1025	5	r.	r.	PROPN
dss-287	1025	6	hartshorn	hartshorn	PROPN
dss-287	1025	7	,	,	PUNCT
dss-287	1025	8	"	"	PUNCT
dss-287	1025	9	the	the	DET
dss-287	1025	10	barlow	barlow	PROPN
dss-287	1025	11	lens	lens	PROPN
dss-287	1025	12	,	,	PUNCT
dss-287	1025	13	"	"	PUNCT
dss-287	1025	14	amateur	amateur	ADJ
dss-287	1025	15	telescope	telescope	NOUN
dss-287	1025	16	making	make	VERB
dss-287	1025	17	book	book	NOUN
dss-287	1025	18	iii	iii	PROPN
dss-287	1025	19	,	,	PUNCT
dss-287	1025	20	a.	a.	PROPN
dss-287	1025	21	g.	g.	PROPN
dss-287	1025	22	ingalls	ingalls	PROPN
dss-287	1025	23	,	,	PUNCT
dss-287	1025	24	ed	ed	NOUN
dss-287	1025	25	.	.	PUNCT
dss-287	1026	1	new	new	PROPN
dss-287	1026	2	york	york	PROPN
dss-287	1026	3	:	:	PUNCT
dss-287	1026	4	scientific	scientific	ADJ
dss-287	1026	5	american	american	PROPN
dss-287	1026	6	,	,	PUNCT
dss-287	1026	7	1953	1953	NUM
dss-287	1026	8	.	.	PUNCT
dss-287	1027	1	[	[	X
dss-287	1027	2	124	124	X
dss-287	1027	3	]	]	X
dss-287	1027	4	f.	f.	PROPN
dss-287	1027	5	h.	h.	PROPN
dss-287	1027	6	thornton	thornton	PROPN
dss-287	1027	7	,	,	PUNCT
dss-287	1027	8	"	"	PUNCT
dss-287	1027	9	mounting	mount	VERB
dss-287	1027	10	the	the	DET
dss-287	1027	11	barlow	barlow	PROPN
dss-287	1027	12	lens	lens	PROPN
dss-287	1027	13	,	,	PUNCT
dss-287	1027	14	"	"	PUNCT
dss-287	1027	15	jbba	jbba	NOUN
dss-287	1027	16	60	60	NUM
dss-287	1027	17	,	,	PUNCT
dss-287	1027	18	no	no	INTJ
dss-287	1027	19	.	.	NOUN
dss-287	1027	20	3	3	NUM
dss-287	1027	21	,	,	PUNCT
dss-287	1027	22	1950	1950	NUM
dss-287	1027	23	.	.	PUNCT
dss-287	1028	1	[	[	X
dss-287	1028	2	125	125	NUM
dss-287	1028	3	]	]	PUNCT
dss-287	1028	4	p.	p.	NOUN
dss-287	1028	5	a.	a.	NOUN
dss-287	1028	6	valleli	valleli	PROPN
dss-287	1028	7	,	,	PUNCT
dss-287	1028	8	"	"	PUNCT
dss-287	1028	9	the	the	DET
dss-287	1028	10	focal	focal	ADJ
dss-287	1028	11	reducer	reducer	NOUN
dss-287	1028	12	as	as	ADP
dss-287	1028	13	a	a	DET
dss-287	1028	14	telescope	telescope	NOUN
dss-287	1028	15	accessory	accessory	NOUN
dss-287	1028	16	,	,	PUNCT
dss-287	1028	17	"	"	PUNCT
dss-287	1028	18	sky	sky	NOUN
dss-287	1028	19	and	and	CCONJ
dss-287	1028	20	telescope	telescope	NOUN
dss-287	1028	21	,	,	PUNCT
dss-287	1028	22	dec	dec	PROPN
dss-287	1028	23	.	.	PROPN
dss-287	1028	24	1973	1973	NUM
dss-287	1028	25	.	.	PUNCT
dss-287	1029	1	[	[	X
dss-287	1029	2	126	126	NUM
dss-287	1029	3	]	]	PUNCT
dss-287	1029	4	a.	a.	NOUN
dss-287	1029	5	konig	konig	PROPN
dss-287	1029	6	,	,	PUNCT
dss-287	1029	7	h.	h.	PROPN
dss-287	1029	8	kohler	kohler	PROPN
dss-287	1029	9	,	,	PUNCT
dss-287	1029	10	die	die	VERB
dss-287	1029	11	fernrohre	fernrohre	PROPN
dss-287	1029	12	und	und	NOUN
dss-287	1029	13	entfernungsmesser	entfernungsmesser	NOUN
dss-287	1029	14	.	.	PUNCT
dss-287	1030	1	berlin	berlin	PROPN
dss-287	1030	2	:	:	PUNCT
dss-287	1030	3	springer	springer	NOUN
dss-287	1030	4	verlag	verlag	PROPN
dss-287	1030	5	,	,	PUNCT
dss-287	1030	6	1959	1959	NUM
dss-287	1030	7	.	.	PUNCT
dss-287	1031	1	[	[	X
dss-287	1031	2	127	127	NUM
dss-287	1031	3	]	]	X
dss-287	1031	4	nagler	nagl	ADJ
dss-287	1031	5	eyepiece	eyepiece	PROPN
dss-287	1031	6	.	.	PUNCT
dss-287	1032	1	tele	tele	PROPN
dss-287	1032	2	vue	vue	PROPN
dss-287	1032	3	.	.	PUNCT
dss-287	1033	1	u.s	u.s	PROPN
dss-287	1033	2	.	.	PROPN
dss-287	1033	3	patent	patent	NOUN
dss-287	1033	4	4,286,844	4,286,844	NUM
dss-287	1033	5	.	.	PUNCT
dss-287	1034	1	[	[	X
dss-287	1034	2	128	128	NUM
dss-287	1034	3	]	]	X
dss-287	1034	4	s.	s.	PROPN
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dss-287	1034	6	,	,	PUNCT
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dss-287	1034	9	,	,	PUNCT
dss-287	1034	10	"	"	PUNCT
dss-287	1034	11	in	in	ADP
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dss-287	1034	14	and	and	CCONJ
dss-287	1034	15	optical	optical	ADJ
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dss-287	1034	18	.	.	PUNCT
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dss-287	1035	2	.	.	PUNCT
dss-287	1036	1	new	new	PROPN
dss-287	1036	2	york	york	PROPN
dss-287	1036	3	:	:	PUNCT
dss-287	1036	4	academic	academic	ADJ
dss-287	1036	5	press	press	NOUN
dss-287	1036	6	,	,	PUNCT
dss-287	1036	7	1996	1996	NUM
dss-287	1037	1	[	[	X
dss-287	1037	2	129	129	NUM
dss-287	1037	3	]	]	PUNCT
dss-287	1037	4	t.	t.	PROPN
dss-287	1037	5	l.	l.	PROPN
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dss-287	1037	7	,	,	PUNCT
dss-287	1037	8	"	"	PUNCT
dss-287	1037	9	simple	simple	ADJ
dss-287	1037	10	flat	flat	ADJ
dss-287	1037	11	field	field	NOUN
dss-287	1037	12	eyepiece	eyepiece	NOUN
dss-287	1037	13	,	,	PUNCT
dss-287	1037	14	"	"	PUNCT
dss-287	1037	15	applied	apply	VERB
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dss-287	1037	17	22	22	NUM
dss-287	1037	18	,	,	PUNCT
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dss-287	1037	20	.	.	PUNCT
dss-287	1038	1	[	[	X
dss-287	1038	2	130	130	NUM
dss-287	1038	3	]	]	PUNCT
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dss-287	1038	8	.	.	PUNCT
dss-287	1039	1	tele	tele	PROPN
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dss-287	1039	3	.	.	PUNCT
dss-287	1040	1	u.s	u.s	PROPN
dss-287	1040	2	.	.	PROPN
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dss-287	1040	4	4,400,065	4,400,065	NUM
dss-287	1040	5	.	.	PUNCT
dss-287	1041	1	[	[	X
dss-287	1041	2	131	131	NUM
dss-287	1041	3	]	]	X
dss-287	1041	4	piossl	piossl	ADJ
dss-287	1041	5	eyepiece	eyepiece	PROPN
dss-287	1041	6	.	.	PUNCT
dss-287	1042	1	tele	tele	PROPN
dss-287	1042	2	vue	vue	PROPN
dss-287	1042	3	.	.	PUNCT
dss-287	1043	1	u.s	u.s	PROPN
dss-287	1043	2	.	.	PROPN
dss-287	1043	3	patent	patent	NOUN
dss-287	1043	4	4,482,217	4,482,217	NUM
dss-287	1043	5	.	.	PUNCT
dss-287	1044	1	[	[	X
dss-287	1044	2	132	132	NUM
dss-287	1044	3	]	]	X
dss-287	1044	4	h.	h.	PROPN
dss-287	1044	5	w.	w.	PROPN
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dss-287	1044	7	,	,	PUNCT
dss-287	1044	8	m.	m.	PROPN
dss-287	1044	9	w.	w.	PROPN
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dss-287	1044	11	,	,	PUNCT
dss-287	1044	12	"	"	PUNCT
dss-287	1044	13	the	the	DET
dss-287	1044	14	pretoria	pretoria	PROPN
dss-287	1044	15	eyepiece	eyepiece	NOUN
dss-287	1044	16	,	,	PUNCT
dss-287	1044	17	"	"	PUNCT
dss-287	1044	18	telescope	telescope	NOUN
dss-287	1044	19	making	make	VERB
dss-287	1044	20	29	29	NUM
dss-287	1044	21	,	,	PUNCT
dss-287	1044	22	1986	1986	NUM
dss-287	1044	23	.	.	PUNCT
dss-287	1045	1	[	[	X
dss-287	1045	2	133	133	NUM
dss-287	1045	3	]	]	PUNCT
dss-287	1045	4	s.	s.	PROPN
dss-287	1045	5	b.	b.	PROPN
dss-287	1045	6	c.	c.	PROPN
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dss-287	1045	8	,	,	PUNCT
dss-287	1045	9	"	"	PUNCT
dss-287	1045	10	recent	recent	ADJ
dss-287	1045	11	advances	advance	NOUN
dss-287	1045	12	in	in	ADP
dss-287	1045	13	astronomical	astronomical	ADJ
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dss-287	1045	15	,	,	PUNCT
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dss-287	1045	19	12	12	NUM
dss-287	1045	20	,	,	PUNCT
dss-287	1045	21	1973	1973	NUM
dss-287	1045	22	.	.	PUNCT
dss-287	1046	1	[	[	X
dss-287	1046	2	134	134	NUM
dss-287	1046	3	]	]	PUNCT
dss-287	1046	4	r.	r.	PROPN
dss-287	1046	5	clark	clark	PROPN
dss-287	1046	6	,	,	PUNCT
dss-287	1046	7	"	"	PUNCT
dss-287	1046	8	cassegrain	cassegrain	NOUN
dss-287	1046	9	telescopes	telescope	NOUN
dss-287	1046	10	:	:	PUNCT
dss-287	1046	11	limits	limit	NOUN
dss-287	1046	12	of	of	ADP
dss-287	1046	13	secondary	secondary	ADJ
dss-287	1046	14	movements	movement	NOUN
dss-287	1046	15	in	in	ADP
dss-287	1046	16	secondary	secondary	ADJ
dss-287	1046	17	focusing	focusing	NOUN
dss-287	1046	18	,	,	PUNCT
dss-287	1046	19	"	"	PUNCT
dss-287	1046	20	applied	apply	VERB
dss-287	1046	21	optics	optic	NOUN
dss-287	1046	22	15	15	NUM
dss-287	1046	23	,	,	PUNCT
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dss-287	1046	25	.	.	PUNCT
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dss-287	1047	2	135	135	NUM
dss-287	1047	3	]	]	X
dss-287	1047	4	r.	r.	PROPN
dss-287	1047	5	e.	e.	PROPN
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dss-287	1047	7	,	,	PUNCT
dss-287	1047	8	r.	r.	PROPN
dss-287	1047	9	w.	w.	PROPN
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dss-287	1047	11	,	,	PUNCT
dss-287	1047	12	"	"	PUNCT
dss-287	1047	13	on	on	ADP
dss-287	1047	14	focusing	focus	VERB
dss-287	1047	15	a	a	DET
dss-287	1047	16	cassegrain	cassegrain	NOUN
dss-287	1047	17	,	,	PUNCT
dss-287	1047	18	"	"	PUNCT
dss-287	1047	19	sky	sky	NOUN
dss-287	1047	20	and	and	CCONJ
dss-287	1047	21	telescope	telescope	NOUN
dss-287	1047	22	,	,	PUNCT
dss-287	1047	23	oct	oct	PROPN
dss-287	1047	24	.	.	PROPN
dss-287	1047	25	1976	1976	NUM
dss-287	1047	26	.	.	PUNCT
dss-287	1048	1	[	[	X
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dss-287	1048	3	]	]	PUNCT
dss-287	1048	4	w.	w.	PROPN
dss-287	1048	5	b.	b.	PROPN
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dss-287	1048	7	,	,	PUNCT
dss-287	1048	8	m.	m.	NOUN
dss-287	1048	9	p.	p.	PROPN
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dss-287	1048	11	,	,	PUNCT
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dss-287	1048	13	general	general	ADJ
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dss-287	1048	16	aplanatic	aplanatic	ADJ
dss-287	1048	17	cassegrain	cassegrain	NOUN
dss-287	1048	18	,	,	PUNCT
dss-287	1048	19	gregorian	gregorian	NOUN
dss-287	1048	20	and	and	CCONJ
dss-287	1048	21	schwarzschild	schwarzschild	NOUN
dss-287	1048	22	telescopes	telescope	NOUN
dss-287	1048	23	,	,	PUNCT
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dss-287	1048	28	,	,	PUNCT
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dss-287	1048	30	.	.	PUNCT
dss-287	1049	1	[	[	X
dss-287	1049	2	137	137	NUM
dss-287	1049	3	]	]	PUNCT
dss-287	1049	4	k.	k.	PROPN
dss-287	1049	5	r.	r.	PROPN
dss-287	1049	6	barnes	barnes	PROPN
dss-287	1049	7	,	,	PUNCT
dss-287	1049	8	the	the	DET
dss-287	1049	9	optical	optical	ADJ
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dss-287	1049	11	function	function	NOUN
dss-287	1049	12	.	.	PUNCT
dss-287	1050	1	monographs	monograph	NOUN
dss-287	1050	2	on	on	ADP
dss-287	1050	3	applied	applied	ADJ
dss-287	1050	4	optics	optic	NOUN
dss-287	1050	5	.	.	PUNCT
dss-287	1051	1	london	london	PROPN
dss-287	1051	2	:	:	PUNCT
dss-287	1051	3	adam	adam	PROPN
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dss-287	1051	5	,	,	PUNCT
dss-287	1051	6	1971	1971	NUM
dss-287	1051	7	.	.	PUNCT
dss-287	1052	1	[	[	X
dss-287	1052	2	138	138	NUM
dss-287	1052	3	]	]	X
dss-287	1052	4	e.	e.	PROPN
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dss-287	1052	6	,	,	PUNCT
dss-287	1052	7	j.	j.	PROPN
dss-287	1052	8	w.	w.	PROPN
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dss-287	1052	10	,	,	PUNCT
dss-287	1052	11	"	"	PUNCT
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dss-287	1052	13	patterns	pattern	NOUN
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dss-287	1052	15	by	by	ADP
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dss-287	1052	17	in	in	ADP
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dss-287	1052	20	of	of	ADP
dss-287	1052	21	modest	modest	ADJ
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dss-287	1052	23	,	,	PUNCT
dss-287	1052	24	"	"	PUNCT
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dss-287	1052	28	,	,	PUNCT
dss-287	1052	29	1959	1959	NUM
dss-287	1052	30	.	.	PUNCT
dss-287	1053	1	[	[	X
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dss-287	1053	3	]	]	X
dss-287	1053	4	e.	e.	PROPN
dss-287	1053	5	l.	l.	PROPN
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dss-287	1053	7	,	,	PUNCT
dss-287	1053	8	"	"	PUNCT
dss-287	1053	9	transfer	transfer	NOUN
dss-287	1053	10	function	function	NOUN
dss-287	1053	11	for	for	ADP
dss-287	1053	12	an	an	DET
dss-287	1053	13	annular	annular	ADJ
dss-287	1053	14	aperture	aperture	NOUN
dss-287	1053	15	,	,	PUNCT
dss-287	1053	16	"	"	PUNCT
dss-287	1053	17	journal	journal	NOUN
dss-287	1053	18	of	of	ADP
dss-287	1053	19	the	the	DET
dss-287	1053	20	optical	optical	ADJ
dss-287	1053	21	society	society	NOUN
dss-287	1053	22	of	of	ADP
dss-287	1053	23	america	america	PROPN
dss-287	1053	24	46	46	NUM
dss-287	1053	25	,	,	PUNCT
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dss-287	1053	27	.	.	PUNCT
dss-287	1054	1	[	[	X
dss-287	1054	2	140	140	NUM
dss-287	1054	3	]	]	X
dss-287	1054	4	w.	w.	PROPN
dss-287	1054	5	pickering	pickering	PROPN
dss-287	1054	6	,	,	PUNCT
dss-287	1054	7	"	"	PUNCT
dss-287	1054	8	reflectors	reflector	NOUN
dss-287	1054	9	versus	versus	ADP
dss-287	1054	10	refractors	refractor	NOUN
dss-287	1054	11	,	,	PUNCT
dss-287	1054	12	"	"	PUNCT
dss-287	1054	13	amateur	amateur	ADJ
dss-287	1054	14	telescope	telescope	NOUN
dss-287	1054	15	making	making	NOUN
dss-287	1054	16	,	,	PUNCT
dss-287	1054	17	book	book	NOUN
dss-287	1054	18	ii	ii	PROPN
dss-287	1054	19	,	,	PUNCT
dss-287	1054	20	a.	a.	PROPN
dss-287	1054	21	g.	g.	PROPN
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dss-287	1054	23	,	,	PUNCT
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dss-287	1054	25	.	.	PUNCT
dss-287	1055	1	new	new	PROPN
dss-287	1055	2	york	york	PROPN
dss-287	1055	3	:	:	PUNCT
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dss-287	1055	5	american	american	PROPN
dss-287	1055	6	,	,	PUNCT
dss-287	1055	7	1953	1953	NUM
dss-287	1055	8	.	.	PUNCT
dss-287	1056	1	[	[	X
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dss-287	1056	3	]	]	PUNCT
dss-287	1056	4	h.	h.	PROPN
dss-287	1056	5	e.	e.	PROPN
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dss-287	1056	7	,	,	PUNCT
dss-287	1056	8	"	"	PUNCT
dss-287	1056	9	diffraction	diffraction	NOUN
dss-287	1056	10	effects	effect	NOUN
dss-287	1056	11	due	due	ADJ
dss-287	1056	12	to	to	ADP
dss-287	1056	13	axial	axial	ADJ
dss-287	1056	14	obstructions	obstruction	NOUN
dss-287	1056	15	in	in	ADP
dss-287	1056	16	telescopes	telescope	NOUN
dss-287	1056	17	,	,	PUNCT
dss-287	1056	18	"	"	PUNCT
dss-287	1056	19	j.b.a.a	j.b.a.a	PROPN
dss-287	1056	20	.	.	PROPN
dss-287	1056	21	48	48	NUM
dss-287	1056	22	,	,	PUNCT
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dss-287	1056	24	.	.	NOUN
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dss-287	1056	26	,	,	PUNCT
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dss-287	1056	28	.	.	PUNCT
dss-287	1057	1	[	[	X
dss-287	1057	2	142	142	NUM
dss-287	1057	3	]	]	PUNCT
dss-287	1057	4	h.	h.	PROPN
dss-287	1057	5	s.	s.	PROPN
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dss-287	1057	7	,	,	PUNCT
dss-287	1057	8	"	"	PUNCT
dss-287	1057	9	the	the	DET
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dss-287	1057	11	of	of	ADP
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dss-287	1057	13	on	on	ADP
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dss-287	1057	16	of	of	ADP
dss-287	1057	17	telescopic	telescopic	NOUN
dss-287	1057	18	systems	system	NOUN
dss-287	1057	19	for	for	ADP
dss-287	1057	20	foucault	foucault	PROPN
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dss-287	1057	22	objects	object	NOUN
dss-287	1057	23	of	of	ADP
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dss-287	1057	27	,	,	PUNCT
dss-287	1057	28	"	"	PUNCT
dss-287	1057	29	journal	journal	NOUN
dss-287	1057	30	of	of	ADP
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dss-287	1057	32	optical	optical	ADJ
dss-287	1057	33	society	society	NOUN
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dss-287	1058	1	[	[	X
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dss-287	1058	3	]	]	X
dss-287	1058	4	a.	a.	PROPN
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dss-287	1058	7	,	,	PUNCT
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dss-287	1058	11	optical	optical	ADJ
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dss-287	1058	13	,	,	PUNCT
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dss-287	1058	15	i.	i.	PROPN
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dss-287	1058	17	:	:	PUNCT
dss-287	1058	18	oxford	oxford	PROPN
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dss-287	1058	21	,	,	PUNCT
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dss-287	1058	23	.	.	PUNCT
dss-287	1059	1	dss	dss	NOUN
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dss-287	1060	2	,	,	PUNCT
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dss-287	1060	6	,	,	PUNCT
dss-287	1060	7	2025	2025	NUM
dss-287	1060	8	,	,	PUNCT
dss-287	1060	9	pp.49	pp.49	NOUN
dss-287	1060	10	-	-	SYM
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dss-287	1060	12	90	90	NUM
dss-287	1060	13	[	[	SYM
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dss-287	1060	15	]	]	X
dss-287	1060	16	d.	d.	PROPN
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dss-287	1060	18	,	,	PUNCT
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dss-287	1060	20	the	the	DET
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dss-287	1060	30	optical	optical	ADJ
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dss-287	1060	32	,	,	PUNCT
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dss-287	1060	34	.	.	PUNCT
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dss-287	1061	2	,	,	PUNCT
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dss-287	1061	5	,	,	PUNCT
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dss-287	1061	7	.	.	PUNCT
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dss-287	1062	3	]	]	PUNCT
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dss-287	1062	5	r.	r.	PROPN
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dss-287	1062	7	,	,	PUNCT
dss-287	1062	8	"	"	PUNCT
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dss-287	1062	16	,	,	PUNCT
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dss-287	1062	19	and	and	CCONJ
dss-287	1062	20	telescope	telescope	NOUN
dss-287	1062	21	,	,	PUNCT
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dss-287	1062	24	.	.	PUNCT
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dss-287	1063	3	]	]	PUNCT
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dss-287	1063	5	t.	t.	PROPN
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dss-287	1063	9	design	design	NOUN
dss-287	1063	10	of	of	ADP
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dss-287	1063	12	light	light	NOUN
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dss-287	1063	14	,	,	PUNCT
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dss-287	1063	18	6	6	NUM
dss-287	1063	19	,	,	PUNCT
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dss-287	1063	21	.	.	PUNCT
dss-287	1064	1	[	[	X
dss-287	1064	2	147	147	NUM
dss-287	1064	3	]	]	X
dss-287	1064	4	r.	r.	PROPN
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dss-287	1064	6	,	,	PUNCT
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dss-287	1064	8	cassegrainian	cassegrainian	ADJ
dss-287	1064	9	baffle	baffle	NOUN
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dss-287	1064	11	,	,	PUNCT
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dss-287	1064	16	,	,	PUNCT
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dss-287	1064	18	.	.	PUNCT
dss-287	1065	1	[	[	X
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dss-287	1065	3	]	]	PUNCT
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dss-287	1065	5	w.	w.	PROPN
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dss-287	1065	7	,	,	PUNCT
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dss-287	1065	20	,	,	PUNCT
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dss-287	1065	24	,	,	PUNCT
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dss-287	1065	28	,	,	PUNCT
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dss-287	1065	30	.	.	PUNCT
dss-287	1066	1	[	[	X
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dss-287	1066	3	]	]	X
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dss-287	1066	10	with	with	ADP
dss-287	1066	11	a	a	DET
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dss-287	1066	14	,	,	PUNCT
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dss-287	1066	16	spie	spie	NOUN
dss-287	1066	17	,	,	PUNCT
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dss-287	1066	19	.	.	PUNCT
dss-287	1067	1	[	[	X
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dss-287	1067	3	]	]	PUNCT
dss-287	1067	4	j.	j.	PROPN
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dss-287	1067	6	,	,	PUNCT
dss-287	1067	7	"	"	PUNCT
dss-287	1067	8	the	the	DET
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dss-287	1067	10	'	'	PUNCT
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dss-287	1067	13	'	'	PART
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dss-287	1067	20	,	,	PUNCT
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dss-287	1067	22	.	.	PUNCT
dss-287	1068	1	[	[	X
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dss-287	1068	3	]	]	PUNCT
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dss-287	1068	10	of	of	ADP
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dss-287	1068	14	telescope	telescope	NOUN
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dss-287	1068	16	,	,	PUNCT
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dss-287	1068	21	,	,	PUNCT
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dss-287	1068	23	.	.	PUNCT
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dss-287	1069	3	]	]	X
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dss-287	1069	7	,	,	PUNCT
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dss-287	1069	11	telescopes	telescope	NOUN
dss-287	1069	12	with	with	ADP
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dss-287	1069	16	,	,	PUNCT
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dss-287	1069	21	,	,	PUNCT
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dss-287	1069	23	.	.	PUNCT
dss-287	1070	1	[	[	X
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dss-287	1070	3	]	]	PUNCT
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dss-287	1070	10	in	in	ADP
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dss-287	1070	14	a	a	DET
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dss-287	1070	18	,	,	PUNCT
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dss-287	1070	22	(	(	PUNCT
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dss-287	1070	24	)	)	PUNCT
dss-287	1070	25	,	,	PUNCT
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dss-287	1070	27	.	.	PROPN
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dss-287	1070	29	,	,	PUNCT
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dss-287	1070	31	.	.	PUNCT
dss-287	1071	1	[	[	X
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dss-287	1071	3	]	]	PUNCT
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dss-287	1071	7	,	,	PUNCT
dss-287	1071	8	"	"	PUNCT
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dss-287	1071	11	,	,	PUNCT
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dss-287	1071	14	effects	effect	NOUN
dss-287	1071	15	,	,	PUNCT
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dss-287	1071	18	telescope	telescope	NOUN
dss-287	1071	19	making	make	VERB
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dss-287	1071	22	,	,	PUNCT
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dss-287	1071	26	,	,	PUNCT
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dss-287	1071	28	.	.	PUNCT
dss-287	1072	1	new	new	PROPN
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dss-287	1072	8	.	.	PUNCT
dss-287	1073	1	[	[	X
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dss-287	1073	3	]	]	PUNCT
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dss-287	1073	5	h.	h.	PROPN
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dss-287	1073	7	,	,	PUNCT
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dss-287	1073	9	the	the	DET
dss-287	1073	10	amateur	amateur	PROPN
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dss-287	1073	12	’s	’s	PART
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dss-287	1073	22	and	and	CCONJ
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dss-287	1073	27	,	,	PUNCT
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dss-287	1073	30	&	&	CCONJ
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dss-287	1074	1	[	[	X
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dss-287	1074	3	]	]	PUNCT
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