The 3 columns in color are computed by VizieR, and are not part of the original data.

Note: USNO-A2.0 contains 526,280,881 sources, and is based on a re-reduction of the Precision Measuring Machine (PMM) scans from POSS-I O and E plates (>=-18°) and SRC-J and ESO-R plates (<=-20°). USNO-A2.0 was created by Dave Monet () and collaborators at Flagstaff Station, U.S. Naval Observatory.
The major difference between USNO-A2.0 and its previous version USNO-A1.0 is that A1.0 used the Guide Star Catalog as its reference frame whereas A2.0 uses the ICRF as realized by the USNO ACT catalog (Urban et al. 1997). The VizieR search engine uses an on-line compressed version (3.6Gbytes) which was generated at CDS.

Full	_r arcsec	_RAJ2000 "h:m:s"	_DEJ2000 "d:m:s"	USNO-A2.0	RAJ2000 deg	DEJ2000 deg	ACTflag	Mflag	Bmag mag	Rmag mag	Epoch yr
1	4.192	17 19 58.20744	+60 53 31.4304	1500-06251784	259.992531	+60.892064			12.9	12.5	1954.572

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Full	_r arcsec	_RAJ2000 "h:m:s"	_DEJ2000 "d:m:s"	APM-ID	RAJ2000 deg	DEJ2000 deg	rmag mag	l_	rClass	rStel	rDiam arcsec	rEll	bmag mag	l_	bClass	bStel	bDiam arcsec	b-r mag	Mflag
1	4.563	17 19 58.16472	+60 53 31.1604	EO1148-0107446	259.992353	+60.891989	10.41		1	44.89	26.8	0.44	11.05		1	10.65	27.5	0.64
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Note: The construction of the GSC-II is still in progress: this version has no proper motions, and the magnitude limits are 18.5 in F (red) and 19.5 in J (blue). The data are copyrighted, check the data use Policy.

Full	_r arcsec	_RAJ2000 "h:m:s"	_DEJ2000 "d:m:s"	GSC2.2	RA(ICRS) deg	DE(ICRS) deg	Epoch yr	Rmag mag	e_ mag	Bjmag mag	e_ mag	Class	a pix	e
1	4.565	17 19 58.17144	+60 53 30.9984	N11213003751	259.992381	+60.891944	1993.305	12.44	0.42	13.97	0.43	3	11.57	0.44

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Full	_r arcsec	_RAJ2000 "h:m:s"	_DEJ2000 "d:m:s"	USNO-B1.0	RAJ2000 deg	DEJ2000 deg	e_RAJ2000 mas	e_DEJ2000 mas	Epoch yr	pmRA mas/yr	pmDE mas/yr	Ndet	B1mag mag	R1mag mag	B2mag mag	R2mag mag	Imag mag
1	3.977	17 19 58.23816	+60 53 31.4232	1508-0230289	259.992659	+60.892062	95	202	1976.4	12	4	5	12.68	12.32	11.30	12.39	12.63
2	4.577	17 19 58.17480	+60 53 30.8904	1508-0230288	259.992395	+60.891914	120	63	1973.6	-6	-16	4	13.00	11.42	12.72	11.84
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%3cEM%3e2&%3cFONT%20COLOR=%27#CD5B45%27>%204.577&%3cFONT%20COLOR=%27#CD5B45%27>17%2019%2058.17480&%3cFONT%20COLOR=%27#CD5B45%27>%2b60%2053%2030.8904&1508-0230288&259.992395&%2b60.891914&120&%2063&1973.6&%20%20%20%20-6&%20%20%20-16&4&13.00&11.42&12.72&11.84&%20%3cBR%3e">\Ahref='VizieR-5?-ref=VIZ66440af430c62d&-out.add=.&-source=I/284/out&USNO-B1.0===1508-0230287&-out.orig=o' class='full'3 5.33917 19 58.06608+60 53 30.86161508-0230287259.991942+60.891906566 591980.0 0 0312.86    12.5313.37 4 8.96517 19 57.63336+60 53 28.95001508-0230284259.990139+60.8913751845091973.8 0 02  16.70    14.76 %0a%0a%3cP%3e%0a%3cFONT%20SIZE=%27-1%27%3e%3cEM%3e%3cFONT%20COLOR=%27#0000FF%27>%3cB%3eNote:%20The%20Naval%20Observatory%20Merged%20Astrometric%20Dataset%20%28NOMAD%29%20contains%0aastrometric%20and%20photometric%20data%20for%20over%201%20billion%20stars%20derived%20from%0athe%20Hipparcos%20%28I/239%29,%20Tycho-2%20%28I/259%29,%20UCAC2%20%28I/289%29,%20and%20USNO-B1.0%0a%28I/284%29%20catalogs%20for%20astrometry%20and%20optical%20photometry,%20supplemented%0aby%202MASS%20%28II/246%29%20near-infrared%20photometry.%3cBR%3e%0a%3cFONT%20SIZE=%27-1%27%3eAn%20efficient%20remote%20query%20program%20%3cB%3efindnomad1%20is%0aavailable%20in%20the%20cdsclient%20%0apackage,%20for%20Unix/Linux%20platforms%0a%3cP%3e%0a

Full	_r arcsec	_RAJ2000 "h:m:s"	_DEJ2000 "d:m:s"	NOMAD1	YM	RAJ2000 deg	DEJ2000 deg	r	pmRA mas/yr	e_ (...)	pmDE mas/yr	e_ (...)	Bmag mag	r_	Vmag mag	r_	Rmag mag	r_	Jmag mag	Hmag mag	Kmag mag	R
1	3.979	17 19 58.237992	+60 53 31.41996	1508-0237492	..	259.9926583	+60.8920611	B	12.0	3.0	4.0	6.0	11.300	B			12.390	B
2	4.578	17 19 58.174656	+60 53 30.89004	1508-0237491	..	259.9923944	+60.8919139	B	-6.0	3.0	-16.0	1.0	12.720	B			11.840	B
3	5.340	17 19 58.066008	+60 53 30.86016	1508-0237490	YM	259.9919417	+60.8919056	B	0.0	0.0	0.0	0.0	16.650	o	15.960	Y	12.530	B	15.952	14.173	13.913
4	8.966	17 19 57.633336	+60 53 28.95000	1508-0237487	..	259.9901389	+60.8913750	B	0.0	0.0	0.0	0.0					16.700	e

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Full	_r arcsec	_RAJ2000 [****ClosingBrace(s)Inserted****]
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%3cEM%3e%20%3cFONT%20COLOR=%27#CD5B45%27>_RAJ2000

%22>%5cFONT SIZE=-1"h:m:s" _DEJ2000
"d:m:s"GSC2.3

RAJ2000
degDEJ2000
degEpoch
yrFmag
magjmag
magVmag
magNmag
magClass

a
pixe

1 4.56217 19 58.17168+60 53 31.0020N4FK003751259.992382+60.8919451993.30512.4413.9714.0612.723 11.57 0.44 %0a%0a

Full	_r arcsec	_RAJ2000 "h:m:s"	_DEJ2000 "d:m:s"	RAJ2000 deg	DEJ2000 deg	pmRA mas/yr	pmDE mas/yr	Jmag mag	Kmag mag	b1mag mag	b2mag mag	r1mag mag	r2mag mag	imag mag	No	fl
1	5.086	17 19 58.14984	+60 53 30.0516	259.992291	+60.891681	-7.1	-26.1	15.953	13.913	12.68	11.30	12.32	12.39	12.63	6	1
2	5.202	17 19 58.13592	+60 53 29.9940	259.992233	+60.891665	-14.2	-32.5	15.953	13.913	13.00	12.72	11.42	11.84		5	1
3	5.336	17 19 58.11504	+60 53 29.9976	259.992146	+60.891666	9.9	-17.5	15.953	13.913	12.86			12.53	13.37	4	1
4	8.770	17 19 57.64080	+60 53 29.3388	259.990170	+60.891483	3.4	12.1					16.70		14.76	2	0

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Full	_r arcsec	_RAJ2000 "h:m:s"	_DEJ2000 "d:m:s"	RAJ2000 deg	DEJ2000 deg	e_RAJ2000 (...)	e_DEJ2000 [****ClosingBrace(s)Inserted****]
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e_DEJ2000

%20

%22>%5cFONT SIZE=-1arcsecmagBJ
mag

e_
mag

magRF
mag

e_
mag

magG
mag

e_
mag

magGrvs
mag

e_
mag

alphaEpoch
yr

deltaEpoch
yr

pmRA
mas/yr

e_
(...)

pmDE
mas/yr

e_
(...)

1 4.16117 19 58.23990+60 53 30.8188259.992666+60.891894 0.024 0.02313.974 0.30012.435 0.30015.309 0.08014.376 0.1102000.26002000.2600 -7.1 4.1 -26.1 4.1 2 5.20217 19 58.13593+60 53 29.9939259.992233+60.891665 0.066 0.06612.720 0.40011.840 0.40012.033 0.40011.291 0.5001990.99001990.9900 -14.2 4.1 -32.5 4.1 3 5.33517 19 58.11504+60 53 29.9978259.992146+60.891666 0.072 0.06912.860 0.40012.530 0.40012.605 0.40012.271 0.5001994.24001994.2400 9.9 5.5 -17.5 5.5 %0a%0a%3cP%3e%0a%3cFONT%20SIZE=%27-1%27%3e%3cEM%3e%3cFONT%20COLOR=%27#0000FF%27>%3cB%3eNote:%20%3cP%3e%0a

Full	_r arcsec	_RAJ2000 "h:m:s"	_DEJ2000 "d:m:s"	URAT1	RAICRS deg	DEICRS deg	Epoch yr	f.mag mag	e_ mag	pmRA mas/yr	pmDE mas/yr	Jmag mag	Hmag mag	Kmag mag	Bmag mag	Vmag mag	gmag mag	rmag mag	imag mag
1	4.433	17 19 58.135437	+60 53 29.97104	755-231432	259.9924356	+60.8919814	2013.419	16.315	0.066	26.7	86.6	15.953	14.174	13.913

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