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	9.591	13 20 13.30152	+57 05 12.8832	1425-07940457	200.055423	+57.086912			17.1	15.2	1953.198

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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	9.569	13 20 13.28808	+57 05 12.4512	EO0704-0264201	200.055367	+57.086792	15.65		1	8.11	19.9	0.40	17.76		1	13.29	19.1	2.11

%0a%0a%5b%2a%2a%2a%2aClosingBrace%28s%29Inserted%2a%2a%2a%2a%5d">">\scripttype='text/javascript' ts_init('!ext/apm.exe_2');

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	9.365	13 20 13.32192	+57 05 12.6636	N1113310412	200.055508	+57.086851	1993.223	14.71	0.42	15.86	0.41	3	8.06	0.51

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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	3.887	13 20 13.95480	+57 05 08.9016	1470-0263871	200.058145	+57.085806	230	4	1975.2	0	0	2	20.50				18.49
2	5.005	13 20 14.15880	+57 05 14.3808	1470-0263873	200.058995	+57.087328	567	900	1972.2	0	0	2		20.25			18.86
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%3cEM%3e2&%3cFONT%20COLOR=%27#CD5B45%27>%205.005&%3cFONT%20COLOR=%27#CD5B45%27>13%2020%2014.15880&%3cFONT%20COLOR=%27#CD5B45%27>%2b57%2005%2014.3808&1470-0263873&200.058995&%2b57.087328&567&900&1972.2&%20%20%20%20%200&%20%20%20%20%200&2&%20&20.25&%20&%20&18.86%3cBR%3e">\Ahref='VizieR-5?-ref=VIZ663707a6b7387&-out.add=.&-source=I/284/out&USNO-B1.0===1470-0263869&-out.orig=o' class='full'3 9.23813 20 13.34688+57 05 12.87241470-0263869200.055612+57.0869092313231979.2 0 0518.7615.3915.3214.8215.12 4 9.96313 20 13.26672+57 05 13.20001470-0263868200.055278+57.087000143 691972.2 0 0217.70      14.91 %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	3.889	13 20 13.954656	+57 05 08.90016	1470-0270818	..	200.0581444	+57.0858056	B	0.0	0.0	0.0	0.0	20.500	o
2	5.005	13 20 14.158656	+57 05 14.38008	1470-0270820	..	200.0589944	+57.0873278	B	0.0	0.0	0.0	0.0					20.250	e
3	9.239	13 20 13.346664	+57 05 12.86988	1470-0270816	..	200.0556111	+57.0869083	B	0.0	0.0	0.0	0.0	15.320	B			14.820	B
4	9.963	13 20 13.266672	+57 05 13.20000	1470-0270815	YM	200.0552778	+57.0870000	B	0.0	0.0	0.0	0.0	18.260	o	17.270	Y			15.054	14.374	14.143

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Full	_r arcsec	_RAJ2000 "h:m:s"	_DEJ2000 [****ClosingBrace(s)Inserted****]
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%3cEM%3e%20%3cFONT%20COLOR=%27#CD5B45%27>_DEJ2000

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

RAJ2000
degDEJ2000
degEpoch
yrFmag
magjmag
magVmag
magNmag
magClass

a
pixe

1 9.36513 20 13.32216+57 05 12.6672N4C4000412200.055509+57.0868521993.22314.7115.8616.8115.083 8.06 0.51 %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	3.879	13 20 13.96080	+57 05 08.7504	200.058170	+57.085764	2.4	1.0			20.50				18.49	2	0
2	4.670	13 20 14.16288	+57 05 14.0244	200.059012	+57.087229	9.2	-22.9					20.25		18.86	2	0
3	9.729	13 20 13.29144	+57 05 13.0668	200.055381	+57.086963	-12.0	11.0	15.055	14.143	18.76	15.32	15.39	14.82	15.12	6	0
4	9.820	13 20 13.27920	+57 05 13.0596	200.055330	+57.086961	1.9	4.0	15.055	14.143	17.70				14.91	3	0

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Full	_r arcsec	_RAJ2000 "h:m:s"	_DEJ2000 "d:m:s"	ID	RAICRS deg	DEICRS deg	pmRAp mas/yr	pmDEp mas/yr	pmRAx mas/yr	[****ClosingBrace(s)Inserted****]
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mas/yr&%">\BegDIVclass='sort-down ' </A>decpmDEx
mas/yrFmag
magBjmag
magVmag
magNmag
magJmag
mage_
magHmag
mage_
magKmag
mage_
mag2Mkey

Bmag
magRmag
magFld

dT
yrfg

fs

M

1 9.81213 20 13.28041+57 05 13.0631XPM 294-0396265200.055335+57.086962 -0.88 3.17 -0.67 3.5014.70715.85816.80515.08315.055  14.374  14.143 0.068 61511864017.115.2 9746.05559200M %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"	RAJ2000 deg	DEJ2000 deg	e_RAJ2000 (...)	e_DEJ2000 arcsec	magBJ 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	9.729	13 20 13.29145	+57 05 13.0670	200.055381	+57.086963	0.064	0.064	15.858	0.300	14.707	0.300	14.935	0.400	14.002	0.500	1991.4000	1991.4000	-12.0	3.9	11.0	3.9
2	9.749	13 20 13.28625	+57 05 13.0065	200.055359	+57.086946	0.006	0.006	17.700	0.400	16.946	0.200	16.504	0.080	15.253	0.110	2003.1800	2003.1800	1.9	5.3	4.0	5.3

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Full	_r arcsec	_RAJ2000 "h:m:s"	_DEJ2000 "d:m:s"	URAT1	RAICRS deg	DEICRS deg	Epoch yr	f.mag mag	e_ mag	pmRA [****ClosingBrace(s)Inserted****]
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pmRA

%20

%22>%5cFONT SIZE=-1mas/yrpmDE
mas/yr

Jmag
mag

Hmag
mag

Kmag
mag

Bmag
mag

Vmag
mag

gmag
mag

rmag
mag

imag
mag

1 9.63513 20 13.280931+57 05 13.03468736-242501200.0554039+57.08691972013.74116.729 0.025 9.5 -9.015.05514.37414.143           %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"	RAICRS deg	e_ mas	DEICRS deg	e_ mas	ID	Type	pmRA mas/yr	e_ (...)	pmDE mas/yr	e_ (...)	Nobs	Dt yr	Rmag mag	Bmag mag	Nmag mag	Vmag mag	Jmag mag	Hmag mag	Kmag mag
1	9.533	13 20 13.308935	+57 05 12.87990	200.0554539	66.00	+57.0869111	44.00	54772+0000412	4	2.3	2.9	0.9	1.9	9	44.282	14.707	15.858	15.083	16.805	15.055	14.374	14.143

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