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	4.096	22 34 37.13952	+13 16 06.4632	0975-20993540	338.654748	+13.268462			19.2	18.8	1953.830

%0a%0a%3cP%3e%0a%3cFONT%20SIZE=%27-1%27%3e%3cEM%3e%3cFONT%20COLOR=%27#0000FF%27>%3cB%3eNote:%20%3cB%3e%3cFONT%20COLOR=%27#CD5B45%27>%20The%20current%20version%20includes%20only%20the%20North%20%28POSS-I%20plates%29%3cP%3e%0a

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	3.828	22 34 37.13136	+13 16 05.9628	EO0875-0133847	338.654714	+13.268323	19.05		2	5.33	7.9	0.36	21.34		-1	1.41	4.4	2.29
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%3cEM%3e1&%3cFONT%20COLOR=%27#CD5B45%27>%203.828&%3cFONT%20COLOR=%27#CD5B45%27>22%2034%2037.13136&%3cFONT%20COLOR=%27#CD5B45%27>%2b13%2016%2005.9628&EO0875-0133847&338.654714&%2b13.268323&19.05&%20&%202&%20%20%205.33&%20%20%207.9&%200.36&21.34&%20&-1&%20%20%201.41&%20%20%204.4&%20%202.29&%20%3cBR%3e">\Ahref='VizieR-5?-ref=VIZ663a7cdd35b89f&-out.add=.&-source=I/267/out&APM-ID===EO0875-0133740&-out.orig=o' class='full'2 9.79622 34 37.36752+13 16 11.6832EO0875-0133740338.655698+13.26991219.67  -1 0.61 4.7 0.2421.66L 0     1.99   %0a%0a%3cP%3e%0a%3cFONT%20SIZE=%27-1%27%3e%3cEM%3e%3cFONT%20COLOR=%27#0000FF%27>%3cB%3eNote:%20The%20%3cB%3eUSNO-B%20Catalog%20presents%20positions,%20proper%20motions,%20%0amagnitudes%20un%20blue,%20red%20and%20infrared,%20as%20well%20as%20star/galaxy%20estimators%0afor%201,045,175,762%20objects%20derived%20from%203,648,832,040%20separate%20observations.%0aThe%20data%20were%20taken%20from%20scans%20of%207,435%20Schmidt%20plates%0ataken%20from%20various%20sky%20surveys%20during%20the%20last%2050%20years.%3cBR%3e%0aUSNO-B1.0%20catalog%20was%20created%20by%20Dave%20Monet%20and%20collaborators%0aat%20http://www.nofs.navy.mil/data/fchpix/%20%3cBR%3e%0a%3cB%3e%3cFONT%20COLOR=%27#EE0000%27>%20Note%20that%20the%20star/galaxy%20estimators%20may%20be%20mixed%20up%0a%20in%20dense%20regions.%0a%3cP%3e%0a

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	3.205	22 34 37.09272	+13 16 05.6424	1032-0682090	338.654553	+13.268234	153	114	1981.3	-34	2	3		18.72		19.66	18.29
2	3.354	22 34 37.08672	+13 16 06.3804	1032-0682089	338.654528	+13.268439	46	193	1976.6	-12	0	5	20.19	19.29	20.06	19.22	18.90

%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 [****ClosingBrace(s)Inserted****]
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Rmag

%22>%5cFONT SIZE=-1magr_

Jmag
magHmag
magKmag
magR

1 3.20422 34 37.092672+13 16 05.639881032-0720071..338.6545528+13.2682333B -34.0 5.0 2.0 4.0        19.660B         2 3.35322 34 37.086672+13 16 06.380041032-0720070..338.6545278+13.2684389B -12.0 1.0 0.0 6.020.060B    19.220B         %0a%0a%3cP%3e%0a%3cFONT%20SIZE=%27-1%27%3e%3cEM%3e%3cFONT%20COLOR=%27#0000FF%27>%3cB%3eNote:%20This%20version%20of%20the%20%0a%3cB%3eGSC-II%0ahas%20no%20proper%20motions,%20but%20the%20limits%20on%20brightness%20which%20existed%20on%0a%20%28F<18.5,%20B_j<19.5%29%20were%20removed.%0a%25The%20data%20are%20%3cB%3e%3cFONT%20COLOR=%27#0000CD%27>copyrighted,%20check%0a%25the%20%3cB%3edata%20use%20Policy.%0a%3cP%3e%0a

Full	_r arcsec	_RAJ2000 "h:m:s"	_DEJ2000 "d:m:s"	GSC2.3	RAJ2000 deg	DEJ2000 deg	Epoch yr	Fmag mag	jmag mag	Vmag mag	Nmag mag	Class	a pix	e
1	3.689	22 34 37.12200	+13 16 05.9340	N0RY019451	338.654675	+13.268315	1995.554				18.78	3	1.84	0.26
2	4.228	22 34 37.14480	+13 16 06.6252	N0RY001948	338.654770	+13.268507	1991.702	19.27	19.70			3	2.26	0.16

%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 [****ClosingBrace(s)Inserted****]
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fl

%20

%22> 1 3.21422 34 37.09536+13 16 05.4768338.654564+13.268188 -32.5 -2.2        18.7219.6618.29 3 0 2 3.36022 34 37.09224+13 16 06.2076338.654551+13.268391 -9.2 -5.7    20.1920.0619.2919.2218.90 5 0 %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	3.361	22 34 37.09225	+13 16 06.2081	338.654551	+13.268391	0.103	0.103	19.701	0.300	19.265	0.300	19.367	0.400	18.952	0.500	1976.6800	1976.6800	-9.2	5.5	-5.7	5.5
2	3.509	22 34 37.10649	+13 16 06.0656	338.654610	+13.268352	0.035	0.032	20.501	0.202	19.660	0.400	19.562	0.089	18.652	0.116	2001.6400	2001.6400	-32.5	6.8	-2.2	6.8

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Full	_r arcsec	_RAJ2000 "h:m:s"	_DEJ2000 "d:m:s"	GSC2	RA_ICRS deg	DE_ICRS deg	objID	Epoch [****ClosingBrace(s)Inserted****]
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Epoch

%20

%22>%5cFONT SIZE=-1yrClass

Gmag
mag

OMag
mag

Bjmag
mag

Fpgmag
mag

Epgmag
mag

Npgmag
mag

Umag
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mag

Vmag
mag

umag
mag

gmag
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rmag
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imag
mag

zmag
mag

ymag
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Jmag
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Hmag
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Ksmag
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Zmag
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Ymag
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W1mag
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FUVmag
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NUVmag
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a
pix

e
pix

PA
pix

1 3.43622 34 37.1109725289+13 16 06.092708504N0RY019451338.65459147000+13.26834301000 10033232194512012.3313  20.239800      18.784400      21.25421.05420.34620.46220.32520.0252          16.73916.19411.859 8.951     1.836 0.261109.1 2 4.17922 34 37.0651217969+13 16 05.974140169N0RY001948338.65475463867+13.26850700378 1003323219481991.7000    19.70190019.265100                                        22.26421.385 2.260 0.156152.5 3 6.92022 34 36.5551192013+13 15 59.917682573N0RY033619338.65231299667+13.26664380071 10033232336192001.6423                  23.81923.85323.03122.88822.859                               %0a%0a%0a

Full	_r arcsec	_RAJ2000 "h:m:s"	_DEJ2000 "d:m:s"	Rem	Seq	RAJ2000 "h:m:s"	DEJ2000 "d:m:s"	cMag mag	eMag mag	gMag mag	iMag mag	kMag mag	nMag mag	oMag mag	pMag mag	SED
1	3.98	22 34 37.1300	+13 16 06.500		1942	22 34 37.13	+13 16 06.5	20.57	20.09	19.89	19.67	19.83	19.44	19.35	19.30	SED

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Full	_r arcsec	_RAJ2000 "h:m:s"	_DEJ2000 "d:m:s"	mode	cl	SDSS	m_	zsp	umag mag	e_ mag	gmag mag	e_ mag	rmag mag	e_ mag	imag mag	e_ [****ClosingBrace(s)Inserted****]
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e_

%20

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

e_
mag

RA_ICRS
deg

DE_ICRS
deg

ObsDate
yr

Q

1 3.49222 34 37.10565+13 16 06.117313J223437.10+131606.1    20.596 0.15519.766 0.03119.177 0.02718.934 0.03318.903 0.130338.654601+13.2683642001.71452 %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"	WISE	RAJ2000 deg	DEJ2000 deg	eeMaj arcsec	eeMin arcsec	Im	W1mag mag	e_ mag	W2mag mag	e_ mag	W3mag mag	e_ mag	W4mag mag	e_ mag	Jmag mag	Hmag mag	Kmag mag	ccf	ex	var	d2M arcsec	2M
1	3.057	22 34 37.07108	+13 16 06.1630	J223437.07+131606.1	338.654463	+13.268379	0.698	0.623	Im	16.789	0.123	16.247	0.276	11.878	0.236	9.012					0000	0	nnnn		2M
2	7.800	22 34 36.35124	+13 16 06.3029	J223436.35+131606.3	338.651464	+13.268417	1.052	0.913	Im	17.149	0.165	16.698		12.401	0.385	9.129					0000	0	nnnn		2M

%0a%0a%3cP%3e%0a%3cFONT%20SIZE=%27-1%27%3e%3cEM%3e%3cFONT%20COLOR=%27#0000FF%27>%3cB%3eNote:%20%3cP%3e%0a