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	7.141	10 05 31.32480	-20 36 05.1408	0675-10781468	151.380520	-20.601428			16.0	15.9	1982.160
2	9.894	10 05 31.34208	-20 36 02.3724	0675-10781474	151.380592	-20.600659			16.4	15.5	1953.181

%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	2.218	10 05 31.33488	-20 36 10.0800	0693-0239808	151.380562	-20.602800	117	274	1973.6	0	0	2	18.87				18.26
2	6.522	10 05 31.33344	-20 36 05.7528	0693-0239807	151.380556	-20.601598	173	39	1974.2	0	0	2		16.48		16.17
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%3cEM%3e2&%3cFONT%20COLOR=%27#CD5B45%27>%206.522&%3cFONT%20COLOR=%27#CD5B45%27>10%2005%2031.33344&%3cFONT%20COLOR=%27#CD5B45%27>-20%2036%2005.7528&0693-0239807&151.380556&-20.601598&173&%2039&1974.2&%20%20%20%20%200&%20%20%20%20%200&2&%20&16.48&%20&16.17&%20%3cBR%3e">\Ahref='VizieR-5?-ref=VIZ662a7b1c35bdb1&-out.add=.&-source=I/284/out&USNO-B1.0===0693-0239809&-out.orig=o' class='full'3 7.72310 05 31.34352-20 36 04.54320693-0239809151.380598-20.601262 313441970.1 10 -2417.7316.0115.80  15.89 %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	2.218	10 05 31.334664	-20 36 10.08000	0693-0245132	..	151.3805611	-20.6028000	B	0.0	0.0	0.0	0.0	18.870	o
2	6.525	10 05 31.333344	-20 36 05.74992	0693-0245131	..	151.3805556	-20.6015972	B	0.0	0.0	0.0	0.0					16.170	B
3	7.727	10 05 31.343328	-20 36 04.53996	0693-0245133	..	151.3805972	-20.6012611	B	10.0	0.0	-2.0	9.0	15.800	B			16.010	e

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Full	_r arcsec	_RAJ2000 "h:m:s"	_DEJ2000 "d:m:s"	RAJ2000 deg	DEJ2000 deg	pmRA mas/yr	[****ClosingBrace(s)Inserted****]
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mas/yr&%">\BegDIVclass='sort-down ' </A>decpmDE
mas/yrJmag
mag

Kmag
magb1mag
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1 2.29510 05 31.34016-20 36 09.9900151.380584-20.602775 -3.1 -3.8    18.87      18.26 2 0 2 6.64810 05 31.34232-20 36 05.6196151.380593-20.601561 -0.8 2.7        16.4816.17   2 0 3 7.91310 05 31.34592-20 36 04.3524151.380608-20.601209 3.7 0.7    17.7315.8016.01  15.89 4 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	7.913	10 05 31.34594	-20 36 04.3521	151.380608	-20.601209	0.115	0.115	15.800	0.400	16.010	0.400	15.932	0.400	16.014	0.500	1970.2000	1970.2000	3.7	6.5	0.7	6.5

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

%20

%22>%5cFONT SIZE=-1magBjmag
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pix

1 5.91710 05 31.3499856000-20 36 06.347196000S4ZX032529151.38062494000-20.60176311000 21211031325292013.3973                      19.82918.417  19.0393                             2 8.23510 05 31.3412568000-20 36 04.032612000S4ZX032567151.38058857000-20.60112017000 21211031325672012.3043                    19.38919.939                13.96913.729 9.806 8.247           %0a%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	9.358	10 05 31.32992	-20 36 02.9149	J100531.32-203602.9	151.380541	-20.600810	0.170	0.120	Im	14.012	0.035	13.763	0.045	9.889	0.049	8.285	0.323				0000	0	nnnn		2M

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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

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1 9.57710 05 31.309261-20 36 02.71470J100531.30-203602.7151.3804553-20.6007541Im13.969 0.03113.729 0.039 9.806 0.050 8.247 0.359            00004nnnn 52 193 1270 83AAAC  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

Full	_r arcsec	_RAJ2000 "h:m:s"	_DEJ2000 "d:m:s"	RAJ2000 deg	DEJ2000 deg	objID	f_objID	Qual	e_RAJ2000 (...)	e_DEJ2000 arcsec	Epoch d	Ns	Nd	gmag mag	e_ mag	gKmag mag	e_ mag	gFlags	rmag mag	e_ mag	rKmag mag	e_ mag	rFlags	imag mag	e_ mag	iKmag mag	e_ mag	iFlags	zmag mag	e_ mag	zKmag mag	e_ mag	zFlags [****ClosingBrace(s)Inserted****]
zFlags ">
	ymag mag	e_ mag	yKmag mag	e_ mag	yFlags
1	5.917	10 05 31.34998560	-20 36 06.3471960	151.380624940	-20.601763110	83271513806198199	310456320	37	0.0386	0.0386	56371.397303240	0	3					0	19.8290	0.0355	18.2990	0.0224	16777496					0					0	19.0393	0.0714	18.5668	0.0601	16781336
2	8.235	10 05 31.34125680	-20 36 04.0326120	151.380588570	-20.601120170	83271513805308759	310456320	37	0.0221	0.0221	56170.303993060	0	3	19.3894	0.0285	17.5003	0.0191	16777496	19.9386	0.0362	18.5139	0.0206	16781336					0					0					0

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Full	_r arcsec	_RAJ2000 "h:m:s"	_DEJ2000 "d:m:s"	ObjectId	RAICRS deg	DEICRS deg	e_RAICRS mas	e_DEICRS mas	SMSS	EpMean d	flags	ClassStar	RadrPetro pix	a pix	b pix	PA deg	uPSF mag	uPetro mag	vPSF mag	vPetro mag	gPSF mag	gPetro mag	rPSF mag	rPetro mag	iPSF mag	iPetro mag	zPSF mag	zPetro mag	(u-v)PSF mag	(u-g)PSF mag	(g-r)PSF mag	(g-i)PSF mag	(i-z)PSF mag
1	6.504	10 05 31.39245987	-20 36 05.7709122	55727879	151.380801916	-20.601603031	34	36	100531.39-203605.7	56768.4360	1	0.641	8.58	1.84	0.89	-18.89									18.417	17.565

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