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	6.681	22 02 36.88680	+31 46 28.2000	1200-18832639	330.653695	+31.774500			19.2	18.3	1951.733
2	15.805	22 02 35.49216	+31 46 40.6632	1200-18832223	330.647884	+31.777962			17.4	16.7	1951.733
3	29.186	22 02 36.28872	+31 47 02.7816	1200-18832464	330.651203	+31.784106			19.8	18.0	1951.733

%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 [****ClosingBrace(s)Inserted****]
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b-r

%22>%5cFONT SIZE=-1magMflag

1 0.41122 02 36.63072+31 46 34.2228EO0383-0157597330.652628+31.77617320.00L 0      19.95  -1 0.33 5.2 -0.05   2 5.16022 02 36.82752+31 46 29.5212EO0383-0157701330.653448+31.77486717.95   2 12.65 12.1 0.6520.03  -1 -0.15 5.1 2.08   315.67022 02 35.50272+31 46 40.6308EO0383-0157451330.647928+31.77795317.11  -1 -0.37 7.9 0.1118.31  -1 -0.24 7.7 1.20   428.26322 02 36.35544+31 47 01.9608EO0383-0156960330.651481+31.78387817.91   2 12.85 11.0 0.5521.30  -1 1.97 3.5 3.38   %0a%0a%3cP%3e%0a%3cFONT%20SIZE=%27-1%27%3e%3cEM%3e%3cFONT%20COLOR=%27#0000FF%27>%3cB%3eNote:%20The%20construction%20of%20the%20%0a%3cB%3eGSC-II%20%0ais%20still%20in%20progress:%20this%0aversion%20has%20no%20proper%20motions,%20and%20the%20magnitude%20limits%20are%2018.5%20in%20F%20%28red%29%0aand%2019.5%20in%20J%20%28blue%29.%20The%20data%20are%20%3cB%3e%3cFONT%20COLOR=%27#0000CD%27>copyrighted,%20check%20%0athe%20%3cB%3edata%20use%20Policy.%0a%3cP%3e%0a

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	7.205	22 02 36.86760	+31 46 27.4620	N032202028927	330.653615	+31.774295	1987.653	18.21	0.37			3	2.49	0.15
2	15.519	22 02 35.50824	+31 46 40.4256	N032202028974	330.647951	+31.777896	1987.653	17.09	0.37	17.96	0.37	0	2.79	0.11
3	28.823	22 02 36.30672	+31 47 02.4468	N032202029037	330.651278	+31.784013	1987.653	18.48	0.37			3	2.27	0.08

%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 [****ClosingBrace(s)Inserted****]
">

Imag

%20

%22>%5cFONT SIZE=-1mag 1 0.21922 02 36.59544+31 46 33.83041217-0582203330.652481+31.776064138 931981.4 0 0419.48  19.9519.3318.60 2 6.89822 02 36.87216+31 46 27.84001217-0582206330.653634+31.774400 771561975.4 0 0519.7018.8419.4118.4817.80 315.53622 02 35.51736+31 46 40.71001217-0582196330.647989+31.777975 811371975.4 8 4517.7017.0117.7316.8216.70 425.66722 02 36.64152+31 46 59.55241217-0582205330.652673+31.7832091384771991.3 -106 83    20.6819.1418.15 529.02922 02 36.29280+31 47 02.63041217-0582200330.651220+31.7840641311701975.4 0 0520.2918.3520.0918.3917.38 629.64122 02 38.51880+31 46 50.84041217-0582219330.660495+31.7807899999991990.9 0 03    20.9220.1318.66 %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	0.220	22 02 36.595344	+31 46 33.83004	1217-0608160	..	330.6524806	+31.7760639	B	0.0	0.0	0.0	0.0	19.950	B			19.330	B
2	6.897	22 02 36.871992	+31 46 27.84000	1217-0608163	YM	330.6536333	+31.7744000	B	0.0	0.0	0.0	0.0	18.350	Y			18.480	B	16.603	15.986	16.085
3	15.537	22 02 35.517336	+31 46 40.71000	1217-0608153	YM	330.6479889	+31.7779750	B	8.0	2.0	4.0	4.0	17.340	Y	17.250	Y	16.820	B	16.074	15.907	15.723
4	25.665	22 02 36.641328	+31 46 59.54988	1217-0608162	..	330.6526722	+31.7832083	B	-106.0	15.0	8.0	53.0	20.680	B			19.140	B
5	29.029	22 02 36.292656	+31 47 02.63004	1217-0608157	.M	330.6512194	+31.7840639	B	0.0	0.0	0.0	0.0	20.090	B			18.390	B	15.971	15.291	15.173
6	29.639	22 02 38.518656	+31 46 50.84004	1217-0608177	..	330.6604944	+31.7807889	B	0.0	0.0	0.0	0.0	20.920	B			20.130	B
[****ClosingBrace(s)Inserted****]
6	29.639	22 02 38.518656	+31 46 50.84004	1217-0608177	..	330.6604944	+31.7807889	B	0.0	0.0	0.0	0.0	20.920	B			20.130	B

%22>\EndTABLESORT

Full	_r arcsec	_RAJ2000 "h:m:s"	_DEJ2000 "d:m:s"	RAJ2000 deg	DEJ2000 deg	Jmag mag	Fmag mag	Nmag mag	pmRA mas/yr	pmDE mas/yr	Epoch yr	Field
1	7.430	22 02 36.85350072	+31 46 27.1260372	330.653556253	+31.774201677	19.5	18.3	17.8	-7.562	-19.886	1974.638	Field
2	15.479	22 02 35.50704888	+31 46 40.2966984	330.647946037	+31.777860194	17.7	16.9	17.0	5.253	-4.469	1978.608	Field

%0a%0a%3cP%3e%0a%3cFONT%20SIZE=%27-1%27%3e%3cEM%3e%3cFONT%20COLOR=%27#0000FF%27>%3cB%3eNote:%20Zone%20-30/%2b50deg%3cP%3e%0a

Full	_r arcsec	_RAJ2000 "h:m:s"	_DEJ2000 "d:m:s"	CMC14	f_	RAICRS deg	DEICRS deg	r'mag mag	Nt	Jmag mag	Hmag mag	Ksmag mag
1	15.364	22 02 35.52216	+31 46 40.4400	220235.5+314640		330.648009	+31.777900	17.140	1	16.075

%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 [****ClosingBrace(s)Inserted****]
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%3cBR%3e%0a%3cEM%3e1&%3cFONT%20COLOR=%27#CD5B45%27>%200.301&%3cFONT%20COLOR=%27#CD5B45%27>22%2002%2036.59232&%3cFONT%20COLOR=%27#CD5B45%27>%2b31%2046%2033.7224&N2VC028942&330.652468&%2b31.776034&1987.653&19.13&20.57&16.56&18.47&3&%20%202.03&%200.07%3cBR%3e%0a%3cEM%3e2&%3cFONT%20COLOR=%27#CD5B45%27>%207.202&%3cFONT%20COLOR=%27#CD5B45%27>22%2002%2036.86760&%3cFONT%20COLOR=%27#CD5B45%27>%2b31%2046%2027.4656&N2VC028927&330.653615&%2b31.774296&1987.653&18.21&20.00&18.51&17.56&3&%20%202.49&%200.15%3cBR%3e%0a%3cEM%3e3&%3cFONT%20COLOR=%27#CD5B45%27>15.518&%3cFONT%20COLOR=%27#CD5B45%27>22%2002%2035.50848&%3cFONT%20COLOR=%27#CD5B45%27>%2b31%2046%2040.4292&N2VC028974&330.647952&%2b31.777897&1987.653&17.09&17.96&17.31&16.68&0&%20%202.79&%200.11%3cBR%3e%0a%3cEM%3e4&%3cFONT%20COLOR=%27#CD5B45%27>25.398&%3cFONT%20COLOR=%27#CD5B45%27>22%2002%2036.70656&%3cFONT%20COLOR=%27#CD5B45%27>%2b31%2046%2059.2572&N2VC029038&330.652944&%2b31.783127&1987.653&18.86&21.40&%20&18.00&3&%20%202.24&%200.11%3cBR%3e%0a%3cEM%3e5&%3cFONT%20COLOR=%27#CD5B45%27>26.360&%3cFONT%20COLOR=%27#CD5B45%27>22%2002%2038.19240&%3cFONT%20COLOR=%27#CD5B45%27>%2b31%2046%2050.8800&N2VC028992&330.659135&%2b31.780800&1987.653&20.05&%20&%20&18.74&3&%20%201.62&%200.19%3cBR%3e%0a%3cEM%3e6&%3cFONT%20COLOR=%27#CD5B45%27>27.756&%3cFONT%20COLOR=%27#CD5B45%27>22%2002%2038.45880&%3cFONT%20COLOR=%27#CD5B45%27>%2b31%2046%2048.5796&N2VC035082&330.660245&%2b31.780161&1987.653&20.47&22.48&%20&%20&3&%20%201.51&%200.40%3cBR%3e%0a%3cEM%3e7&%3cFONT%20COLOR=%27#CD5B45%27>28.822&%3cFONT%20COLOR=%27#CD5B45%27>22%2002%2036.30696&%3cFONT%20COLOR=%27#CD5B45%27>%2b31%2047%2002.4468&N2VC029037&330.651279&%2b31.784013&1987.653&18.48&21.16&18.70&17.03&3&%20%202.27&%200.08%3cBR%3e%0a %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	0.513	22 02 36.58512	+31 46 33.5064	330.652438	+31.775974	-4.4	-9.8			19.48	19.95		19.33	18.60	4	0
2	7.189	22 02 36.86256	+31 46 27.4476	330.653594	+31.774291	-3.2	-13.5	16.604	16.085	19.70	19.41	18.84	18.48	17.80	6	0
3	15.517	22 02 35.50896	+31 46 40.4400	330.647954	+31.777900	4.7	-3.1	16.075	15.723	17.70	17.73	17.01	16.82	16.70	6	0
4	28.753	22 02 36.29568	+31 47 02.3568	330.651232	+31.783988	4.2	-10.2	15.971	15.173	20.29	20.09	18.35	18.39	17.38	6	0

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