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	4.547	10 51 48.48000	+08 50 27.2328	0975-06590421	162.952000	+08.840898			17.8	17.8	1954.110

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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	4.395	10 51 48.49080	+08 50 27.1716	EO0976-0246043	162.952045	+08.840881	17.76		1	9.12	12.2	0.21	18.99		1	10.36	13.2	1.23
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%3cEM%3e1&%3cFONT%20COLOR=%27#CD5B45%27>%204.395&%3cFONT%20COLOR=%27#CD5B45%27>10%2051%2048.49080&%3cFONT%20COLOR=%27#CD5B45%27>%2b08%2050%2027.1716&EO0976-0246043&162.952045&%2b08.840881&17.76&%20&%201&%20%20%209.12&%20%2012.2&%200.21&18.99&%20&%201&%20%2010.36&%20%2013.2&%20%201.23&%20%3cBR%3e">\Ahref='VizieR-5?-ref=VIZ66407faa298347&-out.add=.&-source=I/267/out&APM-ID===EO0976-0245710&-out.orig=o' class='full'217.12510 51 48.75288+08 50 44.8620EO0976-0245710162.953137+08.84579517.99  -1 -0.23 8.4 0.1422.25L 0     4.26   328.89610 51 47.54016+08 50 05.5032EO0976-0246389162.948084+08.83486219.74   1 4.83 7.7 0.7620.78  -1 1.60 7.0 1.04   %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	3.469	10 51 48.55152	+08 50 27.4596	N2031130973	162.952298	+08.840961	1993.220	16.95	0.42	17.76	0.42	3	6.60	0.36

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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	2.705	10 51 48.60744	+08 50 28.3812	0988-0204767	162.952531	+08.841217	999	137	1985.9	18	52	4	18.81		19.89	17.79	17.18
2	3.216	10 51 48.56808	+08 50 27.5928	0988-0204766	162.952367	+08.840998	146	182	1977.9	18	8	5	18.58	17.50	17.32	16.97	17.34
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%3cEM%3e2&%3cFONT%20COLOR=%27#CD5B45%27>%203.216&%3cFONT%20COLOR=%27#CD5B45%27>10%2051%2048.56808&%3cFONT%20COLOR=%27#CD5B45%27>%2b08%2050%2027.5928&0988-0204766&162.952367&%2b08.840998&146&182&1977.9&%20%20%20%2018&%20%20%20%20%208&5&18.58&17.50&17.32&16.97&17.34%3cBR%3e">\Ahref='VizieR-5?-ref=VIZ66407faa298347&-out.add=.&-source=I/284/out&USNO-B1.0===0988-0204773&-out.orig=o' class='full'3 3.22510 51 48.99936+08 50 28.28040988-0204773162.954164+08.8411896917751972.0 0 02  19.57  19.78   4 4.86310 51 48.45888+08 50 27.18240988-0204765162.951912+08.840884 533261978.1 -62 -4519.5118.8919.4918.6416.36 523.60510 51 48.74544+08 50 51.34200988-0204769162.953106+08.8475951021761981.5 -2 1403  18.0920.5819.39   628.79810 51 47.50752+08 50 06.04320988-0204762162.947948+08.8350121101041981.2 0 0319.80  20.3019.55   %0a%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	2.706	10 51 48.607344	+08 50 28.38012	0988-0208366	..	162.9525306	+08.8412167	B	18.0	44.0	52.0	5.0	19.890	B			17.790	B
2	3.217	10 51 48.568008	+08 50 27.58992	0988-0208365	..	162.9523667	+08.8409972	B	18.0	4.0	8.0	6.0	17.320	B			16.970	B
3	3.225	10 51 48.999336	+08 50 28.28004	0988-0208372	..	162.9541639	+08.8411889	B	0.0	0.0	0.0	0.0					19.780	B
4	4.867	10 51 48.458664	+08 50 27.17988	0988-0208364	Y.	162.9519111	+08.8408833	B	-62.0	1.0	-4.0	11.0	18.350	Y			18.640	B
5	23.603	10 51 48.745344	+08 50 51.33984	0988-0208368	..	162.9531056	+08.8475944	B	-2.0	3.0	140.0	6.0	20.580	B			19.390	B
6	28.802	10 51 47.507328	+08 50 06.03996	0988-0208361	..	162.9479472	+08.8350111	B	0.0	0.0	0.0	0.0	20.300	B			19.550	B
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6	28.802	10 51 47.507328	+08 50 06.03996	0988-0208361	..	162.9479472	+08.8350111	B	0.0	0.0	0.0	0.0	20.300	B			19.550	B

%22>\EndTABLESORT

Note: This version of the GSC-II has no proper motions, but the limits on brightness which existed on GSC2.2 (F<18.5, B_j<19.5) were removed.

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	3.469	10 51 48.55152	+08 50 27.4632	N6ZG000973	162.952298	+08.840962	1993.220	16.95	17.76	18.74	17.77	3	6.60	0.36
2	22.309	10 51 48.74784	+08 50 50.0460	N6ZG007229	162.953116	+08.847235	1993.220	19.89	21.86			3	2.26	0.10
3	28.855	10 51 47.49840	+08 50 06.0864	N6ZG000905	162.947910	+08.835024	1993.220	20.01	20.16			0	1.80	0.09

%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 [****ClosingBrace(s)Inserted****]
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%27%29%22%20onMouseOut=%22laz%28%29%22>imag

%22>%5cFONT SIZE=-1magNo

fl

1 3.19710 51 49.00008+08 50 27.9348162.954167+08.841093 10.0 -18.6        19.5719.78   2 0 2 3.26810 51 48.56736+08 50 28.2840162.952364+08.841190 1.4 55.3    18.8119.89  17.7917.18 4 1 3 3.37910 51 48.55776+08 50 27.4416162.952324+08.840956 11.9 7.5    18.5817.3217.5016.9717.34 5 0 4 5.04610 51 48.44760+08 50 27.0456162.951865+08.840846 -70.3 -5.6    19.5119.4918.8918.6416.36 5 0 523.43110 51 48.73224+08 50 51.1620162.953051+08.847545 -11.3 141.7      20.5818.0919.39   3 0 629.01510 51 47.49336+08 50 05.9388162.947889+08.834983 -9.2 3.2    19.8020.30  19.55   3 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	3.268	10 51 48.56735	+08 50 28.2839	162.952364	+08.841190	0.115	0.115	19.890	0.400	17.790	0.400	17.955	0.400	16.433	0.500	1985.9900	1985.9900	1.4	6.2	55.3	6.2
2	3.379	10 51 48.55774	+08 50 27.4419	162.952324	+08.840956	0.103	0.103	17.763	0.300	16.954	0.300	17.136	0.400	16.444	0.500	1977.9400	1977.9400	11.9	5.3	7.5	5.3
3	3.386	10 51 48.55751	+08 50 27.4067	162.952323	+08.840946	0.105	0.169	19.490	0.400	18.640	0.400	17.759	0.084	16.891	0.113	2006.3900	2006.3900	-70.3	5.2	-5.6	5.2
4	22.123	10 51 48.79812	+08 50 49.8661	162.953326	+08.847185	0.059	0.053	21.857	0.300	19.892	0.300	20.889	0.140	19.603	0.159	2006.3900	2006.3900	-11.3	6.8	141.7	6.8
5	28.967	10 51 47.49584	+08 50 05.9705	162.947899	+08.834992	0.017	0.016	20.155	0.300	20.011	0.300	20.487	0.095	19.961	0.121	2006.3900	2006.3900	-9.2	6.9	3.2	6.9

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Full	_r arcsec	_RAJ2000 "h:m:s"	_DEJ2000 "d:m:s"	RAICRS [****ClosingBrace(s)Inserted****]
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RAICRS

%20

%22>%5cFONT SIZE=-1dege_
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 3.65710 51 48.540516+08 50 27.22714162.9522521 95.00+08.8408964 57.0058204+00009734 10.7 5.0 -1.4 3.0 743.084 16.954 17.763 17.773 18.739       229.09410 51 47.503738+08 50 05.70080162.9479322 62.00+08.8349169 83.0058204+00009053 -9.5 2.9 2.7 3.9 543.084 20.011 20.155           %0a%0a

Full	_r arcsec	_RAJ2000 "h:m:s"	_DEJ2000 "d:m:s"	RA_ICRS deg	e_ mas	DE_ICRS deg	e_ mas	Source	Plx mas	pmRA mas/yr	pmDE mas/yr	RADEcor	Dup	<FG> e-/s	e_ e-/s	<Gmag> mag	Var
1	28.910	10 51 47.499782235	+08 50 05.99440164	162.9479157593	26.669	+08.8349984449	37.610	3866225896528857728				-0.997	0	1.2602e+02	3.1571e+00	20.274	NOT_AVAILABLE

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