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	2.448	10 50 02.94744	+11 11 35.9916	0975-06582868	162.512281	+11.193331			18.5	17.6	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	2.835	10 50 02.94936	+11 11 35.3112	EO0976-0118179	162.512289	+11.193142	17.68		1	4.41	9.9	0.10	19.82		1	6.97	9.9	2.14
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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	3.034	10 50 02.98416	+11 11 35.7648	N20311101917	162.512434	+11.193268	1993.220	17.15	0.42	18.11	0.42	3	5.20	0.27

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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	2.812	10 50 02.97480	+11 11 36.0024	1011-0189914	162.512395	+11.193334	181	150	1977.2	0	0	2	18.78				16.88
2	3.298	10 50 02.72352	+11 11 33.9504	1011-0189913	162.511348	+11.192764	490	214	1981.5	-20	24	3		19.42	20.40	19.37
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%3cEM%3e2&%3cFONT%20COLOR=%27#CD5B45%27>%203.298&%3cFONT%20COLOR=%27#CD5B45%27>10%2050%2002.72352&%3cFONT%20COLOR=%27#CD5B45%27>%2b11%2011%2033.9504&1011-0189913&162.511348&%2b11.192764&490&214&1981.5&%20%20%20-20&%20%20%20%2024&3&%20&19.42&20.40&19.37&%20%3cBR%3e">\Ahref='VizieR-5?-ref=VIZ6638a1d82193bc&-out.add=.&-source=I/284/out&USNO-B1.0===1011-0189915&-out.orig=o' class='full'3 3.42610 50 02.97744+11 11 34.88281011-0189915162.512406+11.1930234387491973.6 0 0419.6717.5117.9216.92   4 4.88610 50 03.12480+11 11 37.91041011-0189916162.513020+11.1938649999991977.2 0 02  19.28    17.83 5 5.69410 50 03.14736+11 11 34.62001011-0189917162.513114+11.1929507573671983.8 0 0319.72  20.21  18.16 %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	2.811	10 50 02.974656	+11 11 35.99988	1011-0193562	..	162.5123944	+11.1933333	B	0.0	0.0	0.0	0.0	18.780	o
2	3.299	10 50 02.723328	+11 11 33.95004	1011-0193561	..	162.5113472	+11.1927639	B	-20.0	18.0	24.0	7.0	20.400	B			19.370	B
3	3.427	10 50 02.977344	+11 11 34.87992	1011-0193563	..	162.5124056	+11.1930222	B	0.0	0.0	0.0	0.0	17.920	B			16.920	B
4	4.884	10 50 03.124656	+11 11 37.91004	1011-0193564	Y.	162.5130194	+11.1938639	B	0.0	0.0	0.0	0.0	18.350	Y			19.280	e
5	5.694	10 50 03.147336	+11 11 34.62000	1011-0193565	..	162.5131139	+11.1929500	B	0.0	0.0	0.0	0.0	20.210	B

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%22> _r
arcsec _RAJ2000
"h:m:s" _DEJ2000
"d:m:s"GSC2.3

RAJ2000
degDEJ2000
degEpoch
yrFmag
magjmag
magVmag
magNmag
magClass

a
pixe

1 3.03510 50 02.98440+11 11 35.7684N6Z8001917162.512435+11.1932691993.22017.1518.1118.3517.383 5.20 0.27 %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	2.154	10 50 02.93376	+11 11 37.8600	162.512224	+11.193850	-68.9	-32.6					19.28		17.83	2	0
2	2.878	10 50 02.97792	+11 11 35.9412	162.512408	+11.193317	-2.1	-10.2			18.78				16.88	2	0
3	2.894	10 50 02.96832	+11 11 35.6208	162.512368	+11.193228	-2.9	6.3			19.67	17.92	17.51	16.92		4	0
4	3.477	10 50 02.70624	+11 11 33.8568	162.511276	+11.192738	-32.6	16.6				20.40	19.42	19.37		3	0
5	5.739	10 50 03.15096	+11 11 34.6272	162.513129	+11.192952	14.7	-10.8			19.72	20.21			18.16	3	0

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Full	_r arcsec	_RAJ2000 "h:m:s"	_DEJ2000 "d:m:s"	RAJ2000 deg	DEJ2000 deg	e_RAJ2000 [****ClosingBrace(s)Inserted****]
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e_RAJ2000

%20

%22>%5cFONT SIZE=-1(...)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 2.89410 50 02.96837+11 11 35.6213162.512368+11.193228 0.115 0.11517.920 0.40016.920 0.40017.131 0.40016.304 0.5001973.61001973.6100 -2.9 5.9 6.3 5.9 2 3.08210 50 02.98880+11 11 35.7981162.512453+11.193277 0.044 0.03218.110 0.30017.152 0.30018.014 0.08216.936 0.1122002.95002002.9500 -2.1 7.0 -10.2 7.0 3 4.40210 50 02.66665+11 11 33.1051162.511111+11.192529 0.042 0.05020.400 0.40019.370 0.40020.634 0.12219.610 0.1432002.95002002.9500 -32.6 6.8 16.6 6.8 %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	2.937	10 50 02.987051	+11 11 36.12808	162.5124460	44.00	+11.1933689	43.00	58196+0001917	4	3.2	2.1	3.4	2.1	6	43.084	17.152	18.110	17.379	18.350

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