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	0.696	13 47 54.76944	+12 57 13.9608	0975-07292790	206.978206	+12.953878			20.1	18.7	1954.246

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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	0.898	13 47 54.74544	+12 57 13.9824	EO1079-0050387	206.978106	+12.953884	18.94		1	7.67	10.1	0.62	22.18		-1	-1.03	3.1	3.25
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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	0.729	13 47 54.75720	+12 57 13.9032	N12111324626	206.978155	+12.953862	1994.357	18.42	0.44			3	4.82	0.55

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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	0.483	13 47 54.76272	+12 57 13.6512	1029-0264696	206.978178	+12.953792	235	102	1977.2	0	0	5	21.38	19.44	20.62	18.50	18.26
2	1.378	13 47 54.84144	+12 57 12.1932	1029-0264698	206.978506	+12.953387	146	139	1974.1	0	0	2		20.08	20.57
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%3cEM%3e2&%3cFONT%20COLOR=%27#CD5B45%27>%201.378&%3cFONT%20COLOR=%27#CD5B45%27>13%2047%2054.84144&%3cFONT%20COLOR=%27#CD5B45%27>%2b12%2057%2012.1932&1029-0264698&206.978506&%2b12.953387&146&139&1974.1&%20%20%20%20%200&%20%20%20%20%200&2&%20&20.08&20.57&%20&%20%3cBR%3e">\Ahref='VizieR-5?-ref=VIZ6642f973119c8e&-out.add=.&-source=I/284/out&USNO-B1.0===1029-0264697&-out.orig=o' class='full'3 1.96913 47 54.80616+12 57 11.36161029-0264697206.978359+12.9531569999991981.8 128 -3123  19.8921.24  15.42 %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	0.483	13 47 54.762672	+12 57 13.65012	1029-0267771	.M	206.9781778	+12.9537917	B	0.0	0.0	0.0	0.0	20.620	B			18.500	B	16.615	15.582	15.125
2	1.380	13 47 54.841344	+12 57 12.18996	1029-0267773	..	206.9785056	+12.9533861	B	0.0	0.0	0.0	0.0	20.570	B			20.080	e
3	1.970	13 47 54.805992	+12 57 11.36016	1029-0267772	..	206.9783583	+12.9531556	B	128.0	98.0	-312.0	92.0	21.240	B			19.890	e

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Full	_r arcsec	_RAJ2000 "h:m:s"	_DEJ2000 "d:m:s"	GSC2.3 [****ClosingBrace(s)Inserted****]
">

GSC2.3

%22>RAJ2000
degDEJ2000
degEpoch
yrFmag
magjmag
magVmag
magNmag
magClass

a
pixe

1 0.73013 47 54.75744+12 57 13.9068N50E004626206.978156+12.9538631994.35718.4221.5019.01  3 4.82 0.55 %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	0.678	13 47 54.77136	+12 57 12.6648	206.978214	+12.953518	5.9	-26.1	16.616	15.126	21.38	20.62	19.44	18.50	18.26	6	1
2	0.978	13 47 54.78024	+12 57 12.3336	206.978251	+12.953426	-25.0	-1.9	16.616	15.126		20.57	20.08			3	0
3	1.298	13 47 54.76248	+12 57 12.0564	206.978177	+12.953349	113.6	-302.2	16.616	15.126		21.24	19.89		15.42	4	1

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Full	_r arcsec	_RAJ2000 "h:m:s"	_DEJ2000 "d:m:s"	RAJ2000 deg	DEJ2000 deg	e_RAJ2000 (...)	e_DEJ2000 arcsec	magBJ mag	e_ mag	[****ClosingBrace(s)Inserted****]
">

mag&%">\BegDIVclass='sort-down ' </A>decmagRF
mage_
magmagG
mage_
magmagGrvs
mage_
magalphaEpoch
yrdeltaEpoch
yrpmRA
mas/yre_
(...)pmDE
mas/yre_
(...) 1 0.53413 47 54.75889+12 57 13.6661206.978162+12.953796 0.039 0.02821.499 0.30018.422 0.30018.760 0.08817.473 0.1162004.07002004.0700 5.9 4.4 -26.1 4.5 2 0.97813 47 54.78029+12 57 12.3340206.978251+12.953426 0.096 0.09620.570 0.40020.080 0.40020.195 0.40019.739 0.5001989.85001989.8500 -25.0 5.8 -1.9 5.8 3 1.29913 47 54.76244+12 57 12.0560206.978177+12.953349 0.096 0.09621.240 0.40019.890 0.40020.131 0.40019.063 0.5001990.94001990.9400 113.6 5.8 -302.2 5.8 %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	0.379	13 47 54.811621	+12 57 13.36787	206.9783818	1088.00	+12.9537133	716.00	55646+0004626	4	28.1	43.5	-0.1	28.6	4	40.110	18.422	21.499		19.008	16.616	15.582	15.126

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