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	0.943	12 59 13.82352	+15 49 54.3432	1050-06819148	194.807598	+15.831762			19.3	18.7	1956.201

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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	0.493	12 59 13.79352	+15 49 54.2100	EO1572-0145057	194.807473	+15.831725	18.57		2	9.68	16.1	0.64	20.88		1	5.07	7.9	2.31
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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	0.541	12 59 13.79976	+15 49 54.0948	N12333113132	194.807499	+15.831693	1991.135	18.46	0.36	19.40	0.34	3	4.70	0.50

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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	0.714	12 59 13.80672	+15 49 54.3216	1058-0218848	194.807528	+15.831756	176	129	1978.6	0	0	5	20.24	19.20	19.37	18.41	18.12
2	4.769	12 59 13.46544	+15 49 51.9132	1058-0218846	194.806106	+15.831087	999	854	1995.1	0	0	2				20.65	18.32
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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	0.712	12 59 13.806672	+15 49 54.32016	1058-0222671	..	194.8075278	+15.8317556	B	0.0	0.0	0.0	0.0	19.370	B			18.410	B
2	4.772	12 59 13.465344	+15 49 51.90996	1058-0222669	..	194.8061056	+15.8310861	B	0.0	0.0	0.0	0.0					20.650	B
3	5.281	12 59 14.027328	+15 49 57.64008	1058-0222672	..	194.8084472	+15.8326778	B	0.0	0.0	0.0	0.0	20.650	B			19.590	e

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

%22>RAJ2000
degDEJ2000
degEpoch
yrFmag
magjmag
magVmag
magNmag
magClass

a
pixe

1 0.54512 59 13.80000+15 49 54.0948N5IT003132194.807500+15.8316931991.13518.4619.4018.9818.273 4.70 0.50 %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	0.428	12 59 13.78776	+15 49 54.2244	194.807449	+15.831729	-4.3	-6.5			20.24	19.37	19.20	18.41	18.12	5	0
2	4.785	12 59 14.01648	+15 49 57.0720	194.808402	+15.832520	-1.4	-43.8				20.65	19.59			2	0

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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	magRF mag	e_ mag	magG [****ClosingBrace(s)Inserted****]
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magG

%20

%22>%5cFONT SIZE=-1mage_
mag

magGrvs
mag

e_
mag

alphaEpoch
yr

deltaEpoch
yr

pmRA
mas/yr

e_
(...)

pmDE
mas/yr

e_
(...)

1 0.80712 59 13.81760+15 49 54.1641194.807573+15.831712 0.060 0.03219.401 0.30018.458 0.30018.665 0.08517.635 0.1142003.40002003.4000 -4.3 5.5 -6.5 5.5 2 4.78412 59 14.01644+15 49 57.0720194.808402+15.832520 0.163 0.16320.650 0.40019.590 0.40019.809 0.40018.938 0.5001973.26001973.2600 -1.4 9.5 -43.8 9.5 %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	0.439	12 59 13.793335	+15 49 53.96582	194.8074722	440.00	+15.8316572	349.00	56309+0003132	4	-13.7	13.9	-5.6	11.0	4	34.932	18.458	19.401	18.266	18.982

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