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	2.384	12 54 04.12800	+13 32 45.6216	0975-07061500	193.517200	+13.546006			18.9	17.7	1950.129

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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	3.206	12 54 04.15344	+13 32 44.8620	EO0041-0020622	193.517306	+13.545795	18.58		1	9.32	9.0	0.28	19.95		2	18.73	10.2	1.37
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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	2.823	12 54 04.10880	+13 32 45.1464	N1233031684	193.517120	+13.545874	1991.283	18.30	0.44	19.02	0.41	3	4.96	0.35

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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	1.631	12 54 04.02936	+13 32 46.6800	1035-0205659	193.516789	+13.546300	693	741	1982.7	0	0	4		18.93	20.71	18.15	18.76
2	3.290	12 54 04.11288	+13 32 44.6820	1035-0205660	193.517137	+13.545745	170	172	1976.2	0	-18	5	19.30	17.66	18.08	18.16	17.96
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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	1.632	12 54 04.029336	+13 32 46.68000	1035-0209514	..	193.5167889	+13.5463000	B	0.0	0.0	0.0	0.0	20.710	B			18.150	B
2	3.292	12 54 04.112664	+13 32 44.67984	1035-0209515	..	193.5171361	+13.5457444	B	0.0	5.0	-18.0	5.0	18.080	B			18.160	B
3	5.395	12 54 04.142664	+13 32 42.60984	1035-0209516	..	193.5172611	+13.5451694	B	0.0	0.0	0.0	0.0	20.390	B			19.090	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 2.49712 54 04.10496+13 32 45.4704N5HP000684193.517104+13.5459641991.13518.5319.0218.7918.733 4.53 0.35 %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	1.878	12 54 03.98112	+13 32 47.1840	193.516588	+13.546440	-16.6	6.4				20.71	18.93	18.15	18.76	4	1
2	3.363	12 54 04.10016	+13 32 44.6028	193.517084	+13.545723	-6.8	-21.9			19.30	18.08	17.66	18.16	17.96	5	0
3	4.162	12 54 04.12728	+13 32 43.8252	193.517197	+13.545507	-5.2	21.9			21.17	20.39	19.09		18.55	4	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_ [****ClosingBrace(s)Inserted****]
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e_

%20

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

e_
mag

magG
mag

e_
mag

magGrvs
mag

e_
mag

alphaEpoch
yr

deltaEpoch
yr

pmRA
mas/yr

e_
(...)

pmDE
mas/yr

e_
(...)

1 1.87812 54 03.98117+13 32 47.1840193.516588+13.546440 0.115 0.13320.710 0.40018.150 0.40018.148 0.40016.396 0.5001982.70001982.7000 -16.6 6.0 6.4 6.1 2 3.10512 54 04.14156+13 32 44.9250193.517256+13.545812 0.076 0.05919.015 0.30018.530 0.30018.522 0.08617.712 0.1152003.24002003.2400 -6.8 4.8 -21.9 4.8 3 4.16212 54 04.12725+13 32 43.8250193.517197+13.545507 0.115 0.11520.390 0.40019.090 0.40019.328 0.40018.295 0.5001973.68001973.6800 -5.2 4.9 21.9 4.9 %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	3.128	12 54 04.109001	+13 32 44.84106	193.5171208	69.00	+13.5457892	111.00	56269+0000684	4	-9.2	2.3	-9.7	3.8	6	45.104	18.530	19.015	18.725	18.790

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