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	1.913	12 29 12.08088	+33 36 29.5812	1200-06904166	187.300337	+33.608217			19.5	18.5	1950.364

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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	1.655	12 29 12.09552	+33 36 29.3724	EO0105-0314707	187.300398	+33.608159	18.82		-1	0.89	7.9	0.24	20.96		-1	-1.39	5.5	2.14
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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	2.052	12 29 12.09744	+33 36 29.7900	1236-0214235	187.300406	+33.608275	60	135	1977.4	6	10	5	19.40	20.42	19.32	19.66	18.61

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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_ [****ClosingBrace(s)Inserted****]
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r_

%22>Jmag
magHmag
magKmag
magR

1 2.05312 29 12.097344+33 36 29.790001236-0217821..187.3004056+33.6082750B 6.0 2.0 10.0 4.019.320B    19.660B         %0a%0a%3cP%3e%0a%3cFONT%20SIZE=%27-1%27%3e%3cEM%3e%3cFONT%20COLOR=%27#0000FF%27>%3cB%3eNote:%20This%20version%20of%20the%20%0a%3cB%3eGSC-II%0ahas%20no%20proper%20motions,%20but%20the%20limits%20on%20brightness%20which%20existed%20on%0a%20%28F<18.5,%20B_j<19.5%29%20were%20removed.%0a%25The%20data%20are%20%3cB%3e%3cFONT%20COLOR=%27#0000CD%27>copyrighted,%20check%0a%25the%20%3cB%3edata%20use%20Policy.%0a%3cP%3e%0a

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	1.835	12 29 12.10104	+33 36 29.5776	N5BC000456	187.300421	+33.608216	1991.185	18.88	19.81	19.42	18.53	0	2.62	0.25

%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	1.863	12 29 12.08544	+33 36 29.5488	187.300356	+33.608208	8.0	-3.8			19.40	19.32	20.42	19.66	18.61	5	0
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%3cEM%3e1&%3cFONT%20COLOR=%27#CD5B45%27>%201.863&%3cFONT%20COLOR=%27#CD5B45%27>12%2029%2012.08544&%3cFONT%20COLOR=%27#CD5B45%27>%2b33%2036%2029.5488&187.300356&%2b33.608208&%20%20%20%20%208.0&%20%20%20%20-3.8&%20&%20&19.40&19.32&20.42&19.66&18.61&%205&%200%3cBR%3e">\EndTABLESORT

Note:

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	1.873	12 29 12.10161	+33 36 29.6181	187.300423	+33.608227	0.016	0.015	19.807	0.300	18.878	0.300	19.076	0.084	18.160	0.113	2004.3100	2004.3100	8.0	5.9	-3.8	5.9

%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 [****ClosingBrace(s)Inserted****]
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pmDE

%20

%22>%5cFONT SIZE=-1mas/yre_
(...)

Nobs

Dt
yr

Rmag
mag

Bmag
mag

Nmag
mag

Vmag
mag

Jmag
mag

Hmag
mag

Kmag
mag

1 2.05112 29 12.100983+33 36 29.79900187.3004208 124.00+33.6082775 123.0056040+00004560 2.1 4.2 2.8 4.1 845.016 18.878 19.807 18.531 19.416       %0a%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	e_ mas	PM mas/yr	pmRA mas/yr	e_ (...)	pmDE mas/yr	e_ (...)	RUWE	FG e-/s	e_ e-/s	Gmag mag	e_ mag	FBP e-/s	e_ e-/s	BPmag mag	e_ mag	FRP e-/s	e_ e-/s	RPmag mag	e_ mag	BP-RP mag	RVDR2 km/s	e_ km/s	Tefftemp K	loggtemp [****ClosingBrace(s)Inserted****]
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