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	0.619	12 21 38.84208	+09 24 27.7416	0975-06945393	185.411842	+09.407706			19.8	18.6	1956.190
2	9.254	12 21 38.29680	+09 24 30.8232	0975-06945362	185.409570	+09.408562			19.0	18.4	1956.190

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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	0.951	12 21 38.93952	+09 24 28.0116	EO1563-0088000	185.412248	+09.407781	19.75		2	2.15	4.9	0.43	21.29		-1	-0.07	5.0	1.54
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%3cEM%3e1&%3cFONT%20COLOR=%27#CD5B45%27>%200.951&%3cFONT%20COLOR=%27#CD5B45%27>12%2021%2038.93952&%3cFONT%20COLOR=%27#CD5B45%27>%2b09%2024%2028.0116&EO1563-0088000&185.412248&%2b09.407781&19.75&%20&%202&%20%20%202.15&%20%20%204.9&%200.43&21.29&%20&-1&%20%20-0.07&%20%20%205.0&%20%201.54&%20%3cBR%3e">\Ahref='VizieR-5?-ref=VIZ664075b31182ef&-out.add=.&-source=I/267/out&APM-ID===EO1563-0087984&-out.orig=o' class='full'2 8.94812 21 38.32608+09 24 31.0824EO1563-0087984185.409692+09.40863418.45  -1 0.41 7.7 0.1521.69   1 2.17 5.4 3.25   %0a%0a%3cP%3e%0a%3cFONT%20SIZE=%27-1%27%3e%3cEM%3e%3cFONT%20COLOR=%27#0000FF%27>%3cB%3eNote:%20The%20construction%20of%20the%20%0a%3cB%3eGSC-II%20%0ais%20still%20in%20progress:%20this%0aversion%20has%20no%20proper%20motions,%20and%20the%20magnitude%20limits%20are%2018.5%20in%20F%20%28red%29%0aand%2019.5%20in%20J%20%28blue%29.%20The%20data%20are%20%3cB%3e%3cFONT%20COLOR=%27#0000CD%27>copyrighted,%20check%20%0athe%20%3cB%3edata%20use%20Policy.%0a%3cP%3e%0a

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	9.534	12 21 38.26752	+09 24 30.4236	N12031222441	185.409448	+09.408451	1991.269	18.12	0.43			0	2.99	0.24

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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	0.958	12 21 38.81880	+09 24 27.7524	0994-0215592	185.411745	+09.407709	273	45	1973.5	0	0	4	19.50	19.59	20.22	20.13
2	7.972	12 21 38.47272	+09 24 32.7528	0994-0215591	185.410303	+09.409098	863	999	1973.7	0	0	2	19.78			20.15
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%3cEM%3e2&%3cFONT%20COLOR=%27#CD5B45%27>%207.972&%3cFONT%20COLOR=%27#CD5B45%27>12%2021%2038.47272&%3cFONT%20COLOR=%27#CD5B45%27>%2b09%2024%2032.7528&0994-0215591&185.410303&%2b09.409098&863&999&1973.7&%20%20%20%20%200&%20%20%20%20%200&2&19.78&%20&%20&20.15&%20%3cBR%3e">\Ahref='VizieR-5?-ref=VIZ664075b31182ef&-out.add=.&-source=I/284/out&USNO-B1.0===0994-0215589&-out.orig=o' class='full'3 9.31712 21 38.29008+09 24 30.73320994-0215589185.409542+09.408537 96 591978.0 0 0519.3918.3419.6717.9717.47 %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	0.959	12 21 38.818656	+09 24 27.74988	0994-0219700	..	185.4117444	+09.4077083	B	0.0	0.0	0.0	0.0	20.220	B			20.130	B
2	7.971	12 21 38.472672	+09 24 32.74992	0994-0219699	..	185.4103028	+09.4090972	B	0.0	0.0	0.0	0.0	19.780	o			20.150	B
3	9.316	12 21 38.290008	+09 24 30.72996	0994-0219697	YM	185.4095417	+09.4085361	B	0.0	0.0	0.0	0.0	18.350	Y			17.970	B	16.440	16.251	15.676

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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 1.45012 21 38.78520+09 24 27.7560N4WQ002435185.411605+09.4077101991.26919.7520.29    0 2.16 0.39 2 9.53212 21 38.26776+09 24 30.4272N4WQ002441185.409449+09.4084521991.26918.1219.6818.5717.480 2.99 0.24 %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	1.314	12 21 38.79384	+09 24 27.6660	185.411641	+09.407685	-15.3	-3.1			19.50	20.22	19.59	20.13		4	0
2	9.412	12 21 38.27856	+09 24 30.5316	185.409494	+09.408481	-7.7	-6.1	16.440	15.676	19.39	19.67	18.34	17.97	17.47	6	0
3	9.859	12 21 38.48232	+09 24 35.4600	185.410343	+09.409850	15.0	60.9			19.78			20.15		2	0

%0a%0a

Full	_r arcsec	_RAJ2000 "h:m:s"	_DEJ2000 "d:m:s"	ID	RAICRS deg	DEICRS deg	pmRAp mas/yr	pmDEp mas/yr	pmRAx mas/yr	pmDEx mas/yr	Fmag mag	[****ClosingBrace(s)Inserted****]
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mag&%">\BegDIVclass='sort-down ' </A>decBjmag
magVmag
magNmag
magJmag
mage_
magHmag
mage_
magKmag
mage_
mag2Mkey

Bmag
magRmag
magFld

dT
yrfg

fs

M

1 9.54512 21 38.26750+09 24 30.4595XPM 198-0319124185.409448+09.408461 -7.01 -6.15 -7.28 -5.9218.12319.68018.56617.48316.440 0.13816.251 0.23815.676   86453279919.018.4 49644.01153600M %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"	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	1.202	12 21 38.80205	+09 24 27.7490	185.411675	+09.407708	0.024	0.026	20.289	0.300	19.750	0.300	20.610	0.101	20.110	0.126	2003.3100	2003.3100	-15.3	6.6	-3.1	6.6
2	8.762	12 21 38.56298	+09 24 34.9532	185.410679	+09.409709	0.065	0.054	19.780	0.400	20.150	0.400	20.580	0.186	19.049	0.200	2003.3100	2003.3100	15.0	9.3	60.9	9.3
3	9.500	12 21 38.27053	+09 24 30.4522	185.409461	+09.408459	0.004	0.004	19.680	0.300	18.123	0.300	18.247	0.081	17.041	0.111	2003.3100	2003.3100	-7.7	5.0	-6.1	5.0

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Full	_r arcsec	_RAJ2000 "h:m:s"	_DEJ2000 "d:m:s"	URAT1	RAICRS deg	DEICRS deg	Epoch yr	f.mag [****ClosingBrace(s)Inserted****]
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f.mag

%20

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

pmRA
mas/yr

pmDE
mas/yr

Jmag
mag

Hmag
mag

Kmag
mag

Bmag
mag

Vmag
mag

gmag
mag

rmag
mag

imag
mag

1 9.61612 21 38.268130+09 24 30.44965498-168105185.4094161+09.40842612013.45017.991 0.033 -9.1 -8.616.44016.25115.676           %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	pmRA mas/yr	pmDE mas/yr	RADEcor	Dup	<FG> e-/s	e_ e-/s	<Gmag> mag	Var
1	1.496	12 21 38.782667716	+09 24 27.81761068	185.4115944488	4.726	+09.4077271141	2.326	3902360074865352320				-0.958	0	1.7031e+02	2.9391e+00	19.947	NOT_AVAILABLE
2	9.621	12 21 38.259369269	+09 24 30.32478636	185.4094140386	1.799	+09.4084235518	0.874	3902360074865352960				-0.967	0	8.9929e+02	6.1388e+00	18.140	NOT_AVAILABLE

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