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	0.507	16 26 16.09536	+20 47 16.6632	1050-07939091	246.567064	+20.787962			18.9	19.0	1950.205
2	7.331	16 26 16.57008	+20 47 18.1608	1050-07939152	246.569042	+20.788378			19.4	18.6	1955.385

%0a%0a%3cP%3e%0a%3cFONT%20SIZE=%27-1%27%3e%3cEM%3e%3cFONT%20COLOR=%27#0000FF%27>%3cB%3eNote:%20%3cB%3e%3cFONT%20COLOR=%27#CD5B45%27>%20The%20current%20version%20includes%20only%20the%20North%20%28POSS-I%20plates%29%3cP%3e%0a

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 [****ClosingBrace(s)Inserted****]
">

Mflag

%22> 1 0.43716 26 16.07088+20 47 16.9620EO1438-0353482246.566962+20.78804518.85  -1 -0.27 5.2 0.0418.37   2 9.49 14.2 -0.49   2 8.12816 26 16.60800+20 47 19.2012EO1438-0353443246.569200+20.78866719.25  -1 0.89 4.8 0.0621.74L 0     2.49   %0a%0a%3cP%3e%0a%3cFONT%20SIZE=%27-1%27%3e%3cEM%3e%3cFONT%20COLOR=%27#0000FF%27>%3cB%3eNote:%20The%20%3cB%3eUSNO-B%20Catalog%20presents%20positions,%20proper%20motions,%20%0amagnitudes%20un%20blue,%20red%20and%20infrared,%20as%20well%20as%20star/galaxy%20estimators%0afor%201,045,175,762%20objects%20derived%20from%203,648,832,040%20separate%20observations.%0aThe%20data%20were%20taken%20from%20scans%20of%207,435%20Schmidt%20plates%0ataken%20from%20various%20sky%20surveys%20during%20the%20last%2050%20years.%3cBR%3e%0aUSNO-B1.0%20catalog%20was%20created%20by%20Dave%20Monet%20and%20collaborators%0aat%20http://www.nofs.navy.mil/data/fchpix/%20%3cBR%3e%0a%3cB%3e%3cFONT%20COLOR=%27#EE0000%27>%20Note%20that%20the%20star/galaxy%20estimators%20may%20be%20mixed%20up%0a%20in%20dense%20regions.%0a%3cP%3e%0a

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	0.188	16 26 16.05288	+20 47 16.7100	1107-0256950	246.566887	+20.787975	77	88	1977.7	0	0	5	19.84	19.17	19.58	19.18	18.97
2	7.440	16 26 16.57488	+20 47 18.3516	1107-0256952	246.569062	+20.788431	176	79	1978.8	0	0	5	19.76	18.99	20.09	19.12	18.88
3	9.827	16 26 15.45144	+20 47 11.6808	1107-0256948	246.564381	+20.786578	595	725	1984.6	-150	-304	4		19.87	21.21	19.85	18.58

%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_	[****ClosingBrace(s)Inserted****]
">

&%">\BegDIVclass='sort-down ' </A>decVmag
magr_

Rmag
mag

r_

Jmag
mag

Hmag
mag

Kmag
mag

R

1 0.18916 26 16.052664+20 47 16.710001107-0261474Y.246.5668861+20.7879750B 0.0 0.0 0.0 0.018.160Y    19.180B         2 7.43716 26 16.574664+20 47 18.350161107-0261476Y.246.5690611+20.7884306B 0.0 0.0 0.0 0.018.350Y    19.120B         3 9.82916 26 15.451344+20 47 11.680081107-0261472..246.5643806+20.7865778B -150.0 26.0 -304.0 31.021.210B    19.850B         %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	0.264	16 26 16.07808	+20 47 16.6272	N3R9007828	246.566992	+20.787952	1991.434	19.06	19.77	19.36		3	2.59	0.16
2	7.632	16 26 16.59264	+20 47 18.1248	N3R9007834	246.569136	+20.788368	1991.434	19.01	20.15	19.22	19.01	3	2.90	0.22
3	8.214	16 26 15.52728	+20 47 13.1388	N3R9007813	246.564697	+20.786983	1991.434	19.84	22.03		18.91	3	3.04	0.49

%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	[****ClosingBrace(s)Inserted****]
">

mag&%">\BegDIVclass='sort-down ' </A>decNo

fl

1 0.18516 26 16.04736+20 47 16.6020246.566864+20.787945 -4.2 -3.6    19.8419.5819.1719.1818.97 5 0 2 7.25816 26 16.56528+20 47 18.1284246.569022+20.788369 -3.3 -8.5    19.7620.0918.9919.1218.88 5 0 %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	0.094	16 26 16.06539	+20 47 16.6094	246.566939	+20.787947	0.007	0.006	19.765	0.300	19.061	0.300	19.377	0.083	18.826	0.112	2003.4700	2003.4700	-4.2	5.0	-3.6	5.0
2	7.023	16 26 16.54804	+20 47 18.1325	246.568950	+20.788370	0.006	0.006	20.151	0.300	19.010	0.300	19.561	0.083	18.908	0.112	2003.4700	2003.4700	-3.3	5.3	-8.5	5.3
3	7.713	16 26 15.53576	+20 47 14.2229	246.564732	+20.787284	0.037	0.042	22.025	0.300	19.840	0.300	20.015	0.106	18.682	0.130	2003.4700	2003.4700	-159.6	6.7	-305.0	6.7
4	9.728	16 26 16.74448	+20 47 18.1359	246.569769	+20.788371	0.024	0.022	23.387	0.234	21.587	0.205	20.918	0.149	19.311	0.167	2003.4700	2003.4700	0.0	0.0	0.0

%0a%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 [****ClosingBrace(s)Inserted****]
">

DEICRS

%20

%22>%5cFONT SIZE=-1dege_
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 0.45516 26 16.079922+20 47 16.91196246.5669997 152.00+20.7880311 255.0054021+00078280 2.8 5.1 11.6 8.6 539.033 19.061 19.765   19.357       2 7.48316 26 16.583405+20 47 18.01210246.5690975 334.00+20.7883367 228.0054021+00078344 -2.3 11.3 -8.5 7.7 539.033 19.010 20.151 19.011 19.219       %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	0.081	16 26 16.064954900	+20 47 16.50834370	246.5669373121	0.597	+20.7879189844	0.556	1297403551609529216				0.525	0	3.3063e+02	2.9521e+00	19.226	NOT_AVAILABLE
2	6.954	16 26 16.545488108	+20 47 17.97361089	246.5689395338	0.689	+20.7883260030	0.610	1297403551609529856				0.535	0	2.6873e+02	2.0229e+00	19.451	NOT_AVAILABLE

%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	ipix	comp	pmRA mas/yr	pmDE mas/yr	Jmag mag	Hmag mag	Kmag [****ClosingBrace(s)Inserted****]
">

Kmag

%20

%22>%5cFONT SIZE=-1magB1mag
mag

B2mag
mag

R1mag
mag

R2mag
mag

Imag
mag

GaiaId

Gmag
mag

Clone

Nosc

1 0.04216 26 16.062616560+20 47 16.57427136246.5669275690+20.78793729765306945305162407527   2.186 -4.395      19.8419.5819.1719.1818.97129740355160952921619.226     2 7.10316 26 16.554246480+20 47 18.11028804246.5689760270+20.78836396895306945306192650183   -8.188 -9.112      19.7620.0918.9919.1218.88129740355160952985619.451     %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	pmRA mas/yr	e_ (...)	pmDE mas/yr	e_ (...)	Dup	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	RV km/s	e_ km/s	Teff K	AG mag	E(BP-RP) mag	Rad solRad	[****ClosingBrace(s)Inserted****]
solRad
">
	\BegDIVclass='sort-down '
</A>
decLum solLum
1	0.081	16 26 16.0646449988	+20 47 16.512271320	246.56693745343	0.2363	+20.78791916044	0.2024	1297403551609529216	-0.2844	0.3644	0.311	0.469	-0.212	0.462	0	3.5766e+02	1.3755e+00	19.3047	0.0042	2.3034e+02	7.8498e+00	19.4455	0.0370	2.3679e+02	6.3573e+00	18.8260	0.0291	0.6195
2	6.951	16 26 16.5494107619	+20 47 18.025709923	246.56893880182	0.2838	+20.78832567728	0.2655	1297403551609529856	0.5914	0.4567	-3.708	0.559	-3.437	0.602	1	2.7697e+02	9.3459e-01	19.5823	0.0037	1.8071e+02	1.1344e+01	19.7089	0.0682	1.9443e+02	5.8014e+00	19.0400	0.0324	0.6689
3	9.661	16 26 16.7419252455	+20 47 17.929416495	246.56975802186	2.3446	+20.78831372680	2.3513	1297403551610639488							0	7.0572e+01	1.5296e+00	21.0668	0.0235

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