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	20.467	21 43 16.94352	+73 41 07.2708	1575-04770061	325.820598	+73.685353			19.0	17.4	1953.524
2	27.230	21 43 27.94008	+73 41 18.6000	1575-04771107	325.866417	+73.688500			19.2	18.3	1953.524

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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	2.565	21 43 22.19544	+73 41 13.3404	EO0772-0135177	325.842481	+73.687039	20.00	L	0				21.10		-1	2.57	3.1	1.10
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%3cEM%3e1&%3cFONT%20COLOR=%27#CD5B45%27>%202.565&%3cFONT%20COLOR=%27#CD5B45%27>21%2043%2022.19544&%3cFONT%20COLOR=%27#CD5B45%27>%2b73%2041%2013.3404&EO0772-0135177&325.842481&%2b73.687039&20.00&L&%200&%20&%20&%20&21.10&%20&-1&%20%20%202.57&%20%20%203.1&%20%201.10&%20%3cBR%3e">\Ahref='VizieR-5?-ref=VIZ6635e4a13ef13c&-out.add=.&-source=I/267/out&APM-ID===EO0772-0135017&-out.orig=o' class='full'215.34821 43 18.73944+73 41 21.2316EO0772-0135017325.828081+73.68923119.21  -1 0.32 4.8 0.0921.12  -1 0.37 2.8 1.92   320.56921 43 16.94352+73 41 06.8532EO0772-0135316325.820598+73.68523717.59  -1 0.79 7.1 0.1618.86  -1 -0.03 6.1 1.27   427.03221 43 27.90600+73 41 18.3516EO0772-0135057325.866275+73.68843118.20  -1 -0.33 5.9 0.0419.27   1 2.56 6.2 1.07   %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	20.507	21 43 16.94352	+73 41 07.1052	N01022019268	325.820598	+73.685307	1992.722	17.50	0.27	19.17	0.42	3	2.77	0.08
2	26.858	21 43 27.85248	+73 41 18.5424	N01022019301	325.866052	+73.688484	1992.722	17.91	0.28			3	2.76	0.08

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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	2.959	21 43 22.35144	+73 41 12.7032	1636-0116159	325.843131	+73.686862	796	999	1953.5	0	0	2	21.30	19.56
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%3cEM%3e1&%3cFONT%20COLOR=%27#CD5B45%27>%202.959&%3cFONT%20COLOR=%27#CD5B45%27>21%2043%2022.35144&%3cFONT%20COLOR=%27#CD5B45%27>%2b73%2041%2012.7032&1636-0116159&325.843131&%2b73.686862&796&999&1953.5&%20%20%20%20%200&%20%20%20%20%200&2&21.30&19.56&%20&%20&%20%3cBR%3e">\Ahref='VizieR-5?-ref=VIZ6635e4a13ef13c&-out.add=.&-source=I/284/out&USNO-B1.0===1636-0116152&-out.orig=o' class='full'215.64821 43 18.71088+73 41 21.57001636-0116152325.827962+73.6893251091011984.0 0 04  19.1220.9919.2918.10 320.63321 43 16.90008+73 41 07.32121636-0116149325.820417+73.685367106 621977.9 0 0519.8517.3818.7317.4416.63 426.91121 43 27.85488+73 41 18.72241636-0116166325.866062+73.688534110 701977.9 0 0520.2518.3719.6717.7717.38 %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	2.957	21 43 22.351344	+73 41 12.69996	1636-0117595	..	325.8431306	+73.6868611	B	0.0	0.0	0.0	0.0	21.300	o			19.560	e
2	15.649	21 43 18.710664	+73 41 21.57000	1636-0117588	.M	325.8279611	+73.6893250	B	0.0	0.0	0.0	0.0	20.990	B			19.290	B	16.849	15.560	15.335
3	20.634	21 43 16.900008	+73 41 07.32012	1636-0117585	YM	325.8204167	+73.6853667	B	0.0	0.0	0.0	0.0	18.350	Y	17.890	Y	17.440	B	15.840	15.272	15.128
4	26.910	21 43 27.854664	+73 41 18.71988	1636-0117604	YM	325.8660611	+73.6885333	B	0.0	0.0	0.0	0.0	19.670	B	17.970	Y	17.770	B	16.385	15.887	15.425

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Full	_r arcsec	_RAJ2000 [****ClosingBrace(s)Inserted****]
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%3cEM%3e%20%3cFONT%20COLOR=%27#CD5B45%27>_RAJ2000

%22>%5cFONT SIZE=-1"h:m:s" _DEJ2000
"d:m:s"GSC2.3

RAJ2000
degDEJ2000
degEpoch
yrFmag
magjmag
magVmag
magNmag
magClass

a
pixe

115.49421 43 18.73656+73 41 21.4584N0WX009316325.828069+73.6892941992.72219.0221.5419.0617.993 2.26 0.18 220.50521 43 16.94376+73 41 07.1088N0WX009268325.820599+73.6853081992.72217.5019.1718.1716.760 2.77 0.08 326.85921 43 27.85272+73 41 18.5460N0WX009301325.866053+73.6884851992.72217.9119.8018.7517.453 2.76 0.08 %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	15.709	21 43 18.68184	+73 41 21.5088	325.827841	+73.689308	0.6	3.9	16.849	15.335		20.99	19.12	19.29	18.10	5	0
2	20.618	21 43 16.90536	+73 41 07.2924	325.820439	+73.685359	2.7	3.8	15.841	15.128	19.85	18.73	17.38	17.44	16.63	6	0
3	26.869	21 43 27.83568	+73 41 18.8664	325.865982	+73.688574	-1.1	9.3	16.386	15.425	20.25	19.67	18.37	17.77	17.38	6	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	[****ClosingBrace(s)Inserted****]
">

mas/yr&%">\BegDIVclass='sort-down ' </A>decFmag
magBjmag
magVmag
magNmag
magJmag
mage_
magHmag
mage_
magKmag
mage_
mag2Mkey

Bmag
magRmag
magFld

dT
yrfg

fs

M

120.56421 43 16.91448+73 41 07.3645XPM 327-0170722325.820477+73.685379 1.23 0.25 1.68 0.5917.49919.17218.17416.76315.841 0.07415.272 0.11115.128 0.131 99478426019.017.4 4847.33225600M 226.94821 43 27.83976+73 41 19.1113XPM 327-0170751325.865999+73.688642 -4.85 8.76 -4.40 9.1017.91319.80218.74617.45216.386 0.11715.887 0.20115.425 0.168 99478424919.218.3 4847.33225600M %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	15.464	21 43 18.74107	+73 41 21.4326	325.828088	+73.689287	0.012	0.012	21.541	0.300	19.022	0.300	19.151	0.094	17.413	0.120	2003.7300	2003.7300	0.6	5.6	3.9	5.6
2	20.572	21 43 16.92152	+73 41 07.2066	325.820506	+73.685335	0.004	0.004	19.172	0.300	17.499	0.300	17.726	0.081	16.463	0.111	2003.7300	2003.7300	2.7	4.1	3.8	4.1
3	26.921	21 43 27.85778	+73 41 18.7143	325.866074	+73.688532	0.005	0.005	19.802	0.300	17.913	0.300	18.256	0.081	16.957	0.111	2003.7300	2003.7300	-1.1	4.4	9.3	4.4

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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

115.33121 43 18.642743+73 41 21.54403819-106237325.8282520+73.68928672013.00919.452 0.162 44.6 -8.616.84915.56015.335           220.54921 43 16.914009+73 41 07.37740819-106234325.8205400+73.68532392013.12917.504 0.018 5.0 -16.115.84115.27215.128           326.92321 43 27.838045+73 41 19.14658819-106252325.8660781+73.68852922013.21818.000 0.050 6.6 -33.416.38615.88715.425           %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	15.368	21 43 18.760879482	+73 41 21.38377720	325.8281703312	0.993	+73.6892732714	0.618	2273936521805932416				0.498	0	3.6519e+02	2.7129e+00	19.118	NOT_AVAILABLE
2	20.550	21 43 16.928978058	+73 41 07.17343334	325.8205374086	0.289	+73.6853259537	0.285	2273936521805929472				0.538	0	1.4186e+03	3.0252e+00	17.645	NOT_AVAILABLE
3	26.910	21 43 27.855185786	+73 41 18.71155313	325.8660632741	0.446	+73.6885309870	0.453	2273936831043576832				0.416	0	8.6453e+02	4.5508e+00	18.183	NOT_AVAILABLE

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