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	1.982	00 43 25.44552	+21 09 53.1720	1050-00210254	010.856023	+21.164770			14.7	13.5	1953.997
2	5.760	00 43 24.98208	+21 09 52.0704	1050-00210211	010.854092	+21.164464			18.8	16.0	1953.997
3	7.988	00 43 24.83088	+21 09 52.9308	1050-00210201	010.853462	+21.164703			18.6	18.0	1953.910
4	8.238	00 43 25.96608	+21 09 53.0928	1050-00210305	010.858192	+21.164748			17.3	17.1	1953.997

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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 [****ClosingBrace(s)Inserted****]
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bStel

%22>bDiam
arcsecb-r
magMflag

1 1.22200 43 25.40016+21 09 52.5600EO0903-0023479010.855834+21.16460013.49   1 35.64 27.9 0.5914.85   1 23.27 29.0 1.36   2 1.65100 43 25.45800+21 09 52.7004EO0930-0024222010.856075+21.16463914.66   1 30.69 28.1 0.5616.01   1 18.79 28.7 1.35   %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	2.006	00 43 25.45248	+21 09 53.1540	N32312331482	010.856052	+21.164765	1987.648	13.01	0.42	13.37	0.43	3	12.10	0.61

%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	2.162	00 43 25.46208	+21 09 53.2620	1111-0008648	010.856092	+21.164795	271	77	1976.7	22	6	5	14.79	13.71	13.62	12.56	11.29
2	3.259	00 43 25.59480	+21 09 52.9128	1111-0008649	010.856645	+21.164698	862	40	1953.9	0	0	2	14.62	15.10
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%3cEM%3e2&%3cFONT%20COLOR=%27#CD5B45%27>%203.259&%3cFONT%20COLOR=%27#CD5B45%27>00%2043%2025.59480&%3cFONT%20COLOR=%27#CD5B45%27>%2b21%2009%2052.9128&1111-0008649&010.856645&%2b21.164698&862&%2040&1953.9&%20%20%20%20%200&%20%20%20%20%200&2&14.62&15.10&%20&%20&%20%3cBR%3e">\Ahref='VizieR-5?-ref=VIZ663dc8fd34f63d&-out.add=.&-source=I/284/out&USNO-B1.0===1111-0008646&-out.orig=o' class='full'3 4.97400 43 25.04616+21 09 52.58161111-0008646010.854359+21.1646063872141953.9 0 0217.3616.23       4 7.01400 43 24.91416+21 09 53.53201111-0008645010.853809+21.1648705683341953.9 0 0217.7217.14       5 7.72400 43 25.92600+21 09 53.23321111-0008650010.858025+21.1647871302541953.9 0 0216.7616.70       6 8.19400 43 24.81480+21 09 52.85161111-0008644010.853395+21.164681 554601953.9 0 0218.6017.97       7 8.78600 43 26.00400+21 09 53.23321111-0008651010.858350+21.164787 511141953.9 0 0217.1817.39       %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	2.160	00 43 25.462008	+21 09 53.25984	1111-0008707	YM	010.8560917	+21.1647944	B	22.0	9.0	6.0	2.0	16.500	Y	15.720	Y	12.560	B	14.695	13.938	14.339
2	3.256	00 43 25.594656	+21 09 52.90992	1111-0008708	YM	010.8566444	+21.1646972	B	0.0	0.0	0.0	0.0	17.190	o	16.620	Y	15.100	e	14.750	14.000	14.398
3	4.976	00 43 25.045992	+21 09 52.58016	1111-0008705	..	010.8543583	+21.1646056	B	0.0	0.0	0.0	0.0	17.360	o			16.230	e
4	7.015	00 43 24.913992	+21 09 53.52984	1111-0008704	..	010.8538083	+21.1648694	B	0.0	0.0	0.0	0.0	17.720	o			17.140	e
5	7.723	00 43 25.926000	+21 09 53.22996	1111-0008709	..	010.8580250	+21.1647861	B	0.0	0.0	0.0	0.0	16.760	o			16.700	e
6	8.195	00 43 24.814656	+21 09 52.85016	1111-0008703	..	010.8533944	+21.1646806	B	0.0	0.0	0.0	0.0	18.600	o			17.970	e
[****ClosingBrace(s)Inserted****]
6	8.195	00 43 24.814656	+21 09 52.85016	1111-0008703	..	010.8533944	+21.1646806	B	0.0	0.0	0.0	0.0	18.600	o			17.970	e

%22>\Ahref='VizieR-5?-ref=VIZ663dc8fd34f63d&-out.add=.&-source=I/297/out&NOMAD1===1111-0008710' class='full'7 8.78600 43 26.004000+21 09 53.229961111-0008710..010.8583500+21.1647861B 0.0 0.0 0.0 0.017.180o    17.390e         %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	2.007	00 43 25.45272	+21 09 53.1540	NBQN001482	010.856053	+21.164765	1987.648	13.01	13.37	14.59	12.62	3	12.10	0.61

%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	1.605	00 43 25.37472	+21 09 52.9344	010.855728	+21.164704	-8.3	-3.9	14.751	14.399	14.79	13.62	13.71	12.56	11.29	7	1
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%3cEM%3e1&%3cFONT%20COLOR=%27#CD5B45%27>%201.605&%3cFONT%20COLOR=%27#CD5B45%27>00%2043%2025.37472&%3cFONT%20COLOR=%27#CD5B45%27>%2b21%2009%2052.9344&010.855728&%2b21.164704&%20%20%20%20-8.3&%20%20%20%20-3.9&14.751&14.399&14.79&13.62&13.71&12.56&11.29&%207&%201%3cBR%3e">\Ahref='VizieR-5?-ref=VIZ663dc8fd34f63d&-out.add=.&-source=I/317/sample&PPMXL===2068426181416106075' class='full'2 3.81200 43 25.58880+21 09 53.9604010.856620+21.164989 6.3 20.414.75114.39914.62  15.10     3 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	1.871	00 43 25.44434	+21 09 53.0583	010.856018	+21.164738	0.014	0.011	13.369	0.300	13.011	0.300	15.667	0.080	14.604	0.110	2009.0700	2009.0700	-8.3	4.2	-3.9	4.2
2	3.812	00 43 25.58882	+21 09 53.9600	010.856620	+21.164989	0.077	0.077	14.620	0.400	15.100	0.400	14.939	0.400	15.232	0.500	1987.8300	1987.8300	6.3	4.2	20.4	4.2

%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"	URAT1	RAICRS deg	DEICRS deg	Epoch yr	f.mag mag	e_ mag	pmRA [****ClosingBrace(s)Inserted****]
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pmRA

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%22>%5cFONT SIZE=-1mas/yrpmDE
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1 1.91400 43 25.362562+21 09 52.94180556-004461010.8559803+21.16476502012.93916.256 0.034 78.6 16.414.69613.93814.339           %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	1.811	00 43 25.438814	+21 09 53.02590	010.8559951	157.00	+21.1647294	118.00	64367+0001482	4	-4.5	5.9	0.6	4.5	4	33.738	13.011	13.369	12.622	14.590	14.696	13.938	14.339

%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 [****ClosingBrace(s)Inserted****]
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PS1

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RAJ2000
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DEJ2000
deg

1 1.81900 43 25.4324894312+21 09 53.066725745010.85596870596 5.7844+21.16474075715 2.34452801733168637684736                 8.1621e+01 1.0808e+0020.907862 0.014639 3.0797e+02 2.9685e+0119.117287 0.104692 7.3026e+02 4.6640e+0117.589207 0.069446 1.528080        1333901085601083041237679540819329215  55600446120.907862 0.014639 8.1621e+01 10.85596870596 21.16474075715 %0a%0a

Full	_r arcsec	_RAJ2000 "h:m:s"	_DEJ2000 "d:m:s"	GSC2	RA_ICRS deg	DE_ICRS deg	objID	Epoch yr	Class	Gmag mag	OMag mag	Bjmag mag	Fpgmag mag	Epgmag mag	Npgmag mag	Umag mag	Bmag mag	Vmag mag	umag mag	gmag mag	rmag mag	imag mag	zmag mag	ymag mag	Jmag mag	Hmag mag	Ksmag mag	Zmag mag	Ymag mag	W1mag mag	W2mag mag	W3mag mag	W4mag mag	FUVmag mag	NUVmag mag	a pix	e pix	PA pix
1	1.661	00 43 25.3500000000	+21 09 52.905600000	NBQN012092	010.85562500000	+21.16469600000	1323123312092	1997.759	0																		14.339
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1	1.661	00 43 25.3500000000	+21 09 52.905600000	NBQN012092	010.85562500000	+21.16469600000	1323123312092	1997.759	0																		14.339

%22>\Ahref='VizieR-5?-ref=VIZ663dc8fd34f63d&-out.add=.&-source=I/353/gsc242&-c=010.85597950000%20%2b21.16475386000,eq=ICRS,rs=2&-out.orig=o' class='full'2 1.87500 43 25.4203633714+21 09 53.019602168NBQN001482010.85597950000+21.16475386000 1323123314822013.8693  15.50320013.36970013.012000  12.622200      17.81118.95418.42618.00017.66617.3938 13.909 13.066 12.744    12.93612.781 9.035 7.18119.68419.102 12.101 0.615178.7 3 3.99600 43 25.5793248000+21 09 54.343872000NBQN012091010.85658052000+21.16509552000 13231233120912008.6500                        19.121  17.6397     14.399                       4 4.75900 43 25.0564584000+21 09 52.243632000NBQN035847010.85440191000+21.16451212000 13231233358472010.8743                    20.186  19.888                                 5 6.65200 43 24.9290472000+21 09 52.947360000NBQN035624010.85387103000+21.16470760000 13231233356242010.2753                      20.22220.314                                 %0a%0a

Full	_r arcsec	_RAJ2000 "h:m:s"	_DEJ2000 "d:m:s"	RA_ICRS deg	DE_ICRS deg	Source	e_RA_ICRS mas	e_DE_ICRS mas	Plx mas	e_ mas	PM mas/yr	pmRA mas/yr	e_ (...)	pmDE mas/yr	e_ (...)	RUWE	FG e-/s	e_ e-/s	Gmag mag	FBP e-/s	e_ e-/s	BPmag mag	FRP e-/s	e_ e-/s	RPmag mag	BP-RP mag	RV km/s	e_ km/s	Vbroad km/s	GRVSmag mag	QSO	Gal	NSS	XPcont	XPsamp [****ClosingBrace(s)Inserted****]
XPsamp ">
	RVS	EpochPh	EpochRV	MCMCGSP	MCMCMSC	And	Teff K	logg [cm/s2]	[Fe/H] [-]	Dist pc	A0 mag	HIP	PS1	SDSS13	SKYM2	TYC2	URAT1	AllWISE	APASS9	GSC23	RAVE5	2MASS	RAVE6	RAJ2000 deg	DEJ2000 deg
1	1.819	00 43 25.4324894312	+21 09 53.066725745	010.85596870596	+21.16474075715	2801733168637684736	5.7844	2.3445									81.73050	1.0823e+00	20.906406	3.0797e+02	2.9685e+01	19.117287	7.3026e+02	4.6640e+01	17.589207	1.528080					0	1	0	0	0	0	0	0	0	0	0							133390108560108304	1237679540819329215			URAT1-556004461	J004325.43+210953.0		NBQN001482		00432535+2109529		10.85596870596	21.16474075715

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