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	7.090	21 42 34.78872	+38 22 00.3108	1275-16328279	325.644953	+38.366753			18.2	17.4	1951.509
2	18.563	21 42 35.68488	+38 22 23.3112	1275-16328770	325.648687	+38.373142			18.9	17.8	1951.509
3	20.249	21 42 33.82872	+38 22 18.3324	1275-16327695	325.640953	+38.371759			19.0	17.9	1951.509
4	21.292	21 42 33.46152	+38 22 12.5508	1275-16327498	325.639423	+38.370153			17.6	16.5	1951.509
5	29.114	21 42 37.54488	+38 21 57.2508	1275-16329836	325.656437	+38.365903			19.0	18.0	1951.509

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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	7.579	21 42 34.77576	+38 21 59.8032	N033010029166	325.644899	+38.366612	1987.568	17.39	0.40	18.91	0.40	3	2.72	0.09
[****ClosingBrace(s)Inserted****]
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%3cEM%3e1&%3cFONT%20COLOR=%27#CD5B45%27>%207.579&%3cFONT%20COLOR=%27#CD5B45%27>21%2042%2034.77576&%3cFONT%20COLOR=%27#CD5B45%27>%2b38%2021%2059.8032&N033010029166&325.644899&%2b38.366612&1987.568&17.39&%200.40&18.91&%200.40&3&%20%202.72&%200.09%3cBR%3e">\Ahref='VizieR-5?-ref=VIZ66414f55e97fa&-out.add=.&-source=I/271/out&GSC2.2===N033010029487' class='full'218.42321 42 35.67672+38 22 23.1960N033010029487325.648653+38.3731101987.56817.73 0.4119.37 0.403 2.86 0.12 320.01321 42 33.83280+38 22 18.0120N033010029391325.640970+38.3716701987.56818.15 0.41    3 2.32 0.05 421.36121 42 33.44760+38 22 12.2736N033010029390325.639365+38.3700761987.56816.46 0.4017.89 0.403 3.65 0.20 529.04621 42 37.53096+38 21 56.9556N033010029073325.656379+38.3658211987.56817.94 0.41    3 2.51 0.05 %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	0.635	21 42 35.23080	+38 22 05.7504	1283-0517449	325.646795	+38.368264	80	80	1980.5	0	0	4	19.94		20.17	18.56	17.90
2	7.473	21 42 34.76544	+38 22 00.0408	1283-0517445	325.644856	+38.366678	57	122	1974.7	-6	-6	5	18.20	17.25	18.58	17.29	16.72
3	12.008	21 42 34.62000	+38 22 15.8016	1283-0517443	325.644250	+38.371056	352	116	1981.0	0	0	4	20.49		20.63	19.61	18.50
4	18.648	21 42 35.67744	+38 22 23.4300	1283-0517456	325.648656	+38.373175	72	103	1974.7	0	0	5	19.12	17.75	19.01	17.49	17.37
5	20.253	21 42 33.82608	+38 22 18.3000	1283-0517435	325.640942	+38.371750	92	46	1974.7	0	0	5	19.16	17.84	19.09	17.92	17.53
6	21.254	21 42 33.46416	+38 22 12.5220	1283-0517429	325.639434	+38.370145	62	85	1975.1	0	0	5	17.58	16.29	17.79	16.46	15.36
7	21.315	21 42 33.42408	+38 22 11.1612	1283-0517427	325.639267	+38.369767	561	999	1980.6	-110	16	4	20.66		21.00	19.12	16.00
8	29.073	21 42 37.54152	+38 21 57.2616	1283-0517476	325.656423	+38.365906	82	59	1974.7	0	0	5	19.19	17.90	19.20	17.66	17.61

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Full	_r arcsec	_RAJ2000 "h:m:s"	_DEJ2000 "d:m:s"	NOMAD1	YM [****ClosingBrace(s)Inserted****]
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YM

%22>RAJ2000
degDEJ2000
degr

pmRA
mas/yre_
(...)pmDE
mas/yre_
(...)Bmag
magr_

Vmag
magr_

Rmag
magr_

Jmag
magHmag
magKmag
magR

1 0.63421 42 35.230656+38 22 05.750041283-0542469YM325.6467944+38.3682639B 0.0 0.0 0.0 0.020.170B17.970Y18.560B14.94114.64414.688   2 7.47421 42 34.765344+38 22 00.040081283-0542465YM325.6448556+38.3666778B -6.0 1.0 -6.0 3.017.980Y17.860Y17.290B16.05115.36515.368   312.00721 42 34.620000+38 22 15.800161283-0542463..325.6442500+38.3710556B 0.0 0.0 0.0 0.020.630B    19.610B         418.64721 42 35.677344+38 22 23.430001283-0542478YM325.6486556+38.3731750B 0.0 0.0 0.0 0.018.350Y17.970Y17.490B16.58616.36416.271   520.25421 42 33.826008+38 22 18.300001283-0542454YM325.6409417+38.3717500B 0.0 0.0 0.0 0.018.350Y17.940Y17.920B16.53515.99315.246   621.25521 42 33.463992+38 22 12.519841283-0542448..325.6394333+38.3701444B 0.0 0.0 0.0 0.017.790B    16.460B         721.31521 42 33.424008+38 22 11.160121283-0542446YM325.6392667+38.3697667B -110.0 21.0 16.0 57.017.300Y17.250Y19.120B15.43914.86814.919   829.07221 42 37.541328+38 21 57.260161283-0542498YM325.6564222+38.3659056B 0.0 0.0 0.0 0.018.350Y17.970Y17.660B16.40515.83215.464   %0a%0a%3cP%3e%0a%3cFONT%20SIZE=%27-1%27%3e%3cEM%3e%3cFONT%20COLOR=%27#0000FF%27>%3cB%3eNote:%20Zone%20-30/%2b50deg%3cP%3e%0a

Full	_r arcsec	_RAJ2000 "h:m:s"	_DEJ2000 "d:m:s"	CMC14	f_	RAICRS deg	DEICRS deg	r'mag mag	Nt	Jmag mag	Hmag mag	Ksmag mag
1	7.800	21 42 34.77552	+38 21 59.5260	214234.7+382159		325.644898	+38.366535	17.129	2	16.052	15.365
2	21.519	21 42 33.43368	+38 22 12.2808	214233.4+382212		325.639307	+38.370078	16.786	2	15.439	14.869

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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	0.575	21 42 35.22288	+38 22 05.5452	N2Z4029167	325.646762	+38.368207	1987.568	18.61	20.38		18.12	0	2.40	0.20
2	7.577	21 42 34.77600	+38 21 59.8032	N2Z4029166	325.644900	+38.366612	1987.568	17.39	18.91		17.06	3	2.72	0.09
3	11.815	21 42 34.61832	+38 22 15.5568	N2Z4029342	325.644243	+38.370988	1987.568	19.54	20.88			3	1.85	0.11
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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	0.565	21 42 35.22096	+38 22 05.5128	325.646754	+38.368198	-1.6	-4.6	14.941	14.688	19.94	20.17		18.56	17.90	5	0
2	7.678	21 42 34.76760	+38 21 59.7528	325.644865	+38.366598	-3.9	-12.6	16.052	15.369	18.20	18.58	17.25	17.29	16.72	6	0
3	11.904	21 42 34.62360	+38 22 15.7044	325.644265	+38.371029	17.6	-0.8			20.49	20.63		19.61	18.50	4	0
4	18.375	21 42 35.66832	+38 22 23.1780	325.648618	+38.373105	-1.5	-5.7	16.587	16.271	19.12	19.01	17.75	17.49	17.37	6	0
5	20.211	21 42 33.81840	+38 22 18.1164	325.640910	+38.371699	0.8	-3.8	16.535	15.246	19.16	19.09	17.84	17.92	17.53	6	0
6	21.498	21 42 33.43776	+38 22 12.3600	325.639324	+38.370100	-6.0	-4.4	15.439	14.919	17.58	17.79	16.29	16.46	15.36	6	0
7	21.593	21 42 33.42648	+38 22 12.2592	325.639277	+38.370072	-105.8	39.9	15.439	14.919	20.66	21.00		19.12	16.00	5	1
8	29.059	21 42 37.54008	+38 21 57.2544	325.656417	+38.365904	2.0	0.6	16.406	15.464	19.19	19.20	17.90	17.66	17.61	6	0

%0a%0a

>	\BegDIVclass='sort-down ' </A>
dec 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	Bjmag mag	Vmag mag	Nmag mag	Jmag mag	e_ mag	Hmag mag	e_ mag	Kmag mag	e_ mag	2Mkey	Bmag mag	Rmag mag	Fld	dT yr	fg	fs	M
1	7.707	21 42 34.77219	+38 21 59.6734	XPM 256-0777731	325.644884	+38.366576	-3.04	-13.05	-2.65	-12.36	17.386	18.905		17.062	16.052	0.082	15.365	0.102	15.369	0.193	1121087105	18.2	17.4	287	48.901314	0	0	M
2	18.069	21 42 35.68199	+38 22 22.8001	XPM 256-0777750	325.648675	+38.373000	0.40	-10.40	0.79	-9.71	17.727	19.367		17.642	16.587	0.129	16.364		16.271		1121087131	18.9	17.8	287	48.901314	0	0	M
3	20.260	21 42 33.81454	+38 22 18.1382	XPM 256-0777712	325.640894	+38.371705	-2.40	-3.99	-2.01	-3.30	18.151	19.554	18.064	17.662	16.535	0.129	15.994	0.151	15.246		1121087127	19.0	17.9	287	48.901314	0	0	M
4	21.584	21 42 33.43031	+38 22 12.3708	XPM 256-0777703	325.639293	+38.370103	-6.57	-3.77	-6.17	-3.08	16.462	17.890		16.151	15.439	0.043	14.869	0.072	14.919	0.124	1121087120	17.6	16.5	287	48.901314	0	0	M
5	29.093	21 42 37.54749	+38 21 57.4273	XPM 256-0777792	325.656448	+38.365952	1.52	3.72	1.92	4.41	17.943	19.594		17.565	16.406	0.114	15.832	0.143	15.464	0.204	1121087102	19.0	18.0	287	48.901314	0	0	M

%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	0.565	21 42 35.22091	+38 22 05.5134	325.646754	+38.368198	0.073	0.073	20.376	0.300	18.613	0.300	18.838	0.400	17.510	0.500	1992.4900	1992.4900	-1.6	5.0	-4.6	5.0
2	7.678	21 42 34.76761	+38 21 59.7533	325.644865	+38.366598	0.086	0.086	18.905	0.300	17.386	0.300	17.627	0.400	16.450	0.500	1982.5700	1982.5700	-3.9	4.3	-12.6	4.3
3	11.903	21 42 34.62358	+38 22 15.7040	325.644265	+38.371029	0.115	0.115	20.880	0.300	19.536	0.300	19.776	0.400	18.713	0.500	1981.0700	1981.0700	17.6	6.6	-0.8	6.6
4	18.375	21 42 35.66832	+38 22 23.1782	325.648618	+38.373105	0.097	0.097	19.367	0.300	17.727	0.300	17.963	0.400	16.710	0.500	1977.6200	1977.6200	-1.5	4.9	-5.7	4.9
5	20.211	21 42 33.81838	+38 22 18.1159	325.640910	+38.371699	0.082	0.082	19.554	0.300	18.151	0.300	18.393	0.400	17.291	0.500	1983.9600	1983.9600	0.8	4.2	-3.8	4.2
6	21.498	21 42 33.43775	+38 22 12.3601	325.639324	+38.370100	0.071	0.071	17.890	0.300	16.462	0.300	16.704	0.400	15.586	0.500	1988.3400	1988.3400	-6.0	3.9	-4.4	3.9
7	21.593	21 42 33.42648	+38 22 12.2588	325.639277	+38.370072	0.075	0.084	21.000	0.400	19.120	0.400	19.330	0.400	17.932	0.500	1992.1900	1992.1900	-105.8	5.1	39.9	5.1
8	29.059	21 42 37.54005	+38 21 57.2539	325.656417	+38.365904	0.088	0.088	19.594	0.300	17.943	0.300	18.179	0.400	16.918	0.500	1981.6900	1981.6900	2.0	4.4	0.6	4.4

%0a%0a%3cP%3e%0a%3cFONT%20SIZE=%27-1%27%3e%3cEM%3e%3cFONT%20COLOR=%27#0000FF%27>%3cB%3eNote:%20Zone%20-40/%2b50deg%3cP%3e%0a