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	7.483	20 01 29.33088	-22 25 48.1404	0675-34745653	300.372212	-22.430039			18.2	18.1	1983.047
2	20.811	20 01 28.42752	-22 25 32.8008	0675-34745214	300.368448	-22.425778			16.9	17.6	1983.047
3	24.598	20 01 27.73608	-22 25 33.9600	0675-34744877	300.365567	-22.426100			18.4	18.1	1983.047
4	26.467	20 01 27.89880	-22 26 15.1404	0675-34744967	300.366245	-22.437539			19.0	17.8	1983.047

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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	0.655	20 01 28.85160	-22 25 52.7952	S331103128076	300.370215	-22.431332	1992.426	15.70	0.42			3	3.70	0.06
2	7.693	20 01 29.30712	-22 25 47.4060	S33110313060	300.372113	-22.429835	1992.355	17.53	0.44	18.79	0.42	0	2.86	0.22
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%3cEM%3e2&%3cFONT%20COLOR=%27#CD5B45%27>%207.693&%3cFONT%20COLOR=%27#CD5B45%27>20%2001%2029.30712&%3cFONT%20COLOR=%27#CD5B45%27>-22%2025%2047.4060&S33110313060&300.372113&-22.429835&1992.355&17.53&%200.44&18.79&%200.42&0&%20%202.86&%200.22%3cBR%3e">\Ahref='VizieR-5?-ref=VIZ663a7c1d33c411&-out.add=.&-source=I/271/out&GSC2.2===S33110313107' class='full'321.48220 01 28.41000-22 25 32.1744S33110313107300.368375-22.4256041992.35515.24 0.4316.98 0.410 4.02 0.18 425.33920 01 27.70632-22 25 33.3372S33110313100300.365443-22.4259271992.35517.77 0.4419.12 0.423 2.45 0.10 %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	0.538	20 01 28.85736	-22 25 52.5216	0675-1010561	300.370239	-22.431256	64	10	1983.4	0	0	2			20.06	15.65
2	7.753	20 01 29.32200	-22 25 47.5500	0675-1010568	300.372175	-22.429875	73	29	1974.6	0	0	5	18.87	17.87	18.44	17.66	17.25
3	21.379	20 01 28.41480	-22 25 32.2608	0675-1010559	300.368395	-22.425628	55	39	1974.6	0	0	5	17.27	15.85	16.91	15.21	15.18
4	24.975	20 01 27.73800	-22 25 33.4416	0675-1010557	300.365575	-22.425956	60	78	1974.6	6	-2	5	19.20	18.11	18.75	17.95	17.52
5	26.025	20 01 27.90600	-22 26 14.6832	0675-1010558	300.366275	-22.437412	109	104	1974.6	0	0	5	20.06	18.98	19.36	18.75	18.30

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Full	_r arcsec	_RAJ2000 "h:m:s"	_DEJ2000 "d:m:s"	NOMAD1	YM	RAJ2000 deg	DEJ2000 deg	r	pmRA mas/yr	e_ (...)	pmDE [****ClosingBrace(s)Inserted****]
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pmDE

%22>%5cFONT SIZE=-1mas/yre_
(...)Bmag
magr_

Vmag
magr_

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magr_

Jmag
magHmag
magKmag
magR

1 0.53920 01 28.857336-22 25 52.520160675-1075676..300.3702389-22.4312556B 0.0 0.0 0.0 0.020.060B    15.650B         2 7.75320 01 29.322000-22 25 47.550000675-1075683YM300.3721750-22.4298750B 0.0 0.0 0.0 0.018.440B17.170Y17.660B16.49216.13516.647   321.38020 01 28.414656-22 25 32.260080675-1075674YM300.3683944-22.4256278B 0.0 0.0 0.0 0.016.490Y15.690Y15.210B14.30713.85513.750   424.97620 01 27.738000-22 25 33.440160675-1075672YM300.3655750-22.4259556B 6.0 1.0 -2.0 2.018.370Y17.750Y17.950B16.51215.91615.265   526.02220 01 27.906000-22 26 14.679960675-1075673..300.3662750-22.4374111B 0.0 0.0 0.0 0.019.360B    18.750B         %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	21.279	20 01 28.43016	-22 25 32.2968	200128.4-222532		300.368459	-22.425638	15.783	2	14.308	13.855	13.751

%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	0.654	20 01 28.85160	-22 25 52.7916	SC3X028076	300.370215	-22.431331	1992.426	15.70	22.05			3	3.70	0.06
2	7.700	20 01 29.30736	-22 25 47.3988	SC3X003060	300.372114	-22.429833	1992.355	17.53	18.79		17.19	3	2.86	0.22
3	14.698	20 01 27.83592	-22 25 52.6404	SC3X029789	300.365983	-22.431289	1977.552		21.91			3	1.64	0.23
4	21.488	20 01 28.41024	-22 25 32.1672	SC3X003107	300.368376	-22.425602	1992.355	15.24	16.98		15.08	0	4.02	0.18
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%3cEM%3e4&%3cFONT%20COLOR=%27#CD5B45%27>21.488&%3cFONT%20COLOR=%27#CD5B45%27>20%2001%2028.41024&%3cFONT%20COLOR=%27#CD5B45%27>-22%2025%2032.1672&SC3X003107&300.368376&-22.425602&1992.355&15.24&16.98&%20&15.08&0&%20%204.02&%200.18%3cBR%3e">\Ahref='VizieR-5?-ref=VIZ663a7c1d33c411&-out.add=.&-source=I/305/out&GSC2.3===SC3X003100&-out.orig=o' class='full'525.34520 01 27.70632-22 25 33.3300SC3X003100300.365443-22.4259251992.35517.7719.12  17.393 2.45 0.10 626.28620 01 27.87240-22 26 14.6976SC3X002986300.366135-22.4374161992.35518.6719.93  18.233 2.09 0.18 %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	0.715	20 01 28.85376	-22 25 52.9824	300.370224	-22.431384	0.4	-7.8				20.06		15.65		2	0
2	7.794	20 01 29.32656	-22 25 47.5608	300.372194	-22.429878	5.8	0.8	16.492	16.648	18.87	18.44	17.87	17.66	17.25	6	0
3	21.152	20 01 28.42776	-22 25 32.4408	300.368449	-22.425678	8.3	-4.1	14.308	13.751	17.27	16.91	15.85	15.21	15.18	6	0
4	25.052	20 01 27.72816	-22 25 33.4560	300.365534	-22.425960	4.9	-1.3	16.512	15.265	19.20	18.75	18.11	17.95	17.52	6	0
5	26.317	20 01 27.89664	-22 26 14.9460	300.366236	-22.437485	-0.7	-8.3			20.06	19.36	18.98	18.75	18.30	5	0

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Full	_r arcsec	_RAJ2000 "h:m:s"	_DEJ2000 "d:m:s"	ID	RAICRS deg	DEICRS [****ClosingBrace(s)Inserted****]
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DEICRS

%20

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1 7.58820 01 29.31238-22 25 47.6470XPM 135-1398742300.372135-22.429902 -9.08 2.51 -10.41 2.6017.53118.788  17.18916.492 0.11116.136 0.18216.648   3163672818.218.1 59515.43552400M 221.13320 01 28.42827-22 25 32.4589XPM 135-1398727300.368451-22.425683 6.72 -7.15 5.40 -7.0715.23716.981  15.07614.308 0.03213.855 0.04313.751 0.044 3163674016.917.6 59515.43552400M 325.14720 01 27.71759-22 25 33.4558XPM 135-1398712300.365490-22.425960 -10.19 3.15 -11.52 3.2317.77319.120  17.39216.512 0.12215.916 0.14915.265   3163673718.418.1 59515.43552400M %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"	SPMID	RAJ2000 deg	e_ mas	DEJ2000 deg	e_ mas	pmRA mas/yr	e_ (...)	pmDE mas/yr	e_ (...)	Epoch yr	N1	N2	Nc	Bmag mag	Vmag mag	Jmag mag	Hmag mag	Kmag mag	2M	igal	A
1	7.647	20 01 29.315112	-22 25 47.60076	5870366305	300.3721463	111.8	-22.4298891	108.3	2.18	4.36	1.18	4.11	1979.92	6	0	1	17.58	18.20	16.492	16.136	16.648	2M	0	A
2	21.205	20 01 28.429920	-22 25 32.37528	5870366302	300.3684580	24.2	-22.4256598	24.2	17.12	1.41	-5.44	1.42	1995.76	8	0	4	16.88	16.26	14.308	13.855	13.751	2M	0	A

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Full	_r arcsec	_RAJ2000 "h:m:s"	_DEJ2000 "d:m:s"	UCAC4	RAJ2000 deg	DEJ2000 deg	[****ClosingBrace(s)Inserted****]
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mas/yr

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121.18520 01 28.424400-22 25 32.42100338-199379300.3684350-22.4256725 8815.8530 0 13.3 -6.714.30813.751        000000011 %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	7.794	20 01 29.32652	-22 25 47.5612	300.372194	-22.429878	0.099	0.099	18.788	0.300	17.531	0.300	17.767	0.400	16.762	0.500	1976.5700	1976.5700	5.8	5.5	0.8	5.5
2	21.185	20 01 28.42438	-22 25 32.4211	300.368435	-22.425673	0.034	0.034	16.981	0.300	15.237	0.300	15.465	0.400	14.146	0.500	1977.8700	1978.2400	13.3	2.4	-6.7	2.4
3	25.053	20 01 27.72812	-22 25 33.4558	300.365534	-22.425960	0.083	0.083	19.120	0.300	17.773	0.300	18.014	0.400	16.948	0.500	1982.9700	1982.9700	4.9	4.6	-1.3	4.6
4	26.317	20 01 27.89669	-22 26 14.9459	300.366236	-22.437485	0.103	0.103	19.928	0.300	18.673	0.300	18.909	0.400	17.905	0.500	1974.7000	1974.7000	-0.7	5.9	-8.3	5.9

%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