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	0.463	20 08 56.23800	-51 14 03.4728	0375-38528411	302.234325	-51.234298			20.2	18.1	1980.423
2	9.418	20 08 56.88336	-51 14 10.8024	0375-38528568	302.237014	-51.236334			20.6	18.2	1980.423
3	17.277	20 08 56.86680	-51 14 19.9716	0375-38528561	302.236945	-51.238881			17.8	16.8	1980.423
4	17.429	20 08 58.06344	-51 14 03.5520	0375-38528912	302.241931	-51.234320			20.4	18.2	1980.423

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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	17.086	20 08 56.83224	-51 14 19.8888	S332131314649	302.236801	-51.238858	1990.723	17.19	0.38	17.95	0.26	3	2.63	0.13

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">Note: The USNO-B Catalog presents positions, proper motions, magnitudes un blue, red and infrared, as well as star/galaxy estimators for 1,045,175,762 objects derived from 3,648,832,040 separate observations. The data were taken from scans of 7,435 Schmidt plates taken from various sky surveys during the last 50 years.
USNO-B1.0 catalog was created by Dave Monet and collaborators at http://www.nofs.navy.mil/data/fchpix/
Note that the star/galaxy estimators may be mixed up in dense regions.

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	0.773	20 08 56.22336	-51 14 03.0804	0387-0795933	302.234264	-51.234189	75	99	1986.4	0	0	4		20.17	20.70	19.83	18.77
2	8.857	20 08 56.80944	-51 14 10.6620	0387-0795935	302.236706	-51.236295	59	111	1983.8	-28	-16	3		19.55	21.26	19.23
3	16.901	20 08 56.84688	-51 14 19.6404	0387-0795936	302.236862	-51.238789	29	37	1986.4	0	0	4		17.19	17.86	17.00	16.90
4	17.356	20 08 58.05480	-51 14 03.2316	0387-0795940	302.241895	-51.234231	100	254	1980.4	0	0	2		20.06	21.04

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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 mas/yr	e_ (...)	Bmag [****ClosingBrace(s)Inserted****]
">

Bmag

%22>%5cFONT SIZE=-1magr_

Vmag
magr_

Rmag
magr_

Jmag
magHmag
magKmag
magR

1 0.77320 08 56.223336-51 14 03.080040387-0874081..302.2342639-51.2341889B 0.0 0.0 0.0 0.020.700B    19.830B         2 8.85520 08 56.809344-51 14 10.659840387-0874083..302.2367056-51.2362944B -28.0 3.0 -16.0 6.021.260B    19.230B         316.90020 08 56.846664-51 14 19.640040387-0874084YM302.2368611-51.2387889B 0.0 0.0 0.0 0.018.380Y    17.000B16.18916.07115.842   417.35520 08 58.054656-51 14 03.230160387-0874088..302.2418944-51.2342306B 0.0 0.0 0.0 0.021.040B    20.060e         %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	0.818	20 08 56.24472	-51 14 03.0984	SCC7014687	302.234353	-51.234194	1990.723	19.77	20.94		18.90	3	1.63	0.39
2	9.262	20 08 56.89416	-51 14 10.4928	SCC7014666	302.237059	-51.236248	1990.723	19.46	21.57			3	1.44	0.25
3	17.083	20 08 56.83248	-51 14 19.8852	SCC7014649	302.236802	-51.238857	1990.723	17.19	17.95		16.79	3	2.63	0.13
4	17.350	20 08 58.05408	-51 14 03.2208	SCC7026341	302.241892	-51.234228	1975.372		21.28			0	1.27	0.29

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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 [****ClosingBrace(s)Inserted****]
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%27%29%22%20onMouseOut=%22laz%28%29%22>r2mag

%20

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

No

fl

1 0.51020 08 56.22024-51 14 03.3432302.234251-51.234262 -3.4 -9.3      20.7020.1719.8318.77 4 0 2 9.17920 08 56.82144-51 14 10.9860302.236756-51.236385 -24.1 -26.6      21.2619.5519.23   3 0 317.32420 08 56.84304-51 14 20.1048302.236846-51.238918 -7.8 -13.616.18915.842  17.8617.1917.0016.90 5 0 417.66820 08 58.08912-51 14 03.9516302.242038-51.234431 16.4 -36.6      21.0420.06     2 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	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	17.434	20 08 56.83725	-51 14 20.2415	XPM 077-1521458	302.236822	-51.238956	-13.59	-24.43	-14.78	-24.66	17.186	17.953		16.791	16.189	0.095	16.071	0.159	15.842		546201277	17.8	16.8	233	19.289208	0	0	M

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Full	_r arcsec	_RAJ2000 "h:m:s"	_DEJ2000 "d:m:s"	SPMID	RAJ2000 deg	[****ClosingBrace(s)Inserted****]
">

deg&%">\BegDIVclass='sort-down ' </A>dece_
masDEJ2000
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

117.17520 08 56.838672-51 14 19.961522530108595302.2368278 67.3-51.2388782 68.1 -4.87 3.89 -9.19 4.121992.11 5 0 117.9917.5616.18916.07115.8422M0A %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	0.510	20 08 56.22025	-51 14 03.3427	302.234251	-51.234262	0.115	0.115	20.944	0.300	19.771	0.300	20.001	0.400	19.053	0.500	1986.4800	1986.4800	-3.4	16.1	-9.3	16.1
2	9.179	20 08 56.82146	-51 14 10.9860	302.236756	-51.236385	0.133	0.133	21.565	0.300	19.457	0.300	19.619	0.400	18.093	0.500	1983.8500	1983.8500	-24.1	20.8	-26.6	20.8
3	17.324	20 08 56.84309	-51 14 20.1050	302.236846	-51.238918	0.102	0.102	17.953	0.300	17.186	0.300	17.359	0.400	16.699	0.500	1989.2000	1989.2000	-7.8	12.3	-13.6	12.3
4	17.668	20 08 58.08912	-51 14 03.9521	302.242038	-51.234431	0.163	0.163	21.283	0.300	20.060	0.400	20.294	0.400	19.312	0.500	1980.4200	1980.4200	16.4	32.2	-36.6	32.2

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