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	1.930	08 30 54.48816	+11 40 58.1628	0975-05930257	127.727034	+11.682823			18.9	18.0	1951.985

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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	1.532	08 30 54.51552	+11 40 58.2024	EO0456-0183517	127.727148	+11.682834	17.53		1	14.75	13.0	0.60	19.38		1	10.76	10.0	1.85
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%3cEM%3e1&%3cFONT%20COLOR=%27#CD5B45%27>%201.532&%3cFONT%20COLOR=%27#CD5B45%27>08%2030%2054.51552&%3cFONT%20COLOR=%27#CD5B45%27>%2b11%2040%2058.2024&EO0456-0183517&127.727148&%2b11.682834&17.53&%20&%201&%20%2014.75&%20%2013.0&%200.60&19.38&%20&%201&%20%2010.76&%20%2010.0&%20%201.85&%20%3cBR%3e">\Ahref='VizieR-5?-ref=VIZ6640903d1d33d1&-out.add=.&-source=I/267/out&APM-ID===EO0456-0183416&-out.orig=o' class='full'2 7.65108 30 55.07952+11 41 02.1120EO0456-0183416127.729498+11.68392020.00L 0      21.57   1 8.36 5.1 1.57   %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	1.661	08 30 54.51336	+11 40 57.9252	N231020012439	127.727139	+11.682757	1989.178	17.56	0.42	18.74	0.42	3	5.38	0.57

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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	0.634	08 30 54.57288	+11 40 58.5408	1016-0160414	127.727387	+11.682928	78	86	1980.2	52	16	3		18.43	18.61		18.28
2	1.242	08 30 54.67752	+11 40 59.4804	1016-0160415	127.727823	+11.683189	80	135	1983.2	26	14	4		18.85	19.10	19.60	18.87
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%3cEM%3e2&%3cFONT%20COLOR=%27#CD5B45%27>%201.242&%3cFONT%20COLOR=%27#CD5B45%27>08%2030%2054.67752&%3cFONT%20COLOR=%27#CD5B45%27>%2b11%2040%2059.4804&1016-0160415&127.727823&%2b11.683189&%2080&135&1983.2&%20%20%20%2026&%20%20%20%2014&4&%20&18.85&19.10&19.60&18.87%3cBR%3e">\Ahref='VizieR-5?-ref=VIZ6640903d1d33d1&-out.add=.&-source=I/284/out&USNO-B1.0===1016-0160413&-out.orig=o' class='full'3 1.84808 30 54.49344+11 40 58.19161016-0160413127.727056+11.6828311301101976.6 0 0519.8618.1118.8518.3118.34 4 2.90008 30 54.77952+11 41 00.25081016-0160416127.728248+11.6834034493371979.0 -44 -30320.78  20.1020.59   5 6.56508 30 54.21408+11 40 55.75081016-0160412127.725892+11.6821537263781950.0 -2 -23    20.4720.2118.05 %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	0.638	08 30 54.572664	+11 40 58.54008	1016-0163981	..	127.7273861	+11.6829278	B	52.0	2.0	16.0	3.0	18.610	B			18.430	e
2	1.240	08 30 54.677328	+11 40 59.48004	1016-0163982	..	127.7278222	+11.6831889	B	26.0	3.0	14.0	5.0	19.100	B			19.600	B
3	1.850	08 30 54.493344	+11 40 58.19016	1016-0163980	..	127.7270556	+11.6828306	B	0.0	0.0	0.0	0.0	18.850	B			18.310	B
4	2.897	08 30 54.779328	+11 41 00.25008	1016-0163983	..	127.7282472	+11.6834028	B	-44.0	15.0	-30.0	11.0	20.100	B			20.590	B
5	6.566	08 30 54.214008	+11 40 55.75008	1016-0163979	..	127.7258917	+11.6821528	B	-2.0	0.0	-2.0	0.0	20.470	B			20.210	B

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%3cEM%3e%20%3cFONT%20COLOR=%27#CD5B45%27>Full

%22> _r
arcsec _RAJ2000
"h:m:s" _DEJ2000
"d:m:s"GSC2.3

RAJ2000
degDEJ2000
degEpoch
yrFmag
magjmag
magVmag
magNmag
magClass

a
pixe

1 1.65608 30 54.51360+11 40 57.9288N8WW012439127.727140+11.6827581989.17817.5618.7418.5817.953 5.38 0.57 %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	0.733	08 30 54.56664	+11 40 58.4904	127.727361	+11.682914	52.1	16.7				18.61	18.43		18.28	3	0
2	1.176	08 30 54.67176	+11 40 59.4732	127.727799	+11.683187	26.3	15.2				19.10	18.85	19.60	18.87	4	0
3	1.832	08 30 54.49392	+11 40 58.2348	127.727058	+11.682843	6.4	3.0			19.86	18.85	18.11	18.31	18.34	5	0
4	2.747	08 30 54.76176	+11 41 00.3480	127.728174	+11.683430	-46.7	-27.3			20.78	20.10		20.59		3	0
5	6.534	08 30 54.21552	+11 40 55.7796	127.725898	+11.682161	51.5	-10.4				20.47		20.21	18.05	3	0

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

%20

%22>%5cFONT SIZE=-1dege_RAJ2000
(...)

e_DEJ2000
arcsec

magBJ
mag

e_
mag

magRF
mag

e_
mag

magG
mag

e_
mag

magGrvs
mag

e_
mag

alphaEpoch
yr

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yr

pmRA
mas/yr

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pmDE
mas/yr

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(...)

1 0.73308 30 54.56669+11 40 58.4900127.727361+11.682914 0.133 0.13318.610 0.40018.430 0.40018.466 0.40018.245 0.5001980.25001980.2500 52.1 6.6 16.7 6.6 2 1.17608 30 54.67175+11 40 59.4728127.727799+11.683187 0.115 0.11519.100 0.40019.600 0.40019.434 0.40019.742 0.5001983.28001983.2800 26.3 6.3 15.2 6.3 3 1.47508 30 54.52177+11 40 58.1081127.727174+11.682808 0.072 0.03418.741 0.30017.562 0.30018.247 0.08317.293 0.1122005.93002005.9300 6.4 5.0 3.0 5.0 4 2.74708 30 54.76175+11 41 00.3478127.728174+11.683430 0.133 0.13320.100 0.40020.590 0.40020.427 0.40020.727 0.5001979.09001979.0900 -46.7 6.8 -27.3 6.8 5 6.53308 30 54.21553+11 40 55.7799127.725898+11.682161 0.133 0.13320.470 0.40020.210 0.40020.268 0.40019.985 0.5001994.71001994.7100 51.5 24.6 -10.4 24.6 %0a%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	1.369	08 30 54.523344	+11 40 58.82993	127.7271806	91.00	+11.6830083	132.00	60704+0012439	4	14.3	3.6	12.2	5.2	8	50.046	17.562	18.741	17.949	18.583

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Full	_r arcsec	_RAJ2000 "h:m:s"	_DEJ2000 "d:m:s"	GSC2	RA_ICRS deg	DE_ICRS deg	objID	Epoch yr	Class	Gmag [****ClosingBrace(s)Inserted****]
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Gmag

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PA
pix

1 1.48708 30 54.5092192670+11 40 58.084033654N8WW012439127.72716810000+11.68281419000 12310200124392012.7823  19.88110018.74120017.562600  17.949100      20.05520.22820.04719.71019.70219.4664          15.58015.34811.564 8.18120.98521.156 5.379 0.568151.7 %0a%0a%0a%0a%3cP%3e%0a%3cFONT%20SIZE=%27-1%27%3e%3cEM%3e%3cFONT%20COLOR=%27#0000FF%27>%3cB%3eNote:%20SDSS%20is%20also%20available%20from%20http://www.sdss.org/%3cP%3e%0a

Full	_r arcsec	_RAJ2000 "h:m:s"	_DEJ2000 "d:m:s"	mode	cl	SDSS	m_	zsp	umag mag	e_ mag	gmag mag	e_ mag	rmag mag	e_ mag	imag mag	e_ mag	zmag mag	e_ mag	RA_ICRS deg	DE_ICRS deg	ObsDate yr	Q
1	1.409	08 30 54.52140	+11 40 58.1317	1	3	J083054.52+114058.1			20.059	0.099	18.920	0.015	18.346	0.014	18.009	0.017	17.842	0.043	127.727191	+11.682816	2005.9313	3
2	1.550	08 30 54.51258	+11 40 58.1288	2	3	J083054.51+114058.1			20.325	0.117	18.946	0.022	18.328	0.013	18.023	0.016	17.751	0.038	127.727149	+11.682815	2005.1887	2

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