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	6.515	11 40 35.64480	+82 53 32.2008	1725-00416869	175.148520	+82.892278			19.0	18.9	1955.161

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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	5.951	11 40 35.35872	+82 53 32.3916	EO0727-0188832	175.147328	+82.892331	18.60		1	3.41	6.9	0.34	19.86		-1	1.31	6.6	1.26
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%3cEM%3e1&%3cFONT%20COLOR=%27#CD5B45%27>%205.951&%3cFONT%20COLOR=%27#CD5B45%27>11%2040%2035.35872&%3cFONT%20COLOR=%27#CD5B45%27>%2b82%2053%2032.3916&EO0727-0188832&175.147328&%2b82.892331&18.60&%20&%201&%20%20%203.41&%20%20%206.9&%200.34&19.86&%20&-1&%20%20%201.31&%20%20%206.6&%20%201.26&%20%3cBR%3e">\Ahref='VizieR-5?-ref=VIZ662b5fc339c18b&-out.add=.&-source=I/267/out&APM-ID===EO1340-0207029&-out.orig=o' class='full'2 6.58511 40 35.64888+82 53 32.0208EO1340-0207029175.148537+82.89222819.13  -1 0.93 4.9 0.1519.60   1 4.12 7.7 0.46   %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	5.160	11 40 34.97280	+82 53 32.7408	N21002123937	175.145720	+82.892428	1997.179	18.35	0.47	18.72	0.43	3	2.35	0.31

%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	5.871	11 40 35.37216	+82 53 32.7228	1728-0032446	175.147384	+82.892423	207	129	1975.5	0	0	4	20.10	18.94	19.55	18.86
2	8.617	11 40 36.82944	+82 53 32.2008	1728-0032447	175.153456	+82.892278	533	106	1968.5	74	4	3	20.10	19.41		19.48
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%3cEM%3e2&%3cFONT%20COLOR=%27#CD5B45%27>%208.617&%3cFONT%20COLOR=%27#CD5B45%27>11%2040%2036.82944&%3cFONT%20COLOR=%27#CD5B45%27>%2b82%2053%2032.2008&1728-0032447&175.153456&%2b82.892278&533&106&1968.5&%20%20%20%2074&%20%20%20%20%204&3&20.10&19.41&%20&19.48&%20%3cBR%3e">\EndTABLESORT

Note: The Naval Observatory Merged Astrometric Dataset (NOMAD) contains astrometric and photometric data for over 1 billion stars derived from the Hipparcos (I/239), Tycho-2 (I/259), UCAC2 (I/289), and USNO-B1.0 (I/284) catalogs for astrometry and optical photometry, supplemented by 2MASS (II/246) near-infrared photometry.
An efficient remote query program findnomad1 is available in the cdsclient package, for Unix/Linux platforms

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	5.872	11 40 35.371992	+82 53 32.71992	1728-0032661	Y.	175.1473833	+82.8924222	B	0.0	0.0	0.0	0.0	18.350	Y	17.970	Y	18.860	B
2	8.617	11 40 36.829344	+82 53 32.20008	1728-0032662	..	175.1534556	+82.8922778	B	74.0	14.0	4.0	2.0	20.100	o			19.480	B

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Full	_r arcsec	_RAJ2000 "h:m:s"	_DEJ2000 "d:m:s"	GSC2.3	RAJ2000 deg	DEJ2000 deg	Epoch [****ClosingBrace(s)Inserted****]
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Epoch

%22>%5cFONT SIZE=-1yrFmag
magjmag
magVmag
magNmag
magClass

a
pixe

1 5.16011 40 34.97304+82 53 32.7408N752003937175.145721+82.8924281997.17918.3518.7218.87  3 2.35 0.31 %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	5.719	11 40 35.27088	+82 53 32.6328	175.146962	+82.892398	-7.1	1.6			20.10	19.55	18.94	18.86		4	0
2	8.730	11 40 36.85680	+82 53 31.9596	175.153570	+82.892211	75.2	2.8			20.10		19.41	19.48		3	0

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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_ [****ClosingBrace(s)Inserted****]
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e_

%20

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

e_
mag

alphaEpoch
yr

deltaEpoch
yr

pmRA
mas/yr

e_
(...)

pmDE
mas/yr

e_
(...)

1 5.71811 40 35.27086+82 53 32.6332175.146962+82.892398 0.115 0.11518.717 0.30018.354 0.30018.438 0.40018.078 0.5001975.51001975.5100 -7.1 5.2 1.6 5.2 2 8.73011 40 36.85678+82 53 31.9599175.153570+82.892211 0.133 0.13320.100 0.40019.480 0.40019.624 0.40019.072 0.5001968.54001968.5400 75.2 6.6 2.8 6.6 %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	5.922	11 40 35.367537	+82 53 32.52809	175.1473647	339.00	+82.8923689	352.00	58406+0003937	4	-13.0	9.1	-1.2	9.4	6	45.006	18.354	18.717		18.872

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