VizieR

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The 1 column 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.

I/252/out The USNO-A2.0 Catalogue (Monet+ 1998)
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metaI/252/out

The Full Catalogue (526280881 rows) (Note)

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Full	_r arcsec	USNO-A2.0	RAJ2000 deg	DEJ2000 deg	ACTflag	Mflag	Bmag mag	Rmag mag	Epoch yr
1	0.741	0675-10615888	147.950350	-17.079117			18.2	18.6	1954.249

Note: The construction of the GSC-II is still in progress: this version has no proper motions, and the magnitude limits are 18.5 in F (red) and 19.5 in J (blue). The data are copyrighted, check the data use Policy.

I/271/out The GSC 2.2 Catalogue (STScI, 2001)
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metaI/271/out

The Full GSC2.2.1 Catalogue (455851237 objects) (455851237 rows)

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Full	_r arcsec	GSC2.2	RA(ICRS) deg	DE(ICRS) deg	Epoch yr	Rmag mag	e_ mag	Bjmag mag	e_ mag	Class	a pix	e
1	0.199	S12112103395	147.950079	-17.079121	1984.264			18.59	0.41	0	2.90	0.19

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.

I/284/out The USNO-B1.0 Catalog (Monet+ 2003)
ReadMe+ftp
2003AJ....125..984M
metaI/284/out

The Whole-Sky USNO-B1.0 Catalog of 1,045,913,669 sources (1045175762 rows)

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Full	_r arcsec	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	0.164	0729-0291029	147.950142	-17.079178	156	56	1977.0	0	0	5	18.49	18.92	18.79	18.87	18.12
2	2.730	0729-0291025	147.949342	-17.079123	217	561	1990.0	-768	176	3			20.68	19.34	18.48

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

I/297/out NOMAD Catalog (Zacharias+ 2005)
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2004AAS...205.4815Z
metaI/297/out

The NOMAD-1 Catalog (1117612732 rows)

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Full	_r arcsec	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	0.163	0729-0292532	..	147.9501417	-17.0791778	B	0.0	0.0	0.0	0.0	18.790	B			18.870	B
2	2.731	0729-0292528	..	147.9493417	-17.0791222	B	-768.0	16.0	176.0	41.0	20.680	B			19.340	B

Note: This version of the GSC-II has no proper motions, but the limits on brightness which existed on GSC2.2 (F<18.5, B_j<19.5) were removed.

I/305/out The Guide Star Catalog, Version 2.3.2 (GSC2.3) (STScI, 2006)
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2008AJ....136..735L
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The Full GSC2.3.2 Catalogue (945592683 objects) (945592683 rows)

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Full	_r arcsec	GSC2.3	RAJ2000 deg	DEJ2000 deg	Epoch yr	Fmag mag	jmag mag	Vmag mag	Nmag mag	Class	a pix	e
1	0.348	S50K003395	147.950052	-17.079078	1995.304	18.81	18.59			0	2.46	0.15

I/317/sample

Target Name (resolved by Sesame) or Position:	Target dimension:
NB: The epoch used for the query is the original epoch of the table(s)	Radius Box size

Full	_r arcsec	RAJ2000 deg	DEJ2000 deg	pmRA mas/yr	pmDE mas/yr	b1mag mag	b2mag mag	r1mag mag	r2mag mag	imag mag	No	fl
1	0.287	147.950059	-17.079101	-14.8	5.0	18.49	18.79	18.92		18.12	4	0
2	2.786	147.949336	-17.079011	-778.2	189.7		20.68		19.34	18.48	3	0
3	3.675	147.949193	-17.079613	44.4	28.3	19.42		19.77		18.62	3	1

Full	_r arcsec	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	0.287	147.950059	-17.079101	0.115	0.115	18.594	0.300	18.806	0.300	18.728	0.400	18.811	0.500	1972.4700	1972.4700	-14.8	6.2	5.0	6.2
2	2.786	147.949336	-17.079011	0.133	0.133	20.680	0.400	19.340	0.400	19.580	0.400	18.520	0.500	1990.0699	1990.0699	-778.2	14.4	189.7	14.4
3	3.675	147.949193	-17.079613	0.163	0.163	19.420	0.400	19.770	0.400	19.649	0.400	19.840	0.500	1968.5000	1968.5000	44.4	7.2	28.3	7.2