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	3.014	0375-09548778	149.136100	-49.846634			16.2	16.4	1980.239
2	3.727	0375-09549211	149.138034	-49.846942			17.3	16.7	1980.239

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	3.510	S130233152945	149.135666	-49.846409	1998.460	17.15	0.53	14.60	0.28	3	3.44	0.62

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	Ndet	R1mag mag	B2mag mag	R2mag mag
1	2.448	0401-0181452	149.136695	-49.846728	710	129	1984.2	3	16.09	15.42	15.77
2	3.854	0401-0181456	149.138125	-49.846942	41	89	1980.2	2	16.54	16.26
3	3.939	0401-0181444	149.135578	-49.846584	999	70	1984.2	2		15.39	16.61

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
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The NOMAD-1 Catalog (1117612732 rows)

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Full	_r arcsec	NOMAD1	YM	RAJ2000 deg	DEJ2000 deg	r	Bmag mag	r_	Rmag mag	r_
1	2.448	0401-0190843	..	149.1366944	-49.8467278	B	15.420	B	15.770	B
2	3.853	0401-0190847	..	149.1381250	-49.8469417	B	16.260	B	16.540	e
3	3.939	0401-0190835	..	149.1355778	-49.8465833	B	15.390	B	16.610	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	3.505	S5OD052945	149.135667	-49.846407	1998.460	17.15	14.60			3	3.44	0.62

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	GSC2	RA_ICRS deg	DE_ICRS deg	objID	Epoch yr	Class	Gmag mag	OMag mag	Bjmag mag	Fpgmag mag	Epgmag mag	Npgmag mag	Umag mag	Bmag mag	Vmag mag	umag mag	gmag mag	rmag mag	imag mag	zmag mag	ymag mag	Jmag mag	Hmag mag	Ksmag mag	Zmag mag	Ymag mag	W1mag mag	W2mag mag	W3mag mag	W4mag mag	FUVmag mag	NUVmag mag	a pix	e pix	PA pix
1	2.172	S5OD214618	149.13673420000	-49.84665540000	21302331214618	2010.560	4														18.229							14.730	14.782	11.379	8.552
2	3.510	S5OD052945	149.13566589355	-49.84640884399	2130233152945	1998.460	0			14.600000	17.152399																							3.436	0.619	5.7

Full	_r arcsec	Pop	Gmag mag	GBmag mag	GRmag mag	Gsmag mag	RAICRS deg	DEICRS deg	r pc	pmRA mas/yr	pmDE mas/yr	RV km/s	Mass Sun	[Fe/H] [Sun]	Teff K	logg [cm/s2]
1	2.607	1	15.537	15.973	14.916	14.640	149.1381811275	-49.8462956731	1172.8	-4.410	3.100	22.4	1.0100	-0.16	5754	4.430
2	4.834	1	14.865	15.674	13.935	13.517	149.1389987007	-49.8466511392	4159.8	-6.574	4.376	22.1	1.2300	-0.05	4467	2.500
3	4.834	1	14.864	15.674	13.935	13.517	149.1389986826	-49.8466512827	4159.8	-6.574	4.376	28.3	1.5300	-0.05	0	0.000
4	4.835	1	24.783	26.370	23.493	22.893	149.1389986086	-49.8466518712	4159.8	-6.574	4.376	27.9	0.3000	-0.05	3350	4.950