VizieR

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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.

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

metaI/252/out

The Full Catalogue (526280881 rows) (Note)

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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	9.971	01 21 33.45743	+29 41 19.4027	1125-00457517	020.389406	+29.688723			19.9	19.2	1949.973

Note: The current version includes only the North (POSS-I plates)

I/267/out The APM-North Catalogue (McMahon+, 2000)
ReadMe+ftp

metaI/267/out

The Full Northern APM Catalogue (166466987 rows)

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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	Mflag
1	9.544	01 21 33.42482	+29 41 19.2804	EO0030-0307603	020.389270	+29.688689	18.93		-1	-0.65	5.1	0.29	20.12		-1	-0.79	6.6	1.19

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	_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	9.894	01 21 33.44398	+29 41 19.5430	1196-0018347	020.389350	+29.688762	46	91	1976.0	0	0	5	20.07	19.88	20.75	19.75	18.61

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)
ReadMe+ftp
2004AAS...205.4815Z
metaI/297/out

The NOMAD-1 Catalog (1117612732 rows)

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Full	_r arcsec	_RAJ2000 "h:m:s"	_DEJ2000 "d:m:s"	NOMAD1	RAJ2000 deg	DEJ2000 deg	YM	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	9.893	01 21 33.444000	+29 41 19.53996	1196-0018520	020.3893500	+29.6887611	..	B	0.0	0.0	0.0	0.0	20.750	B			19.750	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)
ReadMe+ftp
2008AJ....136..735L
metaI/305/out

The Full GSC2.3.2 Catalogue (945592683 objects) (945592683 rows)

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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	2.078	01 21 32.84040	+29 41 12.2892	NBLK006349	020.386835	+29.686747	1992.750		22.00			3	1.43	0.36

I/317/sample

The PPMXL Catalog (Roeser+ 2010)

ReadMe+ftp

2010AJ....139.2440R

PPMXL catalog of positions and proper motions on the ICRS (910469430 rows)

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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 mag	imag mag	No	fl
1	9.952	01 21 33.45142	+29 41 19.4962	020.389381	+29.688749	-0.8	-1.3			20.07	20.75	19.88	19.75	18.61	5	0

Note:

I/324/igsl3 The Initial Gaia Source List (IGSL) (Smart, 2013)
ReadMe+ftp
2014A&A...570A..87S
metaI/324/igsl3

IGSL3 data release (1,222,598,530 sources) (1222598530 rows)

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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_ mag	magGrvs mag	e_ mag	alphaEpoch yr	deltaEpoch yr	pmRA mas/yr	e_ (...)	pmDE mas/yr	e_ (...)
1	9.800	01 21 33.44439	+29 41 19.3546	020.389352	+29.688710	0.013	0.013	20.477	0.300	19.457	0.300	19.720	0.085	19.038	0.114	2009.7900	2009.7900	21.6	2.8	11.5	4.8
2	9.953	01 21 33.45148	+29 41 19.4962	020.389381	+29.688749	0.103	0.103	20.750	0.400	19.750	0.400	19.961	0.400	19.134	0.500	1976.0100	1976.0100	-0.8	4.8	-1.3	4.8

Note:

I/351/gps1_p The extended Gaia-PS1-SDSS (GPS1+) proper motion catalog (Tian+, 2020)
ReadMe+ftp
2020ApJS..248...28T
metaI/351/gps1_p

Extended Gaia-PS1-SDSS (GPS1+) proper motion catalog (original column names in green) (390405023 rows)

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Full	_r arcsec	_RAJ2000 "h:m:s"	_DEJ2000 "d:m:s"	RA_ICRS deg	DE_ICRS deg	rmag mag	pmRA mas/yr	e_ (...)	pmxRA mas/yr	e_ (...)	Chi2RA	pmGRA mas/yr	pmDE mas/yr	e_ (...)	pmxDE mas/yr	e_ (...)	Chi2DE	pmGDE mas/yr	Nobs	Flag	PS1	Gaia	DR9+DR12	Sloan	2M
1	9.905	01 21 33.4379981002	+29 41 19.205503626	020.38939159986	+29.68870828241	19.760082	20.831	2.703	3.494	5.877	1.06602e+00	6.182	14.431	2.457	19.135	2.673	2.94471e+00	-0.854	7	30	PS1	Gaia	DR9+DR12	Sloan	2M

I/353/gsc242

The Guide Star Catalog, Version 2.4.2 (GSC2.4.2) (STScI, 2020)

ReadMe+ftp

2008AJ....136..735L

Guide Star Catalogue, Version 2.4.2 (original column names in green) (3485671481 rows)

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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 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	2.080	01 21 32.8404235840	+29 41 12.287750244	NBLK006349	020.38683509827	+29.68674659729	132223206349	1992.750	3			21.998000							21.997	22.057	20.946	21.805	21.843													1.430	0.360	19.5

Note: SDSS is also available from http://www.sdss3.org/dr9/

V/139/sdss9 The SDSS Photometric Catalog, Release 9 (Adelman-McCarthy+, 2012)
ReadMe+ftp
2012ApJS..203...21A
metaV/139/sdss9

Data Release 9 (469,053,874 primary sources plus 324,960,076 secondary sources); 2,674,200 spectroscopic targets. Data Release 9 is the first release of the spectra from the SDSS-III's Baryon Oscillation Spectroscopic Survey (BOSS). The photometric part contains the same sources as the Data Release 8, with a corrected astrometry. (794013950 rows) (Note)

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Full	_r arcsec	_RAJ2000 "h:m:s"	_DEJ2000 "d:m:s"	objID	RA_ICRS deg	DE_ICRS deg	mode	q_	cl	SDSS9	m_	Im	ObsDate yr	Q	umag mag	e_ mag	gmag mag	e_ mag	rmag mag	e_ mag	imag mag	e_ mag	zmag mag	e_ mag	zsp
1	2.548	01 21 32.69616	+29 41 12.1416	1237680333258490956	020.386234	+29.686706	1		3	J012132.69+294112.1		Im	2009.7968	3	22.003	0.623	22.065	0.246	20.945	0.157	21.800	0.600	21.843	1.868

Note:

V/147/sdss12 The SDSS Photometric Catalogue, Release 12 (Alam+, 2015)
ReadMe+ftp
2015ApJS..219...12A
metaV/147/sdss12

Data Release 12 (469,053,874 primary sources plus 324,960,094 secondary sources); 3,538,079 spectroscopic targets (original column names in green) (794013968 rows) (Note)

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Full	_r arcsec	_RAJ2000 "h:m:s"	_DEJ2000 "d:m:s"	RA_ICRS deg	DE_ICRS deg	mode	q_	class	SDSS12	m_	objID	ObsDate yr	Q	umag mag	e_ mag	gmag mag	e_ mag	rmag mag	e_ mag	imag mag	e_ mag	zmag mag	e_ mag	zsp	zph	e_	<zph>
1	2.547	01 21 32.69623	+29 41 12.1423	020.386234	+29.686706	1		3	J012132.69+294112.1		1237680333258490956	2009.7969	3	22.003	0.623	22.065	0.246	20.945	0.157	21.800	0.600	21.843	1.868		0.1605	0.1121	0.2921

Note:

V/154/sdss16 Sloan Digital Sky Surveys (SDSS), Release 16 (DR16) (Ahumada+, 2020)
ReadMe+ftp
2020ApJS..249....3A
metaV/154/sdss16

Data Release 16 (469,050,976 primary sources plus 325,277,739 secondary sources) (original column names in green) (1231051050 rows) (Note)

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Full	_r arcsec	_RAJ2000 "h:m:s"	_DEJ2000 "d:m:s"	objID	RA_ICRS deg	DE_ICRS deg	mode	class	clean	e_RA_ICRS (...)	e_DE_ICRS (...)	umag mag	gmag mag	rmag mag	imag mag	zmag mag	e_umag mag	e_gmag mag	e_rmag mag	e_imag mag	e_zmag mag	zsp	e_	f_	zph	e_	<zph>	Q	SDSS16	Sp-ID	MJD d
1	2.547	01 21 32.69620	+29 41 12.1424	1237680333258490956	020.386234	+29.686706	1	3	0	0.039	0.058	21.997	22.057	20.946	21.805	21.843	0.623	0.246	0.157	0.599	1.869				0.1605	0.1121	0.2921	3	SDSS J012132.69+294112.1		55122.2954

VI/42/out

Identification of a Constellation From Position (Roman 1987)

ReadMe+ftp

1987PASP...99..695R

Compute constellation name from Position (357 rows)

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Full	_r arcsec	_RAJ2000 "h:m:s"	_DEJ2000 "d:m:s"	RA1875 deg	DE1875 deg	Cst
1	0.2	01 21 32.812	+29 41 13.96	018.6550	+29.0313	Psc

Note:

VII/292/south DESI Legacy Imaging Surveys DR8 photometric redshifts (Duncan, 2022)
ReadMe+ftp
2022MNRAS.512.3662D
metaVII/292/south

Legacy Surveys DR8 South Photometric Redshifts catalog (1 252 523 992 sources) (1252523992 rows)

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Full	_r arcsec	_RAJ2000 "h:m:s"	_DEJ2000 "d:m:s"	id	RAJ2000 deg	DEJ2000 deg	release	brickid	objid	type	pstar	gmmcomp	zphot	e_	fclean	fqual
1	2.317	01 21 32.78245079496	+29 41 11.9945045724	8000494500001097	020.386593544979	+29.686665140159	8000	494500	1097	EXP	0.613	E4	0.106	0.076	1	1
2	8.118	01 21 32.32719434712	+29 41 19.5848154168	8000494500001215	020.384696643113	+29.688773559838	8000	494500	1215	REX	0.040	R1	0.922	0.219	1	1

J/A+A/696/A130/catalog5

Dwarf galaxy candidates detection (Yang+, 2025)

ReadMe+ftp

2025A&A...696A.130Y

All sources detected by YOLO-DG (746899 rows)

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Full	_r arcsec	_RAJ2000 "h:m:s"	_DEJ2000 "d:m:s"	RAJ2000 deg	DEJ2000 deg	release	brickid	brickname	objid	Type	Fg 3.63uJy	Fr 3.63uJy	Fz 3.63uJy
1	2.387	01 21 32.78113	+29 41 11.9260	020.386588	+29.686646	9010	494500	0202p297	4475	EXP	00002.316614	00003.743584	00005.106034

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