VizieR

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The 3 columns in color are computed by VizieR, and are not part of the original data.

Note: USNO-A1.0 contains 488,006,860 sources, and was compiled from the blue/red overlaps of the detection lists generated from scans of POSS-I O and E plates (>=-30°) and SRC-J and ESO-R plates (<=-35°). USNO-A1.0 was created by Dave Monet () and collaborators at Flagstaff Station, U.S. Naval Observatory; it is superseded by the new PMM-USNO-A2.0 version.
The VizieR search engine uses an on-line compressed version (3.4Gbytes) which was generated at CDS.

I/243/out The PMM USNO-A1.0 Catalogue (Monet 1997)
ReadMe+ftp

metaI/243/out

The Full Catalogue (488006860 rows) (Note)

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Full	_r arcsec	_RAJ2000 "h:m:s"	_DEJ2000 "d:m:s"	USNO-A1.0	RA_ICRS deg	DE_ICRS deg	GSCflag	Mflag	Bmag mag	Rmag mag	Epoch yr
1	7.062	04 31 21.32618	-23 16 31.1629	0600-00785978	067.838859	-23.275323	G		15.9	15.1	1954.008

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	6.881	04 31 20.99087	-23 16 26.1912	0600-01841318	067.837462	-23.273942			19.0	17.9	1983.331
2	7.430	04 31 21.34272	-23 16 30.5724	0600-01841383	067.838928	-23.275159			13.5	14.5	1983.331

Note: The Guide Star Catalog has been constructed to support the operational need of the Hubble Space Telescope. It contains over 25 million positions for about 19 million objects, of which more than 15 million are classified as stars. The version 1.2 is a new astrometric reduction which results in absolute position errors about 0.3-0.4 arcsec. (see GSC pages at URL http://www-gsss.stsci.edu/gsc/gsc.html)

I/254/out The HST Guide Star Catalog, Version 1.2 (Lasker+ 1996)
ReadMe+ftp
2001AJ....121.1752M
metaI/254/out

The Full Catalogue (25241730 positions) (25241730 rows)

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Full	_r arcsec	_RAJ2000 "h:m:s"	_DEJ2000 "d:m:s"	GSC	RAJ2000 deg	DEJ2000 deg	PosErr arcsec	Pmag mag	e_ mag	n_	Class	Plate	Epoch yr
1	7.24	04 31 21.3336	-23 16 30.828	0646401986	067.83889	-23.27523	0.4	14.96	0.40	0	3	049X	1980.859

Note: The GSC-ACT (or GSC1.3) is a recalibration of the GSC1.1, the catalogue constructed to support the operational need of the Hubble Space Telescope, with the ACT, the combination of the Astrographic Catalogue and the Tycho catalogue derived from the Hipparcos mission; see http://www.projectpluto.com/gsc_act.htm for more details about this recalibration.

I/255/out The HST Guide Star Catalog, Version GSC-ACT (Lasker+ 1996-99)
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metaI/255/out

The GSC-ACT Full Catalogue (25241730 positions) (25241730 rows)

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Full	_r arcsec	_RAJ2000 "h:m:s"	_DEJ2000 "d:m:s"	GSC	RAJ2000 deg	DEJ2000 deg	PosErr arcsec	Pmag mag	e_ mag	n_	Class	Epoch yr
1	7.28	04 31 21.3384	-23 16 30.936	0646401986	067.83891	-23.27526	0.4	14.98	0.40	0	3	1980.859

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	3.866	04 31 20.94286	-23 16 29.1721	0667-0048947	067.837262	-23.274770	298	999	1977.8	0	0	2	18.94				18.48
2	6.672	04 31 20.97599	-23 16 26.3422	0667-0048948	067.837400	-23.273984	417	144	1967.4	0	0	2		18.81	18.87
3	7.396	04 31 21.34008	-23 16 30.5724	0667-0048949	067.838917	-23.275159	70	81	1977.3	0	0	5	15.95	14.66	13.31	14.19	15.05
4	8.607	04 31 20.38342	-23 16 38.7624	0667-0048944	067.834931	-23.277434	693	679	1962.9	-366	-216	3	18.96	18.77	20.11

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_	Rmag mag	r_	Jmag mag	Hmag mag	Kmag mag
1	3.867	04 31 20.942664	-23 16 29.16984	0667-0049261	067.8372611	-23.2747694	..	B	0.0	0.0	0.0	0.0	18.940	o
2	6.674	04 31 20.976000	-23 16 26.33988	0667-0049262	067.8374000	-23.2739833	..	B	0.0	0.0	0.0	0.0	18.870	B	18.810	e
3	7.395	04 31 21.340008	-23 16 30.56988	0667-0049263	067.8389167	-23.2751583	YM	B	0.0	0.0	0.0	0.0	18.350	Y	14.190	B	15.564	15.054	14.461
4	8.606	04 31 20.383344	-23 16 38.75988	0667-0049258	067.8349306	-23.2774333	..	B	-366.0	17.0	-216.0	17.0	20.110	B	18.770	e

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	7.241	04 31 21.33000	-23 16 30.6480	S26F000228	067.838875	-23.275180	1995.825	15.00	14.24		15.19	3	7.23	0.08

Note: The limiting magnitude is about 15.2 in the GSC photometric system.

I/312/sample PPMX Catalog of positions and proper motions (Roeser+ 2008)
ReadMe+ftp
2008A&A...488..401R
metaI/312/sample

The PPMX Catalog (Position and Proper Motions eXtended) (18088919 rows)

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Full	_r arcsec	_RAJ2000 "h:m:s"	_DEJ2000 "d:m:s"	PPMX	RAJ2000 deg	DEJ2000 deg	pmRA mas/yr	pmDE mas/yr	Cmag mag	Rmag mag	Jmag mag	Hmag mag	Kmag mag	Nobs	P	sub
1	7.273	04 31 21.34129	-23 16 31.1269	043121.3-231631	067.838922	-23.275313	0.00	-15.25	14.960	17.271	15.565	15.055	14.461	2		O

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 "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
1	4.657	04 31 20.92896	-23 16 28.2503	067.837204	-23.274514	-4.7	23.5			18.94				18.48	2
2	6.336	04 31 21.01152	-23 16 26.8894	067.837548	-23.274136	18.4	-11.4				18.87	18.81			2
3	7.289	04 31 21.34054	-23 16 31.0080	067.838919	-23.275280	-1.5	-7.2	15.565	14.461	15.95	13.31	14.66	14.19	15.05	6
4	8.805	04 31 20.40482	-23 16 39.3095	067.835020	-23.277586	-357.5	-227.3			18.96	20.11	18.77			3

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	6.336	04 31 21.01152	-23 16 26.8898	067.837548	-23.274136	0.163	0.163	18.870	0.400	18.810	0.400	18.812	0.400	18.684	0.500	1967.4700	1967.4700	18.4	12.1	-11.4	12.1
2	7.289	04 31 21.34054	-23 16 31.0080	067.838919	-23.275280	0.067	0.067	14.235	0.300	14.996	0.300	14.752	0.400	15.264	0.500	1989.6200	1989.6200	-1.5	4.0	-7.2	4.0
3	8.805	04 31 20.40482	-23 16 39.3100	067.835020	-23.277586	0.133	0.133	20.110	0.400	18.770	0.400	19.010	0.400	17.949	0.500	1962.9800	1962.9800	-357.5	10.5	-227.3	10.5

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	7.240	04 31 21.3282870415	-23 16 30.638814806	S26F000228	067.83887481689	-23.27518081665	20230013228	1995.820	0		16.624100	14.235500	14.996700		15.191200										14.384	14.013	13.290							19.543	19.223	7.225	0.082	35.4
2	7.367	04 31 21.3474360000	-23 16 31.072692000	S26F012804	067.83894765000	-23.27529797000	2023001312804	2013.601	3											18.481	18.296	17.756	17.651	17.2628	15.565	15.055	14.461			13.645	13.346	9.588	7.678

Full	_r arcsec	_RAJ2000 "h:m:s"	_DEJ2000 "d:m:s"	TIC	RAJ2000 deg	DEJ2000 deg	TYC	UCAC4	2MASS	GAIA	S/G	Ref	pmRA mas/yr	e_ (...)	pmDE mas/yr	e_ (...)	r_pm	Teff K	s_ K	logg [cm/s2]	s_ (...)	[M/H] [Sun]	e_ (...)	Rad Rsun	s_ Rsun	Mass Msun	s_ Msun	LClass	Dist pc	s_ pc	Ncont	Rcont	e_Mass Msun	E_Mass Msun	e_Rad Rsun	E_Rad Rsun	e_logg [cm/s2]	E_logg [cm/s2]	e_Dist pc	E_Dist pc	r_Dist	e_Teff K	E_Teff K	r_Teff	e_RAJ2000 mas	e_DEJ2000 mas	RAOdeg deg	DEOdeg deg	e_RAOdeg mas	e_DEOdeg mas	Sloan
1	7.271	04 31 21.3405600000	-23 16 31.090800000	139760601	067.83891900000	-23.27530300000			04312134-2316310		STAR	2mass																																	80.00000000000	80.00000000000	67.83891900000	-23.27530300000	80.00000000000	80.00000000000	Sloan
2	7.280	04 31 21.3355200000	-23 16 30.774000000	10000421339	067.83889800000	-23.27521500000			04312133-2316307		EXTENDED																																		0.00000000000	0.00000000000	0.00000000000	0.00000000000	0.00000000000	0.00000000000	Sloan

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	5.544	04 31 20.92991840232	-23 16 38.0402902056	8000200253002601	067.837207993343	-23.277233413946	8000	200253	2601	EXP	0.092	E0	0.472	0.308	0	0
2	6.735	04 31 21.29103058608	-23 16 30.6234293196	8000200253002602	067.838712627442	-23.275173174811	8000	200253	2602	DEV	0.002	D7	0.254	0.094	0	0
3	7.481	04 31 21.35665945920	-23 16 31.1228043600	8000200253002597	067.838986081080	-23.275311890100	8000	200253	2597	COMP	0.012	C1	0.065	0.015	1	1
4	7.749	04 31 20.92937598984	-23 16 25.0689398880	8000200253002599	067.837205733291	-23.273630261080	8000	200253	2599	EXP	0.291	E9	0.201	0.053	0	0
5	9.157	04 31 21.21051448848	-23 16 40.1513792556	8000200253002600	067.838377143702	-23.277819827571	8000	200253	2600	EXP	0.043	E5	0.733	0.159	0	0

Full	_r arcsec	_RAJ2000 "h:m:s"	_DEJ2000 "d:m:s"	dr8Id	RAJ2000 deg	DEJ2000 deg	SFSM	SFFDF	SFAF	DEOYes	DEONo	SAYes	SANo	BS	BW	BNo	BSD	BSL	BSM	BSS	BSNo	RR	RIB	RCS	EOBB	EOBNo	EOBR	SWT	SWM	SWL	SAC1	SAC2	SAC3	SAC4	SAC4+	SACCT	MNo	MMiD	MMaD	MM	Version
1	6.736	04 31 21.29113	-23 16 30.6230	200253_2602	067.838713	-23.275173	0.07	0.89	0.04	0.02	0.98	0.96	0.04	0.05	0.20	0.75	0.01	0.06	0.60	0.32	0.01							0.67	0.25	0.07	0.06	0.41	0.19	0.07	0.06	0.21	0.70	0.17	0.13	0.01	1.0.0
2	7.481	04 31 21.35667	-23 16 31.1230	200253_2597	067.838986	-23.275312	0.06	0.89	0.04	0.02	0.98	0.97	0.03	0.05	0.17	0.77	0.01	0.05	0.63	0.30	0.01							0.73	0.22	0.05	0.06	0.31	0.27	0.09	0.06	0.21	0.72	0.16	0.10	0.01	1.0.0