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	0.144	0675-36674279	327.778570	-20.430114			14.2	13.7	1983.078

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)
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2001AJ....121.1752M
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The Full Catalogue (25241730 positions) (25241730 rows)

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Full	_r arcsec	GSC	RAJ2000 deg	DEJ2000 deg	PosErr arcsec	Pmag mag	e_ mag	n_	Class	Plate	Epoch yr
1	0.27	0637101049	327.77849	-20.43006	0.3	14.56	0.37	0	0	0171	1980.529

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

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Full	_r arcsec	GSC	RAJ2000 deg	DEJ2000 deg	PosErr arcsec	Pmag mag	e_ mag	n_	Class	Epoch yr
1	0.04	0637101049	327.77858	-20.43008	0.3	14.57	0.37	0	0	1980.529

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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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	0.021	S331201154	327.778565	-20.430069	1995.425	13.71	0.16	14.62	0.26	0	5.94	0.07

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)
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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	0.089	0695-0853111	327.778542	-20.430073	54	99	1975.9	4	2	5	14.85	13.38	14.96	13.67	12.65

Note: More recent versions available: UCAC3 (I/315) and UCAC4 (I/322); see also the UCAC home page at http://ad.usno.navy.mil/ucac/

I/289/out UCAC2 Catalogue (Zacharias+ 2004)
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2004AJ....127.3043Z
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The Second U.S. Naval Observatory CCD Astrograph Catalog (48330571 rows)

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Full	_r arcsec	2UCAC	RAJ2000 deg	e_ mas	DEJ2000 deg	e_ mas	UCmag mag	No	Nc	pmRA mas/yr	pmDE mas/yr	2Mkey	Jmag mag	Kmag mag
1	0.014	24011385	327.7785721	17	-20.4300720	15	13.99	4	2	12.3	-4.9	10178330	12.479	11.962

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	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	0.014	0695-0924904	YM	327.7785719	-20.4300719	C	12.2	7.9	-4.9	7.9	14.290	Y	13.690	Y	13.670	B	12.479	12.032	11.962

Note: Zone -30/+50deg

I/304/out Carlsberg Meridian Catalog 14 (CMC14) (CMC, 2006)
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metaI/304/out

The full CMC-14 catalog (around 95.85million sources in the region -30 to +50°) (95858475 rows)

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Full	_r arcsec	CMC14	f_	RAICRS deg	DEICRS deg	r'mag mag	Nt	Jmag mag	Hmag mag	Ksmag mag
1	0.074	215106.8-202548		327.778588	-20.430083	13.810	2	12.479	12.032	11.962

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	0.024	SC5H000054	327.778565	-20.430068	1995.425	13.71	14.62		13.09	0	5.94	0.07

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)
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2008A&A...488..401R
metaI/312/sample

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

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Full	_r arcsec	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	0.026	215106.8-202548	327.778574	-20.430069	9.67	-13.04	14.560	13.888	12.479	12.032	11.962	4		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	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	0.102	SC5H000054	327.77859522251	-20.43008697160	2331201154	2015.500	0	13.808862	14.489100	14.623500	13.712500		13.092000		14.670000	13.985000	15.681	14.260	13.823	13.589	13.500	13.4450	12.514	12.032	12.005		12.776	11.907	11.908	11.568	8.898			5.938	0.072	36.9
2	0.325	SC5H021147	327.77861034800	-20.42999260010	2331201121147	2012.000	3											14.330	13.792				12.567		11.964		13.126

Full	_r arcsec	recno	RAJ2000 deg	DEJ2000 deg	e_RAJ2000 (...)	e_DEJ2000 arcsec	Field	nobs	mobs	B-V mag	e_ mag	Vmag mag	e_ mag	Bmag mag	e_ mag	g'mag mag	e_ mag	r'mag mag	e_ mag	i'mag mag	e_ mag
1	0.094	60476322	327.778571	-20.430100	0.522	0.267	20131048	4	15	0.686	0.032	13.985	0.023	14.670	0.021	14.346	0.017	13.768	0.012	13.518	0.056
2	0.344	60476321	327.778469	-20.430053	1.360	0.438	20161172	3	12	0.690	0.030	14.028	0.030	14.718	0.000	14.336	0.016	13.857	0.036	13.766	0.197

Full	_r arcsec	SrcID	RAJ2000 deg	DEJ2000 deg	FrameID	PriOrSec	Y-Jpnt mag	J-Hpnt mag	H-Kspnt mag	J-Kspnt mag	Y-Jext mag	J-Hext mag	H-Ksext mag	J-Ksext mag	Mclass	Ypmag mag	Yap3 mag	Yapc3 mag	Yavgap3	Yperrbits	Jpmag mag	Jap3 mag	Japc3 mag	Javgap3	Jperrbits	Hpmag mag	Hap3 mag	Hapc3 mag	Havgap3	Hperrbits	Kspmag mag	Ksap3 mag	Ksapc3 mag	Ksavgap3	Ksperrbits
1	0.227	473280244735	327.778612	-20.430026	472446409090		0.2617			0.5096	0.3396			0.6479	-1	12.7511	12.7758	13.4122	69.101	128	12.5030	12.5141	13.0726	66.223	128					0	12.0614	12.0046	12.4247	69.159	128
2	0.323	473074349119	327.778610	-20.429993	472446407405		0.5584			0.6030	0.6255			0.6872	-1	13.1189	13.1259	13.5204	73.159	4224	12.5457	12.5675	12.8950	77.343	4224					0	11.9586	11.9645	12.2078	95.373	4096

Full	_r arcsec	objID	RAJ2000 deg	DEJ2000 deg	FW1 309.05nJy	FW2 167.66nJy	e_FW1 309.05nJy	e_FW2 167.66nJy	q_W1	q_W2	fFW1	fFW2
1	0.130	3280m197o0000617	327.7785980	-20.4300507	1.7139e+04	1.6750e+04	2.3280e+01	5.5316e+01	1.00000	1.00000	0.9998	0.9999
2	0.146	3277m213o0023536	327.7786114	-20.4300697	1.7154e+04	1.6794e+04	2.3215e+01	5.5392e+01	1.00000	1.00000	0.9998	0.9999

Full	_r arcsec	SrcID	RAJ2000 deg	DEJ2000 deg	Name	PriOrSec	Y-Jpnt mag	J-Hpnt mag	H-Kspnt mag	J-Kspnt mag	Y-Jext mag	J-Hext mag	H-Ksext mag	J-Ksext mag	Mclass	AY mag	AJ mag	AH mag	AKs mag	Ypmag mag	Yap3 mag	Yapc3	Yavgap3	Yperrbits	Jpmag mag	Jap3 mag	Japc3 mag	Javgap3	Jperrbits	Hpmag mag	Hap3 mag	Hapc3 mag	Havgap3	Hperrbits	Kspmag mag	Ksap3 mag	Ksapc3 mag	Ksavgap3	Ksperrbits
1	0.227	473225545414	327.778612	-20.430026	VHS J215106.86-202548.0	472446408985	0.2617			0.5096	0.3396			0.6479	-1	0.0430	0.0305	0.0194	0.0127	12.7511	12.7758	13.4122	69.101	128	12.5030	12.5141	13.0726	66.223	128					0	12.0614	12.0046	12.4247	69.159	128
2	0.323	473489056538	327.778610	-20.429993	VHS J215106.86-202547.9	472446408985	0.5584			0.6030	0.6255			0.6872	-1	0.0430	0.0305	0.0194	0.0127	13.1189	13.1259	13.5204	73.159	4224	12.5457	12.5675	12.8950	77.343	4224					0	11.9586	11.9645	12.2078	95.373	4096