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	0.848	00 12 39.25944	-27 15 31.5432	0600-00087075	003.163581	-27.258762			17.1	17.8	1984.140

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)
ReadMe+ftp

metaI/271/out

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

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Full	_r arcsec	_RAJ2000 "h:m:s"	_DEJ2000 "d:m:s"	GSC2.2	RA(ICRS) deg	DE(ICRS) deg	Epoch yr	Rmag mag	e_ mag	Bjmag mag	e_ mag	Class	a pix	e
1	1.266	00 12 39.23352	-27 15 30.7548	S00123233664	003.163473	-27.258543	1990.792	17.69	0.42	17.44	0.42	3	3.72	0.25

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	0.957	00 12 39.25008	-27 15 31.0608	0627-0004407	003.163542	-27.258628	89	122	1972.7	0	0	5	18.45	17.37	17.50	17.87	17.20
2	5.258	00 12 39.65880	-27 15 28.5912	0627-0004410	003.165245	-27.257942	999	999	1965.8	0	0	2	21.06		20.94

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	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	0.958	00 12 39.250008	-27 15 31.06008	0627-0004417	..	003.1635417	-27.2586278	B	0.0	0.0	0.0	0.0	17.500	B			17.870	B
2	5.257	00 12 39.658656	-27 15 28.59012	0627-0004420	..	003.1652444	-27.2579417	B	0.0	0.0	0.0	0.0	20.940	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	1.265	00 12 39.23376	-27 15 30.7512	S0CB003664	003.163474	-27.258542	1990.792	17.69	17.44		17.55	3	3.72	0.25

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	fl
1	0.933	00 12 39.25032	-27 15 31.1868	003.163543	-27.258663	3.0	-6.5			18.45	17.50	17.37	17.87	17.20	5	0
2	7.605	00 12 39.28704	-27 15 23.6880	003.163696	-27.256580	-107.1	105.0			21.06	20.94				2	0

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	0.461	00 12 39.3302976000	-27 15 30.841056000	S0CB032792	003.16387624000	-27.25856696000	2001232332792	2011.280	3													19.615		19.0765
2	0.855	00 12 39.2625886148	-27 15 30.987461391	S0CB003664	003.16358208000	-27.25860775000	200123233664	2012.249	3		18.678200	17.437600	17.693900		17.550500				19.292	19.756	19.280	19.199	19.397	19.0374						15.834	15.477	12.334	8.945	20.900	20.726	3.724	0.255	161.3

Full	_r arcsec	_RAJ2000 "h:m:s"	_DEJ2000 "d:m:s"	RAJ2000 deg	DEJ2000 deg	objID	f_objID	Qual	e_RAJ2000 (...)	e_DEJ2000 arcsec	Epoch d	Ns	Nd	gmag mag	e_ mag	gKmag mag	e_ mag	gFlags	rmag mag	e_ mag	rKmag mag	e_ mag	rFlags	imag mag	e_ mag	iKmag mag	e_ mag	iFlags	zmag mag	e_ mag	zKmag mag	e_ mag	zFlags	ymag mag	e_ mag	yKmag mag	e_ mag	yFlags
1	0.461	00 12 39.33029760	-27 15 30.8410560	003.163876240	-27.258566960	75290031638270100	310456320	37	0.0826	0.0826	55878.280300930	0	3					0					0	19.6150	0.0549			4120					0	19.0765	0.1920	17.5799	0.2973	16777496
2	0.855	00 12 39.25969920	-27 15 30.9879000	003.163582080	-27.258607750	75280031635449902	444915712	53	0.0140	0.0150	56257.249502310	5	58	19.7558	0.0941	18.5918	0.0286	16892216	19.2798	0.0312	18.1319	0.0105	16892216	19.1993	0.0356	17.9181	0.0261	16892216	19.3972	0.1232	17.7719	0.0301	16892216	19.0374	0.0685	17.8067	0.0587	16892216

Full	_r arcsec	_RAJ2000 "h:m:s"	_DEJ2000 "d:m:s"	XMMOM	IDsum	ObsID	ID	UVW2r arcsec	UVM2r arcsec	UVM1r arcsec	Ur arcsec	Br arcsec	Vr arcsec	RAJ2000 deg	DEJ2000 deg	ePos arcsec	Nobs	sig(UVW2)	sig(UVM2)	sig(UVW1)	sig(U)	sig(B)	sig(V)	F(UVW2) cW/m2/nm	F(UVM2) cW/m2/nm	F(UVW1) cW/m2/nm	F(U) cW/m2/nm	F(B) cW/m2/nm	F(V) cW/m2/nm	UVW2mAB mag	UVM2mAB mag	UVW1mAB mag	UmAB mag	BmAB mag	VmAB mag	q.UVW2	q.UVM2	q.UVW1	q.U	q.B	q.V	xUVW2	xUVM2	xUVW1	xU	xB	xV
1	1.134	00 12 39.27747	-27 15 30.2980	J001239.3-271530	40	0204670101	15637			3.65				003.163656	-27.258416	0.663	1			21.21						1.06120e-16						20.2093						FFFFFFFFFFFF						1
2	2.625	00 12 39.31773	-27 15 33.9050	J001239.3-271534	40	0204670101	15638			3.65				003.163824	-27.259418	0.671	1			36.92						1.19336e-16						20.0819						FFFFFFFFFFFF						0

Full	_r arcsec	_RAJ2000 "h:m:s"	_DEJ2000 "d:m:s"	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	0.788	00 12 39.266143	-27 15 30.95289	0033m273o0010376	003.1636089	-27.2585980	4.8603e+02	5.1476e+02	8.9076e+00	3.3362e+01	1.00000	1.00000	0.9446	0.9820
2	7.145	00 12 38.786305	-27 15 31.92882	0033m273o0054128	003.1616096	-27.2588691	7.2147e+01	0.0000e+00	8.2913e+00	0.0000e+00	1.00000	0.00000	0.3405	0.0000

Full	_r arcsec	_RAJ2000 "h:m:s"	_DEJ2000 "d:m:s"	RA_ICRS deg	e_ arcsec	DE_ICRS deg	e_ arcsec	Name	nW1	mW1	nW2	mW2	RAPMdeg deg	e_ arcsec	DEPMdeg deg	e_ arcsec	pmRA arcsec/yr	e_ (...)	pmDE arcsec/yr	e_ (...)	snrW1pm	snrW2pm	FW1pm ct	e_ ct	FW2pm ct	e_ ct	W1mproPM mag	W2mproPM mag	pmQual	Dist arcsec	snrdELON	snrdELAT	chi2pmRA	chi2pmDE	ka	k1	k2	km	Sep arcsec	abf	WISEA
1	0.538	00 12 39.284960	-27 15 31.01193	003.1636873	0.0821	-27.2586144	0.0740	J001239.28-271530.9	12	12	12	12	3.1636629	0.0822	-27.2586038	0.0743	0.00080	0.0258	-0.04570	0.0255	41.6	18.9	4.8e+02	1e+01	4.7e+02	3e+01	15.808	15.812	2N000	0.234	1.124	0.518	4.97e+00	5.93e-01	3	3	3	3	0.242	00	WISEA
2	5.964	00 12 38.874656	-27 15 31.84857	003.1619777	0.3416	-27.2588468	0.3139	J001238.87-271531.8	6	12	1	12	3.1618927	0.3676	-27.2588545	0.3349	-0.38021	0.1254	0.02699	0.1247	10.0	5.3	7.9e+01	8e+00	1.3e+02	3e+01	17.760	17.196	1N000	0.773	1.002	0.100	3.64e+01	3.35e+00	3	3	3	3		00	WISEA

Full	_r arcsec	_RAJ2000 "h:m:s"	_DEJ2000 "d:m:s"	XMMOM	IDsum	ObsID	ID	UVW2r arcsec	UVM2r arcsec	UVM1r arcsec	Ur arcsec	Br arcsec	Vr arcsec	RAJ2000 deg	DEJ2000 deg	ePos arcsec	Nobs	sig(UVW2)	sig(UVM2)	sig(UVW1)	sig(U)	sig(B)	sig(V)	F(UVW2) cW/m2/nm	F(UVM2) cW/m2/nm	F(UVW1) cW/m2/nm	F(U) cW/m2/nm	F(B) cW/m2/nm	F(V) cW/m2/nm	UVW2mAB mag	UVM2mAB mag	UVW1mAB mag	UmAB mag	BmAB mag	VmAB mag	q.UVW2	q.UVM2	q.UVW1	q.U	q.B	q.V	xUVW2	xUVM2	xUVW1	xU	xB	xV
1	0.970	00 12 39.29473	-27 15 30.3700	J001239.3-271530	54	0204670101	18603			3.911348				003.163728	-27.258436	0.613549	1			21.21						1.06402e-16						20.2064						FFFFFFFFFFFFF						1
2	2.943	00 12 39.37947	-27 15 34.1140	J001239.4-271534	54	0204670101	18604			3.911348				003.164081	-27.259476	0.629110	1			35.60						1.13878e-16						20.1327						FFFFFFFFFFFFF						0