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	0.225	1350-08240519	198.386048	+51.258403			10.8	10.0	1953.121

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	0.11	0346200170	198.38600	+51.25832	0.3	12.75	0.40	1	3	00XN	1983.346

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	0.25	0346200170	198.38589	+51.25833	0.3	12.76	0.40	1	3	1983.346

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

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

The Full Northern APM Catalogue (166466987 rows)

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Full	_r arcsec	APM-ID	RAJ2000 deg	DEJ2000 deg	rmag mag	l_	rClass	rStel	rDiam arcsec	rEll	bmag mag	l_	bClass	bStel	bDiam arcsec	b-r mag	Mflag
1	2.033	EO0675-0233324	198.386328	+51.258875	11.18		-1	0.73	70.3	0.36	12.86		1	4.57	62.5	1.67

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	0.280	N1300200156	198.385985	+51.258273	1991.280	8.99	0.00	9.96	0.41	0	28.51	0.45

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	pmRA mas/yr	pmDE mas/yr	Ndet	B1mag mag	R1mag mag	B2mag mag	R2mag mag	Imag mag
1	0.201	1412-0233143	198.385934	+51.258392	204	148	1976.9	0	0	5	11.06	9.59	9.79	8.73	8.95
2	1.285	1412-0233142	198.385620	+51.258620	929	302	1981.5	-186	144	3		17.27	9.64		8.99
3	2.933	1412-0233141	198.385259	+51.259023	649	534	1979.8	-356	268	3		18.90	9.63		8.75

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
1	0.202	1412-0237473	..	198.3859333	+51.2583917	B	0.0	0.0	0.0	0.0	9.790	B			8.730	B
2	1.284	1412-0237472	YM	198.3856194	+51.2586194	B	-186.0	34.0	144.0	11.0	14.450	Y	12.490	Y	17.270	e	12.464	11.955	11.625
3	2.932	1412-0237471	..	198.3852583	+51.2590222	B	-356.0	23.0	268.0	19.0	9.630	B			18.900	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)
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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	0.196	N5K0000156	198.386068	+51.258322	1991.280	8.99	9.96	11.01	9.11	3	28.51	0.45

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	0.151	131332.6+511530	198.386034	+51.258384	3.54	9.82	12.750	14.032	12.465	11.956	11.626	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	ID	k	RAJ2000 deg	e_ arcsec	DEJ2000 deg	e_ arcsec	Bmag mag	e_ mag	Epoch yr	FWHM 2.17pix	cI	f.mag mag	pmRA mas/yr	pmDE mas/yr	B4mag mag	Vmag mag	rmag mag	imag mag
1	0.577	145579	7	198.3857992	0.199	+51.2584545	0.312	15.13	0.26	1984.961	5.95	21.01	14.818	3.8	-2.1	15.271	14.327	13.952	13.372
2	1.300	145580	2	198.3864329	0.264	+51.2581159	0.289	14.17	0.53	1985.225	8.27	24.16

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	0.015	N5K0031415	198.38599122021	+51.25834663089	1130020031415	2015.500	0	16.174980									16.048	16.010	15.522	15.163	14.609	14.4132	12.465	11.956	11.626			10.732	10.825	10.154	8.871
2	0.190	N5K0000156	198.38606262207	+51.25831985474	11300200156	1991.280	0		10.525900	9.955590	8.992230		9.114250										11.213	10.573	10.285							20.097	19.310	28.507	0.447	157.1

Full	_r arcsec	RAJ2000 deg	e_ 10-5deg	DEJ2000 deg	e_ 10-5deg	mag mag	e_ mag	emag mag	Nobs	N1	Ndet	flag
1	4.17	198.38536	52	+51.25944	63	13.446	0.051	0.044	233	348	348	0
2	4.25	198.38519	55	+51.25942	53	13.414	0.043	0.040	251	325	325	0

Full	_r arcsec	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	0.109	371854997	198.38602400826	+51.25837408711		707-051378	13133265+5115301	1556897474111020032	STAR	tmgaia2	-4.766	4.620	-6.377	4.621	hsoy											GIANT																	79.47388915039	71.66076974752	198.38599122021	51.25834663089	2.11407378490	2.45572715596	Sloan
2	0.332	10001711950	198.38613900000	+51.25833500000			13133267+5115300		EXTENDED																																		0.00000000000	0.00000000000	0.00000000000	0.00000000000	0.00000000000	0.00000000000	Sloan

Full	_r arcsec	mode	q_	cl	SDSS9	m_	Im	RA_ICRS deg	DE_ICRS deg	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	0.020	1	+	3	J131332.63+511530.0		Im	198.385989	+51.258355	2003.3241	3	16.048	0.007	14.113	0.002	13.255	0.002	12.840	0.002	12.531	0.002	0.02512
2	0.038	2		3	J131332.64+511530.0		Im	198.386010	+51.258347	2002.0355	3	16.068	0.007	14.098	0.002	13.269	0.002	12.842	0.002	12.540	0.002

Full	_r arcsec	RA_ICRS deg	DE_ICRS deg	mode	q_	class	SDSS12	m_	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	0.018	198.385990	+51.258355	1	+	3	J131332.63+511530.0	*	2003.3242	3	16.048	0.007	14.113	0.002	13.255	0.002	12.840	0.002	12.531	0.002	0.02512	0.0142	0.0080	0.0306
2	0.038	198.386010	+51.258347	2		3	J131332.64+511530.0	*	2002.0356	3	16.068	0.007	14.098	0.002	13.269	0.002	12.842	0.002	12.540	0.002

Full	_r arcsec	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	0.016	1237662301356425275	198.385994	+51.258355	4	3	0	0.002	0.001	15.867	14.013	13.165	12.737	12.420	0.007	0.002	0.002	0.002	0.002							3	SDSS J131332.63+511530.0		52758.1395
2	0.018	1237662301356425277	198.385990	+51.258355	3	3	0	0.002	0.001	15.909	14.026	13.183	12.762	12.460	0.007	0.002	0.002	0.002	0.002							3	SDSS J131332.63+511530.0		52758.1395
3	0.018	1237662301356425278	198.385990	+51.258355	1	3	1	0.002	0.001	16.048	14.114	13.262	12.839	12.543	0.007	0.002	0.002	0.002	0.002	0.02512	0.00001	0	0.0142	0.0080	0.0306	3	SDSS J131332.63+511530.0	1667-53430-0263	52758.1395
4	0.037	1237657856078053437	198.386003	+51.258342	4	3	0	0.002	0.002	15.869	13.978	13.162	12.728	12.425	0.007	0.002	0.002	0.002	0.002							3	SDSS J131332.64+511530.0		52287.4749
5	0.038	1237657856078053439	198.386010	+51.258347	3	3	0	0.002	0.002	15.927	14.007	13.195	12.765	12.467	0.007	0.002	0.002	0.002	0.002							3	SDSS J131332.64+511530.0		52287.4749
6	0.038	1237657856078053440	198.386010	+51.258347	2	3	0	0.002	0.002	16.068	14.098	13.273	12.843	12.554	0.007	0.002	0.002	0.002	0.002							3	SDSS J131332.64+511530.0		52287.4749

Full	_r arcsec	objID	RAJ2000 deg	DEJ2000 deg	Ell	S	Sloan
1	0.31	1237662301356425278	198.38601	+51.25844	0.4586	0.5414	Sloan
2	0.31	1237657856078053440	198.38602	+51.25844	0.4642	0.5358	Sloan