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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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	0.876	0975-00405100	027.045600	+11.454473			13.9	13.4	1949.888

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	0.08	0062500929	027.04550	+11.45427	0.2	13.10	0.37	1	0	028V	1982.877

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	0.34	0062500929	027.04553	+11.45434	0.2	13.11	0.37	1	0	1982.877

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

I/267/out The APM-North Catalogue (McMahon+, 2000)
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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	0.789	EO0014-0290442	027.045600	+11.454445	15.10		-1	-1.83	14.5	0.05	16.23		-1	-0.83	14.6	1.13

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	0.118	N3213002162	027.045513	+11.454256	1988.632	13.09	0.32	14.06	0.29	0	5.19	0.04

I/272/m2000

M2000: Bordeaux Carte du Ciel zone +11<Dec<+18 (Rapaport+, 2001)

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	0.210	NBEQ000162	027.04545980155	+11.45420520076	13213002162	2015.500	0	13.357503	14.118800	14.058400	13.087100		12.730500		14.155000	13.516000	15.645	13.732	13.451		13.180	13.1244	12.302	11.997	11.865			11.886	11.912	11.705	8.577		18.865	5.188	0.045	95.3
2	3.979	NBEQ028276	027.04443290000	+11.45384880000	1321300228276	2014.391	3													19.268

Full	_r arcsec	ULAS	m	RAJ2000 deg	DEJ2000 deg	Ymag mag	e_ mag	Jmag1 mag	e_ mag	Hmag mag	e_ mag	Kmag mag	e_ mag	Epoch yr	cl
1	0.096	J014810.90+112715.3	1	027.045454	+11.454269	12.500	0.001	12.232	0.001	12.018	0.001	11.910	0.001	2010.7676	-1
2	0.111	J014810.90+112715.2	2	027.045451	+11.454248	12.492	0.001	12.236	0.001	12.012	0.001	11.905	0.002	2010.6639	-1
3	4.494	J014810.89+112719.8	1	027.045387	+11.455505			19.950	0.197					2010.7676	1

Full	_r arcsec	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	0.175	027.045473710	+11.454211790	121740270454315600	503635968	60	0.0466	0.0329	55965.865740740	5	65	13.7320	0.0048	13.7743	0.0021	115000	13.4509	0.0299	13.4268	0.0097	115256	13.4110				114724	13.1799	0.0049	13.2276	0.0009	16892216	13.1244	0.0046	13.1648	0.0025	115000
2	3.979	027.044432900	+11.453848800	121740270444615108	277348352	33	0.0193	0.0193	56933.391331020	0	4					0					0	19.2682	0.0359			16781328					0					0

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	0.194	0262p121o0001961	027.0454452	+11.4542181	1.7376e+04	1.6521e+04	2.3116e+01	5.3340e+01	1.00000	1.00000	0.9992	0.9987
2	0.208	0278p121o0001824	027.0454362	+11.4542211	1.7448e+04	1.6474e+04	2.3196e+01	5.3240e+01	1.00000	1.00000	0.9992	0.9987

Full	_r arcsec	objID	RA_ICRS deg	DE_ICRS deg	mode	class	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	Q	SDSS16	MJD d
1	0.115	1237678859020075046	027.045461	+11.454234	3	6	0.070	0.075	15.656	15.807	13.436	13.281	13.666	0.008	0.013	0.002	0.002	0.008	3	SDSS J014810.91+112715.2	54768.4007
2	0.115	1237678859020075047	027.045461	+11.454234	1	6	0.070	0.075	15.645	15.799	13.438	13.284	13.649	0.008	0.013	0.002	0.002	0.008	3	SDSS J014810.91+112715.2	54768.4007
3	0.136	1237678859020075043	027.045461	+11.454227	3	6	0.070	0.075	15.642	15.808	13.436	13.282	13.664	0.008	0.013	0.002	0.002	0.008	3	SDSS J014810.91+112715.2	54768.4007
4	0.136	1237678859020075044	027.045461	+11.454227	4	6	0.070	0.075	15.631	17.133	13.444	13.285	13.647	0.008	0.024	0.002	0.002	0.008	3	SDSS J014810.91+112715.2	54768.4007
5	1.030	1237678859020075045	027.045192	+11.454308	4	3	0.396	0.396	22.936	18.605	16.802	23.572	21.749	0.757	0.051	0.021	1.558	0.974	3	SDSS J014810.84+112715.5	54768.4007