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)
ReadMe+ftp

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	0.652	1200-00024666	000.715559	+35.759306			13.3	12.0	1954.758

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
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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	0.49	0227101354	000.71559	+35.75926	0.3	11.88	0.37	1	3	037N	1982.801
2	0.63	0227101354	000.71571	+35.75925	0.2	12.00	0.34	1	3	036Q	1982.803

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)
ReadMe+ftp

metaI/255/out

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	0.54	0227101354	000.71566	+35.75925	0.3	11.89	0.39	1	3	1982.801
2	0.79	0227101354	000.71575	+35.75928	0.2	12.02	0.34	1	3	1982.803

I/259/tyc2

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	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	2.983	EO0405-0311685	000.715587	+35.759953	12.36		2	1.69	29.0	0.44	14.23		1	4.81	19.9	1.87	*
2	3.113	EO1247-0270000	000.715600	+35.759989	11.26		2	4.21	28.9	0.45	13.25		2	2.71	33.7	1.99

Full	_r arcsec	GSC2.3	RAJ2000 deg	DEJ2000 deg	Epoch yr	Fmag mag	jmag mag	Vmag mag	Nmag mag	Class	a pix	e
1	0.297	NBGY000543	000.715469	+35.759090	2000.000			12.35		0
2	2.464	NBGY015046	000.716241	+35.759530	1995.820				12.32	3	6.73	0.28

Full	_r arcsec	GSC2	RA_ICRS deg	DE_ICRS deg	objID	Epoch yr	Class	Gmag mag	Npgmag mag	Bmag mag	Vmag mag	umag mag	imag mag	ymag mag	Jmag mag	Hmag mag	Ksmag mag	W1mag mag	W2mag mag	W3mag mag	W4mag mag	NUVmag mag	a pix	e pix	PA pix
1	0.335	NBGY000543	000.71567579580	+35.75912171404	13220102543	2015.500	0	12.389160		13.081000	12.473000	14.546		12.2249	11.355	11.096	11.048	11.032	11.051	11.088	8.321	17.069
2	2.461	NBGY015046	000.71624058485	+35.75952911377	1322010215046	1995.820	0		12.324600														6.728	0.285	156.1
3	2.838	NBGY044154	000.71464592000	+35.75886050000	1322010244154	2012.348	3						18.194

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	0.336	000.715676350	+35.759123610	150910007156401525	637853696	76	0.0712	0.0927	55786.109050930	4	66	12.4370				98404	12.1890				100	12.1400				100	12.1590				65636	12.2249	0.0071	12.2252	0.0044	16892280
2	2.838	000.714645920	+35.758860500	150910007145451478	817364992	97	0.0128	0.0128	55981.347893520	0	3					16416					0	18.1941	0.0106	17.1778	0.0100	16781336					16416					16416

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	0.188	1		6	J000251.75+354532.8		Im	000.715625	+35.759118	2009.8787	3	14.559	0.004	14.002	0.009	12.486	0.001	13.742	0.010	13.046	0.004
2	0.208	2		6	J000251.75+354532.7		Im	000.715629	+35.759107	2008.8196	2	14.206	0.003	13.732	0.003	12.486	0.001	12.877	0.004	12.917	0.004

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	0.188	000.715625	+35.759119	1		6	J000251.75+354532.8	*	2009.8788	3	14.559	0.004	14.002	0.009	12.486	0.001	13.742	0.010	13.046	0.004
2	0.211	000.715630	+35.759107	2		6	J000251.75+354532.7	*	2008.8197	2	14.206	0.003	13.732	0.003	12.486	0.001	12.877	0.004	12.917	0.004

Full	_r arcsec	sp	ObsID	Target	PlanId	RAJ2000 deg	DEJ2000 deg	snru	snrg	snrr	snri	snrz	z	magType
1	0.021	plot	361615017	J000251.73+354532.8	HD000453N343935V01	000.7155620000	+35.7591190000	2.43	10.35	19.29	21.48	12.41	-0.0000582200	gri
2	0.080	plot	87610155	J000251.73+354532.7	VB002N36V3	000.7155760000	+35.7591060000	29.62	102.53	88.34	103.53	86.63	-0.0000955328	brijhk

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	0.114	1237680514163998789	000.715595	+35.759109	4	6	0.065	0.058	14.146	13.007	13.414	15.061	12.411	0.003	0.003	0.007	0.012	0.004	3	SDSS J000251.74+354532.7	55152.2984
2	0.161	1237680505050038481	000.715614	+35.759112	4	6	0.073	0.065	14.659	14.820	12.476	13.713	13.163	0.004	0.008	0.001	0.008	0.005	3	SDSS J000251.74+354532.8	55152.2108
3	0.168	1237680514163998791	000.715616	+35.759111	3	6	0.065	0.058	14.626	13.034	13.582	14.556	12.638	0.004	0.002	0.007	0.003	0.005	3	SDSS J000251.74+354532.7	55152.2984
4	0.169	1237680509874274370	000.715619	+35.759124	4	6	0.063	0.063	14.312	12.945	12.529	12.313	12.826	0.004	0.004	0.003	0.002	0.004	3	SDSS J000251.74+354532.8	55152.2663
5	0.183	1237680514163998792	000.715622	+35.759112	4	6	0.065	0.058	14.431	13.081	13.693	15.189	12.622	0.004	0.002	0.008	0.012	0.004	3	SDSS J000251.74+354532.8	55152.2984
6	0.188	1237680505050038484	000.715625	+35.759119	1	6	0.073	0.065	14.546	14.001	12.482	13.734	13.059	0.004	0.009	0.001	0.010	0.004	3	SDSS J000251.75+354532.8	55152.2108
7	0.190	1237680505050038483	000.715626	+35.759119	3	3	0.073	0.065	14.885	14.201	13.966	14.691	13.252	0.004	0.008	0.002	0.003	0.004	3	SDSS J000251.75+354532.8	55152.2108
8	0.191	1237678808523603984	000.715624	+35.759110	4	6	0.094	0.069	14.355	14.205	12.480	12.968	13.033	0.004	0.004	0.001	0.004	0.004	2	SDSS J000251.74+354532.7	54765.3652
9	0.211	1237678808523603987	000.715630	+35.759107	2	6	0.094	0.069	14.199	13.736	12.485	12.877	12.922	0.003	0.003	0.001	0.004	0.004	2	SDSS J000251.75+354532.7	54765.3652
10	0.213	1237678808523538585	000.715634	+35.759122	4	6	0.092	0.065	14.201	13.761	12.487	12.890	12.925	0.003	0.003	0.001	0.005	0.004	2	SDSS J000251.75+354532.8	54765.3648
11	0.216	1237678808523538582	000.715635	+35.759121	4	6	0.092	0.065	14.240	14.559	12.531	13.039	12.825	0.003	0.004	0.001	0.004	0.004	2	SDSS J000251.75+354532.8	54765.3648
12	0.218	1237678808523603986	000.715633	+35.759108	3	3	0.094	0.069	14.479	14.048	13.651	12.816	13.018	0.004	0.003	0.002	0.004	0.004	2	SDSS J000251.75+354532.7	54765.3652
13	0.222	1237678808523538584	000.715637	+35.759122	3	3	0.092	0.065	14.477	14.029	13.658	12.826	12.997	0.004	0.003	0.002	0.005	0.004	2	SDSS J000251.75+354532.8	54765.3648
14	0.247	1237680509874274373	000.715626	+35.759169	4	6	0.063	0.063	15.416	18.077	17.365	17.299	14.774	0.007	0.043	0.037	0.036	0.014	3	SDSS J000251.75+354533.0	55152.2663
15	0.259	1237680509874274372	000.715618	+35.759180	3	6	0.063	0.063	14.768	13.245	12.652	14.417	13.075	0.004	0.003	0.003	0.003	0.005	3	SDSS J000251.74+354533.0	55152.2663