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.

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	1.502	00 46 24.73272	+10 20 33.4608	0975-00163584	011.603053	+10.342628			15.6	14.9	1954.893

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Full	_r arcsec	_RAJ2000 "h:m:s"	_DEJ2000 "d:m:s"	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	1.722	00 46 24.75936	+10 20 33.8820	EO1274-0277374	011.603164	+10.342745	14.51		1	26.59	23.7	0.65	15.85		1	26.47	24.1	1.34
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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.

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	1.443	00 46 24.73512	+10 20 33.6624	N3203000432	011.603063	+10.342684	1990.784	14.20	0.43	14.88	0.42	3	8.98	0.66

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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	1.343	00 46 24.71952	+10 20 33.4500	1003-0006484	011.602998	+10.342625	104	152	1977.8	0	0	5	15.73	14.89	15.50	14.11	13.38
2	7.454	00 46 24.90936	+10 20 40.5708	1003-0006485	011.603789	+10.344603	536	832	1968.1	0	0	3	19.13	19.40			18.03
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%3cEM%3e2&%3cFONT%20COLOR=%27#CD5B45%27>%207.454&%3cFONT%20COLOR=%27#CD5B45%27>00%2046%2024.90936&%3cFONT%20COLOR=%27#CD5B45%27>%2b10%2020%2040.5708&1003-0006485&011.603789&%2b10.344603&536&832&1968.1&%20%20%20%20%200&%20%20%20%20%200&3&19.13&19.40&%20&%20&18.03%3cBR%3e">\Ahref='VizieR-5?-ref=VIZ663ccbdf368825&-out.add=.&-source=I/284/out&USNO-B1.0===1003-0006486&-out.orig=o' class='full'3 8.87300 46 24.91608+10 20 26.30041003-0006486011.603817+10.340639 979991967.8 116 22319.3419.2821.05     4 9.44400 46 24.56952+10 20 24.84241003-0006483011.602373+10.3402346449991954.8 0 0217.9819.90       5 9.87700 46 24.92808+10 20 43.17001003-0006487011.603867+10.345325 939991974.3 0 02  19.1821.05     %0a%0a%3cP%3e%0a%3cFONT%20SIZE=%27-1%27%3e%3cEM%3e%3cFONT%20COLOR=%27#0000FF%27>%3cB%3eNote:%20The%20Naval%20Observatory%20Merged%20Astrometric%20Dataset%20%28NOMAD%29%20contains%0aastrometric%20and%20photometric%20data%20for%20over%201%20billion%20stars%20derived%20from%0athe%20Hipparcos%20%28I/239%29,%20Tycho-2%20%28I/259%29,%20UCAC2%20%28I/289%29,%20and%20USNO-B1.0%0a%28I/284%29%20catalogs%20for%20astrometry%20and%20optical%20photometry,%20supplemented%0aby%202MASS%20%28II/246%29%20near-infrared%20photometry.%3cBR%3e%0a%3cFONT%20SIZE=%27-1%27%3eAn%20efficient%20remote%20query%20program%20%3cB%3efindnomad1%20is%0aavailable%20in%20the%20cdsclient%20%0apackage,%20for%20Unix/Linux%20platforms%0a%3cP%3e%0a

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	1.341	00 46 24.719328	+10 20 33.45000	1003-0006596	YM	011.6029972	+10.3426250	B	0.0	0.0	0.0	0.0	16.660	Y	15.660	Y	14.110	B	14.784	13.903	13.333
2	7.453	00 46 24.909336	+10 20 40.57008	1003-0006597	..	011.6037889	+10.3446028	B	0.0	0.0	0.0	0.0	19.130	o			19.400	e
3	8.873	00 46 24.916008	+10 20 26.30004	1003-0006598	..	011.6038167	+10.3406389	B	116.0	2.0	22.0	31.0	21.050	B			19.280	e
4	9.446	00 46 24.569328	+10 20 24.83988	1003-0006595	..	011.6023722	+10.3402333	B	0.0	0.0	0.0	0.0	17.980	o			19.900	e
5	9.877	00 46 24.928008	+10 20 43.17000	1003-0006599	..	011.6038667	+10.3453250	B	0.0	0.0	0.0	0.0	21.050	B			19.180	e

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>	\BegDIVclass='sort-down ' </A>
dec Full	_r arcsec	_RAJ2000 "h:m:s"	_DEJ2000 "d:m:s"	CMC14	f_	RAICRS deg	DEICRS deg	r'mag mag	Nt	Jmag mag	Hmag mag	Ksmag mag
1	1.414	00 46 24.72840	+10 20 33.5256	004624.7+102033		011.603035	+10.342646	17.022	3	14.784	13.904	13.333

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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	1.445	00 46 24.73536	+10 20 33.6660	NB7K000432	011.603064	+10.342685	1990.784	14.20	14.88	14.67	13.58	3	8.98	0.66

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