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	21.510	07 41 19.70736	+31 38 11.8824	1200-05767294	115.332114	+31.636634			20.0	18.1	1953.124
2	28.839	07 41 21.67872	+31 38 51.9900	1200-05767569	115.340328	+31.647775			17.8	17.2	1953.124

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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	7.840	07 41 21.66480	+31 38 21.3504	EO0678-0060825	115.340270	+31.639264	20.00	L	0				21.56		-1	-1.41	3.4	1.56
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%3cEM%3e1&%3cFONT%20COLOR=%27#CD5B45%27>%207.840&%3cFONT%20COLOR=%27#CD5B45%27>07%2041%2021.66480&%3cFONT%20COLOR=%27#CD5B45%27>%2b31%2038%2021.3504&EO0678-0060825&115.340270&%2b31.639264&20.00&L&%200&%20&%20&%20&21.56&%20&-1&%20%20-1.41&%20%20%203.4&%20%201.56&%20%3cBR%3e">\Ahref='VizieR-5?-ref=VIZ663f63608f5f3&-out.add=.&-source=I/267/out&APM-ID===EO0678-0060990&-out.orig=o' class='full'220.98307 41 19.75344+31 38 11.9616EO0678-0060990115.332306+31.63665618.33   1 11.95 10.1 0.4121.88L 0     3.55   322.25807 41 20.21280+31 38 04.9200EO0678-0061123115.334220+31.63470019.35  -1 1.36 5.2 0.2421.05   1 4.23 5.4 1.70   428.43607 41 21.65880+31 38 51.6408EO0678-0060309115.340245+31.64767817.15  -1 -0.65 8.4 0.0318.21  -1 -0.89 7.5 1.06   %0a%0a%3cP%3e%0a%3cFONT%20SIZE=%27-1%27%3e%3cEM%3e%3cFONT%20COLOR=%27#0000FF%27>%3cB%3eNote:%20The%20construction%20of%20the%20%0a%3cB%3eGSC-II%20%0ais%20still%20in%20progress:%20this%0aversion%20has%20no%20proper%20motions,%20and%20the%20magnitude%20limits%20are%2018.5%20in%20F%20%28red%29%0aand%2019.5%20in%20J%20%28blue%29.%20The%20data%20are%20%3cB%3e%3cFONT%20COLOR=%27#0000CD%27>copyrighted,%20check%20%0athe%20%3cB%3edata%20use%20Policy.%0a%3cP%3e%0a

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	21.117	07 41 19.71168	+31 38 12.5016	N230133018313	115.332132	+31.636806	1989.083	18.06	0.43			3	5.60	0.39
2	28.570	07 41 21.68856	+31 38 51.6768	N230133018496	115.340369	+31.647688	1989.083	17.24	0.42	18.27	0.41	3	4.54	0.35

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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	17.462	07 41 20.03400	+31 38 13.0704	1216-0156280	115.333475	+31.636964	302	215	1984.2	0	0	4		18.85	21.32	19.18	17.66
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%3cEM%3e1&%3cFONT%20COLOR=%27#CD5B45%27>17.462&%3cFONT%20COLOR=%27#CD5B45%27>07%2041%2020.03400&%3cFONT%20COLOR=%27#CD5B45%27>%2b31%2038%2013.0704&1216-0156280&115.333475&%2b31.636964&302&215&1984.2&%20%20%20%20%200&%20%20%20%20%200&4&%20&18.85&21.32&19.18&17.66%3cBR%3e">\Ahref='VizieR-5?-ref=VIZ663f63608f5f3&-out.add=.&-source=I/284/out&USNO-B1.0===1216-0156279&-out.orig=o' class='full'218.09607 41 19.95672+31 38 13.30081216-0156279115.333153+31.6370289999991979.3 0 03  17.5621.1119.27   320.53407 41 20.38080+31 38 05.72281216-0156283115.334920+31.6349239281551971.1 0 0220.04    18.73   421.67607 41 19.68408+31 38 12.02281216-0156277115.332017+31.6366731221971978.0 0 0520.8218.2919.7718.0117.79 522.19307 41 20.25336+31 38 04.70041216-0156281115.334389+31.6346391722181979.3 22 -303  18.8120.4919.16   628.61407 41 21.66000+31 38 51.82081216-0156287115.340250+31.647728 52 731978.0 0 0518.2317.1918.1817.1816.85 %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	17.462	07 41 20.034000	+31 38 13.07004	1216-0159911	..	115.3334750	+31.6369639	B	0.0	0.0	0.0	0.0	21.320	B			19.180	B
2	18.097	07 41 19.956672	+31 38 13.30008	1216-0159910	.M	115.3331528	+31.6370278	B	0.0	0.0	0.0	0.0	21.110	B			19.270	B	16.530	15.804	15.477
3	20.537	07 41 20.380656	+31 38 05.71992	1216-0159914	..	115.3349194	+31.6349222	B	0.0	0.0	0.0	0.0	20.040	o			18.730	B
4	21.678	07 41 19.684008	+31 38 12.01992	1216-0159908	.M	115.3320167	+31.6366722	B	0.0	0.0	0.0	0.0	19.770	B			18.010	B	16.670	15.907	15.077
5	22.194	07 41 20.253336	+31 38 04.70004	1216-0159912	..	115.3343889	+31.6346389	B	22.0	6.0	-30.0	7.0	20.490	B			19.160	B
6	28.613	07 41 21.660000	+31 38 51.82008	1216-0159918	YM	115.3402500	+31.6477278	B	0.0	0.0	0.0	0.0	17.440	Y	17.110	Y	17.180	B	16.298	16.190	15.805
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6	28.613	07 41 21.660000	+31 38 51.82008	1216-0159918	YM	115.3402500	+31.6477278	B	0.0	0.0	0.0	0.0	17.440	Y	17.110	Y	17.180	B	16.298	16.190	15.805

%22>\EndTABLESORT

Full	_r arcsec	_RAJ2000 "h:m:s"	_DEJ2000 "d:m:s"	RAJ2000 deg	DEJ2000 deg	Jmag mag	Fmag mag	Nmag mag	pmRA mas/yr	pmDE mas/yr	Epoch yr	Field
1	28.569	07 41 21.68545200	+31 38 51.6862752	115.340356050	+31.647690632	17.5	17.0	16.8	-0.966	-2.723	1981.401	Field

%0a%0a%3cP%3e%0a%3cFONT%20SIZE=%27-1%27%3e%3cEM%3e%3cFONT%20COLOR=%27#0000FF%27>%3cB%3eNote:%20Zone%20-30/%2b50deg%3cP%3e%0a

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	28.532	07 41 21.69672	+31 38 51.6084	074121.6+313851		115.340403	+31.647669	17.148	1	16.299

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Full	_r arcsec	_RAJ2000 "h:m:s"	_DEJ2000 [****ClosingBrace(s)Inserted****]
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%22> _DEJ2000