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	3.787	08 32 45.34872	-21 26 50.3232	0675-09261823	128.188953	-21.447312			18.6	17.7	1982.038
2	5.462	08 32 45.95352	-21 26 53.4408	0675-09262132	128.191473	-21.448178			19.6	17.7	1982.038
3	19.279	08 32 44.24808	-21 26 52.8900	0675-09261289	128.184367	-21.448025			15.3	15.8	1982.038
4	24.048	08 32 46.94472	-21 27 05.9616	0675-09262642	128.195603	-21.451656			19.9	17.7	1982.038
5	24.349	08 32 44.48952	-21 26 32.0532	0675-09261416	128.185373	-21.442237			18.3	17.3	1982.038
6	28.366	08 32 46.23480	-21 26 23.5716	0675-09262280	128.192645	-21.439881			15.6	15.9	1982.038

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Full	_r arcsec	_RAJ2000 "h:m:s"	_DEJ2000 "d:m:s"	GSC	RAJ2000 deg	DEJ2000 deg	PosErr arcsec	Pmag mag	e_ mag	n_	Class	Plate	Epoch yr
1	10.33	08 32 46.1736	-21 26 43.764	0602303423	128.19239	-21.44549	0.3	15.42	0.40	0	0	05Y0	1979.909
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">

%3cEM%3e1&%3cFONT%20COLOR=%27#CD5B45%27>10.33&%3cFONT%20COLOR=%27#CD5B45%27>08%2032%2046.1736&%3cFONT%20COLOR=%27#CD5B45%27>-21%2026%2043.764&0602303423&128.19239&-21.44549&%200.3&15.42&%200.40&%200&0&05Y0&1979.909%3cBR%3e">\EndTABLESORT

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.

Full	_r arcsec	_RAJ2000 "h:m:s"	_DEJ2000 "d:m:s"	GSC	RAJ2000 deg	DEJ2000 deg	PosErr arcsec	Pmag mag	e_ mag	n_	Class	Epoch yr
1	10.45	08 32 46.1712	-21 26 43.548	0602303423	128.19238	-21.44543	0.3	15.43	0.40	0	0	1979.909

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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	3.886	08 32 45.34296	-21 26 50.1288	S13113025034	128.188929	-21.447258	1993.195	18.13	0.40	19.27	0.39	3	3.24	0.21
2	10.137	08 32 46.15224	-21 26 43.7208	S13113021868	128.192301	-21.445478	1993.195	14.08	0.40	14.51	0.39	0	5.92	0.16
3	19.019	08 32 46.61328	-21 26 37.6008	S13113025090	128.194222	-21.443778	1993.195	15.19	0.40	16.07	0.39	0	4.61	0.12
4	19.368	08 32 44.23824	-21 26 52.4436	S13113025035	128.184326	-21.447901	1993.195	15.40	0.40	15.75	0.39	0	4.44	0.10
[****ClosingBrace(s)Inserted****]
">

%3cEM%3e4&%3cFONT%20COLOR=%27#CD5B45%27>19.368&%3cFONT%20COLOR=%27#CD5B45%27>08%2032%2044.23824&%3cFONT%20COLOR=%27#CD5B45%27>-21%2026%2052.4436&S13113025035&128.184326&-21.447901&1993.195&15.40&%200.40&15.75&%200.39&0&%20%204.44&%200.10%3cBR%3e">\Ahref='VizieR-5?-ref=VIZ66426c1835c1a&-out.add=.&-source=I/271/out&GSC2.2===S13113024961' class='full'524.09108 32 46.95384-21 27 05.8752S13113024961128.195641-21.4516321993.19518.48 0.40    3 2.78 0.17 624.54108 32 44.46552-21 26 32.0892S13113025098128.185273-21.4422471993.19517.62 0.4018.92 0.393 3.14 0.12 728.44508 32 46.23072-21 26 23.4708S13113025143128.192628-21.4398531993.19514.90 0.3915.68 0.393 6.53 0.41 %0a%0a%3cP%3e%0a%3cFONT%20SIZE=%27-1%27%3e%3cEM%3e%3cFONT%20COLOR=%27#0000FF%27>%3cB%3eNote:%20The%20%3cB%3eUSNO-B%20Catalog%20presents%20positions,%20proper%20motions,%20%0amagnitudes%20un%20blue,%20red%20and%20infrared,%20as%20well%20as%20star/galaxy%20estimators%0afor%201,045,175,762%20objects%20derived%20from%203,648,832,040%20separate%20observations.%0aThe%20data%20were%20taken%20from%20scans%20of%207,435%20Schmidt%20plates%0ataken%20from%20various%20sky%20surveys%20during%20the%20last%2050%20years.%3cBR%3e%0aUSNO-B1.0%20catalog%20was%20created%20by%20Dave%20Monet%20and%20collaborators%0aat%20http://www.nofs.navy.mil/data/fchpix/%20%3cBR%3e%0a%3cB%3e%3cFONT%20COLOR=%27#EE0000%27>%20Note%20that%20the%20star/galaxy%20estimators%20may%20be%20mixed%20up%0a%20in%20dense%20regions.%0a%3cP%3e%0a

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	3.991	08 32 45.33480	-21 26 50.2008	0685-0200635	128.188895	-21.447278	101	86	1976.2	0	0	5	19.71	18.52	18.82	18.11	17.61
2	5.657	08 32 45.97800	-21 26 53.2320	0685-0200641	128.191575	-21.448120	199	60	1976.0	0	0	5	20.58	18.36	20.11	18.48	17.74
3	12.234	08 32 46.01400	-21 26 39.6816	0685-0200643	128.191725	-21.444356	357	103	1968.3	0	0	3	18.74	17.59			16.98
4	12.594	08 32 46.25880	-21 26 41.7228	0685-0200650	128.192745	-21.444923	447	440	1976.2	0	0	5	13.56	13.74	13.58	12.72	13.30
5	18.086	08 32 46.57008	-21 26 38.3208	0685-0200656	128.194042	-21.443978	46	60	1976.0	0	0	2		14.63			14.43
6	19.302	08 32 44.24472	-21 26 52.6812	0685-0200624	128.184353	-21.447967	63	71	1976.2	0	0	5	15.93	15.24	15.70	15.35	15.24
7	23.794	08 32 46.94400	-21 27 05.5728	0685-0200663	128.195600	-21.451548	116	384	1976.0	0	0	5	20.62	18.22	20.39	18.67	16.78
8	24.335	08 32 44.48352	-21 26 32.1432	0685-0200629	128.185348	-21.442262	54	80	1976.2	0	0	5	19.14	17.72	18.63	17.68	17.31
9	27.038	08 32 46.99344	-21 26 31.5528	0685-0200664	128.195806	-21.442098	999	999	1963.5	494	416	3	19.56	18.88	14.08
10	28.465	08 32 46.22400	-21 26 23.4204	0685-0200649	128.192600	-21.439839	110	133	1976.2	0	0	5	16.58	15.15	15.92	14.88	14.86
11	29.467	08 32 46.14408	-21 26 22.0632	0685-0200646	128.192267	-21.439462	438	566	1974.8	0	0	4	18.09	14.81		14.72	16.06
12	29.614	08 32 45.20808	-21 26 21.5520	0685-0200634	128.188367	-21.439320	632	999	1975.0	0	0	2		18.63			18.80

%0a%0a%3cP%3e%0a%3cFONT%20SIZE=%27-1%27%3e%3cEM%3e%3cFONT%20COLOR=%27#0000FF%27>%3cB%3eNote:%20More%20recent%20versions%20available:%20UCAC3%20%28I/315%29%20and%20UCAC4%20%28I/322%29;%20see%20also%20the%20UCAC%20home%20page%20at%20http://ad.usno.navy.mil/ucac/%3cP%3e%0a

>	\BegDIVclass='sort-down ' </A>
dec Full	_r arcsec	_RAJ2000 "h:m:s"	_DEJ2000 "d:m:s"	2UCAC	RAJ2000 deg	e_ mas	DEJ2000 deg	e_ mas	UCmag mag	No	Nc	pmRA mas/yr	pmDE mas/yr	2Mkey	Jmag mag	Kmag mag
1	10.008	08 32 46.151304	-21 26 43.89720	23352016	128.1922971	15	-21.4455270	16	14.68	4	2	-21.8	-17.5	1280104048	13.571	13.243
2	19.033	08 32 46.614216	-21 26 37.59324	23352020	128.1942259	15	-21.4437759	64	15.64	2	2	-15.8	4.2	1280104043	14.340	14.072

%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	3.993	08 32 45.334656	-21 26 50.20008	0685-0205205	..	128.1888944	-21.4472778	B	0.0	0.0	0.0	0.0	18.820	B			18.110	B
2	5.656	08 32 45.978000	-21 26 53.22984	0685-0205211	..	128.1915750	-21.4481194	B	0.0	0.0	0.0	0.0	20.110	B			18.480	B
3	10.008	08 32 46.151256	-21 26 43.89684	0685-0205217	YM	128.1922969	-21.4455269	C	-21.7	12.3	-17.5	12.3	14.300	Y	14.090	Y	14.680	C	13.571	13.296	13.243
4	12.236	08 32 46.014000	-21 26 39.68016	0685-0205213	..	128.1917250	-21.4443556	B	0.0	0.0	0.0	0.0	18.740	o			17.590	e
5	19.033	08 32 46.614192	-21 26 37.59288	0685-0205229	YM	128.1942258	-21.4437758	C	-15.8	12.3	4.2	13.5	14.930	Y	15.020	Y	14.630	e	14.340	14.130	14.072
6	19.302	08 32 44.244672	-21 26 52.68012	0685-0205194	YM	128.1843528	-21.4479667	B	0.0	0.0	0.0	0.0	15.440	Y	15.460	Y	15.350	B	14.871	14.599	14.510
[****ClosingBrace(s)Inserted****]
6	19.302	08 32 44.244672	-21 26 52.68012	0685-0205194	YM	128.1843528	-21.4479667	B	0.0	0.0	0.0	0.0	15.440	Y	15.460	Y	15.350	B	14.871	14.599	14.510

%22>\Ahref='VizieR-5?-ref=VIZ66426c1835c1a&-out.add=.&-source=I/297/out&NOMAD1===0685-0205233' class='full'723.79208 32 46.944000-21 27 05.569920685-0205233.M128.1956000-21.4515472B 0.0 0.0 0.0 0.020.390B    18.670B15.43214.86514.638   824.34008 32 44.483328-21 26 32.139960685-0205199YM128.1853472-21.4422611B 0.0 0.0 0.0 0.018.630B17.790Y17.680B16.12015.56415.579   927.03908 32 46.993344-21 26 31.549920685-0205234..128.1958056-21.4420972B 494.0 40.0 416.0 30.014.080B    18.880e         1028.46508 32 46.224000-21 26 23.420040685-0205220YM128.1926000-21.4398389B 0.0 0.0 0.0 0.016.010Y15.620Y14.880B14.52914.19914.144   1129.46908 32 46.144008-21 26 22.059960685-0205216..128.1922667-21.4394611B 0.0 0.0 0.0 0.018.090o    14.720B         1229.61608 32 45.208008-21 26 21.549840685-0205204..128.1883667-21.4393194B 0.0 0.0 0.0 0.0        18.630e         %0a%0a%3cP%3e%0a%3cFONT%20SIZE=%27-1%27%3e%3cEM%3e%3cFONT%20COLOR=%27#0000FF%27>%3cB%3eNote:%20This%20version%20of%20the%20%0a%3cB%3eGSC-II%0ahas%20no%20proper%20motions,%20but%20the%20limits%20on%20brightness%20which%20existed%20on%0a%20%28F<18.5,%20B_j<19.5%29%20were%20removed.%0a%25The%20data%20are%20%3cB%3e%3cFONT%20COLOR=%27#0000CD%27>copyrighted,%20check%0a%25the%20%3cB%3edata%20use%20Policy.%0a%3cP%3e%0a

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	3.883	08 32 45.34320	-21 26 50.1216	S5TE005034	128.188930	-21.447256	1993.195	18.13	19.27		17.61	3	3.24	0.21
2	5.335	08 32 45.94344	-21 26 53.4264	S5TE005012	128.191431	-21.448174	1993.195	18.68	20.20		17.62	3	2.55	0.17
3	10.142	08 32 46.15248	-21 26 43.7172	S5TE001868	128.192302	-21.445477	1993.195	14.08	14.51		13.83	0	5.92	0.16
4	10.627	08 32 45.00096	-21 26 44.4048	S5TE005054	128.187504	-21.445668	1993.195	19.76	21.88			3	1.80	0.18
5	19.026	08 32 46.61352	-21 26 37.5936	S5TE005090	128.194223	-21.443776	1993.195	15.19	16.07		14.88	3	4.61	0.12
6	19.367	08 32 44.23824	-21 26 52.4364	S5TE005035	128.184326	-21.447899	1993.195	15.40	15.75		15.21	0	4.44	0.10
7	24.090	08 32 46.95408	-21 27 05.8680	S5TE004961	128.195642	-21.451630	1993.195	18.48	20.73		16.82	3	2.78	0.17
8	24.541	08 32 44.46576	-21 26 32.0856	S5TE005098	128.185274	-21.442246	1993.195	17.62	18.92		17.06	3	3.14	0.12
9	28.452	08 32 46.23072	-21 26 23.4636	S5TE005143	128.192628	-21.439851	1993.195	14.90	15.68		14.65	3	6.53	0.41

%0a%0a%3cP%3e%0a%3cFONT%20SIZE=%27-1%27%3e%3cEM%3e%3cFONT%20COLOR=%27#0000FF%27>%3cB%3eNote:%20%20The%20limiting%20magnitude%20is%20about%2015.2%20in%20the%20GSC%20photometric%20system.%3cP%3e%0a