The 3 columns 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.

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	4.863	00 15 15.25680	-08 11 17.0520	0750-00058746	003.813570	-08.188070			17.6	17.2	1954.676
2	5.210	00 15 15.16152	-08 11 16.6704	0750-00058743	003.813173	-08.187964			16.9	17.2	1954.671
3	5.788	00 15 15.50688	-08 11 18.2400	0750-00058764	003.814612	-08.188400			18.2	17.9	1954.671
4	7.877	00 15 14.78352	-08 11 17.0016	0750-00058709	003.811598	-08.188056			16.9	15.2	1954.671

%0a%0a%3cP%3e%0a%3cFONT%20SIZE=%27-1%27%3e%3cEM%3e%3cFONT%20COLOR=%27#0000FF%27>%3cB%3eNote:%20The%20%3cB%3eGuide%20Star%20Catalog%20has%20been%20constructed%20to%20support%20the%20%0aoperational%20need%20of%20the%20Hubble%20Space%20Telescope.%0aIt%20contains%20over%2025%20million%20positions%20for%20about%2019%20million%0aobjects,%20of%20which%20more%20than%2015%20million%20are%20classified%20as%20stars.%0aThe%20version%20%3cB%3e1.2%20is%20a%20new%20astrometric%20reduction%20which%20results%20in%0aabsolute%20position%20errors%20about%200.3-0.4%20arcsec.%0a%28see%20GSC%20pages%20at%20URL%20http://www-gsss.stsci.edu/gsc/gsc.html%29%0a%3cP%3e%0a

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	8.58	00 15 14.7144	-08 11 17.232	0526100130	003.81131	-08.18812	0.7	14.42	0.40	0	3	04MU	1983.750

%0a%0a%3cP%3e%0a%3cFONT%20SIZE=%27-1%27%3e%3cEM%3e%3cFONT%20COLOR=%27#0000FF%27>%3cB%3eNote:%20The%20%3cB%3eGSC-ACT%20%3cEM%3e%28or%20%3cB%3eGSC1.3%29%0ais%20a%20recalibration%20of%20the%20%3cB%3e<%25E%20I/220%7cGSC1.1>,%20the%20catalogue%20constructed%20%0ato%20support%20the%20operational%20need%20of%20the%20Hubble%20Space%20Telescope,%0awith%20the%20%3cB%3e<%25E%20I/246%7cACT>,%20the%20combination%20of%20the%20Astrographic%20Catalogue%0aand%20the%20%3cB%3e%3cEM%3eTycho%20catalogue%20derived%20from%20the%20%3cEM%3e<%25E%20I/239%7cHipparcos>%0amission;%20see%20http://www.projectpluto.com/gsc_act.htm%20for%20more%20details%0aabout%20this%20recalibration.%0a%3cP%3e%0a%22>

>	\BegDIVclass='sort-down ' </A>
dec 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	8.78	00 15 14.7000	-08 11 17.196	0526100130	003.81125	-08.18811	0.7	14.44	0.41	0	3	1983.750

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	7.505	00 15 14.85432	-08 11 16.3968	S0003221125	003.811893	-08.187888	1996.836	13.72	0.42	13.21	0.32	3	13.10	0.28
2	8.444	00 15 15.73008	-08 11 18.7152	S00032213749	003.815542	-08.188532	1996.836	17.10	0.43	16.26	0.32	3	8.41	0.51

%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	3.272	00 15 15.05616	-08 11 19.3920	0818-0003651	003.812734	-08.188720	549	334	1972.7	0	0	2	17.79		17.84
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">

%3cEM%3e1&%3cFONT%20COLOR=%27#CD5B45%27>%203.272&%3cFONT%20COLOR=%27#CD5B45%27>00%2015%2015.05616&%3cFONT%20COLOR=%27#CD5B45%27>-08%2011%2019.3920&0818-0003651&003.812734&-08.188720&549&334&1972.7&%20%20%20%20%200&%20%20%20%20%200&2&17.79&%20&17.84&%20&%20%3cBR%3e">\Ahref='VizieR-5?-ref=VIZ6639c7331a38a2&-out.add=.&-source=I/284/out&USNO-B1.0===0818-0003656&-out.orig=o' class='full'2 4.81700 15 15.24936-08 11 17.08080818-0003656003.813539-08.188078 60 151968.7 -16 4316.2616.76  17.73   3 5.43600 15 15.46536-08 11 18.07080818-0003659003.814439-08.1883535312941972.4 0 0417.8418.1614.9718.30   4 5.49200 15 15.37344-08 11 16.98000818-0003657003.814056-08.1880501908681968.0 46 0316.9917.54  17.58   5 5.64500 15 15.14688-08 11 16.26000818-0003654003.813112-08.1878508759991978.4 0 0315.96  18.3117.80   6 6.39500 15 14.95152-08 11 16.64160818-0003650003.812298-08.1879565146071981.3 0 03  15.83  14.1217.56 7 8.16600 15 14.76216-08 11 16.94040818-0003648003.811509-08.1880394252181976.9 0 0515.6614.6013.9814.3916.87 8 8.90100 15 15.17808-08 11 12.95160818-0003655003.813242-08.1869313711291969.2 0 0218.37  18.75     9 9.13300 15 15.07752-08 11 12.90120818-0003652003.812823-08.1869171784491974.2 -30 88416.2117.3318.1818.43   10 9.70100 15 15.81744-08 11 18.59280818-0003662003.815906-08.1884985784861972.4 0 0417.4518.7115.8318.14   %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	3.275	00 15 15.055992	-08 11 19.38984	0818-0003667	..	003.8127333	-08.1887194	B	0.0	0.0	0.0	0.0	17.840	B
2	4.817	00 15 15.249336	-08 11 17.08008	0818-0003672	..	003.8135389	-08.1880778	B	-16.0	1.0	4.0	0.0	16.260	o			17.730	B
3	5.436	00 15 15.465336	-08 11 18.07008	0818-0003675	..	003.8144389	-08.1883528	B	0.0	0.0	0.0	0.0	14.970	B			18.300	B
4	5.491	00 15 15.373344	-08 11 16.98000	0818-0003673	..	003.8140556	-08.1880500	B	46.0	5.0	0.0	23.0	16.990	o			17.580	B
5	5.646	00 15 15.146664	-08 11 16.26000	0818-0003670	Y.	003.8131111	-08.1878500	B	0.0	0.0	0.0	0.0	17.490	Y			17.800	B
6	6.398	00 15 14.951328	-08 11 16.64016	0818-0003666	..	003.8122972	-08.1879556	B	0.0	0.0	0.0	0.0					14.120	B
7	8.169	00 15 14.761992	-08 11 16.94004	0818-0003664	Y.	003.8115083	-08.1880389	B	0.0	0.0	0.0	0.0	13.980	B	17.970	Y	14.390	B
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7	8.169	00 15 14.761992	-08 11 16.94004	0818-0003664	Y.	003.8115083	-08.1880389	B	0.0	0.0	0.0	0.0	13.980	B	17.970	Y	14.390	B

%22>\Ahref='VizieR-5?-ref=VIZ6639c7331a38a2&-out.add=.&-source=I/297/out&NOMAD1===0818-0003671' class='full'8 8.90300 15 15.178008-08 11 12.950160818-0003671..003.8132417-08.1869306B 0.0 0.0 0.0 0.018.750B                 9 9.13500 15 15.077328-08 11 12.900120818-0003668..003.8128222-08.1869167B -30.0 5.0 88.0 13.018.180B    18.430B         10 9.70000 15 15.817344-08 11 18.589920818-0003678..003.8159056-08.1884972B 0.0 0.0 0.0 0.015.830B    18.140B         %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	7.508	00 15 14.85456	-08 11 16.3896	S06H000125	003.811894	-08.187886	1996.836	13.72	13.21		16.73	3	13.10	0.28
2	8.448	00 15 15.73032	-08 11 18.7116	S06H003749	003.815543	-08.188531	1996.836	17.10	16.26		18.90	3	8.41	0.51

%0a%0a

Full	_r arcsec	_RAJ2000 "h:m:s"	_DEJ2000 "d:m:s"	RAJ2000 deg	DEJ2000 deg	pmRA mas/yr	pmDE mas/yr	Jmag mag	Kmag mag	b1mag mag	b2mag mag	r1mag mag	r2mag mag	imag mag	No	fl [****ClosingBrace(s)Inserted****]
">

fl

%22> 1 3.92600 15 15.01896-08 11 19.0104003.812579-08.188614 -10.9 4.3    17.7917.84       2 0 2 5.46200 15 15.41400-08 11 17.3832003.814225-08.188162 -15.7 11.4    17.8414.9718.16     3 0 3 6.65200 15 14.91480-08 11 16.7388003.812145-08.187983 -10.0 -5.6        15.83  17.56 2 0 4 7.50800 15 15.68808-08 11 19.7808003.815367-08.188828 -64.8 1.2        19.10  17.79 2 0 5 7.61600 15 15.20400-08 11 14.2296003.813350-08.187286 47.2 38.6    15.9618.31       2 0 6 8.80200 15 14.72592-08 11 16.5984003.811358-08.187944 -8.2 4.8    15.6613.9814.60  16.87 4 1 7 8.92100 15 15.14976-08 11 12.9588003.813124-08.186933 -8.0 -4.3    18.3718.75       2 0 8 9.03700 15 15.08376-08 11 12.9804003.812849-08.186939 -25.2 78.3    16.2118.1817.33     3 0 %0a%0a%3cP%3e%0a%3cFONT%20SIZE=%27-1%27%3e%3cEM%3e%3cFONT%20COLOR=%27#0000FF%27>%3cB%3eNote:%20%3cP%3e%0a

Full	_r arcsec	_RAJ2000 "h:m:s"	_DEJ2000 "d:m:s"	RAJ2000 deg	DEJ2000 deg	e_RAJ2000 (...)	e_DEJ2000 arcsec	magBJ mag	e_ mag	magRF mag	e_ mag	magG mag	e_ mag	magGrvs mag	e_ mag	alphaEpoch yr	deltaEpoch yr	pmRA mas/yr	e_ (...)	pmDE mas/yr	e_ (...)
1	7.508	00 15 15.68808	-08 11 19.7812	003.815367	-08.188828	0.163	0.163	16.257	0.300	17.096	0.300	16.829	0.400	17.401	0.500	1974.7200	1974.7200	-64.8	8.1	1.2	8.1
2	8.217	00 15 14.77438	-08 11 16.6282	003.811560	-08.187952	0.144	0.206	13.212	0.300	13.724	0.300	15.680	0.081	15.004	0.111	2006.7100	2006.7100	-10.0	8.1	-5.6	8.1
3	9.620	00 15 14.68019	-08 11 16.1411	003.811167	-08.187817	0.098	0.098	13.980	0.400	14.600	0.400	14.397	0.400	14.799	0.500	2006.7100	2006.7100	-8.2	6.9	4.8	6.5

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