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	18.104	15 23 32.08200	+09 21 31.7700	0975-07813081	230.883675	+09.358825			16.0	15.1	1955.369

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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	2.969	15 23 33.37944	+09 21 23.2632	EO1422-0234232	230.889081	+09.356462	19.66		-1	-0.25	4.6	0.10	21.52	L	0			1.86
2	18.431	15 23 32.06808	+09 21 32.1300	EO1422-0234131	230.883617	+09.358925	16.18		-1	0.27	13.0	0.12	17.58		-1	0.65	11.3	1.40
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%3cEM%3e2&%3cFONT%20COLOR=%27#CD5B45%27>18.431&%3cFONT%20COLOR=%27#CD5B45%27>15%2023%2032.06808&%3cFONT%20COLOR=%27#CD5B45%27>%2b09%2021%2032.1300&EO1422-0234131&230.883617&%2b09.358925&16.18&%20&-1&%20%20%200.27&%20%2013.0&%200.12&17.58&%20&-1&%20%20%200.65&%20%2011.3&%20%201.40&%20%3cBR%3e">\EndTABLESORT

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	18.017	15 23 32.08440	+09 21 31.6260	N13101313360	230.883685	+09.358785	1996.236	15.56	0.35	17.00	0.33	0	3.68	0.07

%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	3.683	15 23 33.38736	+09 21 22.3128	0993-0253731	230.889114	+09.356198	484	309	1979.9	0	0	3		20.05	20.56	19.39
2	18.136	15 23 32.08272	+09 21 31.8816	0993-0253726	230.883678	+09.358856	73	56	1978.5	8	2	5	16.72	15.29	17.21	15.57	14.60
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%3cEM%3e2&%3cFONT%20COLOR=%27#CD5B45%27>18.136&%3cFONT%20COLOR=%27#CD5B45%27>15%2023%2032.08272&%3cFONT%20COLOR=%27#CD5B45%27>%2b09%2021%2031.8816&0993-0253726&230.883678&%2b09.358856&%2073&%2056&1978.5&%20%20%20%20%208&%20%20%20%20%202&5&16.72&15.29&17.21&15.57&14.60%3cBR%3e">\EndTABLESORT

Note: More recent versions available: UCAC3 (I/315) and UCAC4 (I/322); see also the UCAC home page at http://ad.usno.navy.mil/ucac/

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	18.172	15 23 32.075736	+09 21 31.72212	35039320	230.8836489	75	+09.3588117	74	16.35	2	2	3.6	-7.4	938474436	14.261	13.652

%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	[****ClosingBrace(s)Inserted****]
">

mag&%">\BegDIVclass='sort-down ' </A>decHmag
magKmag
mag

R

1 3.68515 23 33.387336+09 21 22.309920993-0257935..230.8891139+09.3561972B 0.0 0.0 0.0 0.020.560B    19.390B         218.17215 23 32.075736+09 21 31.722120993-0257930YM230.8836489+09.3588117C 3.5 6.6 -7.4 6.516.490Y15.880Y15.570B14.26113.86613.652   %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	18.240	15 23 32.07120	+09 21 31.7376	152332.0+092131		230.883630	+09.358816	15.734	4	14.261	13.866	13.652

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