The 5 columns in color are computed by VizieR, and are not part of the original data.

Full	_r arcsec	_RAJ2000 "h:m:s"	_DEJ2000 "d:m:s"	Name	RAB1950 "h:m:s"	DEB1950 "d:m:s"	bmag mag	Nfields	Flag1	Flag2	Flag3	_RA.icrs "h:m:s"	_DE.icrs "d:m:s"
1	0.090	01 01 42.14591	+24 03 28.6490	+23.0028	00 59 00.671	+23 47 21.06	15.22	1	0	0	0	01 01 42.146	+24 03 28.65

%0a%0a%3cP%3e%0a%3cFONT%20SIZE=%27-1%27%3e%3cEM%3e%3cFONT%20COLOR=%27#0000FF%27>%3cB%3eNote:%20%25

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 0.201 01 01 42.14688 +24 03 28.7820 1125-00355368 015.425612 +24.057995     11.1 9.5 1953.778 2 8.051 01 01 41.63544 +24 03 32.4612 1125-00355321 015.423481 +24.059017     17.2 16.3 1953.778 3 9.168 01 01 41.48544 +24 03 27.5832 1125-00355310 015.422856 +24.057662     18.7 18.1 1953.778 %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%0a%5b%2a%2a%2a%2aClosingBrace%28s%29Inserted%2a%2a%2a%2a%5d">
Note: The Guide Star Catalog has been constructed to support the operational need of the Hubble Space Telescope. It contains over 25 million positions for about 19 million objects, of which more than 15 million are classified as stars. The version 1.2 is a new astrometric reduction which results in absolute position errors about 0.3-0.4 arcsec. (see GSC pages at URL http://www-gsss.stsci.edu/gsc/gsc.html)
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TABULARCELLPADDING=5 CELLSPACING=2 class='tablist Vbgcol2'Lp0.80Full	_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	0.10	01 01 42.1512	+24 03 28.692	0174001896	015.42563	+24.05797	0.2	12.38	0.25	1	3	02BD	1983.683

%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

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	0.17	01 01 42.1608	+24 03 28.692	0174001896	015.42567	+24.05797	0.2	12.38	0.26	1	3	1983.683

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Full	_r arcsec	_RAJ2000 [****ClosingBrace(s)Inserted****]
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%3cBR%3e%0a%3cEM%3e1&%3cFONT%20COLOR=%27#CD5B45%27>%201.129&%3cFONT%20COLOR=%27#CD5B45%27>01%2001%2042.20616&%3cFONT%20COLOR=%27#CD5B45%27>%2b24%2003%2029.4228&EO0857-0194620&015.425859&%2b24.058173&%207.33&%20&%201&%20%2013.89&%20%2059.6&%200.33&%209.54&%20&%201&%20%2012.39&%20%2063.2&%20%202.21&%20%3cBR%3e%0a %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	0.097	01 01 42.15336	+24 03 28.6776	N3222201296	015.425639	+24.057966	1990.812	9.14	0.42	10.22	0.43	0	27.34	0.30

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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	0.385	01 01 42.17880	+24 03 28.5624	1140-0012670	015.425745	+24.057934	203	80	1983.5	0	0	4		9.45	10.01	8.91	8.61
2	0.680	01 01 42.10272	+24 03 28.7604	1140-0012669	015.425428	+24.057989	95	14	1973.6	0	0	2	11.29		9.89
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%3cEM%3e2&%3cFONT%20COLOR=%27#CD5B45%27>%200.680&%3cFONT%20COLOR=%27#CD5B45%27>01%2001%2042.10272&%3cFONT%20COLOR=%27#CD5B45%27>%2b24%2003%2028.7604&1140-0012669&015.425428&%2b24.057989&%2095&%2014&1973.6&%20%20%20%20%200&%20%20%20%20%200&2&11.29&%20&%209.89&%20&%20%3cBR%3e">\Ahref='VizieR-5?-ref=VIZ6627b5cd19b07b&-out.add=.&-source=I/284/out&USNO-B1.0===1140-0012673&-out.orig=o' class='full'3 4.22201 01 42.38616+24 03 25.86241140-0012673015.426609+24.0571849999991981.0 0 0316.36  10.06  15.30 4 8.80101 01 41.59272+24 03 32.95081140-0012665015.423303+24.0591532466461973.5 0 0417.4916.11  14.8413.76 5 9.58301 01 42.83280+24 03 26.45281140-0012679015.428470+24.057348378 541974.7 0 02  17.23    14.97 %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	0.384	01 01 42.178656	+24 03 28.55988	1140-0012777	..	015.4257444	+24.0579333	B	0.0	0.0	0.0	0.0	10.010	B			8.910	B
2	0.680	01 01 42.102672	+24 03 28.76004	1140-0012776	YM	015.4254278	+24.0579889	B	0.0	0.0	0.0	0.0	13.820	Y	12.080	Y			13.336	12.550	12.298
3	4.222	01 01 42.385992	+24 03 25.85988	1140-0012780	..	015.4266083	+24.0571833	B	0.0	0.0	0.0	0.0	10.060	B
4	8.801	01 01 41.592672	+24 03 32.95008	1140-0012772	..	015.4233028	+24.0591528	B	0.0	0.0	0.0	0.0	17.490	o			14.840	B
5	9.582	01 01 42.832656	+24 03 26.44992	1140-0012786	..	015.4284694	+24.0573472	B	0.0	0.0	0.0	0.0					17.230	e

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