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	5.486	03 02 23.79072	+09 24 32.6304	0975-00680924	045.599128	+09.409064			13.2	11.1	1955.038

%0a%0a%3cP%3e%0a%3cFONT%20SIZE=%27-1%27%3e%3cEM%3e%3cFONT%20COLOR=%27#0000FF%27>%3cB%3eNote:%20%3cB%3e%3cFONT%20COLOR=%27#CD5B45%27>%20The%20current%20version%20includes%20only%20the%20North%20%28POSS-I%20plates%29%3cP%3e%0a

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	5.444	03 02 23.75472	+09 24 32.8032	EO1320-0007540	045.598978	+09.409112	12.84		2	20.68	29.3	0.23	14.46		2	76.27	27.1	1.62

%0a%0a%5b%2a%2a%2a%2aClosingBrace%28s%29Inserted%2a%2a%2a%2a%5d">">\scripttype='text/javascript' ts_init('!ext/apm.exe_2');

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	4.915	03 02 23.83704	+09 24 33.1164	N33103022089	045.599321	+09.409199	1990.812	11.90	0.38	12.71	0.28	3	12.56	0.21

%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	5.032	03 02 23.80608	+09 24 33.0516	0994-0027654	045.599192	+09.409181	89	169	1950.0	0	0	5	13.17	11.08	11.32	10.69	11.35
2	5.579	03 02 23.52144	+09 24 40.4712	0994-0027652	045.598006	+09.411242	473	463	1950.0	0	0	4	18.10		16.91	16.03	17.23
[****ClosingBrace(s)Inserted****]
">

%3cEM%3e2&%3cFONT%20COLOR=%27#CD5B45%27>%205.579&%3cFONT%20COLOR=%27#CD5B45%27>03%2002%2023.52144&%3cFONT%20COLOR=%27#CD5B45%27>%2b09%2024%2040.4712&0994-0027652&045.598006&%2b09.411242&473&463&1950.0&%20%20%20%20%200&%20%20%20%20%200&4&18.10&%20&16.91&16.03&17.23%3cBR%3e">\Ahref='VizieR-5?-ref=VIZ66224f8920e85d&-out.add=.&-source=I/284/out&USNO-B1.0===0994-0027655&-out.orig=o' class='full'3 6.02903 02 23.98944+09 24 32.30280994-0027655045.599956+09.4089739399591979.2 -274 94319.60  17.7817.14   4 7.59703 02 24.36480+09 24 36.63000994-0027658045.601520+09.4101751319991979.2 114 194317.26  17.8917.61   5 8.64503 02 23.32416+09 24 41.46120994-0027651045.597184+09.4115175477091955.0 0 0219.0218.10       %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	1.703	03 02 23.752800	+09 24 37.40292	0994-0027970	.M	045.5989700	+09.4103897	M	0.0	0.0	0.0	0.0							15.002	15.820	13.878
2	5.033	03 02 23.806008	+09 24 33.05016	0994-0027971	YM	045.5991917	+09.4091806	B	0.0	0.0	0.0	0.0	18.240	Y	16.580	Y	10.690	B	15.361	14.747	14.445
3	5.580	03 02 23.521344	+09 24 40.47012	0994-0027968	..	045.5980056	+09.4112417	B	0.0	0.0	0.0	0.0	16.910	B			16.030	B
4	6.031	03 02 23.989344	+09 24 32.29992	0994-0027972	..	045.5999556	+09.4089722	B	-274.0	34.0	94.0	35.0	17.780	B			17.140	B
5	7.595	03 02 24.364656	+09 24 36.63000	0994-0027975	..	045.6015194	+09.4101750	B	114.0	4.0	194.0	37.0	17.890	B			17.610	B
6	8.647	03 02 23.323992	+09 24 41.46012	0994-0027967	..	045.5971833	+09.4115167	B	0.0	0.0	0.0	0.0	19.020	o			18.100	e
[****ClosingBrace(s)Inserted****]
6	8.647	03 02 23.323992	+09 24 41.46012	0994-0027967	..	045.5971833	+09.4115167	B	0.0	0.0	0.0	0.0	19.020	o			18.100	e

%22>\EndTABLESORT

Note: Zone -30/+50deg

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	5.604	03 02 23.83080	+09 24 32.4324	030223.8+092432		045.599295	+09.409009	17.069	1

%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	4.911	03 02 23.83704	+09 24 33.1200	NC36002089	045.599321	+09.409200	1990.812	11.90	12.71	14.39	11.66	3	12.56	0.21

%0a%0a

Full	_r arcsec	[****ClosingBrace(s)Inserted****]
">

%22>arcsec ">\BegDIVclass='sort-down ' </A>string _RAJ2000
"h:m:s" _DEJ2000
"d:m:s"

RAJ2000
degDEJ2000
degpmRA
mas/yrpmDE
mas/yrJmag
magKmag
magb1mag
magb2mag
magr1mag
magr2mag
magimag
magNo

fl

1 4.81803 02 23.82168+09 24 33.2352045.599257+09.409232 1.9 1.515.36114.44613.1711.3211.0810.6911.35 9 0 2 5.13103 02 23.54616+09 24 40.1976045.598109+09.411166 28.1 -40.7    18.1016.91  16.0317.23 7 0 3 5.67703 02 23.97624+09 24 32.6088045.599901+09.409058 -280.8 88.4    19.6017.78  17.14   3 0 4 7.74003 02 24.37824+09 24 36.9648045.601576+09.410268 116.0 189.0    17.2617.89  17.61   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	4.818	03 02 23.82168	+09 24 33.2348	045.599257	+09.409232	0.060	0.060	12.706	0.300	11.898	0.300	12.079	0.400	11.389	0.500	1992.3200	1992.3200	1.9	4.0	1.5	4.0
2	5.131	03 02 23.54616	+09 24 40.1979	045.598109	+09.411166	0.087	0.087	16.910	0.400	16.030	0.400	16.224	0.400	15.481	0.500	1990.3800	1990.3800	28.1	5.8	-40.7	5.8
3	5.677	03 02 23.97629	+09 24 32.6091	045.599901	+09.409058	0.133	0.133	17.780	0.400	17.140	0.400	17.289	0.400	16.722	0.500	1979.2100	1979.2100	-280.8	7.8	88.4	7.8
4	7.740	03 02 24.37826	+09 24 36.9650	045.601576	+09.410268	0.133	0.133	17.890	0.400	17.610	0.400	17.673	0.400	17.376	0.500	1979.2100	1979.2100	116.0	7.8	189.0	7.8

%0a%0a%3cP%3e%0a%3cFONT%20SIZE=%27-1%27%3e%3cEM%3e%3cFONT%20COLOR=%27#0000FF%27>%3cB%3eNote:%20Zone%20-40/%2b50deg%3cP%3e%0a