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	4.678	12 02 47.00136	+02 24 01.8432	0900-07060852	180.695839	+02.400512			18.1	19.0	1955.298

%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	0.260	12 02 46.86000	+02 24 06.3000	EO1611-0188990	180.695250	+02.401750	19.78		-1	2.08	4.8	0.40	19.22		1	16.80	16.7	-0.56	*
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%3cEM%3e1&%3cFONT%20COLOR=%27#CD5B45%27>%200.260&%3cFONT%20COLOR=%27#CD5B45%27>12%2002%2046.86000&%3cFONT%20COLOR=%27#CD5B45%27>%2b02%2024%2006.3000&EO1611-0188990&180.695250&%2b02.401750&19.78&%20&-1&%20%20%202.08&%20%20%204.8&%200.40&19.22&%20&%201&%20%2016.80&%20%2016.7&%20-0.56&%2a%3cBR%3e">\Ahref='VizieR-5?-ref=VIZ6640f8102713e8&-out.add=.&-source=I/267/out&APM-ID===EO1611-0188945&-out.orig=o' class='full'2 5.18412 02 47.01744+02 24 10.7712EO1611-0188945180.695906+02.40299219.70   2 4.75 5.4 0.4322.35L 0     2.65   3 8.49812 02 47.30280+02 24 00.6012EO1611-0189046180.697095+02.40016719.91   1 4.32 4.8 0.4922.35L 0     2.44   %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	1.809	12 02 46.85328	+02 24 04.2912	N12000313405	180.695222	+02.401192	1996.290	17.54	0.44	17.40	0.42	3	5.58	0.20

%0a%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	0.091	12 02 46.87536	+02 24 06.1128	0924-0278775	180.695314	+02.401698	171	873	1982.6	46	34	3	18.31		16.79	19.27
2	1.123	12 02 46.80600	+02 24 05.4900	0924-0278773	180.695025	+02.401525	324	555	1976.2	0	0	4	18.72	18.82	17.60	18.46
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%3cEM%3e2&%3cFONT%20COLOR=%27#CD5B45%27>%201.123&%3cFONT%20COLOR=%27#CD5B45%27>12%2002%2046.80600&%3cFONT%20COLOR=%27#CD5B45%27>%2b02%2024%2005.4900&0924-0278773&180.695025&%2b02.401525&324&555&1976.2&%20%20%20%20%200&%20%20%20%20%200&4&18.72&18.82&17.60&18.46&%20%3cBR%3e">\Ahref='VizieR-5?-ref=VIZ6640f8102713e8&-out.add=.&-source=I/284/out&USNO-B1.0===0924-0278776&-out.orig=o' class='full'3 2.38112 02 46.93752+02 24 03.93120924-0278776180.695573+02.401092 51 361983.2 30 -143  18.6515.8018.79   4 3.33912 02 46.75608+02 24 03.21120924-0278771180.694817+02.4008929999991976.2 0 0418.5519.7916.2819.15   5 5.02212 02 46.99416+02 24 01.42200924-0278777180.695809+02.4003955403951969.6 0 0318.6919.38  19.21   6 9.42412 02 46.94088+02 23 56.72040923-0281629180.695587+02.3990893642291976.7 0 0220.15  20.02     %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	0.090	12 02 46.875336	+02 24 06.10992	0924-0280656	..	180.6953139	+02.4016972	B	46.0	6.0	34.0	33.0	16.790	B			19.270	B
2	1.123	12 02 46.806000	+02 24 05.49000	0924-0280654	..	180.6950250	+02.4015250	B	0.0	0.0	0.0	0.0	17.600	B			18.460	B
3	2.381	12 02 46.937328	+02 24 03.93012	0924-0280657	..	180.6955722	+02.4010917	B	30.0	1.0	-14.0	1.0	15.800	B			18.790	B
4	3.340	12 02 46.756008	+02 24 03.21012	0924-0280652	..	180.6948167	+02.4008917	B	0.0	0.0	0.0	0.0	16.280	B			19.150	B
5	5.023	12 02 46.993992	+02 24 01.41984	0924-0280658	..	180.6958083	+02.4003944	B	0.0	0.0	0.0	0.0	18.690	o			19.210	B
6	9.424	12 02 46.940664	+02 23 56.72004	0923-0283657	..	180.6955861	+02.3990889	B	0.0	0.0	0.0	0.0	20.020	B
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6	9.424	12 02 46.940664	+02 23 56.72004	0923-0283657	..	180.6955861	+02.3990889	B	0.0	0.0	0.0	0.0	20.020	B

%22>\EndTABLESORT

Note: This version of the GSC-II has no proper motions, but the limits on brightness which existed on GSC2.2 (F<18.5, B_j<19.5) were removed.

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	2.603	12 02 46.69704	+02 24 06.3792	N4R1008705	180.694571	+02.401772	1998.327	19.43				3	2.57	0.37
2	3.937	12 02 46.90032	+02 24 02.1744	N4R1003405	180.695418	+02.400604	1998.327	20.26	17.40	19.35		3	2.08	0.55

%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****]
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fl

%22> 1 0.32012 02 46.86432+02 24 06.3936180.695268+02.401776 37.7 33.1    18.3116.79  19.27   3 0 2 1.60212 02 46.77696+02 24 05.2848180.694904+02.401468 -12.9 -27.1    18.7217.6018.8218.46   4 1 3 2.12912 02 46.72992+02 24 06.4728180.694708+02.401798 9.4 65.9    18.5516.2819.7919.15   4 0 4 2.41112 02 46.92744+02 24 03.8340180.695531+02.401065 22.1 -23.2      15.8018.6518.79   3 0 5 4.78512 02 46.99008+02 24 01.6524180.695792+02.400459 2.8 -3.7    18.69  19.3819.21   3 0 6 9.51312 02 46.90608+02 23 56.5872180.695442+02.399052 -15.9 -14.8    20.1520.02       2 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	0.320	12 02 46.86436	+02 24 06.3939	180.695268	+02.401776	0.133	0.133	16.790	0.400	19.270	0.400	18.777	0.400	20.528	0.500	1982.6400	1982.6400	37.7	6.9	33.1	6.9
2	1.602	12 02 46.77692	+02 24 05.2854	180.694904	+02.401468	0.115	0.115	17.600	0.400	18.460	0.400	18.187	0.400	18.775	0.500	1976.2800	1976.2800	-12.9	5.8	-27.1	5.8
3	2.411	12 02 46.92747	+02 24 03.8340	180.695531	+02.401065	0.133	0.133	15.800	0.400	18.790	0.400	18.397	0.400	20.448	0.500	1983.2800	1983.2800	22.1	6.7	-23.2	6.7
4	3.069	12 02 46.67667	+02 24 05.0558	180.694486	+02.401404	0.141	0.121	16.280	0.400	19.434	0.300	19.786	0.190	19.716	0.204	2000.3300	2000.3300	9.4	5.5	65.9	6.5
5	3.950	12 02 46.97268	+02 24 02.4482	180.695719	+02.400680	0.416	0.168	17.400	0.300	20.263	0.300	18.127	0.092	17.513	0.119	2000.3300	2000.3300	2.8	7.0	-3.7	7.0

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

%20

%22>%5cFONT SIZE=-1dege_
mas

DEICRS
deg

e_
mas

ID

Type

pmRA
mas/yr

e_
(...)

pmDE
mas/yr

e_
(...)

Nobs

Dt
yr

Rmag
mag

Bmag
mag

Nmag
mag

Vmag
mag

Jmag
mag

Hmag
mag

Kmag
mag

1 2.19612 02 46.892738+02 24 03.91508180.6953864 231.00+02.4010875 323.0055309+00034054 4.6 12.3 7.2 17.2 739.026 20.263 17.400   19.351       %0a%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"	RA_ICRS deg	DE_ICRS deg	rmag mag	pmRA mas/yr	e_ (...)	pmxRA mas/yr	e_ (...)	Chi2RA	pmGRA mas/yr	pmDE mas/yr	e_ (...)	pmxDE mas/yr	e_ (...)	Chi2DE	pmGDE mas/yr	Nobs	Flag	PS1	Gaia	DR9+DR12	Sloan	2M
1	2.802	12 02 46.7034673993	+02 24 04.904166779	180.69456655768	+02.40140155352	20.944899	-11.230	75.882	-11.230	75.882	1.77793e-02		14.143	51.225	14.143	51.225	1.16069e+00		3	0	PS1	Gaia	DR9+DR12	Sloan	2M
2	3.693	12 02 46.9312133814	+02 24 01.904859996	180.69565694943	+02.40073203089	20.944674	39.647	65.453	39.647	65.453	2.61460e-01		73.045	45.946	73.045	45.946	4.07708e+00		3	0	PS1	Gaia	DR9+DR12	Sloan	2M

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