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	0.860	08 04 48.92352	+02 48 54.1116	0900-05696748	121.203848	+02.815031			19.9	19.2	1949.912
2	12.649	08 04 49.74744	+02 48 56.1708	0900-05696989	121.207281	+02.815603			14.5	14.7	1949.912
3	21.871	08 04 47.45136	+02 48 53.3232	0900-05696359	121.197714	+02.814812			17.2	16.9	1949.912
4	27.714	08 04 47.63736	+02 48 34.7832	0900-05696405	121.198489	+02.809662			18.6	17.6	1949.912
5	28.412	08 04 49.82472	+02 49 19.8012	0900-05697011	121.207603	+02.822167			19.6	18.1	1949.912

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

bClass

%22>bStel

bDiam
arcsecb-r
magMflag

1 1.08708 04 48.92472+02 48 53.8812EO0027-0393696121.203853+02.81496720.00L 0      20.53  -1 -1.39 4.9 0.53   212.41508 04 49.73088+02 48 56.2932EO0027-0393653121.207212+02.81563714.44  -1 1.85 12.9 0.0915.49  -1 -0.85 15.1 1.05   322.02608 04 47.43936+02 48 53.7012EO0027-0393703121.197664+02.81491716.81  -1 0.85 8.6 0.0418.05  -1 1.85 10.3 1.24   427.59008 04 47.61000+02 48 35.3520EO0027-0394005121.198375+02.80982017.44  -1 0.41 7.9 0.1019.45  -1 -0.83 6.8 2.01   528.50708 04 49.79352+02 49 20.1612EO0027-0393281121.207473+02.82226718.43  -1 1.07 6.5 0.1420.39   1 4.04 5.9 1.96   %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	12.378	08 04 49.73208	+02 48 55.6380	N221213210117	121.207217	+02.815455	1990.908	14.69	0.43	15.24	0.41	0	5.66	0.13
2	22.245	08 04 47.42688	+02 48 53.2152	N221213210099	121.197612	+02.814782	1990.908	17.27	0.43	17.82	0.41	0	3.40	0.04
3	27.870	08 04 49.76064	+02 49 19.7004	N221213210184	121.207336	+02.822139	1990.908	18.45	0.44			3	2.85	0.07
4	28.108	08 04 47.60880	+02 48 34.6464	N221213210021	121.198370	+02.809624	1990.908	17.66	0.44	18.91	0.42	3	3.19	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 [****ClosingBrace(s)Inserted****]
">

B2mag

%20

%22>%5cFONT SIZE=-1magR2mag
mag

Imag
mag

1 0.89708 04 48.88872+02 48 54.08280928-0205534121.203703+02.8150232813161965.6 0 0320.8219.1720.44     212.51608 04 49.74072+02 48 55.78200928-0205543121.207253+02.815495104 641976.8 2 -8515.1014.3215.6114.8414.37 316.64408 04 49.79952+02 49 04.85040928-0205545121.207498+02.8180143025211983.5 0 04  19.0820.4818.6317.59 419.81708 04 47.67600+02 48 47.69280928-0205527121.198650+02.8132486691601993.9 0 02      18.6318.09 522.13308 04 47.43336+02 48 53.42040928-0205522121.197639+02.814839 90 541976.9 0 0517.9516.4017.6516.8916.81 627.88108 04 47.61216+02 48 34.91280928-0205526121.198384+02.809698 291501976.9 0 0519.6717.2018.6317.2516.89 728.21108 04 49.78536+02 49 19.89120928-0205544121.207439+02.822192137 871976.9 0 0520.5517.8520.1318.1917.89 %0a%0a%3cP%3e%0a%3cFONT%20SIZE=%27-1%27%3e%3cEM%3e%3cFONT%20COLOR=%27#0000FF%27>%3cB%3eNote:%20More%20recent%20versions%20available:%20UCAC3%20%28I/315%29%20and%20UCAC4%20%28I/322%29;%20see%20also%20the%20UCAC%20home%20page%20at%20http://ad.usno.navy.mil/ucac/%3cP%3e%0a

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	12.403	08 04 49.733088	+02 48 55.79604	32693167	121.2072212	15	+02.8154989	25	15.07	2	2	-0.6	-6.2	776372788	14.210	13.864

%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 0.90008 04 48.888672+02 48 54.079920928-0206957..121.2037028+02.8150222B 0.0 0.0 0.0 0.020.440B    19.170e         212.40308 04 49.733064+02 48 55.796040928-0206966YM121.2072211+02.8154989C -0.5 5.6 -6.2 5.614.820Y14.410Y14.840B14.21013.92413.864   316.64108 04 49.799328+02 49 04.850040928-0206968..121.2074972+02.8180139B 0.0 0.0 0.0 0.020.480B    18.630B         419.81808 04 47.676000+02 48 47.689920928-0206950..121.1986500+02.8132472B 0.0 0.0 0.0 0.0        18.630B         522.13308 04 47.433336+02 48 53.420040928-0206945YM121.1976389+02.8148389B 0.0 0.0 0.0 0.017.290Y16.900Y16.890B16.32915.93815.560   627.88508 04 47.611992+02 48 34.909920928-0206949YM121.1983833+02.8096972B 0.0 0.0 0.0 0.018.350Y17.160Y17.250B16.36715.86215.439   728.21008 04 49.785336+02 49 19.890120928-0206967..121.2074389+02.8221917B 0.0 0.0 0.0 0.020.130B    18.190B         %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	12.380	08 04 49.73136	+02 48 55.8324	080449.7+024855		121.207214	+02.815509	14.965	4	14.210	13.924	13.864

%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	1.588	08 04 48.84912	+02 48 53.6076	N87Y016395	121.203538	+02.814891	1997.165		20.36			3	3.00	0.24
2	12.382	08 04 49.73232	+02 48 55.6380	N87Y010117	121.207218	+02.815455	1990.908	14.69	15.24	15.26	14.50	0	5.66	0.13
3	17.237	08 04 49.81992	+02 49 05.4300	N87Y010134	121.207583	+02.818175	1997.026	19.79	21.03			3	2.46	0.57
4	20.255	08 04 47.66352	+02 48 46.9944	N87Y014623	121.198598	+02.813054	1990.908	20.24			18.59	3	2.10	0.61
[****ClosingBrace(s)Inserted****]
">

%3cEM%3e4&%3cFONT%20COLOR=%27#CD5B45%27>20.255&%3cFONT%20COLOR=%27#CD5B45%27>08%2004%2047.66352&%3cFONT%20COLOR=%27#CD5B45%27>%2b02%2048%2046.9944&N87Y014623&121.198598&%2b02.813054&1990.908&20.24&%20&%20&18.59&3&%20%202.10&%200.61%3cBR%3e">\Ahref='VizieR-5?-ref=VIZ663d4d8d3a079c&-out.add=.&-source=I/305/out&GSC2.3===N87Y010099&-out.orig=o' class='full'522.24408 04 47.42688+02 48 53.2188N87Y010099121.197612+02.8147831990.90817.2717.8217.6916.910 3.40 0.04 623.72208 04 47.77416+02 49 11.5068N87Y021949121.199059+02.8198631983.037  21.64    3 1.68 0.32 727.87508 04 49.76088+02 49 19.7040N87Y010184121.207337+02.8221401990.90818.4520.1818.6517.783 2.85 0.07 828.10308 04 47.60904+02 48 34.6500N87Y010021121.198371+02.8096251990.90817.6618.9118.0817.133 3.19 0.07 %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
1	1.094	08 04 48.86856	+02 48 54.0072	121.203619	+02.815002	-10.7	-3.6			20.82	20.44	19.17			3	0
2	12.419	08 04 49.73424	+02 48 55.7784	121.207226	+02.815494	-4.3	-7.5	14.210	13.864	15.10	15.61	14.32	14.84	14.37	6	0
3	16.916	08 04 49.79952	+02 49 05.3004	121.207498	+02.818139	4.6	11.9				20.48	19.08	18.63	17.59	4	0
4	21.975	08 04 47.44368	+02 48 53.4672	121.197682	+02.814852	1.1	1.7	16.330	15.560	17.95	17.65	16.40	16.89	16.81	6	0
5	28.102	08 04 49.77336	+02 49 19.8624	121.207389	+02.822184	-8.0	-0.2			20.55	20.13	17.85	18.19	17.89	5	0
6	28.131	08 04 47.60208	+02 48 34.7112	121.198342	+02.809642	-8.3	-7.3	16.368	15.439	19.67	18.63	17.20	17.25	16.89	6	0

%0a%0a

Full	_r arcsec	_RAJ2000 "h:m:s"	_DEJ2000 "d:m:s"	[****ClosingBrace(s)Inserted****]
">

%22d:m:s%22&%">\BegDIVclass='sort-down ' </A>stringID

RAICRS
deg

DEICRS
deg

pmRAp
mas/yr

pmDEp
mas/yr

pmRAx
mas/yr

pmDEx
mas/yr

Fmag
mag

Bjmag
mag

Vmag
mag

Nmag
mag

Jmag
mag

e_
mag

Hmag
mag

e_
mag

Kmag
mag

e_
mag

2Mkey

Bmag
mag

Rmag
mag

Fld

dT
yr

fg

fs

M

112.38108 04 49.73162+02 48 55.7893XPM 185-0257168121.207215+02.815497 0.20 -5.21 -0.18 -5.1714.68515.24315.26414.50314.210 0.03013.924 0.03713.864 0.063 77637278814.514.7 54550.15912300M 221.75008 04 47.45831+02 48 53.5788XPM 185-0257147121.197743+02.814883 6.66 6.30 6.28 6.3417.27417.82417.69016.90516.330 0.11215.938 0.17715.560   77637278617.216.9 54550.15912300M 328.37108 04 47.59054+02 48 34.5454XPM 185-0257151121.198294+02.809596 -9.36 -3.60 -9.74 -3.5717.66318.91418.08217.12916.368 0.12715.862 0.16815.439 0.231 77637277518.617.6 54550.15912300M %0a%0a%3cP%3e%0a%3cFONT%20SIZE=%27-1%27%3e%3cEM%3e%3cFONT%20COLOR=%27#0000FF%27>%3cB%3eNote:%20%0a%25%25%25%20Introduction%20to%20UCAC4%20VizieR%20page%0a%3cEM%3e%25Note:%20%0a%20%20see%20the%20UCAC4%20document,%20and%20the%0a%20%20the%20fix%20for%20high%20proper%20motion%20stars.%0a%20%20The%20UCAC%20home%20page%20is%20available%20at%0a%20%20http://www.usno.navy.mil/USNO/astrometry/optical-IR-prod/ucac.%0a%20%20%3cBR%3ePlease%20%3cB%3eacknowledge%20the%20usage%0a%20%20of%20the%20UCAC4%0a%0a%25%3cP%3e%0a

Full	_r arcsec	_RAJ2000 "h:m:s"	_DEJ2000 "d:m:s"	UCAC4	RAJ2000 deg	DEJ2000 deg	ePos mas	f.mag mag	of	db	pmRA mas/yr	pmDE mas/yr	Jmag mag	Kmag mag	Bmag mag	Vmag mag	rmag mag	imag mag	H	A	b	h	Z	B	L	N	S
1	12.387	08 04 49.731888	+02 48 55.81908	465-038527	121.2072162	+02.8155053	47	15.165	0	0	-2.0	-1.4	14.210	13.864	15.675	15.126	15.043	15.007	0	0	0	0	0	0	0	1	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