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	0.467	08 40 30.66600	+17 57 23.0508	1050-05820109	130.127775	+17.956403			17.7	15.7	1954.972

%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	0.850	08 40 30.64152	+17 57 22.8924	EO1311-0109341	130.127673	+17.956359	15.43		1	9.57	15.8	0.16	17.59		1	11.75	15.2	2.16
[****ClosingBrace(s)Inserted****]
">

%3cEM%3e1&%3cFONT%20COLOR=%27#CD5B45%27>%200.850&%3cFONT%20COLOR=%27#CD5B45%27>08%2040%2030.64152&%3cFONT%20COLOR=%27#CD5B45%27>%2b17%2057%2022.8924&EO1311-0109341&130.127673&%2b17.956359&15.43&%20&%201&%20%20%209.57&%20%2015.8&%200.16&17.59&%20&%201&%20%2011.75&%20%2015.2&%20%202.16&%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	0.767	08 40 30.64512	+17 57 22.9860	N23131208029	130.127688	+17.956385	1989.853	15.66	0.42	15.98	0.42	3	5.74	0.22

%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	0.793	08 40 30.64680	+17 57 22.8708	1079-0204511	130.127695	+17.956353	68	83	1977.3	0	0	5	17.58	15.09	15.63	15.13	14.91
2	5.895	08 40 30.40080	+17 57 19.1232	1079-0204508	130.126670	+17.955312	156	999	1972.4	0	0	2		19.23		19.02
[****ClosingBrace(s)Inserted****]
">

%3cEM%3e2&%3cFONT%20COLOR=%27#CD5B45%27>%205.895&%3cFONT%20COLOR=%27#CD5B45%27>08%2040%2030.40080&%3cFONT%20COLOR=%27#CD5B45%27>%2b17%2057%2019.1232&1079-0204508&130.126670&%2b17.955312&156&999&1972.4&%20%20%20%20%200&%20%20%20%20%200&2&%20&19.23&%20&19.02&%20%3cBR%3e">\Ahref='VizieR-5?-ref=VIZ6629368133ec30&-out.add=.&-source=I/284/out&USNO-B1.0===1079-0204510&-out.orig=o' class='full'3 6.52008 40 30.61008+17 57 29.66041079-0204510130.127542+17.958239999 921966.5 -2 50319.8118.91  19.73   4 8.95108 40 30.20688+17 57 17.64001079-0204506130.125862+17.954900429 441950.0 -4 -43    20.6119.3815.30 %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	0.795	08 40 30.646656	+17 57 22.87008	1079-0208799	YM	130.1276944	+17.9563528	B	0.0	0.0	0.0	0.0	17.920	Y	16.600	Y	15.130	B	15.269	14.640	14.227
2	5.898	08 40 30.400656	+17 57 19.11996	1079-0208796	..	130.1266694	+17.9553111	B	0.0	0.0	0.0	0.0					19.020	B
3	6.520	08 40 30.610008	+17 57 29.66004	1079-0208798	..	130.1275417	+17.9582389	B	-2.0	54.0	50.0	2.0	19.810	o			19.730	B
4	8.954	08 40 30.206664	+17 57 17.64000	1079-0208794	..	130.1258611	+17.9549000	B	-4.0	0.0	-4.0	0.0	20.610	B			19.380	B

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

%22h:m:s%22&%">\BegDIVclass='sort-down ' </A>string _DEJ2000
"d:m:s"CMC14

f_

RAICRS
degDEICRS
degr'mag
magNt

Jmag
magHmag
magKsmag
mag 1 0.86808 40 30.66288+17 57 22.5216084030.6+175722  130.127762+17.95625616.730 115.27014.64014.228 %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	0.762	08 40 30.64536	+17 57 22.9896	N920008029	130.127689	+17.956386	1989.853	15.66	15.98	16.52	15.57	3	5.74	0.22

%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	0.775	08 40 30.64896	+17 57 22.8528	130.127704	+17.956348	-3.9	-3.1	15.270	14.228	17.58	15.63	15.09	15.13	14.91	6	0
[****ClosingBrace(s)Inserted****]
">

%3cEM%3e1&%3cFONT%20COLOR=%27#CD5B45%27>%200.775&%3cFONT%20COLOR=%27#CD5B45%27>08%2040%2030.64896&%3cFONT%20COLOR=%27#CD5B45%27>%2b17%2057%2022.8528&130.127704&%2b17.956348&%20%20%20%20-3.9&%20%20%20%20-3.1&15.270&14.228&17.58&15.63&15.09&15.13&14.91&%206&%200%3cBR%3e">\Ahref='VizieR-5?-ref=VIZ6629368133ec30&-out.add=.&-source=I/317/sample&PPMXL===3307566181527740352' class='full'2 4.95308 40 30.40776+17 57 20.4840130.126699+17.955690 -1.7 28.0        19.2319.02   2 0 3 6.40808 40 30.62232+17 57 29.5776130.127593+17.958216 6.8 45.6    19.81  18.9119.73   3 1 4 8.89008 40 30.21216+17 57 17.6436130.125884+17.954901 13.9 -4.6      20.61  19.3815.30 3 0 %0a%0a

Full	_r arcsec	_RAJ2000 "h:m:s"	_DEJ2000 "d:m:s"	ID	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
1	0.803	08 40 30.64728	+17 57 22.8384	XPM 215-0280841	130.127697	+17.956344	-5.67	4.04	-5.46	4.36	15.656	15.976	16.522	15.565	15.270	0.061	14.640	0.069	14.228	0.066	113909579	17.7	15.7	426	42.880848	0	0	M

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