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	3.628	17 18 32.74800	+41 39 58.4604	1275-09290141	259.636450	+41.666239			17.0	16.3	1954.515
2	5.704	17 18 32.22408	+41 40 05.5920	1275-09290065	259.634267	+41.668220			15.1	14.4	1954.515
3	6.853	17 18 32.17752	+41 40 06.6216	1275-09290059	259.634073	+41.668506			15.1	14.1	1953.450
4	8.215	17 18 33.01152	+41 39 54.9108	1275-09290185	259.637548	+41.665253			17.1	17.6	1954.515

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

bStel

%22>bDiam
arcsecb-r
magMflag

1 7.23117 18 32.13744+41 40 06.7800EO0753-0224921259.633906+41.66855011.29   1 20.00 50.3 0.8113.03   1 25.92 54.6 1.74   2 7.64317 18 32.10408+41 40 07.0212EO1135-0194939259.633767+41.66861712.93   1 30.83 45.8 0.7814.10   1 82.05 51.6 1.17   %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	7.850	17 18 32.11344	+41 40 07.3452	N13203124144	259.633806	+41.668707	1992.555	12.79	0.44	13.49	0.44	3	20.27	0.80

%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	1.115	17 18 32.58672	+41 40 00.2424	1316-0294177	259.635778	+41.666734	339	689	1967.7	-34	38	3	17.48	16.17			15.40
2	3.879	17 18 32.74752	+41 39 58.0824	1316-0294179	259.636448	+41.666134	999	999	1953.9	0	0	2	18.16	16.58
[****ClosingBrace(s)Inserted****]
">

%3cEM%3e2&%3cFONT%20COLOR=%27#CD5B45%27>%203.879&%3cFONT%20COLOR=%27#CD5B45%27>17%2018%2032.74752&%3cFONT%20COLOR=%27#CD5B45%27>%2b41%2039%2058.0824&1316-0294179&259.636448&%2b41.666134&999&999&1953.9&%20%20%20%20%200&%20%20%20%20%200&2&18.16&16.58&%20&%20&%20%3cBR%3e">\Ahref='VizieR-5?-ref=VIZ663e678e107b28&-out.add=.&-source=I/284/out&USNO-B1.0===1316-0294180&-out.orig=o' class='full'3 6.57317 18 32.88336+41 39 55.82161316-0294180259.637014+41.6655062011491966.1 -24 18317.6517.5816.69     4 6.81217 18 32.17872+41 40 06.58201316-0294173259.634078+41.668495549 931966.1 -6 22315.5214.4114.54     5 7.87617 18 32.10888+41 40 07.34161316-0294172259.633787+41.6687062421461973.7 0 0415.5314.31  13.3914.13 %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	1.115	17 18 32.586672	+41 40 00.23988	1316-0298264	.M	259.6357778	+41.6667333	B	-34.0	9.0	38.0	18.0	17.480	o			16.170	e	15.137	14.423	14.736
2	2.155	17 18 32.383344	+41 40 02.51004	1316-0298261	YM	259.6349306	+41.6673639	Y	-5.5	9.0	8.2	9.0	18.040	Y					14.804	14.047	14.352
3	3.880	17 18 32.747328	+41 39 58.07988	1316-0298266	..	259.6364472	+41.6661333	B	0.0	0.0	0.0	0.0	18.160	o			16.580	e
4	6.574	17 18 32.883336	+41 39 55.82016	1316-0298267	..	259.6370139	+41.6655056	B	-24.0	5.0	18.0	3.0	16.690	B			17.580	e
5	6.811	17 18 32.178672	+41 40 06.57984	1316-0298259	.M	259.6340778	+41.6684944	B	-6.0	14.0	22.0	2.0	14.540	B			14.410	e	15.301	13.759	13.403
6	7.876	17 18 32.108664	+41 40 07.34016	1316-0298258	YM	259.6337861	+41.6687056	B	0.0	0.0	0.0	0.0	18.270	o	16.970	Y	13.390	B	14.602	14.505	14.096
[****ClosingBrace(s)Inserted****]
6	7.876	17 18 32.108664	+41 40 07.34016	1316-0298258	YM	259.6337861	+41.6687056	B	0.0	0.0	0.0	0.0	18.270	o	16.970	Y	13.390	B	14.602	14.505	14.096

%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	8.778	17 18 32.02032	+41 40 07.7376	171832.0+414007		259.633418	+41.668816	17.032	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	7.853	17 18 32.11344	+41 40 07.3488	N5YU004144	259.633806	+41.668708	1992.555	12.79	13.49	14.03	12.84	3	20.27	0.80

%0a%0a

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

%22>arcsec ">\BegDIVclass='sort-down ' </A>string _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 0.14917 18 32.51400+41 40 00.8220259.635475+41.666895 -56.5 49.315.13814.73617.48  16.17  15.40 4 0 2 6.72217 18 32.88264+41 39 55.6200259.637011+41.665450 -30.0 13.0    17.6516.6917.58     3 0 3 6.88317 18 32.15016+41 40 06.4560259.633959+41.668460 -16.6 21.315.30213.40415.5214.5414.41     5 1 4 7.52317 18 32.11632+41 40 06.9708259.633818+41.668603 -0.2 -6.415.30213.40415.53  14.3113.3914.13 6 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	0.152	17 18 32.50391	+41 40 00.9517	XPM 263-0418998	259.635433	+41.666931	-62.27	50.74	-61.81	51.05					15.138		14.423		14.736	0.117	253092471	17.0	16.3	227	43.842030	0	0	M
2	7.518	17 18 32.11704	+41 40 06.9706	XPM 263-0418995	259.633821	+41.668603	-29.06	26.34	-28.60	26.65	12.791	13.489	14.033	12.844	14.603		14.505	0.097	14.096	0.110	253092477	15.1	14.4	227	43.842030	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