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	9.547	18 31 03.46944	+11 31 51.6720	0975-11945968	277.764456	+11.531020			18.8	18.3	1950.539
2	11.802	18 31 03.74280	+11 31 48.9432	0975-11946311	277.765595	+11.530262			19.5	18.4	1950.539
3	19.048	18 31 02.38752	+11 32 02.2632	0975-11944623	277.759948	+11.533962			19.8	18.8	1950.539
4	19.698	18 31 03.90144	+11 31 41.2824	0975-11946509	277.766256	+11.528134			20.1	18.8	1950.539
5	23.092	18 31 04.63344	+11 31 42.3624	0975-11947419	277.769306	+11.528434			19.0	17.6	1950.539
6	24.147	18 31 04.69344	+11 31 41.7108	0975-11947501	277.769556	+11.528253			18.7	18.1	1950.539
7	25.497	18 31 02.23680	+11 31 46.5420	0975-11944437	277.759320	+11.529595			17.3	15.8	1950.539
8	28.265	18 31 05.60088	+11 32 01.8312	0975-11948644	277.773337	+11.533842			16.1	14.0	1950.539

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

Bjmag

%22>%5cFONT SIZE=-1mage_
magClass

a
pixe

1 9.91418 31 03.44736+11 31 51.3984N02022216703277.764364+11.5309441993.53518.16 0.44    3 2.49 0.17 212.54518 31 03.74568+11 31 48.2016N02022216702277.765607+11.5300561993.53518.12 0.44    3 2.44 0.07 318.03618 31 02.45808+11 32 02.4972N02022216931277.760242+11.5340271993.53518.24 0.45    3 3.35 0.39 421.09418 31 05.11392+11 32 00.1392N02022217015277.771308+11.5333721993.53517.85 0.4419.33 0.443 2.33 0.06 523.25018 31 04.61208+11 31 41.9304N02022216526277.769217+11.5283141993.53517.42 0.4319.11 0.443 3.93 0.41 625.78418 31 02.22576+11 31 46.2684N02022216642277.759274+11.5295191993.53515.88 0.4317.15 0.430 3.37 0.08 728.16018 31 05.59320+11 32 01.9932N02022217014277.773305+11.5338871993.53514.14 0.4315.74 0.430 4.81 0.07 829.54518 31 05.00592+11 32 22.9056N02022217294277.770858+11.5396961993.53516.83 0.4318.15 0.430 3.01 0.11 %0a%0a

Full	_r arcsec	_RAJ2000 "h:m:s"	_DEJ2000 "d:m:s"	ID	RAJ2000 "h:m:s"	DEJ2000 "d:m:s"	Vmag mag	o_RAs	o_DEs
1	28.329	18 31 05.604600	+11 32 02.03500	7DI24113	18 31 05.6046	+11 32 02.035	14.895	5	5

%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	1.504	18 31 03.62808	+11 32 02.0112	1015-0341596	277.765117	+11.533892	9	40	1970.5	0	0	2	20.28		20.42
2	9.930	18 31 03.46272	+11 31 51.3012	1015-0341593	277.764428	+11.530917	116	112	1975.2	0	0	5	19.65	18.13	19.41	17.08	17.15
3	12.182	18 31 03.73200	+11 31 48.5508	1015-0341599	277.765550	+11.530153	46	142	1975.3	0	0	5	20.44	18.32	19.82	17.93	17.23
4	17.630	18 31 02.49000	+11 32 03.0228	1015-0341566	277.760375	+11.534173	225	185	1980.9	0	0	4		18.54	20.09	17.38	17.15
[****ClosingBrace(s)Inserted****]
">

%3cEM%3e4&%3cFONT%20COLOR=%27#CD5B45%27>17.630&%3cFONT%20COLOR=%27#CD5B45%27>18%2031%2002.49000&%3cFONT%20COLOR=%27#CD5B45%27>%2b11%2032%2003.0228&1015-0341566&277.760375&%2b11.534173&225&185&1980.9&%20%20%20%20%200&%20%20%20%20%200&4&%20&18.54&20.09&17.38&17.15%3cBR%3e">\Ahref='VizieR-5?-ref=VIZ66363d8130060f&-out.add=.&-source=I/284/out&USNO-B1.0===1015-0341565&-out.orig=o' class='full'518.47718 31 02.42616+11 32 02.20201015-0341565277.760109+11.533945190 441975.8 14 2520.7918.7120.1217.4117.28 620.22618 31 03.88200+11 31 40.70281015-0341603277.766175+11.5279731561081970.7 -4 -10421.0118.7520.0217.44   721.02918 31 05.10888+11 31 59.86201015-0341644277.771287+11.5332951303611979.4 -152 -122319.88    16.3916.71 822.37418 31 05.20152+11 32 00.56041015-0341648277.771673+11.533489369 711975.7 0 0519.4216.8417.8416.6216.06 923.15018 31 04.61088+11 31 42.04201015-0341624277.769212+11.5283455002111975.2 0 0519.8317.4919.4116.6816.85 1024.39218 31 04.68744+11 31 41.33281015-0341627277.769531+11.5281482481411975.2 0 0519.3618.0419.0016.7517.13 1125.69118 31 02.23008+11 31 46.34041015-0341558277.759292+11.529539 37 521975.2 0 0517.6915.9917.0815.6515.27 1227.21218 31 04.75872+11 31 38.60041015-0341632277.769828+11.5273899999991992.4 0 02    18.99  17.17 1327.87418 31 05.57352+11 32 02.06161015-0341657277.773223+11.533906110 871975.2 -8 8516.3814.6515.7213.9813.48 1428.95118 31 03.91344+11 31 31.96201015-0341606277.766306+11.525545181 901970.5 0 0220.54  20.80     1529.75818 31 05.00880+11 32 23.15041015-0341641277.770870+11.539764 451291975.2 0 0518.6216.8217.7316.3116.14 %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	28.286	18 31 05.601408	+11 32 02.11524	35973419	277.7733392	15	+11.5339209	23	14.51	7	2	-4.0	10.9	877280085	12.684	12.019

%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 1.50418 31 03.628008+11 32 02.010121015-0347334..277.7651167+11.5338917B 0.0 0.0 0.0 0.020.420B                 2 9.93218 31 03.462672+11 31 51.300121015-0347331..277.7644278+11.5309167B 0.0 0.0 0.0 0.019.410B    17.080B         312.18318 31 03.732000+11 31 48.550081015-0347337..277.7655500+11.5301528B 0.0 0.0 0.0 0.019.820B    17.930B         417.63018 31 02.490000+11 32 03.019921015-0347303..277.7603750+11.5341722B 0.0 0.0 0.0 0.020.090B    17.380B         518.47918 31 02.425992+11 32 02.199841015-0347301..277.7601083+11.5339444B 14.0 5.0 2.0 1.020.120B    17.410B         620.22918 31 03.882000+11 31 40.699921015-0347342..277.7661750+11.5279722B -4.0 4.0 -10.0 3.020.020B    17.440B         721.02618 31 05.108664+11 31 59.859841015-0347382..277.7712861+11.5332944B -152.0 4.0 -122.0 12.019.880o    16.390B         821.24518 31 04.452672+11 31 42.759841015-0347358YM277.7685528+11.5285444Y 499.9 9.0 -335.5 9.0    17.940Y    16.57916.15515.666   922.37118 31 05.201328+11 32 00.560041015-0347386..277.7716722+11.5334889B 0.0 0.0 0.0 0.017.840B    16.620B         1023.15018 31 04.610664+11 31 42.039841015-0347363..277.7692111+11.5283444B 0.0 0.0 0.0 0.019.410B    16.680B         1124.39418 31 04.687344+11 31 41.329921015-0347366..277.7695306+11.5281472B 0.0 0.0 0.0 0.019.000B    16.750B         1225.69218 31 02.230008+11 31 46.340041015-0347295YM277.7592917+11.5295389B 0.0 0.0 0.0 0.016.630Y16.150Y15.650B14.78514.31314.198   1327.21218 31 04.758672+11 31 38.600041015-0347370..277.7698278+11.5273889B 0.0 0.0 0.0 0.018.990B                 1428.28618 31 05.601408+11 32 02.114881015-0347395YM277.7733392+11.5339208C -4.0 5.8 10.9 5.915.200Y14.420Y13.980B12.68412.08912.019   1528.95318 31 03.913344+11 31 31.959841015-0347345..277.7663056+11.5255444B 0.0 0.0 0.0 0.020.800B                 1629.75618 31 05.008656+11 32 23.150041015-0347379YM277.7708694+11.5397639B 0.0 0.0 0.0 0.017.190Y17.060Y16.310B15.43214.94814.810   %0a%0a

Full	_r arcsec	_RAJ2000 "h:m:s"	_DEJ2000 "d:m:s"	PM2000	RAJ2000 "h:m:s"	DEJ2000 "d:m:s"	pmRA mas/yr	pmDE mas/yr	Vmag mag	EpRA yr	EpDE yr	2MASS	TYC1	TYC2	TYC3
1	28.340	18 31 05.605438	+11 32 02.00645	1483627	18 31 05.6055	+11 32 01.970	-0.2	5.2	14.840	1992.99	1992.65	18310559+1132020

%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	25.821	18 31 02.22840	+11 31 46.1460	183102.2+113146		277.759285	+11.529485	16.191	2	14.786	14.313	14.198
2	28.293	18 31 05.60208	+11 32 02.0616	183105.6+113202		277.773342	+11.533906	14.478	2	12.684	12.089	12.019
3	29.508	18 31 05.01648	+11 32 22.7184	183105.0+113222		277.770902	+11.539644	17.160	2	15.432	14.948

%0a%22>">ts_init('!ext/cmc14_8');

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	2.007	18 31 03.62520	+11 32 02.5512	N1PL070973	277.765105	+11.534042	1993.535	20.24	20.68			3	1.52	0.42
2	8.218	18 31 04.21824	+11 31 58.5228	N1PL006826	277.767576	+11.532923	1993.535	19.55	21.46			3	1.41	0.07
3	9.909	18 31 03.44760	+11 31 51.4020	N1PL006703	277.764365	+11.530945	1993.535	18.16	19.58	18.56	17.59	3	2.49	0.17
4	12.541	18 31 03.74592	+11 31 48.2052	N1PL006702	277.765608	+11.530057	1993.535	18.12	19.85	18.48	17.57	3	2.44	0.07
5	14.555	18 31 04.45944	+11 32 09.6720	N1PL086421	277.768581	+11.536020	1993.535	20.09				3	1.54	0.44
6	18.033	18 31 02.45832	+11 32 02.5008	N1PL006931	277.760243	+11.534028	1993.535	18.24	20.40		17.72	3	3.35	0.39
7	20.215	18 31 03.88488	+11 31 40.7208	N1PL006484	277.766187	+11.527978	1993.535	18.62	20.14		17.98	3	2.07	0.13
8	21.097	18 31 05.11416	+11 32 00.1428	N1PL007015	277.771309	+11.533373	1993.535	17.85	19.33		17.11	3	2.33	0.06
9	23.250	18 31 04.61232	+11 31 41.9340	N1PL006526	277.769218	+11.528315	1993.535	17.42	19.11	18.16	17.00	3	3.93	0.41
10	25.779	18 31 02.22600	+11 31 46.2720	N1PL006642	277.759275	+11.529520	1993.535	15.88	17.15	16.49	15.27	0	3.37	0.08
11	26.148	18 31 04.12848	+11 32 26.0088	N1PL007304	277.767202	+11.540558	1993.535	19.34	21.16			3	1.57	0.04
12	28.160	18 31 05.59320	+11 32 01.9932	N1PL007014	277.773305	+11.533887	1993.535	14.14	15.74	14.67	13.34	0	4.81	0.07
13	28.170	18 31 02.43288	+11 32 22.1100	N1PL071074	277.760137	+11.539475	1993.535	20.13	21.23			3	1.60	0.36
14	28.916	18 31 03.87840	+11 31 31.9404	N1PL070813	277.766160	+11.525539	1993.535	19.31	21.21			3	1.84	0.21
15	29.550	18 31 05.00616	+11 32 22.9092	N1PL007294	277.770859	+11.539697	1993.535	16.83	18.15	17.23	16.23	0	3.01	0.11

%0a%22>ts_init('!ext/gsc2.3_9');