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	0.959	11 27 18.38472	-74 30 33.2316	0150-08531569	171.826603	-74.509231			19.7	17.9	1981.741
2	8.998	11 27 19.43688	-74 30 41.9904	0150-08531979	171.830987	-74.511664			18.7	17.1	1981.741
3	15.078	11 27 19.97736	-74 30 20.6100	0150-08532192	171.833239	-74.505725			18.0	16.7	1981.741
4	18.804	11 27 18.95280	-74 30 52.8012	0150-08531806	171.828970	-74.514667			19.1	17.7	1981.741
5	21.895	11 27 12.93936	-74 30 30.5316	0150-08529541	171.803914	-74.508481			18.6	17.0	1981.741
6	22.718	11 27 22.81080	-74 30 20.2500	0150-08533302	171.845045	-74.505625			18.8	17.7	1981.741
7	25.898	11 27 24.24336	-74 30 44.6220	0150-08533817	171.851014	-74.512395			19.9	17.9	1981.741
8	28.186	11 27 13.93800	-74 30 12.1428	0150-08529930	171.808075	-74.503373			18.5	16.8	1981.741

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

Bjmag

%22>%5cFONT SIZE=-1mage_
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a
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1 8.69311 27 19.40304-74 30 41.7168S110131212864171.830846-74.5115881991.20317.96 0.43    3 2.57 0.10 215.14411 27 19.95192-74 30 20.4876S110131213033171.833133-74.5056911991.20317.51 0.4318.67 0.330 2.70 0.06 318.32311 27 18.89232-74 30 52.3476S110131212779171.828718-74.5145411991.20318.45 0.43    3 2.29 0.20 422.03011 27 12.92208-74 30 30.1500S110131212924171.803842-74.5083751991.20318.01 0.4319.22 0.343 2.40 0.04 522.66911 27 22.77072-74 30 20.1240S110131213042171.844878-74.5055901991.20318.41 0.43    3 2.89 0.38 628.40711 27 13.89024-74 30 12.0132S110131213055171.807876-74.5033371991.20317.94 0.4319.47 0.340 2.41 0.03 %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	1.167	11 27 18.35208	-74 30 33.0012	0154-0110698	171.826467	-74.509167	301	286	1984.9	0	0	4		19.63	20.91	20.57	18.35
2	9.140	11 27 19.49088	-74 30 42.0300	0154-0110710	171.831212	-74.511675	64	55	1983.7	0	0	4		17.55	19.46	17.85	17.58
3	15.003	11 27 19.99152	-74 30 20.7216	0154-0110715	171.833298	-74.505756	119	48	1983.7	0	0	4		17.01	18.65	17.12	16.97
4	18.847	11 27 18.97944	-74 30 52.8300	0154-0110706	171.829081	-74.514675	48	50	1983.7	0	0	4		18.52	20.04	18.85	18.34
5	20.086	11 27 19.75752	-74 30 14.9112	0154-0110713	171.832323	-74.504142	295	550	1989.2	0	0	2		20.36		20.41
6	21.710	11 27 12.98136	-74 30 30.6504	0154-0110677	171.804089	-74.508514	72	109	1983.7	0	0	4		17.38	19.25	17.85	17.17
7	22.745	11 27 22.83672	-74 30 20.3400	0154-0110726	171.845153	-74.505650	70	36	1983.7	0	0	4		18.50	19.66	18.50	18.23
8	25.641	11 27 24.19608	-74 30 44.4132	0154-0110731	171.850817	-74.512337	169	7	1984.8	-18	14	3		19.61	21.27	20.03
9	28.024	11 27 13.95888	-74 30 12.2832	0154-0110682	171.808162	-74.503412	112	57	1983.7	0	0	4		17.25	19.50	17.65	17.44

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

NOMAD1

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Bmag
mag

r_

Vmag
mag

r_

Rmag
mag

r_

Jmag
mag

Hmag
mag

Kmag
mag

R

1 1.16811 27 18.352008-74 30 33.000120154-0111870..171.8264667-74.5091667B 0.0 0.0 0.0 0.020.910B    20.570B         2 9.14011 27 19.490664-74 30 42.030000154-0111882YM171.8312111-74.5116750B 0.0 0.0 0.0 0.018.380Y    17.850B16.10615.44915.349   315.00411 27 19.991328-74 30 20.720160154-0111887YM171.8332972-74.5057556B 0.0 0.0 0.0 0.017.800Y17.000Y17.120B15.91615.56015.381   418.84711 27 18.979344-74 30 52.830000154-0111878..171.8290806-74.5146750B 0.0 0.0 0.0 0.020.040B    18.850B         520.08711 27 19.757328-74 30 14.910120154-0111885..171.8323222-74.5041417B 0.0 0.0 0.0 0.0        20.410B         621.71011 27 12.981336-74 30 30.650040154-0111848YM171.8040889-74.5085139B 0.0 0.0 0.0 0.018.380Y17.470Y17.850B16.19915.78815.605   722.74511 27 22.836672-74 30 20.340000154-0111898..171.8451528-74.5056500B 0.0 0.0 0.0 0.019.660B    18.500B         825.63911 27 24.196008-74 30 44.409960154-0111903..171.8508167-74.5123361B -18.0 10.0 14.0 0.021.270B    20.030B         928.02811 27 13.958664-74 30 12.279960154-0111853YM171.8081611-74.5034111B 0.0 0.0 0.0 0.018.380Y17.700Y17.650B16.11115.41015.169   %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	1.520	11 27 18.29856	-74 30 32.6484	S41I012923	171.826244	-74.509069	1991.203	20.08	21.44			3	1.41	0.08
2	8.690	11 27 19.40328	-74 30 41.7132	S41I012864	171.830847	-74.511587	1991.203	17.96	19.52		17.35	0	2.57	0.10
3	15.151	11 27 19.95216	-74 30 20.4804	S41I013033	171.833134	-74.505689	1991.203	17.51	18.67		16.82	0	2.70	0.06
4	18.425	11 27 18.86520	-74 30 52.4628	S41I012779	171.828605	-74.514573	1991.203	18.85	19.87		18.39	3	2.14	0.09
5	22.030	11 27 12.92232	-74 30 30.1464	S41I012924	171.803843	-74.508374	1991.203	18.01	19.22		17.39	3	2.40	0.04
6	22.596	11 27 22.75272	-74 30 20.1492	S41I013042	171.844803	-74.505597	1991.203	18.63	19.77		18.44	3	2.80	0.30
7	25.342	11 27 24.12888	-74 30 44.2836	S41I012863	171.850537	-74.512301	1991.203	19.69	21.92			3	1.74	0.10
8	28.228	11 27 25.33152	-74 30 37.2960	S41I034138	171.855548	-74.510360	1991.203	20.35				3	1.27	0.13
9	28.412	11 27 13.89048	-74 30 12.0060	S41I013055	171.807877	-74.503335	1991.203	17.94	19.47		17.22	0	2.41	0.03

%0a%0a

Full	_r arcsec	_RAJ2000 "h:m:s"	_DEJ2000 "d:m:s"	RAJ2000 deg	DEJ2000 deg	pmRA mas/yr	pmDE [****ClosingBrace(s)Inserted****]
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pmDE

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%22>%5cFONT SIZE=-1mas/yrJmag
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fl

1 1.46911 27 18.28416-74 30 32.7060171.826184-74.509085 -8.7 10.9      20.9119.6320.5718.35 4 0 2 9.04011 27 19.48104-74 30 41.9364171.831171-74.511649 2.6 -1.016.10615.350  19.4617.5517.8517.58 5 0 315.18811 27 19.96032-74 30 20.4552171.833168-74.505682 0.2 8.615.91615.381  18.6517.0117.1216.97 5 0 418.73211 27 18.95088-74 30 52.7292171.828962-74.514647 -7.1 5.3      20.0418.5218.8518.34 4 0 522.18411 27 12.89592-74 30 29.8800171.803733-74.508300 -13.5 35.916.19915.605  19.2517.3817.8517.17 5 0 622.76511 27 22.82088-74 30 20.2248171.845087-74.505618 -3.0 6.3      19.6618.5018.5018.23 4 0 725.45911 27 24.15960-74 30 44.2944171.850665-74.512304 -27.5 22.6      21.2719.6120.03   3 0 828.38611 27 13.92816-74 30 11.9196171.808034-74.503311 0.3 13.516.11215.169  19.5017.2517.6517.44 5 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	8.990	11 27 19.47819	-74 30 41.8858	XPM 030-0143948	171.831159	-74.511635	10.77	-3.17	9.99	-3.15	17.956	19.516		17.345	16.106	0.109	15.450	0.115	15.350	0.171	779697848	18.7	17.1	38	18.324129	0	0	M
2	15.246	11 27 19.95478	-74 30 20.3796	XPM 030-0143953	171.833145	-74.505661	-3.33	3.94	-4.11	3.96	17.514	18.666		16.816	15.916	0.099	15.561	0.134	15.381	0.187	779697825	18.0	16.7	38	18.324129	0	0	M
3	22.314	11 27 12.87214	-74 30 29.6927	XPM 030-0143887	171.803634	-74.508248	-13.03	37.26	-13.81	37.28	18.006	19.224		17.386	16.199	0.099	15.788	0.148	15.605	0.278	779673800	18.6	17.0	38	18.324118	0	0	M
4	28.464	11 27 13.92288	-74 30 11.8369	XPM 030-0143896	171.808012	-74.503288	-1.67	7.88	-2.45	7.90	17.939	19.467		17.221	16.112	0.087	15.411	0.107	15.169	0.172	779673819	18.5	16.8	38	18.324118	0	0	M

%0a%0a%5b%2a%2a%2a%2aClosingBrace%28s%29Inserted%2a%2a%2a%2a%5d">\scripttype='text/javascript' ts_init('!ext-tsv/qat2s_asu_7');

Note:

Full	_r arcsec	_RAJ2000 "h:m:s"	_DEJ2000 "d:m:s"	SPMID	RAJ2000 deg	e_ mas	DEJ2000 deg	e_ mas	pmRA mas/yr	e_ (...)	pmDE mas/yr	e_ (...)	Epoch yr	N1	N2	Nc	Bmag mag	Vmag mag	Jmag mag	Hmag mag	Kmag mag	2M	igal	A
1	15.098	11 27 19.965528	-74 30 20.56464	390377549	171.8331897	51.1	-74.5057124	51.2	4.54	3.57	2.40	3.60	1996.59	4	0	2	17.64	17.77	15.916	15.561	15.381	2M	0	A
2	22.019	11 27 12.908400	-74 30 30.52044	390377528	171.8037850	57.1	-74.5084779	57.3	-3.28	5.16	-3.67	5.37	1996.56	4	0	1	18.91	18.10	16.199	15.788	15.605	2M	0	A
3	28.222	11 27 13.896840	-74 30 12.23028	390377533	171.8079035	71.7	-74.5033973	71.6	-1.11	5.90	-3.47	5.86	1994.42	4	0	2	17.70	18.49	16.112	15.411	15.169	2M	0	A

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

%3cEM%3e%20%3cFONT%20COLOR=%27#CD5B45%27>_DEJ2000

%20

%22>%5cFONT SIZE=-1"d:m:s"RAJ2000
deg

DEJ2000
deg

e_RAJ2000
(...)

e_DEJ2000
arcsec

magBJ
mag

e_
mag

magRF
mag

e_
mag

magG
mag

e_
mag

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yr

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1 1.46911 27 18.28411-74 30 32.7062171.826184-74.509085 0.115 0.11521.443 0.30020.082 0.30020.323 0.40019.248 0.5001984.95001984.9500 -8.7 21.0 10.9 21.0 2 9.03911 27 19.48105-74 30 41.9360171.831171-74.511649 0.092 0.09219.516 0.30017.956 0.30018.196 0.40016.993 0.5001989.67001989.6700 2.6 10.1 -1.0 10.1 315.18811 27 19.96033-74 30 20.4547171.833168-74.505682 0.093 0.09318.666 0.30017.514 0.30017.742 0.40016.809 0.5001989.45001989.4500 0.2 10.2 8.6 10.2 418.73111 27 18.95084-74 30 52.7288171.828962-74.514647 0.115 0.11519.866 0.30018.846 0.30019.060 0.40018.218 0.5001983.75001983.7500 -7.1 19.7 5.3 19.7 522.18311 27 12.89595-74 30 29.8798171.803733-74.508300 0.099 0.09919.224 0.30018.006 0.30018.239 0.40017.261 0.5001988.08001988.0800 -13.5 11.2 35.9 11.2 622.76511 27 22.82084-74 30 20.2251171.845087-74.505618 0.115 0.11519.766 0.30018.626 0.30018.853 0.40017.928 0.5001983.75001983.7500 -3.0 19.7 6.3 19.7 725.45911 27 24.15962-74 30 44.2942171.850665-74.512304 0.133 0.13321.917 0.30019.686 0.30019.813 0.40018.222 0.5001984.90001984.9000 -27.5 21.0 22.6 21.0 828.38511 27 13.92815-74 30 11.9202171.808034-74.503311 0.085 0.08519.467 0.30017.939 0.30018.181 0.40016.997 0.5001991.20001991.2000 0.3 9.2 13.5 9.2 %0a%0a

Full	_r arcsec	_RAJ2000 "h:m:s"	_DEJ2000 "d:m:s"	RA_ICRS deg	e_ mas	DE_ICRS deg	e_ mas	Source	Plx mas	pmRA mas/yr	pmDE mas/yr	RADEcor	Dup	<FG> e-/s	e_ e-/s	<Gmag> mag	Var
1	1.593	11 27 18.211637222	-74 30 32.64131119	171.8258818218	4.625	-74.5090670309	4.124	5225256147164129792				-0.934	0	1.8296e+02	3.1817e+00	19.869	NOT_AVAILABLE
2	8.969	11 27 19.417840189	-74 30 42.00067534	171.8309076675	4.143	-74.5116668543	1.773	5225256147164125184				-0.982	0	1.1152e+03	4.8238e+00	17.906	NOT_AVAILABLE
3	15.108	11 27 19.974954027	-74 30 20.57194566	171.8332289751	4.300	-74.5057144293	1.823	5225256147164140032				-0.995	0	1.8770e+03	3.9697e+00	17.341	NOT_AVAILABLE
4	18.558	11 27 18.843662533	-74 30 52.60671453	171.8285152606	3.869	-74.5146129763	1.663	5225256112804380032				-0.976	0	5.6875e+02	2.6952e+00	18.637	NOT_AVAILABLE
5	22.277	11 27 12.856222764	-74 30 30.22169773	171.8035675949	0.918	-74.5083949160	0.416	5225256215883606656				-0.519	0	1.1172e+03	1.5767e+01	17.904	NOT_AVAILABLE
6	22.420	11 27 22.784456908	-74 30 20.60091034	171.8449352371	0.793	-74.5057224751	0.449	5225256147164140800				-0.501	0	4.5886e+02	2.0122e+00	18.871	NOT_AVAILABLE
7	25.039	11 27 24.045069482	-74 30 44.29425241	171.8501877895	2.171	-74.5123039590	1.059	5225256147164125056				-0.709	0	2.0125e+02	1.6003e+00	19.765	NOT_AVAILABLE
8	28.235	11 27 25.329606730	-74 30 37.43014275	171.8555400280	45.252	-74.5103972619	9.498	5225256151461246336				-0.380	0	1.3135e+02	1.8338e+00	20.229	NOT_AVAILABLE
9	28.463	11 27 13.855304670	-74 30 12.05479147	171.8077304361	0.517	-74.5033485532	0.234	5225256215883619072				-0.542	0	1.3089e+03	3.6118e+00	17.732	NOT_AVAILABLE
[****ClosingBrace(s)Inserted****]
9	28.463	11 27 13.855304670	-74 30 12.05479147	171.8077304361	0.517	-74.5033485532	0.234	5225256215883619072				-0.542	0	1.3089e+03	3.6118e+00	17.732	NOT_AVAILABLE

%22>\EndTABLESORT

Note: