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	0.425	11 42 52.57416	-49 20 03.7608	0375-14313158	175.719059	-49.334378			18.2	17.3	1980.093
2	6.108	11 42 52.86144	-49 19 57.8820	0375-14313338	175.720256	-49.332745			18.9	17.7	1980.093
3	7.447	11 42 53.28888	-49 20 06.6912	0375-14313618	175.722037	-49.335192			15.8	15.3	1980.093
4	16.183	11 42 54.25416	-49 20 04.6500	0375-14314200	175.726059	-49.334625			17.8	16.8	1980.093
5	16.297	11 42 52.71336	-49 19 47.1828	0375-14313229	175.719639	-49.329773			20.7	17.7	1980.093
6	26.287	11 42 50.97552	-49 20 24.3708	0375-14312236	175.712398	-49.340103			18.1	17.2	1980.093
7	27.362	11 42 52.32552	-49 20 30.6708	0375-14313025	175.718023	-49.341853			21.5	17.6	1980.093
8	29.852	11 42 53.48280	-49 20 32.0316	0375-14313730	175.722845	-49.342231			18.4	17.2	1980.093

%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_
magClass

a
pixe

1 0.82711 42 52.51992-49 20 03.2964S11100303929175.718833-49.3342491998.37817.39 0.43    3 2.43 0.19 2 6.35111 42 52.85784-49 19 57.6012S11100303942175.720241-49.3326671998.37818.20 0.52    3 1.48 0.11 3 7.11711 42 53.25480-49 20 06.6192S11100303928175.721895-49.3351721998.37815.20 0.42    3 5.36 0.39 426.48611 42 50.94936-49 20 24.4248S11100303868175.712289-49.3401181998.37817.59 0.44    3 2.42 0.20 529.14011 42 53.42232-49 20 31.4628S11100303827175.722593-49.3420731998.37817.68 0.44    3 2.26 0.17 %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	0.330	11 42 52.58880	-49 20 03.7428	0406-0257924	175.719120	-49.334373	221	64	1984.4	0	0	4		17.60	18.33	17.37	16.94
2	5.676	11 42 52.55016	-49 19 57.7920	0406-0257923	175.718959	-49.332720	433	99	1987.6	0	0	2		19.50		19.25
3	6.161	11 42 52.87200	-49 19 57.8712	0406-0257927	175.720300	-49.332742	134	114	1984.4	0	0	4		18.50	19.06	18.51	18.24
4	7.948	11 42 53.33088	-49 20 06.9900	0406-0257932	175.722212	-49.335275	81	486	1984.4	20	-16	4		15.45	16.20	15.37	14.70
5	16.168	11 42 54.25152	-49 20 04.7904	0406-0257940	175.726048	-49.334664	129	62	1984.4	0	0	4		16.76	18.11	17.10	16.38
6	16.540	11 42 52.75488	-49 19 46.9704	0406-0257925	175.719812	-49.329714	187	25	1984.1	18	12	3		19.52	20.97	19.31
7	26.293	11 42 50.97744	-49 20 24.3924	0406-0257910	175.712406	-49.340109	90	69	1984.4	0	0	4		17.58	18.33	17.87	17.59
8	26.827	11 42 50.44488	-49 19 46.8732	0406-0257905	175.710187	-49.329687	258	999	1986.8	0	0	3		18.60		17.83	16.98
9	27.391	11 42 52.32816	-49 20 30.7032	0406-0257918	175.718034	-49.341862	260	50	1980.0	0	0	2		19.79	21.72
10	29.852	11 42 53.48280	-49 20 32.0316	0406-0257937	175.722845	-49.342231	49	25	1984.4	0	0	4		17.57	18.76	17.77	17.25

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

%22h:m:s%22&%">\BegDIVclass='sort-down ' </A>string _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 0.32811 42 52.588656-49 20 03.739920406-0270853YM175.7191194-49.3343722B 0.0 0.0 0.0 0.018.330B17.400Y17.370B16.25615.35215.180   2 5.67811 42 52.549992-49 19 57.789840406-0270852..175.7189583-49.3327194B 0.0 0.0 0.0 0.0        19.250B         3 6.16211 42 52.872000-49 19 57.870120406-0270856..175.7203000-49.3327417B 0.0 0.0 0.0 0.019.060B    18.510B         4 7.94611 42 53.330664-49 20 06.990000406-0270861YM175.7222111-49.3352750B 20.0 4.0 -16.0 29.018.020Y17.350Y15.370B14.13013.67913.621   516.16611 42 54.251328-49 20 04.790040406-0270869..175.7260472-49.3346639B 0.0 0.0 0.0 0.018.110B    17.100B         616.54011 42 52.754664-49 19 46.970040406-0270854..175.7198111-49.3297139B 18.0 10.0 12.0 1.020.970B    19.310B         726.29211 42 50.977344-49 20 24.389880406-0270839YM175.7124056-49.3401083B 0.0 0.0 0.0 0.017.960Y17.690Y17.870B16.67916.41115.885   826.83111 42 50.444664-49 19 46.869960406-0270834..175.7101861-49.3296861B 0.0 0.0 0.0 0.0        17.830B         927.38811 42 52.327992-49 20 30.699960406-0270847..175.7180333-49.3418611B 0.0 0.0 0.0 0.021.720B    19.790e         1029.85111 42 53.482656-49 20 32.030160406-0270866YM175.7228444-49.3422306B 0.0 0.0 0.0 0.018.760B17.520Y17.770B16.19815.70215.202   %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	0.826	11 42 52.52016	-49 20 03.2892	S45O003929	175.718834	-49.334247	1998.378	17.39		17.88	17.09	3	2.43	0.19
2	6.358	11 42 52.85808	-49 19 57.5940	S45O003942	175.720242	-49.332665	1998.378	18.20		17.96	18.20	3	1.48	0.11
3	7.113	11 42 53.25480	-49 20 06.6120	S45O003928	175.721895	-49.335170	1998.378	15.20		15.55	14.92	3	5.36	0.39
4	26.483	11 42 50.94936	-49 20 24.4212	S45O003868	175.712289	-49.340117	1998.378	17.59		17.80	17.53	3	2.42	0.20
5	29.134	11 42 53.42256	-49 20 31.4556	S45O003827	175.722594	-49.342071	1998.378	17.68		17.99	17.25	3	2.26	0.17

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

%27%29%22%20onMouseOut=%22laz%28%29%22>r1mag

%20

%22>%5cFONT SIZE=-1magr2mag
mag

imag
mag

No

fl

1 0.81911 42 52.52208-49 20 03.6492175.718842-49.334347 -26.0 4.916.25615.181  18.3317.6017.3716.94 5 0 2 6.17511 42 52.83192-49 19 57.6876175.720133-49.332691 -11.5 4.4      19.0618.5018.5118.24 4 0 3 7.49611 42 53.28120-49 20 06.9468175.722005-49.335263 -3.9 -16.614.13013.621  16.2015.4515.3714.70 5 0 415.51011 42 54.18480-49 20 04.6968175.725770-49.334638 -27.8 1.1      18.1116.7617.1016.38 4 0 516.62911 42 52.72080-49 19 46.8552175.719670-49.329682 7.7 17.1      20.9719.5219.31   3 0 626.10811 42 50.99568-49 20 24.2952175.712482-49.340082 16.4 3.216.68015.886  18.3317.5817.8717.59 5 0 729.54611 42 53.43408-49 20 31.8516175.722642-49.342181 -22.5 10.316.19815.203  18.7617.5717.7717.25 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	0.869	11 42 52.51682	-49 20 03.6492	XPM 081-0503254	175.718820	-49.334347	-25.01	2.60	-25.85	2.41					16.256	0.101	15.353	0.096	15.181	0.149	431048992	18.2	17.3	216	19.260614	0	0	M
2	7.478	11 42 53.27951	-49 20 06.9396	XPM 081-0503269	175.721998	-49.335261	-1.20	-15.42	-2.04	-15.60					14.130	0.029	13.680	0.032	13.621	0.037	431048986	15.8	15.3	216	19.260614	0	0	M
3	25.901	11 42 51.02062	-49 20 24.2194	XPM 081-0503224	175.712586	-49.340061	24.60	4.66	23.76	4.47					16.680	0.134	16.411		15.886	0.261	431048967	18.1	17.2	216	19.260614	0	0	M
4	29.516	11 42 53.43218	-49 20 31.8266	XPM 081-0503273	175.722634	-49.342174	-21.84	7.30	-22.68	7.11					16.198	0.096	15.703	0.133	15.203	0.159	431048959	18.4	17.2	216	19.260614	0	0	M

%0ats_init%28%27!ext-tsv/qat2s_asu_7%27%29;">\Endscript

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	0.649	11 42 52.537584	-49 20 03.34428	2320635464	175.7189066	158.3	-49.3342623	154.2	-4.60	6.56	16.32	6.15	1980.23	2	0	1	18.13	18.22	16.256	15.353	15.181	2M	0	A
2	7.430	11 42 53.275224	-49 20 06.91548	2320635470	175.7219801	22.6	-49.3352543	22.6	-9.93	2.29	4.19	2.32	2004.20	2	0	2	16.08	15.80	14.130	13.680	13.621	2M	0	A
3	26.420	11 42 50.961048	-49 20 24.42984	2320635459	175.7123377	108.0	-49.3401194	106.9	-11.34	7.11	-4.72	6.66	1991.94	2	0	1	18.99	18.08	16.680	16.411	15.886	2M	0	A

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

%22d:m:s%22&%">\BegDIVclass='sort-down ' </A>stringUCAC4

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 7.56011 42 53.283048-49 20 07.04832204-056115175.7220127-49.3352912 13115.7940 0 -7.8 -1.214.13013.62116.64315.66815.32915.125000000001 %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 "d:m:s"	RAJ2000 deg	DEJ2000 deg	e_RAJ2000 (...)	e_DEJ2000 arcsec	magBJ mag	e_ mag	magRF mag	e_ mag	magG mag	e_ mag	magGrvs mag	e_ mag	alphaEpoch yr	deltaEpoch yr	pmRA mas/yr	e_ (...)	pmDE mas/yr	e_ (...)
1	0.819	11 42 52.52203	-49 20 03.6488	175.718842	-49.334347	0.085	0.085	18.330	0.400	17.394	0.300	17.596	0.400	16.813	0.500	1991.1500	1991.1500	-26.0	10.1	4.9	10.1
2	6.175	11 42 52.83194	-49 19 57.6879	175.720133	-49.332691	0.115	0.115	19.060	0.400	18.197	0.300	18.388	0.400	17.657	0.500	1984.4100	1984.4100	-11.5	21.2	4.4	21.2
3	7.560	11 42 53.28306	-49 20 07.0481	175.722013	-49.335291	0.062	0.058	16.200	0.400	15.198	0.300	15.409	0.400	14.580	0.500	1981.1800	1983.7500	-7.8	4.2	-1.2	3.8
4	15.510	11 42 54.18480	-49 20 04.6972	175.725770	-49.334638	0.115	0.115	18.110	0.400	17.100	0.400	17.312	0.400	16.478	0.500	1984.4100	1984.4100	-27.8	21.2	1.1	21.2
5	16.629	11 42 52.72081	-49 19 46.8547	175.719670	-49.329682	0.133	0.133	20.970	0.400	19.310	0.400	19.545	0.400	18.278	0.500	1984.1400	1984.1400	7.7	21.3	17.1	21.3
6	26.108	11 42 50.99567	-49 20 24.2949	175.712482	-49.340082	0.103	0.103	18.330	0.400	17.585	0.300	17.755	0.400	17.110	0.500	1987.3200	1987.3200	16.4	13.5	3.2	13.5
7	29.546	11 42 53.43407	-49 20 31.8519	175.722642	-49.342181	0.086	0.086	18.760	0.400	17.675	0.300	17.896	0.400	17.009	0.500	1990.9700	1990.9700	-22.5	10.2	10.3	10.2

%0a%0a