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	0.910	06 15 28.65744	-28 28 21.8820	0600-03137833	093.869406	-28.472745			18.2	18.1	1982.981
2	9.328	06 15 28.07136	-28 28 15.2112	0600-03137615	093.866964	-28.470892			20.6	18.0	1982.981
3	17.023	06 15 29.44944	-28 28 34.2408	0600-03138094	093.872706	-28.476178			18.8	17.8	1982.981
4	19.338	06 15 28.70472	-28 28 02.1828	0600-03137842	093.869603	-28.467273			18.6	18.0	1982.981
5	22.784	06 15 30.17400	-28 28 30.7524	0600-03138349	093.875725	-28.475209			19.8	18.0	1982.981
6	28.111	06 15 27.66288	-28 27 56.1924	0600-03137473	093.865262	-28.465609			16.6	16.0	1982.981

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

pix&%">\BegDIVclass='sort-down ' </A>dece

1 1.13606 15 28.67256-28 28 21.9900S10123026794093.869469-28.4727751980.040    18.71 0.423 2.56 0.12 217.04506 15 29.45328-28 28 34.2264S10123026734093.872722-28.4761741995.06318.09 0.4319.49 0.423 5.00 0.38 327.92806 15 27.67512-28 27 56.3184S10123026994093.865313-28.4656441995.06315.91 0.4316.83 0.410 3.98 0.11 %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	1.275	06 15 28.68552	-28 28 21.9504	0615-0071579	093.869523	-28.472764	25	78	1976.5	2	0	5	17.78	17.25	18.58	18.74	18.19
2	8.868	06 15 28.10544	-28 28 15.4020	0615-0071576	093.867106	-28.470945	145	80	1987.5	0	0	2			21.37	20.50
3	17.331	06 15 29.48352	-28 28 34.2516	0615-0071584	093.872848	-28.476181	298	409	1976.5	0	0	5	19.95	18.48	19.30	18.38	18.46
4	18.796	06 15 28.73544	-28 28 02.7624	0615-0071580	093.869731	-28.467434	101	225	1995.0	0	0	2				18.91	18.62
5	21.475	06 15 30.03600	-28 28 31.5012	0615-0071591	093.875150	-28.475417	999	999	1981.5	0	0	4		18.31	20.47	19.79	18.81
6	27.903	06 15 27.67608	-28 27 56.3400	0615-0071575	093.865317	-28.465650	63	72	1976.5	-6	-2	5	17.05	15.62	16.90	16.06	15.49

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

mas/yr&%">\BegDIVclass='sort-down ' </A>dece_
(...)pmDE
mas/yr

e_
(...)Bmag
magr_

Vmag
magr_

Rmag
magr_

Jmag
magHmag
magKmag
magR

1 1.27306 15 28.685328-28 28 21.950040615-0072273..093.8695222-28.4727639B 2.0 0.0 0.0 2.018.580B    18.740B         2 8.87006 15 28.105344-28 28 15.399840615-0072270..093.8671056-28.4709444B 0.0 0.0 0.0 0.021.370B    20.500B         317.32806 15 29.483328-28 28 34.250160615-0072278..093.8728472-28.4761806B 0.0 0.0 0.0 0.019.300B    18.380B         418.79806 15 28.735344-28 28 02.759880615-0072274..093.8697306-28.4674333B 0.0 0.0 0.0 0.0        18.910B         521.47506 15 30.036000-28 28 31.500120615-0072285..093.8751500-28.4754167B 0.0 0.0 0.0 0.020.470B    19.790B         627.90306 15 27.676008-28 27 56.340000615-0072269YM093.8653167-28.4656500B -6.0 2.0 -2.0 2.016.850Y16.140Y16.060B15.02514.61814.631   %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	1.039	06 15 28.66416	-28 28 21.9900	S3HU006794	093.869434	-28.472775	1995.063	18.51	18.71		17.96	3	3.29	0.26
2	9.084	06 15 28.07832	-28 28 15.4740	S3HU006827	093.866993	-28.470965	1995.063	20.12	22.07			3	2.59	0.27
3	17.040	06 15 29.45328	-28 28 34.2192	S3HU006734	093.872722	-28.476172	1995.063	18.09	19.49		18.51	3	5.00	0.38
4	18.564	06 15 28.71912	-28 28 02.9748	S3HU006918	093.869663	-28.467493	1995.063	19.02	20.58		18.56	3	2.89	0.08
5	22.598	06 15 30.15768	-28 28 30.7776	S3HU006733	093.875657	-28.475216	1995.063	19.50	20.78			3	2.40	0.12
6	27.929	06 15 27.67536	-28 27 56.3148	S3HU006994	093.865314	-28.465643	1995.063	15.91	16.83		15.59	0	3.98	0.11

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

%27%29%22%20onMouseOut=%22laz%28%29%22>b2mag

%20

%22>%5cFONT SIZE=-1magr1mag
mag

r2mag
mag

imag
mag

No

fl

1 1.27506 15 28.68216-28 28 22.0476093.869509-28.472791 2.2 -0.3    17.7818.5817.2518.7418.19 5 0 2 8.89206 15 28.09320-28 28 15.5424093.867055-28.470984 -4.6 -5.0      21.37  20.50   2 0 316.82606 15 29.47224-28 28 33.7008093.872801-28.476028 3.7 16.9    19.9519.3018.4818.3818.46 5 0 422.11206 15 30.12912-28 28 30.4284093.875538-28.475119 149.4 25.5      20.4718.3119.7918.81 4 1 527.90006 15 27.67824-28 27 56.3292093.865326-28.465647 -3.8 0.115.02514.63217.0516.9015.6216.0615.49 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	27.926	06 15 27.67776	-28 27 56.3038	XPM 123-0077172	093.865324	-28.465640	0.84	5.97	-0.69	5.30	15.906	16.829		15.588	15.025	0.040	14.619	0.060	14.632	0.086	224176615	16.6	16.0	425	16.059444	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

Full	_r arcsec	_RAJ2000 "h:m:s"	_DEJ2000 "d:m:s"	SPMID	RAJ2000 deg	[****ClosingBrace(s)Inserted****]
">

deg&%">\BegDIVclass='sort-down ' </A>dece_
masDEJ2000
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

127.83006 15 27.687720-28 27 56.346484730184492093.8653655 48.0-28.4656518 48.8 -1.72 2.19 2.82 2.321978.13 6 4 016.3116.3815.02514.61914.6322M0A %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"	UCAC4	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	27.578	06 15 27.688944	-28 27 56.61828	308-010285	093.8653706	-28.4657273	277	15.914	0	0	-0.5	-5.7	15.025	14.632	17.100	16.308	16.157	16.253	0	0	0	0	0	0	0	1	1

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

e_RAJ2000

%20

%22>%5cFONT SIZE=-1(...)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 1.27506 15 28.68216-28 28 22.0479093.869509-28.472791 0.103 0.10318.711 0.30018.514 0.30018.554 0.40018.320 0.5001976.52001976.5200 2.2 5.9 -0.3 5.9 2 8.89206 15 28.09319-28 28 15.5419093.867055-28.470984 0.163 0.16322.065 0.30020.119 0.30020.317 0.40018.881 0.5001987.55001987.5500 -4.6 21.6 -5.0 21.6 316.82706 15 29.47226-28 28 33.7011093.872801-28.476028 0.103 0.10319.486 0.30018.087 0.30018.329 0.40017.229 0.5001976.52001976.5200 3.7 5.9 16.9 5.9 418.48906 15 28.72478-28 28 03.0574093.869687-28.467516 0.400 0.40020.577 0.30019.023 0.30019.264 0.40018.063 0.5001995.06001995.0600 15.2 3.6 -15.9 23.8 522.11206 15 30.12915-28 28 30.4280093.875538-28.475119 0.133 0.11520.775 0.30019.500 0.30019.737 0.40018.720 0.5001981.60001981.6000 149.4 7.2 25.5 7.2 627.57906 15 27.68892-28 27 56.6180093.865371-28.465727 0.046 0.07916.829 0.30015.906 0.30016.106 0.40015.333 0.5001971.98001972.2800 -0.5 4.8 -5.7 8.1 %0a%0a%3cP%3e%0a%3cFONT%20SIZE=%27-1%27%3e%3cEM%3e%3cFONT%20COLOR=%27#0000FF%27>%3cB%3eNote:%20Zone%20-40/%2b50deg%3cP%3e%0a

Full	_r arcsec	_RAJ2000 "h:m:s"	_DEJ2000 "d:m:s"	CMC15	RA_ICRS deg	DE_ICRS deg	r'mag mag	pflag	Nt	Jmag mag	Hmag mag	Ksmag mag
1	27.780	06 15 27.67874	-28 27 56.4587	061527.6-282756	093.865328	-28.465683	15.853		1	15.025	14.619	14.632

%0a%0a