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	4.459	15 47 31.30800	-66 11 16.5804	0225-23790749	236.880450	-66.187939			19.6	17.8	1981.855
2	7.787	15 47 32.04072	-66 11 11.6628	0225-23791297	236.883503	-66.186573			18.1	17.5	1981.855

%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	7.829	15 47 31.97280	-66 11 11.5800	S213312156506	236.883220	-66.186550	1993.318	18.29	0.47	18.76	0.18	3	1.90	0.13

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

">

%22> Full

">  _r
arcsec _RAJ2000
"h:m:s" _DEJ2000
"d:m:s"USNO-B1.0

RAJ2000
degDEJ2000
dege_RAJ2000
mase_DEJ2000
masEpoch
yrpmRA
mas/yrpmDE
mas/yrNdet

B1mag
magR1mag
magB2mag
magR2mag
magImag
mag 1 4.62315 47 31.32072-66 11 16.24200238-0612457236.880503-66.187845 18 381984.6 -4 83  17.7419.2318.90   2 7.91615 47 32.06400-66 11 11.55120238-0612477236.883600-66.186542 621161984.3 0 04  17.0717.8417.2617.08 3 8.78015 47 30.95208-66 11 12.64200238-0612444236.878967-66.1868459999991986.3 0 02    19.0017.64   4 8.81815 47 32.13000-66 11 10.70160238-0612479236.883875-66.1863065379301987.0 0 02      16.3017.40 %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	4.624	15 47 31.320672	-66 11 16.23984	0238-0637904	..	236.8805028	-66.1878444	B	-4.0	1.0	8.0	2.0	19.230	B			18.900	B
2	7.917	15 47 32.064000	-66 11 11.55012	0238-0637925	..	236.8836000	-66.1865417	B	0.0	0.0	0.0	0.0	17.840	B			17.260	B
3	8.782	15 47 30.952008	-66 11 12.63984	0238-0637891	..	236.8789667	-66.1868444	B	0.0	0.0	0.0	0.0	19.000	B			17.640	B
4	8.819	15 47 32.130000	-66 11 10.70016	0238-0637927	..	236.8838750	-66.1863056	B	0.0	0.0	0.0	0.0					16.300	B

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Full	_r arcsec	_RAJ2000 "h:m:s"	[****ClosingBrace(s)Inserted****]
">

%22h:m:s%22&%">\BegDIVclass='sort-down ' </A>string _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 4.75515 47 31.25520-66 11 16.5084S7VD055957236.880230-66.1879191993.31819.0620.30    3 1.80 0.20 2 4.97015 47 31.25712-66 11 16.1520S7VD086422236.880238-66.1878201993.53419.0320.19    3 1.98 0.35 3 7.83615 47 31.97304-66 11 11.5728S7VD056506236.883221-66.1865481993.31818.2918.76  18.693 1.90 0.13 4 8.69215 47 33.07776-66 11 24.1764S7VD055669236.887824-66.1900491993.31820.4221.58    3 1.21 0.02 %0a%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 mag	r2mag mag	imag mag	No	fl
1	4.654	15 47 31.29936	-66 11 16.3392	236.880414	-66.187872	-11.1	4.2				19.23	17.74	18.90		3	0
2	6.555	15 47 31.13424	-66 11 14.6364	236.879726	-66.187399	170.0	-290.5				19.00		17.64		2	0
3	7.720	15 47 32.03712	-66 11 11.7276	236.883488	-66.186591	-7.0	-14.7				17.84	17.07	17.26	17.08	4	0

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

e_

%20

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

e_
mag

magGrvs
mag

e_
mag

alphaEpoch
yr

deltaEpoch
yr

pmRA
mas/yr

e_
(...)

pmDE
mas/yr

e_
(...)

1 4.65415 47 31.29936-66 11 16.3390236.880414-66.187872 0.133 0.13320.299 0.30019.063 0.30019.298 0.40018.307 0.5001984.68001984.6800 -11.1 18.8 4.2 18.8 2 6.55615 47 31.13428-66 11 14.6361236.879726-66.187399 0.163 0.16319.000 0.40017.640 0.40017.881 0.40016.807 0.5001986.38001986.3800 170.0 23.5 -290.5 23.5 3 7.71915 47 32.03716-66 11 11.7281236.883488-66.186591 0.115 0.11518.761 0.30018.286 0.30018.397 0.40017.953 0.5001984.38001984.3800 -7.0 21.1 -14.7 21.1 4 8.16115 47 32.99904-66 11 23.9354236.887496-66.189982 0.400 0.40021.579 0.30020.419 0.30020.647 0.40019.709 0.5001993.32001993.3200 -71.2 30.6 36.8 30.6 %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	4.643	15 47 31.263787970	-66 11 16.62537624	236.8802657832	0.170	-66.1879514934	0.355	5822413865834118784				0.204	0	5.0180e+02	1.6986e+00	18.773	NOT_AVAILABLE
2	7.485	15 47 32.003080823	-66 11 11.94048769	236.8833461701	0.104	-66.1866501355	0.240	5822413865834147584				0.194	0	1.0377e+03	3.1464e+00	17.985	NOT_AVAILABLE
3	9.388	15 47 33.161363933	-66 11 24.67143092	236.8881723497	0.306	-66.1901865086	0.768	5822413870139190912				0.034	0	2.7471e+02	2.0970e+00	19.428	NOT_AVAILABLE

%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	ipix	comp	pmRA mas/yr	pmDE mas/yr	[****ClosingBrace(s)Inserted****]
">

mas/yr&%">\BegDIVclass='sort-down ' </A>decJmag
magHmag
mag

Kmag
mag

B1mag
mag

B2mag
mag

R1mag
mag

R2mag
mag

Imag
mag

GaiaId

Gmag
mag

Clone

Nosc

1 4.55615 47 31.295001456-66 11 16.52390700236.8803958394-66.18792330756021353179955696355   -12.602 -6.765        19.2317.7418.90  582241386583411878418.773     2 7.71815 47 32.028399648-66 11 11.72316012236.8834516652-66.18658976676021353134415293786   -10.223 -14.489        17.8417.0717.2617.08582241386583414758417.985     %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	e_ mas	pmRA mas/yr	e_ (...)	pmDE mas/yr	e_ (...)	Dup	FG e-/s	e_ e-/s	Gmag mag	e_ mag	FBP e-/s	e_ e-/s	BPmag mag	e_ mag	FRP e-/s	e_ e-/s	RPmag mag	e_ mag	BP-RP mag	RV km/s	e_ km/s	Teff K	AG mag	E(BP-RP) mag	Rad solRad	[****ClosingBrace(s)Inserted****]
solRad
">
	\BegDIVclass='sort-down '
</A>
decLum solLum
1	4.645	15 47 31.2858789949	-66 11 16.568707531	236.88026288591	0.1074	-66.18795206148	0.1470	5822413865834118784	0.2821	0.2202	-8.903	0.209	-3.788	0.314	0	5.2008e+02	7.7782e-01	18.8982	0.0016	2.2516e+02	5.3545e+00	19.4702	0.0258	4.0505e+02	5.5670e+00	18.2432	0.0149	1.2270
2	7.483	15 47 32.0159487941	-66 11 11.879727020	236.88334448797	0.0628	-66.18665062572	0.0889	5822413865834147584	-0.1045	0.1365	-5.186	0.119	-4.034	0.196	0	1.1158e+03	1.1180e+00	18.0694	0.0011	5.9433e+02	5.6158e+00	18.4163	0.0103	7.4503e+02	6.0695e+00	17.5815	0.0088	0.8348
3	9.386	15 47 33.1813458578	-66 11 24.583489036	236.88816977658	0.1788	-66.19018713217	0.2359	5822413870139190912	-0.3432	0.3543	-8.048	0.353	-5.818	0.606	0	2.7100e+02	7.0429e-01	19.6060	0.0028	9.0191e+01	6.0981e+00	20.4635	0.0734	2.5876e+02	6.1170e+00	18.7297	0.0257	1.7338

%0a%0a