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	9.934	18 41 30.71352	+77 43 48.3024	1650-02063582	280.377973	+77.730084			15.1	12.9	1953.608

%0a%0a%3cP%3e%0a%3cFONT%20SIZE=%27-1%27%3e%3cEM%3e%3cFONT%20COLOR=%27#0000FF%27>%3cB%3eNote:%20%3cB%3e%3cFONT%20COLOR=%27#CD5B45%27>%20The%20current%20version%20includes%20only%20the%20North%20%28POSS-I%20plates%29%3cP%3e%0a

Full	_r arcsec	_RAJ2000 "h:m:s"	_DEJ2000 "d:m:s"	APM-ID	RAJ2000 deg	DEJ2000 deg	rmag mag	l_	rClass	rStel	rDiam arcsec	rEll	bmag mag	l_	bClass	bStel	bDiam arcsec	b-r mag	Mflag
1	9.410	18 41 32.21088	+77 44 02.1804	EO0776-0187691	280.384212	+77.733939	19.28		2	6.83	4.8	0.11	21.34	L	0			2.06
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%3cEM%3e1&%3cFONT%20COLOR=%27#CD5B45%27>%209.410&%3cFONT%20COLOR=%27#CD5B45%27>18%2041%2032.21088&%3cFONT%20COLOR=%27#CD5B45%27>%2b77%2044%2002.1804&EO0776-0187691&280.384212&%2b77.733939&19.28&%20&%202&%20%20%206.83&%20%20%204.8&%200.11&21.34&L&%200&%20&%20&%20%202.06&%20%3cBR%3e">\Ahref='VizieR-5?-ref=VIZ66407af31cf45a&-out.add=.&-source=I/267/out&APM-ID===EO0776-0187967&-out.orig=o' class='full'2 9.49418 41 30.52536+77 43 48.5616EO0776-0187967280.377189+77.730156 9.68   1 36.28 30.0 0.1313.12   2 13.41 27.5 3.44   %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	1.426	18 41 29.51016	+77 43 56.2404	1677-0107071	280.372959	+77.732289	999	999	1993.9	0	0	3			19.40	16.96	18.23
2	1.989	18 41 30.25080	+77 43 57.4500	1677-0107075	280.376045	+77.732625	29	59	1993.4	0	0	2			19.67	17.91
3	2.006	18 41 29.64552	+77 43 59.6208	1677-0107072	280.373523	+77.733228	828	363	1983.5	12	74	4	19.84		20.04	18.62	18.12
4	4.499	18 41 28.56480	+77 43 54.6600	1677-0107067	280.369020	+77.731850	349	430	1993.5	0	0	2			20.00	17.36
5	5.595	18 41 31.37088	+77 43 58.3104	1677-0107082	280.380712	+77.732864	999	999	1981.2	-86	204	3		17.96	19.84		18.06
6	7.624	18 41 27.80016	+77 43 52.7016	1677-0107066	280.365834	+77.731306	608	999	1993.9	0	0	3			19.80	18.74	17.78
7	9.770	18 41 30.81888	+77 43 48.6120	1677-0107078	280.378412	+77.730170	23	188	1977.7	10	4	5	14.55	11.36	12.40	11.11	11.05

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Full	_r arcsec	_RAJ2000 "h:m:s"	_DEJ2000 "d:m:s"	NOMAD1	YM	RAJ2000 deg	DEJ2000 deg	[****ClosingBrace(s)Inserted****]
">

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

pmRA
mas/yr

e_
(...)pmDE
mas/yre_
(...)Bmag
magr_

Vmag
magr_

Rmag
magr_

Jmag
magHmag
magKmag
magR

1 1.42718 41 29.509992+77 43 56.240041677-0107683..280.3729583+77.7322889B 0.0 0.0 0.0 0.019.400B    16.960B         2 1.98918 41 30.250656+77 43 57.450001677-0107687..280.3760444+77.7326250B 0.0 0.0 0.0 0.019.670B    17.910B         3 2.00518 41 29.645328+77 43 59.620081677-0107684..280.3735222+77.7332278B 12.0 34.0 74.0 15.020.040B    18.620B         4 4.49918 41 28.564656+77 43 54.660001677-0107679..280.3690194+77.7318500B 0.0 0.0 0.0 0.020.000B    17.360B         5 5.59418 41 31.370664+77 43 58.310041677-0107694..280.3807111+77.7328639B -86.0102.0 204.0 67.119.840B    17.960e         6 7.62518 41 27.799992+77 43 52.700161677-0107678..280.3658333+77.7313056B 0.0 0.0 0.0 0.019.800B    18.740B         7 9.77218 41 30.818664+77 43 48.609841677-0107690..280.3784111+77.7301694B 10.0 0.0 4.0 6.012.400B    11.110B         %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	1.987	18 41 29.53704	+77 43 59.5812	280.373071	+77.733217	1.7	77.6			19.84	20.04		18.62	18.12	4	0
2	4.435	18 41 30.94896	+77 43 59.0196	280.378954	+77.733061	-115.3	222.1				19.84	17.96		18.06	3	1

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

mag&%">\BegDIVclass='sort-down ' </A>dece_
magmagGrvs
mage_
magalphaEpoch
yrdeltaEpoch
yrpmRA
mas/yre_
(...)pmDE
mas/yre_
(...) 1 1.98718 41 29.53709+77 43 59.5808280.373071+77.733217 0.115 0.11520.040 0.40018.620 0.40018.862 0.40017.749 0.5001983.54001983.5400 1.7 6.6 77.6 6.6 2 4.43518 41 30.94894+77 43 59.0199280.378954+77.733061 0.163 0.16319.840 0.40017.960 0.40018.170 0.40016.771 0.5001981.24001981.2400 -115.3 7.3 222.1 7.3 %0a%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"	RAICRS deg	e_ mas	DEICRS deg	e_ mas	ID	Type	pmRA mas/yr	e_ (...)	pmDE mas/yr	e_ (...)	Nobs	Dt yr	Rmag mag	Bmag mag	Nmag mag	Vmag mag	Jmag mag	Hmag mag	Kmag mag
1	9.924	18 41 30.678005	+77 43 48.27215	280.3778250	55.00	+77.7300756	25.00	50285+0006380	0	-3.1	2.7	0.6	1.2	11	43.026	11.109	14.319	11.999	14.154	13.974	13.196	12.914

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Full	_r arcsec	_RAJ2000 "h:m:s"	_DEJ2000 "d:m:s"	GSC2	RA_ICRS deg	DE_ICRS deg	objID	Epoch yr	Class	Gmag [****ClosingBrace(s)Inserted****]
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Gmag

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

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umag
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gmag
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imag
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a
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pix

1 2.79818 41 29.4410208000+77 43 54.882696000N0VH040881280.37267092000+77.73191186000 10101231408812014.9323                        20.334                                 2 4.07318 41 30.8963927711+77 43 58.136971128N0VH050114280.37873496988+77.73281582531 10101231501142006.0004                                                  21.701       3 9.79518 41 30.6446400000+77 43 48.370800000N0VH020558280.37768600000+77.73010300000 10101231205581999.3830                               12.796 12.386 11.951                       %0a%0a%0a

Full	_r arcsec	_RAJ2000 "h:m:s"	_DEJ2000 "d:m:s"	RAJ2000 deg	e_ 10-5deg	DEJ2000 deg	e_ 10-5deg	mag mag	e_ mag	emag mag	Nobs	N1	Ndet	flag
1	9.88	18 41 30.6816	+77 43 48.324	280.37784	63	+77.73009	84	14.990	0.165	0.184	127	184	214	0
2	9.99	18 41 30.5184	+77 43 48.036	280.37716	73	+77.73001	78	14.958	0.137	0.169	161	197	353	0

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Full	_r arcsec	_RAJ2000 "h:m:s"	_DEJ2000 "d:m:s"	RAJ2000 deg	DEJ2000 deg	FUV mag	e_ mag	NUV mag	e_ mag	r.fov deg	b	Fafl	Nafl	Fexf	Nexf	Fr [****ClosingBrace(s)Inserted****]
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%28fuv_fwhm_world%29%7d%27%29%22%20onMouseOut=%22laz%28%29%22>Fr

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arcsec

1 3.78318 41 30.81579+77 43 57.6603280.378399+77.732683    21.410 0.496 0.2226071 0 0 0 0   8.30 %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	Name	r.fov deg	b	FUVmag mag	e_ mag	NUVmag mag	e_ mag	Fafl	Nafl	Fexf	Nexf	Fr deg	Nr deg
1	4.073	18 41 30.89639	+77 43 58.1370	280.378735	+77.732816	GALEX J184130.8+774358	0.222696	1			21.7010	0.3982	0	0	0	0		0.003454

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