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	6.849	18 10 39.17688	-47 18 52.9416	0375-34532890	272.663237	-47.314706			18.2	17.3	1980.071
2	9.841	18 10 39.65736	-47 18 39.0708	0375-34533304	272.665239	-47.310853			13.0	12.0	1980.071

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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	3.755	18 10 39.60264	-47 18 45.3312	S31200021884	272.665011	-47.312592	1998.537	16.70	0.44			3	2.05	0.03
2	4.850	18 10 40.00368	-47 18 44.9928	S31200021883	272.666682	-47.312498	1996.645	14.76	0.38			3	4.22	0.19
3	6.919	18 10 39.14832	-47 18 52.6428	S31200021802	272.663118	-47.314623	1996.645	17.31	0.42			3	1.93	0.04

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">Note: The USNO-B Catalog presents positions, proper motions, magnitudes un blue, red and infrared, as well as star/galaxy estimators for 1,045,175,762 objects derived from 3,648,832,040 separate observations. The data were taken from scans of 7,435 Schmidt plates taken from various sky surveys during the last 50 years.
USNO-B1.0 catalog was created by Dave Monet and collaborators at http://www.nofs.navy.mil/data/fchpix/
Note that the star/galaxy estimators may be mixed up in dense regions.

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	4.807	18 10 39.85080	-47 18 44.2728	0426-0858270	272.666045	-47.312298	945	165	1983.4	0	0	2		14.15			14.85
2	5.454	18 10 39.90216	-47 18 43.7616	0426-0858274	272.666259	-47.312156	13	75	1983.4	0	0	2		14.11			13.34
3	6.218	18 10 39.20544	-47 18 52.2504	0426-0858257	272.663356	-47.314514	190	61	1983.5	10	24	4		17.05	18.36	17.10	16.75
4	6.620	18 10 39.86616	-47 18 42.4404	0426-0858272	272.666109	-47.311789	169	64	1986.5	0	0	2		13.26			12.88
5	9.978	18 10 39.67752	-47 18 38.9232	0426-0858267	272.665323	-47.310812	80	351	1983.5	0	0	4		12.65	13.65	12.68	11.41

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Full	_r arcsec	_RAJ2000 "h:m:s"	_DEJ2000 "d:m:s"	NOMAD1	YM	RAJ2000 deg	DEJ2000 deg	r	pmRA mas/yr	e_ (...)	pmDE [****ClosingBrace(s)Inserted****]
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pmDE

%22>%5cFONT SIZE=-1mas/yre_
(...)Bmag
magr_

Vmag
magr_

Rmag
magr_

Jmag
magHmag
magKmag
magR

1 3.46618 10 39.589344-47 18 45.690120426-0934866YM272.6649556-47.3126917Y -32.4 9.0 4.5 9.016.070Y14.140Y    15.58315.45115.259   2 4.80918 10 39.850656-47 18 44.269920426-0934873..272.6660444-47.3122972B 0.0 0.0 0.0 0.0        14.150e      * 3 5.42618 10 40.107336-47 18 45.159840426-0934880YM272.6671139-47.3125444Y 87.0 9.0 -55.5 9.014.080Y13.110Y    14.10213.77813.740   4 5.45518 10 39.901992-47 18 43.760160426-0934877..272.6662583-47.3121556B 0.0 0.0 0.0 0.0        14.110e      * 5 6.21918 10 39.205344-47 18 52.250040426-0934859YM272.6633556-47.3145139B 10.0 10.0 24.0 3.016.790Y17.300Y17.100B15.87115.37715.800   6 6.62018 10 39.865992-47 18 42.440040426-0934875..272.6661083-47.3117889B 0.0 0.0 0.0 0.0        13.260e      * 7 9.98118 10 39.677328-47 18 38.919960426-0934870YM272.6653222-47.3108111B 0.0 0.0 0.0 0.013.490Y13.040Y12.680B11.88411.35211.221   %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	3.761	18 10 39.60288	-47 18 45.3240	SAO2001884	272.665012	-47.312590	1998.537	16.70		16.80		3	2.05	0.03
2	4.346	18 10 39.92832	-47 18 45.0972	SAO2001883	272.666368	-47.312527	1992.555	14.55	15.34	14.95	14.16	3	6.82	0.40
3	7.166	18 10 39.13488	-47 18 52.8840	SAO2001802	272.663062	-47.314690	1992.555	17.09	18.86	17.32	16.76	0	2.69	0.08

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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	[****ClosingBrace(s)Inserted****]
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mag&%">\BegDIVclass='sort-down ' </A>decNo

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1 6.71118 10 39.18336-47 18 52.7976272.663264-47.314666 2.0 3.215.87215.800  18.3617.0517.1016.75 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	6.867	18 10 39.17210	-47 18 52.9054	XPM 085-1306589	272.663217	-47.314696	-3.41	-6.83	-3.83	-7.57	17.090	18.856	17.315	16.758	15.872	0.081	15.377	0.093	15.800		429082153	18.2	17.3	280	19.304726	0	0	M

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Full	_r arcsec	_RAJ2000 "h:m:s"	_DEJ2000 "d:m:s"	SPMID	RAJ2000 deg	[****ClosingBrace(s)Inserted****]
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deg&%">\BegDIVclass='sort-down ' </A>dece_
masDEJ2000
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pmDE
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Epoch
yr

N1

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Bmag
mag

Vmag
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1 3.58918 10 39.596256-47 18 45.530642481197608272.6649844 71.4-47.3126474 74.2 -38.46 2.41 -14.46 2.571981.54 7 0 016.9716.5215.58315.45215.2592M0A 2 5.24418 10 40.055424-47 18 44.909282481197613272.6668976 9.7-47.3124748 9.7 39.34 2.88 -20.72 2.932006.75 3 0 316.1315.3414.10213.77913.7402M0A 3 6.90018 10 39.161640-47 18 52.811642481197604272.6631735 60.2-47.3146699 61.9 -3.03 2.67 -16.35 2.901991.55 5 0 218.1217.7815.87215.37715.8002M0A %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	5.441	18 10 40.100616	-47 18 45.06732	214-167894	272.6670859	-47.3125187	53	15.320	0	0	53.5	-26.6	14.102	13.740	14.663	13.703			0	0	0	0	0	0	0	0	3

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