VizieR

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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.

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USNO-A2.0

RAJ2000
deg

DEJ2000
deg

ACTflag

Mflag

Bmag
mag

Rmag
mag

Epoch
yr

1 0.195 20 51 42.27888 -10 12 16.4304 0750-20455330 312.926162 -10.204564 17.0 16.8 1953.619

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Full

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GSC2.2

RA(ICRS)
deg

DE(ICRS)
deg

Epoch
yr

Rmag
mag

e_
mag

Bjmag
mag

e_
mag

Class

a
pix

e

1 0.461 20 51 42.25128 -10 12 16.5168 S331011116405 312.926047 -10.204588 1988.609 16.46 0.43 17.64 0.41 0 3.18 0.06

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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	0.195	20 51 42.27888	-10 12 16.4304	0750-20455330	312.926162	-10.204564			17.0	16.8	1953.619

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	0.461	20 51 42.25128	-10 12 16.5168	S331011116405	312.926047	-10.204588	1988.609	16.46	0.43	17.64	0.41	0	3.18	0.06

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%3cBR%3e%0a%3cEM%3e1&%3cFONT%20COLOR=%27#CD5B45%27>%200.280&%3cFONT%20COLOR=%27#CD5B45%27>20%2051%2042.26352&%3cFONT%20COLOR=%27#CD5B45%27>-10%2012%2016.5420&0797-0620867&312.926098&-10.204595&%2086&%2071&1973.2&%20%20%20%20%200&%20%20%20%20%200&5&17.66&16.47&18.05&16.74&16.11%3cBR%3e%0a %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	0.283	20 51 42.263328	-10 12 16.53984	0797-0687658	YM	312.9260972	-10.2045944	B	0.0	0.0	0.0	0.0	18.000	Y	17.530	Y	16.740	B	15.814	15.009	14.208

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Full	_r arcsec	_RAJ2000 "h:m:s"	_DEJ2000 "d:m:s"	GSC2.3	RAJ2000 deg	DEJ2000 deg	Epoch yr	Fmag mag	jmag mag	Vmag [**ClosingBrace(s)Inserted**]
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Vmag

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

Class

a
pix

1 0.46320 51 42.25128-10 12 16.5096SC2D016405312.926047-10.2045861988.60916.4617.64 16.460 3.18 0.06 %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	0.348	20 51 42.25824	-10 12 16.5960	312.926076	-10.204610	-1.3	-4.3	15.815	14.208	17.66	18.05	16.47		16.11	5	0

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

e_
mag

Kmag
mag

e_
mag

2Mkey

Bmag
mag

Rmag
mag

Fld

dT
yr

1 0.33920 51 42.25897-10 12 16.5779XPM 159-0937851312.926079-10.204605 -2.15 1.82 -2.56 1.7216.46017.635 16.45915.815 0.09515.010 0.09714.208 0.076 11527348217.016.8 75845.18635200M %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	0.347	20 51 42.25828	-10 12 16.5960	312.926076	-10.204610	0.068	0.068	18.050	0.400	16.470	0.400	16.709	0.400	15.493	0.500	1988.5200	1988.5200	-1.3	4.0	-4.3	4.0
2	0.583	20 51 42.24237	-10 12 16.5775	312.926010	-10.204605	0.400	0.400	17.635	0.300	16.460	0.300	16.690	0.400	15.741	0.500	1988.6100	1988.6100	-11.4	1.5	-5.5	2.7

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Full	_r arcsec	_RAJ2000 "h:m:s"	_DEJ2000 "d:m:s"	RAICRS deg	e_ mas	DEICRS deg	e_ mas	ID	Type	pmRA [**ClosingBrace(s)Inserted**]
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pmRA

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%22>%5cFONT SIZE=-1mas/yr e_
(...)

pmDE
mas/yr

e_
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Nobs

Dt
yr

Rmag
mag

Bmag
mag

Nmag
mag

Vmag
mag

Jmag
mag

Hmag
mag

Kmag
mag

1 0.46120 51 42.250614-10 12 16.58309312.9260442 31.00-10.2046064 38.0048405+00164050 -4.7 1.2 3.9 1.5 835.783 16.460 17.635 16.459 15.815 15.010 14.208 %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	0.237	20 51 42.266625556	-10 12 16.54090839	312.9261109398	15.460	-10.2045946968	25.933	6902423146626803584				0.981	1	2.1920e+03	1.8269e+01	17.173	NOT_AVAILABLE

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Target Name (resolved by Sesame) or Position:	Target dimension:
NB: The epoch used for the query is the original epoch of the table(s)	Radius Box size