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.

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 3.141 03 31 26.90400 -17 22 48.2808 0675-01210652 052.862100 -17.380078 18.0 17.6 1983.830

%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

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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 3.520 03 31 26.90256 -17 22 48.7128 S031211111726 052.862094 -17.380198 1996.784 17.92 0.42 19.33 0.38 3 4.41 0.31

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Full

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_RAJ2000

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%22> _RAJ2000

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	3.141	03 31 26.90400	-17 22 48.2808	0675-01210652	052.862100	-17.380078			18.0	17.6	1983.830

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	3.520	03 31 26.90256	-17 22 48.7128	S031211111726	052.862094	-17.380198	1996.784	17.92	0.42	19.33	0.38	3	4.41	0.31

Full	_r arcsec	_RAJ2000 [**ClosingBrace(s)Inserted**]
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%3cBR%3e%0a%3cEM%3e1&%3cFONT%20COLOR=%27#CD5B45%27>%203.417&%3cFONT%20COLOR=%27#CD5B45%27>03%2031%2026.90952&%3cFONT%20COLOR=%27#CD5B45%27>-17%2022%2048.5508&0726-0052072&052.862123&-17.380153&100&168&1974.8&%20%20%20%20%200&%20%20%20%20%200&5&20.10&17.65&20.32&18.59&18.49%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	3.415	03 31 26.909328	-17 22 48.55008	0726-0052030	Y.	052.8621222	-17.3801528	B	0.0	0.0	0.0	0.0	18.070	Y	17.860	Y	18.590	B

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

%20

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

Class

a
pix

1 3.51603 31 26.90256-17 22 48.7092S2OL011726052.862094-17.3801971996.78417.9218.66 17.953 4.41 0.31 %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	3.719	03 31 26.92392	-17 22 48.7848	052.862183	-17.380218	14.0	-23.0			20.10	20.32	17.65		18.49	4	0

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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	e_ mag	magGrvs mag	e_ [**ClosingBrace(s)Inserted**]
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%20

%22>%5cFONT SIZE=-1mag alphaEpoch
yr

deltaEpoch
yr

pmRA
mas/yr

e_
(...)

pmDE
mas/yr

e_
(...)

1 3.72003 31 26.92394-17 22 48.7853052.862183-17.380218 0.115 0.11518.660 0.30017.921 0.30018.090 0.40017.449 0.5001969.14001969.1400 14.0 7.6 -23.0 7.6 %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	3.957	03 31 26.918678	-17 22 49.08789	052.8621612	37.00	-17.3803022	64.00	36245+0011726	4	8.0	1.3	-16.0	2.4	13	43.646	17.921	18.660	17.948

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

Dup

<FG>
e-/s

e_
e-/s

<Gmag>
mag

Var

1 4.28003 31 26.933226569-17 22 49.34690293052.8622217774 0.420-17.3803741397 0.3425105543760670920320 -0.6700 7.1074e+02 2.8580e+0018.395NOT_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	Jmag mag	Hmag mag	Kmag mag	B1mag mag	B2mag mag	R1mag mag	R2mag mag	Imag mag	GaiaId	Gmag mag	Clone	Nosc
1	3.831	03 31 26.920132824	-17 22 48.93779496	052.8621672201	-17.3802604986	2458816618154516150		12.496	-27.274				20.10	20.32	17.65		18.49	5105543760670920320	18.395

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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