VizieR

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The 5 columns in color are computed by VizieR, and are not part of the original data.

Full	_r arcsec	_RAJ2000 "h:m:s"	_DEJ2000 "d:m:s"	Name	RAB1950 "h:m:s"	DEB1950 "d:m:s"	bmag mag	Nfields	Flag1	Flag2	Flag3	_RA.icrs "h:m:s"	_DE.icrs "d:m:s"
1	4.832	10 20 28.94556	+50 28 00.4562	+50.0172	10 17 20.489	+50 43 06.56	16.55	2	0	0	0	10 20 28.946	+50 28 00.46

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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 3.440 10 20 28.33152 +50 28 05.7612 1350-07754357 155.118048 +50.468267 17.2 17.4 1955.210

2 4.569 10 20 28.94808 +50 28 00.7932 1350-07754386 155.120617 +50.466887 14.4 14.3 1955.210

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%22>
> \BegDIVclass='sort-down ' </A>
dec 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 4.210 10 20 28.89936 +50 28 00.9120 EO1331-0347010 155.120414 +50.466920 12.39 1 32.16 28.6 0.64 13.50 1 27.39 29.8 1.11

Note: The construction of the GSC-II is still in progress: this version has no proper motions, and the magnitude limits are 18.5 in F (red) and 19.5 in J (blue). The data are copyrighted, check the data use Policy.

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 4.845 10 20 28.94496 +50 28 00.4368 N23212316470 155.120604 +50.466788 1998.225 13.15 0.42 14.01 0.41 3 11.60 0.70

%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 1.719 10 20 28.48608 +50 28 04.4400 1404-0218444 155.118692 +50.467900 999 999 1973.7 0 0 2 17.40 16.78

2 3.383 10 20 28.33272 +50 28 05.6316 1404-0218443 155.118053 +50.468231 999 335 1973.7 0 0 2 18.33 16.52

[****ClosingBrace(s)Inserted****]
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3.443

10 20 28.86000

+50 28 01.5816

1404-0218447

155.120250

+50.467106

194

733

1984.1

-40

13.95

12.98

14.65

4.517

10 20 28.94136

+50 28 00.8112

1404-0218449

155.120589

+50.466892

137

183

1977.9

14.86

14.20

13.83

13.88

14.65

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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 mas/yr	e_ (...)	Bmag mag	r_	Vmag mag	r_	Rmag mag	r_	Jmag mag	Hmag mag	Kmag mag	R
1	1.720	10 20 28.486008	+50 28 04.44000	1404-0222348	..	155.1186917	+50.4679000	B	0.0	0.0	0.0	0.0					17.400	e
2	3.383	10 20 28.332672	+50 28 05.63016	1404-0222347	..	155.1180528	+50.4682306	B	0.0	0.0	0.0	0.0					18.330	e
3	3.444	10 20 28.860000	+50 28 01.58016	1404-0222351	YM	155.1202500	+50.4671056	B	-40.0	7.0	28.0	28.0	17.070	Y	16.740	Y	12.980	B	14.961	14.305	14.516
4	4.517	10 20 28.941336	+50 28 00.81012	1404-0222353	.M	155.1205889	+50.4668917	B	0.0	0.0	0.0	0.0	13.830	B			13.880	B	15.339	14.644	13.842
5	7.791	10 20 29.119992	+50 27 58.01004	1404-0222354	YM	155.1213333	+50.4661139	Y	-67.9	9.0	17.7	9.0	16.470	Y	17.280	Y			15.074	14.342	14.772

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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