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 0.952 08 34 39.90288 +38 21 45.8604 1275-07310548 128.666262 +38.362739 11.8 11.4 1953.025

2 9.212 08 34 39.17880 +38 21 40.6800 1275-07310490 128.663245 +38.361300 18.7 19.3 1953.025

%0a%0a%3cP%3e%0a%3cFONT%20SIZE=%27-1%27%3e%3cEM%3e%3cFONT%20COLOR=%27#0000FF%27>%3cB%3eNote:%20The%20%3cB%3eGuide%20Star%20Catalog%20has%20been%20constructed%20to%20support%20the%20%0aoperational%20need%20of%20the%20Hubble%20Space%20Telescope.%0aIt%20contains%20over%2025%20million%20positions%20for%20about%2019%20million%0aobjects,%20of%20which%20more%20than%2015%20million%20are%20classified%20as%20stars.%0aThe%20version%20%3cB%3e1.2%20is%20a%20new%20astrometric%20reduction%20which%20results%20in%0aabsolute%20position%20errors%20about%200.3-0.4%20arcsec.%0a%28see%20GSC%20pages%20at%20URL%20http://www-gsss.stsci.edu/gsc/gsc.html%29%0a%3cP%3e%0a
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GSC

RAJ2000
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DEJ2000
deg

PosErr
arcsec

Pmag
mag

e_
mag

n_

Class

Plate

Epoch
yr

1 1.10 08 34 39.8712 +38 21 45.000 0297500416 128.66613 +38.36250 0.3 14.38 0.40 1 3 00XV 1983.023

2 1.18 08 34 39.9168 +38 21 45.540 0297500416 128.66632 +38.36265 0.3 13.93 0.40 1 3 02D5 1983.130

%0a%0a%3cP%3e%0a%3cFONT%20SIZE=%27-1%27%3e%3cEM%3e%3cFONT%20COLOR=%27#0000FF%27>%3cB%3eNote:%20The%20%3cB%3eGSC-ACT%20%3cEM%3e%28or%20%3cB%3eGSC1.3%29%0ais%20a%20recalibration%20of%20the%20%3cB%3e<%25E%20I/220%7cGSC1.1>,%20the%20catalogue%20constructed%20%0ato%20support%20the%20operational%20need%20of%20the%20Hubble%20Space%20Telescope,%0awith%20the%20%3cB%3e<%25E%20I/246%7cACT>,%20the%20combination%20of%20the%20Astrographic%20Catalogue%0aand%20the%20%3cB%3e%3cEM%3eTycho%20catalogue%20derived%20from%20the%20%3cEM%3e<%25E%20I/239%7cHipparcos>%0amission;%20see%20http://www.projectpluto.com/gsc_act.htm%20for%20more%20details%0aabout%20this%20recalibration.%0a%3cP%3e%0a
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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	0.952	08 34 39.90288	+38 21 45.8604	1275-07310548	128.666262	+38.362739			11.8	11.4	1953.025
2	9.212	08 34 39.17880	+38 21 40.6800	1275-07310490	128.663245	+38.361300			18.7	19.3	1953.025

Full	_r arcsec	_RAJ2000 "h:m:s"	_DEJ2000 "d:m:s"	GSC	RAJ2000 deg	DEJ2000 deg	PosErr arcsec	Pmag mag	e_ mag	n_	Class	Plate	Epoch yr
1	1.10	08 34 39.8712	+38 21 45.000	0297500416	128.66613	+38.36250	0.3	14.38	0.40	1	3	00XV	1983.023
2	1.18	08 34 39.9168	+38 21 45.540	0297500416	128.66632	+38.36265	0.3	13.93	0.40	1	3	02D5	1983.130

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%3cBR%3e%0a%3cEM%3e1&%3cFONT%20COLOR=%27#CD5B45%27>%200.88&%3cFONT%20COLOR=%27#CD5B45%27>08%2034%2039.8856&%3cFONT%20COLOR=%27#CD5B45%27>%2b38%2021%2045.468&0297500416&128.66619&%2b38.36263&%200.3&14.39&%200.40&%201&3&1983.023%3cBR%3e%0a%3cEM%3e2&%3cFONT%20COLOR=%27#CD5B45%27>%201.44&%3cFONT%20COLOR=%27#CD5B45%27>08%2034%2039.9384&%3cFONT%20COLOR=%27#CD5B45%27>%2b38%2021%2045.468&0297500416&128.66641&%2b38.36263&%200.3&13.95&%200.40&%201&3&1983.130%3cBR%3e%0a %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	1.011	08 34 39.90480	+38 21 46.2132	EO0648-0020997	128.666270	+38.362837	10.41		1	12.73	27.1	0.23	21.60	L	0			11.19
2	1.239	08 34 39.89208	+38 21 46.8612	EO0707-0311656	128.666217	+38.363017	12.28		-1	2.29	29.8	0.25	21.75	L	0			9.47	*
3	6.933	08 34 40.34400	+38 21 42.7104	EO0648-0021071	128.668100	+38.361864	20.00	L	0				10.04		1	5.67	54.5	-9.96

%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	_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 [**ClosingBrace(s)Inserted**]
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Bjmag

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

Class

a
pix

1 0.75708 34 39.88656+38 21 45.9216N2333031499128.666194+38.3627561989.18411.42 0.4211.89 0.410 10.16 0.19 %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	1.095	08 34 39.90552	+38 21 46.4220	1283-0190371	128.666273	+38.362895	75	314	1976.0	0	0	5	12.06	11.42	11.29	10.86	10.72
2	8.307	08 34 39.11688	+38 21 46.3824	1283-0190367	128.662987	+38.362884	372	999	1971.1	0	0	2		19.37		18.78
3	8.502	08 34 39.30216	+38 21 51.8400	1283-0190368	128.663759	+38.364400	650	999	1953.0	0	0	2	18.24	19.02

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

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

Rmag
mag

Jmag
mag

Hmag
mag

Kmag
mag

1 1.09208 34 39.905328+38 21 46.419841283-0193631YM128.6662722+38.3628944B 0.0 0.0 0.0 0.014.440Y14.200Y10.860B14.67214.13713.692 2 4.70208 34 39.922992+38 21 41.384881283-0193632.M128.6663458+38.3614958M 0.0 0.0 0.0 0.0 16.16713.75013.464 3 8.31008 34 39.116664+38 21 46.379881283-0193627..128.6629861+38.3628833B 0.0 0.0 0.0 0.0 18.780B 4 8.50308 34 39.301992+38 21 51.840001283-0193628..128.6637583+38.3644000B 0.0 0.0 0.0 0.018.240o 19.020e %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	0.760	08 34 39.88680	+38 21 45.9252	N9FX000499	128.666195	+38.362757	1989.184	11.42	11.89	12.29	11.67	3	10.16	0.19

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Full	_r arcsec	_RAJ2000 "h:m:s"	_DEJ2000 "d:m:s"	PPMX	RAJ2000 deg	DEJ2000 deg	pmRA mas/yr	pmDE mas/yr	Cmag mag	Rmag mag	Jmag mag	Hmag mag	Kmag mag	Nobs	P	sub
1	1.598	08 34 39.88680	+38 21 44.5284	083439.8+382144	128.666195	+38.362369	3.60	-37.46	14.380	16.401	14.672	14.138	13.693	2		O

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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