VizieR

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The 3 columns in color are computed by VizieR, and are not part of the original data.

Note: The Guide Star Catalog has been constructed to support the operational need of the Hubble Space Telescope. It contains over 25 million positions for about 19 million objects, of which more than 15 million are classified as stars. The version 1.2 is a new astrometric reduction which results in absolute position errors about 0.3-0.4 arcsec. (see GSC pages at URL http://www-gsss.stsci.edu/gsc/gsc.html)

I/254/out
Post annotation The HST Guide Star Catalog, Version 1.2 (Lasker+ 1996)
ReadMe+ftp
2001AJ....121.1752M
metaI/254/out

The Full Catalogue (25241730 positions) (25241730 rows)

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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	0.00	08 55 54.4464	-37 10 08.436	0715001213	133.97686	-37.16901	0.4	13.21	0.40	0	0	04HC	1979.890
2	0.40	08 55 54.4152	-37 10 08.292	0715001213	133.97673	-37.16897	0.6	13.71	0.40	0	0	01FC	1977.056

Note: The GSC-ACT (or GSC1.3) is a recalibration of the GSC1.1, the catalogue constructed to support the operational need of the Hubble Space Telescope, with the ACT, the combination of the Astrographic Catalogue and the Tycho catalogue derived from the Hipparcos mission; see http://www.projectpluto.com/gsc_act.htm for more details about this recalibration.

I/255/out
Post annotation The HST Guide Star Catalog, Version GSC-ACT (Lasker+ 1996-99)
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The GSC-ACT Full Catalogue (25241730 positions) (25241730 rows)

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Full	_r arcsec	_RAJ2000 "h:m:s"	_DEJ2000 "d:m:s"	GSC	RAJ2000 deg	DEJ2000 deg	PosErr arcsec	Pmag mag	e_ mag	n_	Class	Epoch yr
1	0.29	08 55 54.4416	-37 10 08.148	0715001213	133.97684	-37.16893	0.6	13.71	0.41	0	0	1977.056
2	0.43	08 55 54.4464	-37 10 08.004	0715001213	133.97686	-37.16889	0.4	13.21	0.40	0	0	1979.890

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.

I/271/out
Post annotation The GSC 2.2 Catalogue (STScI, 2001)
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The Full GSC2.2.1 Catalogue (455851237 objects) (455851237 rows)

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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	0.374	08 55 54.42888	-37 10 08.1264	S1333312863	133.976787	-37.168924	1994.244	11.03	0.26	13.29	0.30	0	9.52	0.06

Note: This version of the GSC-II has no proper motions, but the limits on brightness which existed on GSC2.2 (F<18.5, B_j<19.5) were removed.

I/305/out
Post annotation The Guide Star Catalog, Version 2.3.2 (GSC2.3) (STScI, 2006)
ReadMe+ftp
2008AJ....136..735L
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The Full GSC2.3.2 Catalogue (945592683 objects) (945592683 rows)

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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 mag	Nmag mag	Class	a pix	e
1	0.378	08 55 54.42912	-37 10 08.1192	S6BA000863	133.976788	-37.168922	1994.244	11.03	13.29		12.94	0	9.52	0.06

I/353/gsc242
Post annotation

The Guide Star Catalog, Version 2.4.2 (GSC2.4.2) (STScI, 2020)

ReadMe+ftp

2008AJ....136..735L

Guide Star Catalogue, Version 2.4.2 (original column names in green) (3485671481 rows)

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Full	_r arcsec	_RAJ2000 "h:m:s"	_DEJ2000 "d:m:s"	GSC2	RA_ICRS deg	DE_ICRS deg	objID	Epoch yr	Class	Gmag mag	Bjmag mag	Fpgmag mag	Npgmag mag	Bmag mag	Vmag mag	gmag mag	rmag mag	imag mag	zmag mag	Jmag mag	Hmag mag	Ksmag mag	W1mag mag	W2mag mag	W3mag mag	W4mag mag	a pix	e pix	PA pix
1	0.648	08 55 54.4127050892	-37 10 08.070765453	S6BA000863	133.97668023670	-37.16890083745	21333312863	2015.500	0	11.354220	13.287900	11.033500	12.938000	14.356000	12.181000	13.217	11.478	10.760	10.259	12.109	7.713	7.409	7.001	7.172	6.983	6.839	9.516	0.062	49.4
2	0.988	08 55 54.5109585600	-37 10 07.818534840	S6BA195058	133.97712899400	-37.16883848190	21333312195058	2012.000	3											12.044
3	1.021	08 55 54.3989990400	-37 10 09.285041640	S6BA187559	133.97666249600	-37.16924584490	21333312187559	2012.000	3											11.961
4	1.637	08 55 54.3108319200	-37 10 08.667714360	S6BA205633	133.97629513300	-37.16907436510	21333312205633	2012.000	3											12.346
5	1.863	08 55 54.3111612000	-37 10 07.509800280	S6BA173317	133.97629650500	-37.16875272230	21333312173317	2012.000	3											12.083
6	4.614	08 55 54.7608983887	-37 10 05.738798669	S6BA152472	133.97815058680	-37.16824495976	21333312152472	2015.500	0	17.272264										14.336

Note: The Guide Star Catalog has been constructed to support the operational need of the Hubble Space Telescope; it is primarily based on an all-sky, single epoch, single passband collection of Schmidt plates. It contains over 25 million positions for about 19 million objects, of which more than 15 million are classified as stars.

I/220/out
Post annotation The HST Guide Star Catalog, Version 1.1 (Lasker+ 1992)
ReadMe+ftp

metaI/220/out

The Full Catalogue (25258765 positions) (25258765 rows)

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Full	_r arcsec	_RAJ2000 "h:m:s"	_DEJ2000 "d:m:s"	GSC	RAJ2000 deg	DEJ2000 deg	PosErr arcsec	Pmag mag	e_ mag	n_	Class
1	1.18	08 55 54.3480	-37 10 08.328	0715001213	133.97645	-37.16898	0.4	13.21	0.40	0	0
2	1.91	08 55 54.2880	-37 10 08.652	0715001213	133.97620	-37.16907	0.6	13.71	0.41	0	0

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