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
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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	04 36 37.9992	+15 50 57.336	0126601085	069.15833	+15.84926	0.2	10.05	0.40	1	0	000P	1982.877

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.

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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	0.25	04 36 38.0136	+15 50 57.480	0126601085	069.15839	+15.84930	0.2	10.06	0.40	1	0	1982.877

I/271/out
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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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No object found around (ICRS) position 04:36:38.0+15:50:57

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)
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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	0.374	04 36 38.01216	+15 50 57.6600	NA95000093	069.158384	+15.849350	1982.962			10.53	9.93	0	4.97	0.05

I/353/gsc242
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The Guide Star Catalog, Version 2.4.2 (GSC2.4.2) (STScI, 2020)

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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	Npgmag mag	Bmag mag	Vmag mag	gmag mag	rmag mag	imag mag	zmag mag	ymag mag	Jmag mag	Hmag mag	Ksmag mag	W1mag mag	W2mag mag	W3mag mag	W4mag mag	a pix	e pix	PA pix
1	0.091	04 36 38.0077948900	+15 50 57.468465554	NA95000093	069.15835047827	+15.84927588821	1303322193	2015.500	0	10.293919	9.929550	10.716000	10.394000	11.087	10.358	10.555	11.025		9.627	9.549	9.499	9.443	9.476	9.556	8.522	4.974	0.045	68.6
2	0.791	04 36 38.0423376000	+15 50 57.824376000	NA95033685	069.15850974000	+15.84939566000	1303322133685	2012.082	3
3	1.978	04 36 38.0191056000	+15 50 59.293104000	NA95032473	069.15841294000	+15.84980364000	1303322132473	2012.674	3						15.580		14.905	13.9978
4	2.078	04 36 38.1127920000	+15 50 58.613676000	NA95034345	069.15880330000	+15.84961491000	1303322134345	2013.614	3					13.113	15.034		14.150
5	2.164	04 36 37.8492744000	+15 50 57.371892000	NA95032120	069.15770531000	+15.84926997000	1303322132120	2013.391	3					15.056	15.247	14.732
6	2.439	04 36 38.1595704000	+15 50 56.564916000	NA95033521	069.15899821000	+15.84904581000	1303322133521	2013.345	3						15.040	14.817
7	2.913	04 36 37.9424976000	+15 50 54.540348000	NA95031377	069.15809374000	+15.84848343000	1303322131377	2010.555	3					15.116		15.014

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	0.13	04 36 37.9920	+15 50 57.408	0126601085	69.15830	15.84928	0.2	10.06	0.40	1	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