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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)

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The HST Guide Star Catalog, Version 1.2 (Lasker+ 1996)
The Full Catalogue (25241730 positions) (25241730 rows)
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Full

_r
arcsec
_RAJ2000
"h:m:s"
_DEJ2000
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GSC

RAJ2000
deg
DEJ2000
deg
PosErr
arcsec
Pmag
mag
e_
mag
n_

Class

Plate

Epoch
yr
10.2018 13 45.3096-19 04 33.2040627201627273.43879-19.07589 1.2 9.84 0.26 63067U1987.560

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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The HST Guide Star Catalog, Version GSC-ACT (Lasker+ 1996-99)

The GSC-ACT Full Catalogue (25241730 positions) (25241730 rows)
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Full

_r
arcsec
_RAJ2000
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GSC

RAJ2000
deg
DEJ2000
deg
PosErr
arcsec
Pmag
mag
e_
mag
n_

Class

Epoch
yr
10.3118 13 45.3048-19 04 33.3840627201627273.43877-19.07594 1.2 9.84 0.27 631987.560

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
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The GSC 2.2 Catalogue (STScI, 2001)

The Full GSC2.2.1 Catalogue (455851237 objects) (455851237 rows)
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_r
arcsec
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GSC2.2

RA(ICRS)
deg
DE(ICRS)
deg
Epoch
yr
Rmag
mag
e_
mag
Bjmag
mag
e_
mag
Class

a
pix
e

12.36018 13 45.13632-19 04 33.6792S30010121146273.438068-19.0760221996.702 9.91 0.43    0 11.10 0.31

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

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The Guide Star Catalog, Version 2.3.2 (GSC2.3) (STScI, 2006)
The Full GSC2.3.2 Catalogue (945592683 objects) (945592683 rows)
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GSC2.3

RAJ2000
deg
DEJ2000
deg
Epoch
yr
Fmag
mag
jmag
mag
Vmag
mag
Nmag
mag
Class

a
pix
e

12.35518 13 45.13656-19 04 33.6756S9JA001146273.438069-19.0760211996.702 9.91  10.26  3 11.10 0.31
I/353/gsc242
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The Guide Star Catalog, Version 2.4.2 (GSC2.4.2) (STScI, 2020)
Guide Star Catalogue, Version 2.4.2 (original column names in green) (3485671481 rows)
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_r
arcsec
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GSC2

RA_ICRS
deg
DE_ICRS
deg
objID

Epoch
yr
Class

Gmag
mag
OMag
mag
Bjmag
mag
Fpgmag
mag
Epgmag
mag
Npgmag
mag
Umag
mag
Bmag
mag
Vmag
mag
umag
mag
gmag
mag
rmag
mag
imag
mag
zmag
mag
ymag
mag
Jmag
mag
Hmag
mag
Ksmag
mag
Zmag
mag
Ymag
mag
W1mag
mag
W2mag
mag
W3mag
mag
W4mag
mag
FUVmag
mag
NUVmag
mag
a
pix
e
pix
PA
pix
12.20618 13 45.1634807760-19 04 34.069058095S9JA152315273.43816967123-19.07615129211 230010121523152015.500013.579048                  12.82013.21413.96814.11313.5280 11.759 11.561 10.298     8.406 7.512 2.753 0.388          
22.32018 13 45.1327351090-19 04 33.649428149S9JA001146273.43807983398-19.07602119446 2300101211461996.7000  13.410800   9.909460                                             11.104 0.311 35.5
32.47818 13 45.1502064000-19 04 31.763928000S9JA301243273.43812586000-19.07548998000 230010123012432014.3763                    13.897                                    
43.55418 13 45.1411824000-19 04 30.318672000S9JA300206273.43808826000-19.07508852000 230010123002062013.1143                    14.816  16.958                                
54.33718 13 45.1060752000-19 04 36.477732000S9JA302685273.43794198000-19.07679937000 230010123026852012.9783                    12.615                                    
64.33818 13 44.9925120000-19 04 32.758284000S9JA305494273.43746880000-19.07576619000 230010123054942013.7093                    15.491  15.41315.401                              
74.55118 13 44.9780880000-19 04 33.533328000S9JA293425273.43740870000-19.07598148000 230010122934252012.1793                      15.79317.614                                

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)

The Full Catalogue (25258765 positions) (25258765 rows)
img(gal)

start AladinLite
Full

_r
arcsec
_RAJ2000
"h:m:s"
_DEJ2000
"d:m:s"
GSC

RAJ2000
deg
DEJ2000
deg
PosErr
arcsec
Pmag
mag
e_
mag
n_

Class

10.0018 13 45.2976-19 04 33.0960627201627273.43874-19.07586 1.2 9.84 0.27 63
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