VizieR

CfA VizieR . ADAC VizieR . Cambridge (UK) VizieR . IUCAA VizieR . INASAN VizieR .

VizieR

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I/255/out The HST Guide Star Catalog, Version GSC-ACT (Lasker+ 1996-99)
The GSC-ACT Full Catalogue (25241730 positions) (25241730 rows)
  GSC=0941400702
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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.

ColumnValue  Explain   (UCD)
_RAJ200010 55 59.7576 "h:m:s" Right ascension (FK5, Equinox=J2000.0) (computed by VizieR, not part of the original data. The format may include more digits than the original data because of internal accuracy requirements in VizieR and across other CDS services) (pos.eq.ra)
_DEJ2000-77 24 40.248 "d:m:s" Declination (FK5, Equinox=J2000.0) (computed by VizieR, not part of the original data. The format may include more digits than the original data because of internal accuracy requirements in VizieR and across other CDS services) (pos.eq.dec)
_RAB195010 54 48.3392 "h:m:s" Right ascension (FK4, Equinox=B1950.0) (computed by VizieR, not part of the original data. The format may include more digits than the original data because of internal accuracy requirements in VizieR and across other CDS services) (pos.eq.ra)
_DEB1950-77 08 37.464 "d:m:s" Declination (FK4, Equinox=B1950.0) (computed by VizieR, not part of the original data. The format may include more digits than the original data because of internal accuracy requirements in VizieR and across other CDS services) (pos.eq.dec)
_Glon296.6497806 deg Galactic longitude (computed by VizieR, not part of the original data. The format may include more digits than the original data because of internal accuracy requirements in VizieR and across other CDS services) (pos.galactic.lon)
_Glat-15.9702647 deg Galactic latitude (computed by VizieR, not part of the original data. The format may include more digits than the original data because of internal accuracy requirements in VizieR and across other CDS services) (pos.galactic.lat)

GSC0941400702  (i) GSC designation (Note)   (meta.id;meta.main)
RAJ2000163.99899 deg (i) Right ascension in J2000, epoch of plate (pos.eq.ra;meta.main)
DEJ2000-77.41118 deg (i) Declination in J2000, epoch of plate (pos.eq.dec;meta.main)
PosErr 0.3 arcsec Mean error on position (stat.error)
Pmag14.91 mag (i) photographic magnitude (see n_Pmag) (phot.mag;em.opt)
e_Pmag 0.43 mag Mean error on photographic magnitude (stat.error;phot.mag;em.opt.U)
n_Pmag 0   [0,18] Coded passband for magnitude (Note)   (meta.note)
Class0   [0,3] Class of object (0=star; 3=non-stellar) (src.class)
Plate00Q9  Plate designation (Note)   (obs.field)
Epoch1976.076 yr Epoch of plate (Note)   (time.epoch)
MultT   [TF] True if multiple object / False otherwise (meta.code.multip)

VersionsGSC-all  Get parameters of that star from all GSC versions (meta.ref.url)
ColumnValue  Explain   (UCD)
_RAJ200010 55 59.8176 "h:m:s" Right ascension (FK5, Equinox=J2000.0) (computed by VizieR, not part of the original data. The format may include more digits than the original data because of internal accuracy requirements in VizieR and across other CDS services) (pos.eq.ra)
_DEJ2000-77 24 40.140 "d:m:s" Declination (FK5, Equinox=J2000.0) (computed by VizieR, not part of the original data. The format may include more digits than the original data because of internal accuracy requirements in VizieR and across other CDS services) (pos.eq.dec)
_RAB195010 54 48.3978 "h:m:s" Right ascension (FK4, Equinox=B1950.0) (computed by VizieR, not part of the original data. The format may include more digits than the original data because of internal accuracy requirements in VizieR and across other CDS services) (pos.eq.ra)
_DEB1950-77 08 37.355 "d:m:s" Declination (FK4, Equinox=B1950.0) (computed by VizieR, not part of the original data. The format may include more digits than the original data because of internal accuracy requirements in VizieR and across other CDS services) (pos.eq.dec)
_Glon296.6498173 deg Galactic longitude (computed by VizieR, not part of the original data. The format may include more digits than the original data because of internal accuracy requirements in VizieR and across other CDS services) (pos.galactic.lon)
_Glat-15.9702136 deg Galactic latitude (computed by VizieR, not part of the original data. The format may include more digits than the original data because of internal accuracy requirements in VizieR and across other CDS services) (pos.galactic.lat)

GSC0941400702  (i) GSC designation (Note)   (meta.id;meta.main)
RAJ2000163.99924 deg (i) Right ascension in J2000, epoch of plate (pos.eq.ra;meta.main)
DEJ2000-77.41115 deg (i) Declination in J2000, epoch of plate (pos.eq.dec;meta.main)
PosErr 0.2 arcsec Mean error on position (stat.error)
Pmag14.81 mag (i) photographic magnitude (see n_Pmag) (phot.mag;em.opt)
e_Pmag 0.42 mag Mean error on photographic magnitude (stat.error;phot.mag;em.opt.U)
n_Pmag 0   [0,18] Coded passband for magnitude (Note)   (meta.note)
Class0   [0,3] Class of object (0=star; 3=non-stellar) (src.class)
Plate04BV  Plate designation (Note)   (obs.field)
Epoch1976.253 yr Epoch of plate (Note)   (time.epoch)
MultT   [TF] True if multiple object / False otherwise (meta.code.multip)

VersionsGSC-all  Get parameters of that star from all GSC versions (meta.ref.url)
  
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