VizieR

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

VizieR

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I/254/out The HST Guide Star Catalog, Version 1.2 (Lasker+ 1996)
The Full Catalogue (25241730 positions) (25241730 rows)
  GSC=0016002127
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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)

ColumnValue  Explain   (UCD)
_RAJ200006 51 53.9496 "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+06 36 24.408 "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)
_RAB195006 49 12.6203 "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+06 40 03.623 "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)
_Glon207.0985689 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+03.1093811 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)

GSC0016002127  (i) GSC designation (Note)   (meta.id;meta.main)
RAJ2000102.97479 deg (i) Right ascension in J2000, epoch of plate (pos.eq.ra;meta.main)
DEJ2000+06.60678 deg (i) Declination in J2000, epoch of plate (pos.eq.dec;meta.main)
PosErr 0.1 arcsec Mean error on position (stat.error)
Pmag 7.40 mag (i) photographic magnitude (see n_Pmag) (phot.mag;em.opt)
e_Pmag 0.00 mag Mean error on photographic magnitude (stat.error;phot.mag;em.opt.U)
n_Pmag 1   [0,18] Coded passband for magnitude (Note)   (meta.note)
Class0   [0,3] Class of object (0=star; 3=non-stellar) (src.class)
Plate+056  Plate designation (Note)   (obs.field)
Epoch1990.000 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)
_RAJ200006 51 53.9232 "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+06 36 24.660 "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)
_RAB195006 49 12.5939 "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+06 40 03.873 "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)
_Glon207.0984568 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+03.1093154 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)

GSC0016002127  (i) GSC designation (Note)   (meta.id;meta.main)
RAJ2000102.97468 deg (i) Right ascension in J2000, epoch of plate (pos.eq.ra;meta.main)
DEJ2000+06.60685 deg (i) Declination in J2000, epoch of plate (pos.eq.dec;meta.main)
PosErr 0.3 arcsec Mean error on position (stat.error)
Pmag 7.28 mag (i) photographic magnitude (see n_Pmag) (phot.mag;em.opt)
e_Pmag 0.34 mag Mean error on photographic magnitude (stat.error;phot.mag;em.opt.U)
n_Pmag 1   [0,18] Coded passband for magnitude (Note)   (meta.note)
Class0   [0,3] Class of object (0=star; 3=non-stellar) (src.class)
Plate03QX  Plate designation (Note)   (obs.field)
Epoch1982.881 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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Rules of usage of VizieR data

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