VizieR

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

VizieR

Simple TargetList Of TargetsFast Xmatch with large catalogs or Simbad
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

  
I/271
  The Guide Star Catalog, Version 2.2 (GSC2.2) (STScI, 2001)
ReadMe+ftp
Similar Catalogs
This catalogue is obsoleted by I/305
Post annotation 		img(gal)
1.I/271/outThe Full GSC2.2.1 Catalogue (455851237 objects) (455851237 rows)
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.

Simple ConstraintList Of Constraints
 
Query by Constraints constraints help applied on Columns (Output Order: + - )
ShowSortColumn  Constraint Explain   (UCD)
  GSC2.2 (char) (i) Identification of the object (Note 1)   (meta.id;meta.main)
  RAICRS deg (i) Right Ascension in ICRS (J2000), at "Epoch" (pos.eq.ra;meta.main)
  DEICRS deg (i) Declination in ICRS (J2000) (pos.eq.dec;meta.main)
  Epoch yr (i) Epoch of the position (time.epoch)
  e_RAICRS arcsec Mean error on RAdeg (Note 2)   (stat.error;pos.eq.ra)
  e_DEICRS arcsec Mean error on DEdeg (Note 2)   (stat.error;pos.eq.dec)
  Rmag mag (n) Magnitude in F photographic band (red) (Note 6)   (phot.mag;em.opt.R)
  e_Rmag mag (n) Mean error on Rmag (Note 2)   (stat.error;phot.mag)
  Bjmag mag (n) Magnitude in J photographic band (blue) (Note 6)   (phot.mag;em.opt.B)
  e_Bjmag mag (n) Mean error on Bjmag (Note 2)   (stat.error;phot.mag)
  Vmag mag (n) Magnitude in V photographic band (green) (Note 6)   (phot.mag;em.opt.V)

ALL cols		    
(n) indicates a possible blank or NULL column(i)indexed column
  e_Vmag mag (n) Mean error on Vmag (Note 2)   (stat.error;phot.mag)
  Imag mag (n) Magnitude in N photographic band (Note 6)   (phot.mag;em.opt.I)
  e_Imag mag (n) Mean error on Imag (Note 2)   (stat.error;phot.mag)
  Class   [0,5] Object class (Note 3)   (meta.code.class)
  a pix (n)Semi-major axis of fitting ellipse (phys.angSize;src)
  e  (n)Eccentricity of fitting ellipse (src.orbital.eccentricity)
  aPA deg (n)Position angle (N thru E) of fitting ellipse (pos.posAng)
  Status  Source status flag (Note 4)   (meta.code.error)
  Np  Number of plates (Note 5)   (meta.id;instr.plate)

ALL cols		    
(n) indicates a possible blank or NULL column(i)indexed column
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