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  I/305
 The Guide Star Catalog, Version 2.3.2 (GSC2.3) (STScI, 2006)
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1.I/305/out The Full GSC2.3.2 Catalogue (945592683 objects) (945592683 rows)
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.
  Query Setup (usage)
Maximum Entries per table:
Output layout:
Output Order:
+ - 		 
  Query by Position on the Sky  (Adapt Form to use a List of targets)
Target Name (resolved by Simbad) or Position:

Position in Sexagesimal, or Decimal ° 		Target dimension:

Radius or Box size 		 
  Output preferences for Position:
  rx,yPositionGalactic  J2000    B1950  Ecl.J2000  none
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r and x,y are the distance to the Target;
Position is in the same coordinate system as Target.
  Query by Constraints applied on Columns
ShowSortColumn  Constraint Explain   (UCD)
  GSC2.3 (char) [NS0-9A-Z] Identification of the object (Note 1)   (meta.id;meta.main)   (ID_MAIN)
  GSC1 (char) Identification in GSC Version 1 (Cat. I/254)   (meta.id)   (ID_ALTERNATIVE)
  HTM6 (char) [NS0-3] HTM-6 designation as in GSC2.2 (Note 1)   (obs.field)   (ID_REGION)
  RAJ2000 deg Right Ascension in ICRS (J2000), at "Epoch"   (pos.eq.ra;meta.main)   (POS_EQ_RA_MAIN)
  DEJ2000 deg Declination in ICRS (J2000)   (pos.eq.dec;meta.main)   (POS_EQ_DEC_MAIN)
  e_RAdeg arcsec Mean error on RAdeg (Note 2)   (stat.error;pos.eq.ra)   (ERROR)
  e_DEdeg arcsec Mean error on DEdeg (Note 2)   (stat.error;pos.eq.dec)   (ERROR)
  Epoch yr Epoch of the position   (time.epoch)   (TIME_EPOCH)
  Fmag mag (n) Magnitude in F photographic band (red)   (phot.mag;em.opt.R)   (PHOT_PHG_R)
  e_Fmag mag (n) Mean error on Rmag   (stat.error;phot.mag)   (ERROR)
  n_Fmag  (n) Coded emulsion / bandpass / filter (Note 2)   (meta.note)   (NOTE)

ALL cols		    
(n) indicates a possible blank or NULL column  
  jmag mag (n) Magnitude in Bj photographic band (blue)   (phot.mag;em.opt.B)   (PHOT_PHG_BJ)
  e_jmag mag (n) Mean error on jmag   (stat.error;phot.mag)   (ERROR)
  n_jmag  (n) Coded emulsion / bandpass / filter (Note 2)   (meta.note)   (NOTE)
  Vmag mag (n) Magnitude in V photographic band (green)   (phot.mag;em.opt.V)   (PHOT_PHG_V)
  e_Vmag mag (n) Mean error on Vmag   (stat.error;phot.mag;em.opt.V)   (ERROR)
  n_Vmag  (n) Coded emulsion / bandpass / filter (Note 2)   (meta.note)   (NOTE)
  Nmag mag (n) Magnitude in N photographic band (0.8µm)   (phot.mag;em.IR.8-15um)   (PHOT_IR_N:10.4)
  e_Nmag mag (n) Mean error on Nmag   (stat.error;phot.mag;em.IR.8-15um)   (ERROR)
  n_Nmag  (n) Coded emulsion / bandpass / filter (Note 2)   (meta.note)   (NOTE)
  Umag mag (n) Magnitude in U band (Johnson)   (phot.mag;em.opt.U)   (PHOT_JHN_U)
  e_Umag mag (n) Mean error on Umag   (stat.error;phot.mag;em.opt.U)   (ERROR)
  n_Umag  (n) Coded emulsion / bandpass / filter (Note 2)   (meta.note)   (NOTE)
  Bmag mag (n) Magnitude in B band (Johnson blue)   (phot.mag;em.opt.B)   (PHOT_JHN_B)
  e_Bmag mag (n) Mean error on Bmag   (stat.error;phot.mag;em.opt.B)   (ERROR)
  n_Bmag  (n) Coded emulsion / bandpass / filter (Note 2)   (meta.note)   (NOTE)
  Class   [0,5] Object class (Note 3)   (meta.code.class)   (CLASS_OBJECT)
  Status  Source status flag (Note 4)   (meta.code.error)   (CODE_MISC)
  M (char) [M] 'M' for multiple object (Note 5)   (phot.mag;em.IR.4-8um)   (PHOT_JHN_M)
  a pix (n) Semi-major axis of fitting ellipse   (phys.angSize;src)   (EXTENSION_RAD)
  e  (n) Eccentricity of fitting ellipse   (src.orbital.eccentricity)   (PHYS_ECCENTRICITY)
  aPA deg (n) Position angle (N->E) of fitting ellipse   (pos.posAng)   (POS_POS-ANG)

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