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 Catalogue of quasar candidates (Beauchemin+, 1990)
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1.J/MNRAS/247/182/table5Catalogue of quasar candidates (758 rows)

Query by Constraints constraints help applied on Columns (Output Order: + - )
ShowSortColumn  Constraint Explain   (UCD)
  recno  Record number assigned by the VizieR team. Should Not be used for identification. (meta.record)
  Field (char) Field name (;meta.main)
  Id  Grens reference number inside the field (;meta.main)
  RA1950 "h:m:s" Right ascension 1950 (pos.eq.ra;meta.main)
  DE1950 "d:m:s" Declination 1950 (pos.eq.dec;meta.main)
  u_DE1950 (char) [* ] Uncertainty flag on DE (Note 1)   (meta.code.error;pos.eq.dec)
  Jmag mag J magnitude (phot.mag;em.IR.J)
  PrClass  Probability class (Note 2)   (meta.code.class;stat.probability)
  gb-gv mag gb-gv grens colour index (phot.color;em.opt.B;em.opt.V)
  gu-gb mag gu-gb grens colour index (phot.color;em.opt.U;em.opt.B)
  Dms  Distance of the candidate from the nominal locus of the main sequence of stars (Note 3)   (
  Sample (char) Sample membership of the candidate (meta.code.member)
  EmLine (char) 0.1nm Wavelength of the emission lines detected on grens plates for the highest probability classes candidates PC1 (em.wl)
  Type (char) [QS] Object type of some candidates (Note 4)   (src.class)
  z  (n) []? Emmision line redshift confirmed by slit spectroscopy (src.redshift)
  _RA.icrs "h:m:s" (n)Right ascension (ICRS) (computed by VizieR, not part of the original data) (pos.eq.ra)
  _DE.icrs "d:m:s" (n)Declination (ICRS) (computed by VizieR, not part of the original data) (pos.eq.dec)

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