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 VRI photometry of stars in 12 BL Lac objects (Fiorucci+, 1996)
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1.J/A+AS/116/403/table3VRcIc comparison stars in the fields of BL Lacertae objects (58 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)
  Name (char) Names of BL Lac objects and respective comparison stars (;meta.main)
  RA2000 "h:m:s" Right ascension (2000) (pos.eq.ra;meta.main)
  DE2000 "d:m:s" Declination (2000) (pos.eq.dec;meta.main)
  Vmag mag V Johnson magnitude (phot.mag;em.opt.V)
  e_Vmag mag Standard deviation on V magnitude (stat.error)
  Rcmag mag Cousins R magnitude (phot.mag;em.opt.R)
  e_Rcmag mag Standard deviation on Rc magnitude (stat.error)
  Icmag mag Cousins I magnitude (phot.mag;em.opt.I)
  e_Icmag mag Standard deviation on Ic magnitude (stat.error)
  Number   Number of nights utilized to calibrate each star (meta.number)
  Refer (char) References for those objects that have previously published photometric sequences in at least one of the VRI filters (Note 1)   (meta.ref)

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