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J/A+A/542/A43
  V2493 Cyg BVRI long term photometry (Semkov+, 2012)
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2012A&A...542A..43S
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1.J/A+A/542/A43/table1Photometric CCD observations of V2493 Cyg during the period 1994-2012 [timeSerie](light curve) (280 rows)
2.J/A+A/542/A43/table3Data from archival photographic observations of V2493 Cyg during the period 1932-1998 [timeSerie](light curve) (136 rows)

Simple ConstraintList Of Constraints
 
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Column  Constraint Explain   (UCD)
  (ALL)recno  Record number assigned by the VizieR team. Should Not be used for identification. (meta.record)
   (ALL)Date "Y:M:D" (n)Observation date (time.epoch;obs)
   (ALL)JD d Julian date (time.epoch)
  (1)Imag mag (n) I magnitude (phot.mag;em.opt.I)
  (1)Rmag mag (n) R magnitude (phot.mag;em.opt.R)
  (1)Vmag mag (n) V magnitude (phot.mag;em.opt.V)
  (1)Bmag mag (n) B magnitude (phot.mag;em.opt.B)
  (1)Tel (char) Telescope used (phys.size;instr.tel)
  (1)CCD (char) CCD used (meta.id;instr)
  (2)Obs (char) Observatory (meta.id;instr.obsty)
  (2)Plate (char) Plate number (meta.id;instr.plate)

ALL cols		    
(n) indicates a possible blank or NULL column(i)indexed column
  (2)Emul (char) Emulsion (instr.plate.emulsion)
  (2)Filt (char) Filter (meta.id;instr.filter)
  (2)Band (char) [BVRI pg] Observed band (instr.bandpass)
  (2)l_mag (char) [=>] Limit flag on mag (meta.code.error)
  (2)mag mag Magnitude in Band (phot.mag)
  (2)e_mag mag rms uncertainty on mag (stat.error;phot.mag)

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