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[vsnet-history 1030] SN 1993J (Kato)


(1993 May 25)

subject: SN1993J, photometry at Ouda, May 23

  CCD observations on May 23 at Ouda Station, Kyoto University (Nara, Japan)
  (60-cm reflector, fl=4.8m)

              SN-starA              starB-StarA
  band*    mid UT    dmag   N       mid UT    dmag   N
  ----  -----------------------------------------------
   V     930523.462  1.035  13    930523.462  0.471  13
   B     930523.527  1.847  14    930523.527  0.406  14
   Ic    930523.485  0.936  14    930523.485  0.487  14
  ----  -----------------------------------------------
   V     930523.569  1.037  16    930523.570  0.457  15

  observer: Taichi Kato
  band: uncorrected Ouda system
  Using standard values of star B (V=11.90, B=12.40, Ic=11.30), we obtain

  SN:       V=12.46  B=13.84  Ic=11.75  (first half)
  SN:       V=12.48  B=  --   Ic=  --   (second half)
  star A:   V=11.43  B=11.99  Ic=10.81  (first half)
  star A:   V=11.44  B=  --   Ic=  --   (second half)

Regards,
Taichi Kato (Kyoto University)

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