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[vsnet-history 19] EY Cyg chart, SW UMa (Kato)


  (1992 Apr. 7)

Dear Patrick,
  Because of trouble in CCD, only small fields could be taken
and I did not take deep images to measure fainter comparisons.
Absolute photometry was not possible because of the fog.

                    N

             *115    *108
                                  *138
                   o EY
                *141(combined)

 *133         *141

CCD(V) Ouda 1992.04.05

  High spped photometry of EY Cyg could not find superhumps.  This
supports the SS Cyg classification of this star.  However there was
small oscillation of period about 10min.  This may be QPOs.

SW UMa: at about V=15.3 on Apr. 5,  superhumps persisted (with much
irregularity).

Regards
Taichi Kato

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