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(1993 Nov. 17)
subject: superoutburst of KV And
A faint dwarf nova KV And was detected in outburst by M. Iida (Nagano,
Japan, a member of VSOLJ) using 16-cm reflector and ST-6 CCD.
The course of the outburst is as follows.
0500---------------------------------------------------------------------------
0501 YYYY+
0502 MM DD.DDD MAGN MS SEQ OBSERVER NOTES SOURCE
0503---------------------------------------------------------------------------
0504
1993 11 03.476 [16.6 C GS *Iida, M. 16-cm refl. + ST-6 VSOLJ
1993 11 09.492 [17.5 C GS *Iida, M. 16-cm refl. + ST-6 VSOLJ
1993 11 15.432 14.3 C GS *Iida, M. 16-cm refl. + ST-6 VSOLJ
1993 11 16.461 14.3 V GS *Kato, T. 60-cm refl Mail(kat)
The outburst was subsequently confirmed by T. Kato and C. Kunjaya (Ouda
Station of Kyoto University, Nara, Japan) using a 60-cm reflector + CCD.
Time-resolved CCD photometry on Nov. 16, 1993 revealed distinct superhumps
with an amplitude of 0.27 mag in V and a period of 1 hr 44 min.
Another superhump maximum was independetly detected by M. Okyudo (Nishi-
Harima Astronomical Observatory, Hyogo, Japan) by a 60-cm refrector and
a CCD. The superhumps showed a peaky maximum and a gradual decline,
quite typical for superhumps early in their development.
Because this dwarf nova is one of the most distant (halo) dwarf nova with
determined physical parameters, further observations are strongly
encouraged to determine the accurate superhump period, orbital period and
so on. Especially observations on the following nights are valuable,
because we expect a poor weather for a coming few days in Japan.
The object is located at:
02h 14m 08s.35 +40 27' 34".6 (1950)
14.6-22.5:p (GCVS4)
finding chart: Publ. Astron. Soc. Pacific 105, 127 (1993)
If you are interested in our joint program, please inform me.
Taichi Kato
Kyoto University
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vsnet-adm@kusastro.kyoto-u.ac.jp
