[vsnet-alert 10607] V1251 Cyg: humps, orbital period?

[Taichi Kato]

V1251 Cyg: humps, orbital period?

   We have received further data from Maehara-san, Higashi-Hiroshima
Observatory team, Nakajima-san, Kyoto team (observer: Ohshima-san).
The object continues to fade slowly.  Superimposed on this fading trend
there were apparent low-amplitude modulations, which had grown to
0.06 mag by Oct. 21.  A period analysis of the data after Oct. 20.7 UT
has yielded a mean period of 0.0738(1) d.  A timing analysis of observed
maxima gave 0.0736(1) d.  If this reflects orbital period, the fractional
superhump excess is 3.3%, which might be slightly larger than expected
for this period.  Exact identification of the current periodicity
apparently awaits further continuous observations.

   No regular superhumps seems to have appeared as of now (exceptional
for this superhump period).