[vsnet-campaign-dn 1779] SDSSp_J173008.38+624754.7: superhump period revised

[Makoto Uemura <uemura@kusastro.kyoto-u.ac.jp>]

SDSSp_J173008.38+624754.7: superhump period revised

    We combined the Kyoto team data on October 23 with the data 
kindly sent by T. Vanmunster and A. Oksanen, and performed period 
analysis.  We obtained a period of 0.07898 (13) d which is somewhat 
shorter than previously reported using only October 22 observations.  
The average profile of humps is single-peaked, very similar to 
typical superhumps with an amplitude of 0.2mag.  As reported by 
T. Vanmunster, the light curve of the earliest phase which we have 
on October 19/20 also shows a hump with probable single peak.  
Our period analysis imply that the phase of its hump peak may however 
be different from that on October 22-23.  This may indicate period 
changes of the superhump period.

    Futrher observations are encouraged.

Regards,
Makoto Uemura

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