[vsnet-alert 12375] Re: HT Cas: superhumps update

[Taichi Kato]

Re: HT Cas: superhumps update

   We have received further data from Crimean Astrophys. Obs. team
(Alex Baklanov, Elena Pavlenko), Okayama U. of Sci. team and Maehara-san.
The most recent Crimea data have caught the second "superhump-eclipse"
conjunction.  The minimum depth of the eclipse was larger (0.5 mag below
from the mean magnitude) than in the first conjunction (around Nov. 5.6).
After this, the depths of eclipses and amplitudes of superhumps grew
rapidly.

Updated values:

   The mean superhump period: 0.076311(3) d.
   Measured period of the beat phenomenon: 2.137(1) d.
   (expected period from the above Psh and Porb: 2.123 d)