[vsnet-alert 8843] ASAS 102522-1542.4: early superhump and common superhump period

[Hiroyuki Maehara]

Dear colleagues,

I performed period analysis using the data reported by VSOLJ members
(K.Nakajima, S.Kiyota, and H.Maehara).

On Jan. 27 and 28, the data show double-peaked humps with an amplitude
of 0.05 mag which seem to be early superhumps.
The best estimated early superhump period is 0.06157(6) days.
After Jan. 29, our data clearly show single-peaked superhumps with an
amplitude of 0.2 mag. The period of superhump is 0.06333(4) days.
The superhump period is 2.8% longer than the early superhump period.

ASAS 102522-1542.4 is still bright (about 14 mag on Feb. 5).
Further observations are strongly encouraged.

Regards,
Hiroyuki Maehara