[vsnet-alert 17894] OT J213806.6+261957: already stage B superhumps

[Taichi Kato]

OT J213806.6+261957: already stage B superhumps

   Kiyota-san, Itoh-san, Osaka Kyoiku U. team
(Daiki Fukushima, Kazunari Masumoto, Hiroki Kinoshita,
relayed by Katsura Matsumoto) and Josch Hambsch
have reported new observations.  The object already
started to show stage B superhumps on Oct. 24 and
stage A superhumps lasted less than 1 d.
The period of stage A superhumps (0.0560(2) d)
indicates q=0.10(2).  The outburst behavior and
large q value support the interpretation that this
object resembles an ordinary SU UMa-type dwarf nova
rather than an extreme WZ Sge-type one.