[vsnet-outburst 16591] SDSS J090221.35+381941.9

[Taichi Kato]

SDSS J090221.35+381941.9

> MASTER-Kislovodsk has detected this ultra-short period AM CVn-type
> dwarf nova in bright outburst:

> Orbital period is 0.03355d (48.3 minutes).

   Of course, this is a top priority target.  We may expect
to detect (early) superhumps!  If we can detect stage A
superhumps, we can measure the mass ratio (difficult
to measure for AM CVn-type objects).