[vsnet-alert 16982] SDSS J090221.35+381941.9 outburst!

[Denis Denisenko]

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

SDSS J090221.35+381941.9
  20140306.748  14.05C  MASTER-Kislovodsk
  20140306.749  14.08C  MASTER-Kislovodsk
  20140306.750  14.05C  MASTER-Kislovodsk
  20140306.773  13.98C  MASTER-Kislovodsk
  20140306.774  13.97C  MASTER-Kislovodsk
  20140306.775  14.14C  MASTER-Kislovodsk
  20140306.796  14.09C  MASTER-Kislovodsk
  20140306.797  13.97C  MASTER-Kislovodsk
  20140306.798  13.98C  MASTER-Kislovodsk

Orbital period is 0.03355d (48.3 minutes).

SDSS J090221.35+381941.8
u=20.16 g=20.23 r=20.47 i=20.58 z=20.76
http://skyserver.sdss3.org/dr8/en/tools/explore/obj.asp?id=1237657874863948140

Denis Denisenko
Member of MASTER team at SAI MSU