[vsnet-alert 15480] QZ Ser outburst

[Denis Denisenko]

MASTER-Amur robotic telescope has detected this dwarf nova in outburst
on two 60-sec unfiltered survey images.

QZ Ser
  20130311.028  11.64C  MASTER-Amur
  20130311.060  11.66C  MASTER-Amur

QZ Ser = SDSS J155654.48+210719.0
http://skyserver.sdss3.org/dr8/en/tools/explore/obj.asp?id=1237665373869768818
u=18.47 g=17.92 r=17.21 i=16.88 z=16.68

Orbital period is 0.083161d, according to CB catalogue by Ritter and Kolb.

Previous outburst of QZ Ser was detected by Patrick Schmeer two years
ago, on 2011 Mar. 12. See [vsnet-alert 12968] and [vsnet-alert 12970].
It has quickly faded then, and no superhumps were detected. May be
this time?

Denis Denisenko
Member of MASTER team at SAI MSU