[vsnet-alert 15790] MASTER OT J221926.10+395436.3 (16.1m) - new UGWZ candidate

[Denis Denisenko]

Also published in the same ATel #5098,
http://www.astronomerstelegram.org/?read=5098

MASTER OT J221926.10+395436.3
  20121118.498  <186C  MASTER-Tunka
  20130602.741  16.05C MASTER-Tunka
  20130602.772  16.15C MASTER-Tunka
  20130602.774  16.25C MASTER-Tunka
Note: typical photometric errors of these observations were about
0.07m, so it is hard to say if the fading by 0.2m in 45 minutes was
real or not.

Discovery and reference images:
http://master.sai.msu.ru/static/OT/221926.10395436.3.png

There is nothing at this position on the color-combined SDSS image to
the limiting magnitude ~23 or even fainter. The outburst amplitude is
~7m or more, hence the object is likely a dwarf nova of UGWZ (WZ Sge)
subtype. Photometric observations are encouraged!

Denis Denisenko
Member of MASTER team at SAI MSU