[vsnet-alert 16884] MASTER OT J065140.54+480441.6 - new UGWZ candidate (15.9m)

[Denis Denisenko]

Vladislav Shumkov has found new large-amplitude dwarf nova in Auriga
among MASTER-Tunka transients from the last night. The object has been
published in ATel #5884, see
http://www.astronomerstelegram.org/?read=5854

MASTER OT J065140.54+480441.6
  20140205.562   158C   MASTER-Tunka
  20140205.565   159C   MASTER-Tunka
  20140205.613   158C   MASTER-Tunka
  20140205.619   159C   MASTER-Tunka
  20140205.623   160C   MASTER-Tunka

MASTER discovery and reference images:
http://master.sai.msu.ru/static/OT/065140.54480441.6.png

There is nothing at this position on DSS plates and on their
combination to limiting magnitude ~22.5 (probably deeper).
Color-combined finder chart (sum of two BRIR images):
http://master.sai.msu.ru/static/OT/J065140+480441-BRIR5x5.jpg

Outburst amplitude is more than 6.5m. No previous outbursts were
detected by DSS (15 plates), NEAT, CSS and MASTER. The object is
likely a new variable of WZ Sge type. Time-resolved photometry is
strongly encouraged!

Denis Denisenko
Member of MASTER team at SAI MSU