[vsnet-alert 16806] CSS 091026:063438+412047 outburst

[Denis Denisenko]

MASTER-Tunka robotic telescope has caught this dwarf nova in Auriga
(magnitude range 15.8-20.5 CV according to AAVSO VSX) in bright
outburst:

CSS 091026:063438+412047
  20140120.690   156C   MASTER-Tunka
  20140120.720   156C   MASTER-Tunka

Light curve from Catalina Sky Survey:
http://nesssi.cacr.caltech.edu/catalina/20091026/910261400284160650p.html

There was a likely "prediscovery" superoutburst in November-December
2008 when the star had faded by 1.0m (from 15.8 to 16.8) in 9 days
from Nov. 24 to Dec. 03.

Color-combined DSS finder chart (5'x5' FOV):
http://master.sai.msu.ru/static/OT/J063437+412047-BRIR5x5.jpg

This area of sky is not covered by SDSS. IDs from other catalogs:
USNO-B1.0 1313-0173376 (06 34 37.973 +41 20 46.92 B1=20.75 R1=19.66 B2=20.65)
GALEX J063437.9+412045 (FUV=21.63+/-0.31 NUV=21.58+/-0.23)

Orbital period is unknown.

Denis Denisenko
Member of MASTER team at SAI MSU