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THE ASTRONOMER Electronic Circular No 2780      2011 Nov 20 18.35UT
Ed:Guy M Hurst, 16,Westminster Close, Kempshott Rise,  Basingstoke,
Hants, RG22 4PP,England.Telephone/FAX(01256)471074Int:+441256471074
INTERNET: GUY@TAHQ.DEMON.CO.UK      Backup: gmh@wdcc1.bnsc.rl.ac.uk
WORLD WIDE WEB                         http://www.theastronomer.org
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TCP J06112800+4041087
D. Denisenko, Moscow et. al., report:
We have observed the transient object in Auriga discovered on 2011 Nov. 
18.07UT at magnitude 15.8 by Jan Vales at Crni Vrh observatory in 
Slovenia. Our observations were performed remotely with the 0.40-m 
Djigit telescope of Ka-Dar Observatory's TAU Station (Nizhniy Arkhyz, 
Karachay-Cherkessia, Russia). Forty 120-sec unfiltered exposures were 
obtained. Data are covering 2.0 hours from 22:18 UT on Nov. 19 to 00:16 
UT on Nov. 20 with a 12-minute gap at 23:25-23:37 due to meridian 
crossing.

The position of the new variable is:
RA 06h 11m 28.00s DEC +40 41' 08.8" (2000)

Using R=16.1 for comparison star USNO-A2.0 1275-06016230 we have 
obtained the light curve of the new variable. It is showing a likely 
orbital hump with an amplitude of 0.12m (16.46-16.58) and apparent 
fading by 0.04m in 2 hours. A very preliminary analysis of the light 
curve suggests the likely orbital period of 1.35 hr (0.056 d). The 
longer time series are required to improve the period value.

Nothing is visible at the position of new variable on Palomar plates 
neither at any individual image nor at the sum of them. The limiting 
magnitude of the combination of all images is about 22.5m. Comparison of 
TAU/Ka-Dar and NEAT images is uploaded at 
http://pics.livejournal.com/bigdenru/pic/000ay77f

While more data are obviously necessary, one can suggest from the 
outburst amplitude (more than 6 magnitudes) and the fast variability 
that this transient is likely a new dwarf nova of
UGWZ cataclysmic type.

Guy M Hurst