MASTER OT J003059.39+301634.3 - NEW CV IN ANDROMEDA
S. Shurpakov et. al. (Moscow State University) and others relay on The
Astronomer's Telegram 5774 that the MASTER-Tunka auto-detection system
discovered an Optical Transit (OT) source at:
RA 00h 30m 59.39s DEC +30 16' 34.3" on 2014 Jan 17.472UT. The OT unfiltered
magnitude is 16.1m (limit 18.1m). The OT is seen in 7 images. They have an
earlier image with the OT at unfiltered magnitude 18.6m on 2011 Nov 19.634UT
(limit 19.5m). The OT has faded by 0.5m (to 16.6m) on images obtained 45
minutes later, on 2014 Jan 17.504UT.

At quiescence it is identical to a blue star:
USNO-A2.0 1200-00232738 (00 30 59.46 +30 16 34.9 R=18.2 B=18.7) = USNO-B1.0
1202-0006789 (00 30 59.44 +30 16 34.7 B1=18.96 R1=18.47 B2=19.97 R2=19.21
I=N/A), SDSS J003059.40+301634.4</a> (u=18.27 g=18.07 r=18.03 i=18.03
z=18.03). There is also an UV counterpart GALEX J003059.3+301635</a>
(NUV=20.90+/-0.25).
There is nothing at this position in 1RXS, 2MASS, GCVS and AAVSO VSX. It was
at minimum light on 6 DSS plates and on 39 Palomar/NEAT images on 11
different nights from 2001 Aug. 14 to 2002 Dec. 03.
This area of sky in Andromeda was observed by Catalina Sky Survey with 260
detections from June 2005 to Sep. 2013. The object varied from 18.8m to
below 20m at quiescence with three outbursts as bright as 16.4m on 2007 Oct.
16 fading to 17.4m on Oct. 21.

Based on the blue colour, amplitude of variability (~3 mag) and historical
light curve, MASTER OT J003059.39+301634.3 is a cataclysmic variable, most
likely an eclipsing dwarf nova in outburst. Discovery and reference images
are available at: http://master.sai.msu.ru/static/OT/003059.39301634.3.png

SUPERNOVA 2013gh IN NGC 7183 (LOSS)
2013gh Aug 08.34 22 02 21.84 -18 55 00.4 18.3 3.2"E 1.2"S
David Sand: spectrum Aug 11 reveals type-Ia supernova approximately a week
before maximum
This was not announced until 2013 Nov 12 (editor)