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MASTER-SAAO: SN in PGC679288 and dwarf nova outburst

ATel #7793; P. Balanutsa, V. Lipunov, E. Gorbovskoy (Lomonosov MSU), D. Buckley (SAAO), V. Kornilov, N. Tiurina, S. Antipin, A. Kuznetsov, V. Vladimirov, I. Gorbunov, D. Vlasenko (Lomonosov Moscow State University, Sternberg Astronomicla Institute), S. Potter, M. Kotze (South African Astronomical Observatory), R. Rebolo, M. Serra-Ricart, N. Lodieu, G. Israelian (The Instituto de Astrofisica de Canarias), A. Tlatov, D. Dormidontov, V. Senik (Kislovodsk Solar Station of the Pulkovo Observatory), O. Gress, N. Budnev, K. Ivanov (Applied Physics Institute, Irkutsk State University), V. Krushinski, I. Zalozhnykh (Ural Federal University)
on 13 Jul 2015; 17:33 UT
Credential Certification: Nataly Tyurina (tiurina@sai.msu.ru)

Subjects: Optical, Request for Observations, Cataclysmic Variable, Supernovae, Transient, Variables

Referred to by ATel #: 7820

MASTER OT J220443.74-331330.6 - possible SN in PGC679288

MASTER-SAAO auto-detection system ( Lipunov et al., Advances in Astronomy, MASTER Global Robotic Net, 2010 ) discovered OT source at (RA, Dec) = 22h 04m 43.74s -33d 13m 30.6s on 2015-07-12.90902 UT. The OT unfiltered magnitude is 18.5m (the limit is 20.1m).
The OT is seen in 3 images. There is no minor planet at this place.We have reference image without OT on 2015-07-12.90153 UT with 20.1 unfiltered magnitude limit.
This PSN is in 3.2"W and 12.9"S from the center of PGC679288 (V_hel=17718km/s).
Spectral observations are required.
The discovery and reference images are available at: http://master.sai.msu.ru/static/OT/220443.74-331330.6.png

MASTER OT J012310.82-355413.3 - possible dwarf nova outburst, Ampl>2m

MASTER-SAAO auto-detection system discovered OT source at (RA, Dec) = 01h 23m 10.82s -35d 54m 13.3s on 2015-07-13.02426 UT.
The OT unfiltered magnitude is 19.5m (the limit is 20.0m).The OT is seen in 3 images. There is no minor planet at this place.We have reference image without OT on 2015-01-18.82359 UT with 20.8 unfiltered magnitude limit .
There is S2VQ007179 GSC2.3.2 star with only blue jmag=21.56.
Spectral observations are required.
The discovery and reference images are available at: http://master.sai.msu.ru/static/OT/012310.82-355413.3_1.png

List of Optical Transients discovered by MASTER

MASTER Global Robotic Net