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Possible Supernova in AGC 748823 discovered by MASTER

ATel #6481; V. Shumkov, D. Denisenko, V. Lipunov, E. Gorbovskoy, N. Tiurina, P. Balanutsa, V. Kornilov, N. Shatskiy, V. Chazov, A. Kuznetsov, V. Vladimirov, V. Yecheistov (Moscow State University, SAI), A. Parkhomenko, A. Tlatov, D. Dormidontov, V. Senik (Kislovodsk Solar Station of Pulkovo Observatory), K. Ivanov, S. Yazev, N. Budnev, E. Konstantinov, O. Chuvalaev, V. Poleshchuk, O. Gress (Irkutsk State University), V. Yurkov, Y. Sergienko, D. Varda, E. Sinyakov, A. Gabovich (Blagoveshchensk Educational University), V. Krushinsky, I. Zalozhnih, A. Popov, A. Bourdanov (Ural Federal University), P. Podvorotny, S. Shurpakov (MASTER team members), H. Levato, C. Saffe (ICATE), C. Mallamaci, C. Lopez, F. Podest (OAFA)
on 17 Sep 2014; 12:55 UT
Credential Certification: Nataly Tyurina (tiurina@sai.msu.ru)

Subjects: Optical, Supernovae, Transient

MASTER OT J015249.50+154607.2 - possible supernova

MASTER-Kislovodsk auto-detection system discovered OT source at (RA, Dec) = 01h 52m 49.50s +15d 46m 07.2s on 2014-09-16.01830 UT. The OT unfiltered magnitude is 18.5m (limit 19.5m). The OT is seen in 4 images. There is no minor planet at this place. We have reference image without OT on 2010-11-01.85013 UT with unfiltered magnitude limit 19.8m.

The new object is located 5" west and 6.5" north of the nucleus of galaxy SDSS J015249.83+154600.7 (g=17.62 r=17.29 i=17.10) = GALEX J015249.9+154600 (FUV=19.25 NUV=19.00). There is a radio source AGC 748823 near this position in NED with coordinates 01h 52m 49.3s +15d 46m 01s and redshift z=0.04381 according to The Arecibo Legacy Fast ALFA Survey (M. Haynes et al., AJ 142, 170, 2011).

Spectral confirmation is required. The discovery and reference images are available at: http://master.sai.msu.ru/static/OT/015249.50154607.2.png

List of Optical Transients discovered by MASTER

Global MASTER Robotic Net