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Bright Possible Supernova discovered by MASTER

ATel #6484; N. Tiurina, D. Denisenko, V. Lipunov, E. Gorbovskoy, 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, V. Shumkov, S. Shurpakov (MASTER team members), H. Levato, C. Saffe (ICATE), C. Mallamaci, C. Lopez, F. Podest (OAFA)
on 22 Sep 2014; 11:01 UT
Credential Certification: Nataly Tyurina (tiurina@sai.msu.ru)

Subjects: Optical, Supernovae, Transient

Referred to by ATel #: 6487, 6488

MASTER OT J044212.20+230616.7 - possible supernova in PGC 1681539

MASTER-Amur auto-detection system discovered OT source at (RA, Dec) = 04h 42m 12.20s +23d 06m 16.7s on 2014-09-20.81259 UT. The OT unfiltered magnitude is 15.4m (limit 18.9m). The OT is seen in 3 images. There is no minor planet at this place. We have reference image without OT on 2012-09-26.76938 UT with unfiltered magnitude limit 19.1m.

The new object is located 5" west and 4" south of the nucleus of galaxy PGC 1681539 = 2MASX J04421256+2306209 with unknown redshift. Spectral confirmation is required. The discovery and reference images are available at: http://master.sai.msu.ru/static/OT/044212.20230616.7.png

List of Optical Transients discovered by MASTER

Global MASTER Robotic Net