200th Optical Transient discovered by MASTER in 2013
ATel #5693; V. Yecheistov, D. Denisenko, V. Lipunov, E. Gorbovskoy, N. Tiurina, P. Balanutsa, V. Kornilov, N. Shatskiy, V. Chazov, A. Kuznetsov, A. Rufanov, V. Vladimirov (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 25 Dec 2013; 15:11 UT
Credential Certification: Vladimir Lipunov (firstname.lastname@example.org)
Subjects: Optical, Supernovae, Transient
MASTER OT J153215.01+301933.2 - possible Supernova
MASTER-Kislovodsk auto-detection system discovered OT source at (RA, Dec) = 15h 32m 15.01s +30d 19m 33.2s on 2013-12-25.03311 UT. The OT unfiltered magnitude is 17.0m (limit 18.1m). The OT is seen in 4 images. There is no minor planet at this place. We have reference image without OT on 2012-04-14.82252 UT with unfiltered magnitude limit 19.9m.
The OT is located 1.8" west and 0.6" south of the extended object SDSS J153215.15+301933.8 (u=21.07 g=19.83 r=19.47 i=19.27 z=19.15) with Type: GALAXY, major axis 3.2" and minor axis 2.2" according to NED.
We suggest that MASTER OT J153215.01+301933.2 is likely a supernova. Spectral confirmation is required. The discovery and reference images are available at: http://master.sai.msu.ru/static/OT/153215.01301933.2.png
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