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Possible Superluminous MASTER SN J172624.20+335044.4 discovery in SDSS galaxy.

ATel #7346; V. Vladimirov, V. Lipunov, E. Gorbovskoy, S. Antipin, N. Tiurina, P. Balanutsa, V. Kornilov, A. Kuznetsov, V. Chazov, E. Popova, V. Shumkov, S. Shurpakov (Lomonosov Moscow State University, SAI), D. Buckley, S. Potter, A. Kniazev, M. Kotze (The South African Astronomical Observatory), O. Gress, K. Ivanov, N. Budnev, S. Yazev, V. Poleshchuk, E. Konstantinov, O. Chuvalaev (Irkutsk State University), A. Tlatov, D. Dormidontov, V. Senik, A. Parkhomenko, (Kislovodsk solar station of the Pulkovo observatory RAS), V. Yurkov, Y. Sergienko, A. Gabovich (Blagoveshchensk Educational University), V. Krushinsky, I. Zalozhnih, A. Popov, A. Bourdanov (Ural Federal University)
on 5 Apr 2015; 20:04 UT
Credential Certification: Nataly Tyurina (tiurina@sai.msu.ru)

Subjects: Optical, Request for Observations, Supernovae

MASTER OT J172624.20+335044.4 discovery - possible superluminous SN in SDSS far galaxy

MASTER-Kislovodsk auto-detection system ( Lipunov et al., Advances in Astronomy, MASTER Global Robotic Net, 2010 ) discovered OT source at (RA, Dec) = 17h 26m 24.20s +33d 50m 44.4s on 2015-04-01.97351 UT.

The OT unfiltered magnitude is 17.6m (limit 18.9m) and is seen in 5 images. There are images of OT on 2015-04-04.953UT with m_OT=18.1.
We have reference image without OT on 2014-04-11.987UT with 19.6 unfiltered magnitude limit.

There is SDSS galaxy with g_mag=21.86, r_mag=21.38 in 0.128 arcsec of our PSN.

Spectral observations are required.

The discovery and reference images are available at: http://master.sai.msu.ru/static/OT/MASTERJ172624.20+335044.4.jpg

List of Optical Transients discovered by MASTER

Global MASTER Robotic Net