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MASTER: PSN in SDSS galaxy

ATel #8113; O. Gress, V. Lipunov, E. Gorbovskoy (Lomonosov MSU), R. Rebolo, M. Serra-Ricart, N. Lodieu, G. Israelian (The Instituto de Astrofisica de Canarias), V. Kornilov, N. Tiurina, P. Balanutsa, I. Gorbunov, D. Vlasenko, E. Popova (M. V. Lomonosov MSU, SAI), A. Tlatov, V. Senik, D. Dormidontov (Kislovodsk Solar Station of the Pulkovo Observatory),N. Budnev, K. Ivanov (Irkutsk State University, Applied Physics Institute), D. Buckley, S. Potter, M. Kotze (South African Astronomical Observatory), V. Krushinsky (Ural Federal University), Yu. Sergienko, A. Gabovich, V. Yurkov (Blagoveschensk Educational State University)
on 2 Oct 2015; 07:14 UT
Credential Certification: Nataly Tyurina (tiurina@sai.msu.ru)

Subjects: Optical, Request for Observations, Supernovae, Transient

MASTER-IAC auto-detection system ( Lipunov et al., Advances in Astronomy, MASTER Global Robotic Net, 2010 ) discovered OT source at (RA, Dec) = 16h 33m 04.91s +24d 41m 43.8s on 2015-09-30.90946 UT.
The OT unfiltered magnitude is 17.0m (limit 19.2m).
The OT is seen in 3 images. There is no minor planet at this place. We have reference image without OT on 2015-06-08.08354 UT with unfiltered magnitude limit 19.6m.
This PSN is in 1.7"W and 4.1"S from the SDSSJ163304.98+244148.1 galaxy .
Spectral observations are required.
The discovery and reference images are available at http://master.sai.msu.ru/static/OT/163304.91244143.8.png

List of Optical Transients discovered by MASTER

MASTER Global Robotic Net