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Bright High Amplitude OT detected by MASTER

ATel #8158; V. Shumkov, V. Lipunov, E. Gorbovskoy, P. Balanutsa (Lomonosov MSU), V. Kornilov, N. Tiurina, A. Kuznetsov, I. Gorbunov, D. Vlasenko, V. Chazov, E. Popova (M. V. Lomonosov MSU, SAI), O. Gress, N. Budnev, K. Ivanov (Irkutsk State University, Applied Physics Institute), D. Buckley, S. Potter, M. Kotze (South African Astronomical Observatory), R. Rebolo, M. Serra-Ricart, N. Lodieu, G. Israelian (The Instituto de Astrofisica de Canarias), A. Tlatov, V. Senik, D. Dormidontov (Kislovodsk Solar Station of the Pulkovo Observatory), V. Krushinskiy (Ural Federal University), Yu. Sergienko, A. Gabovich, V. Yurkov (Blagoveschensk Educational State University)
on 13 Oct 2015; 15:45 UT
Credential Certification: Nataly Tyurina (tiurina@sai.msu.ru)

Subjects: Optical, Cataclysmic Variable, Transient

MASTER OT J214254.34+153642.8

MASTER-Tunka auto-detection system discovered OT source at (RA, Dec) = 21h 42m 54.34s +15d 36m 42.8s on 2015-10-13.59661 UT. The OT unfiltered magnitude is 15.8m (limit 19.7m).

The OT is seen in 4 images. There is no minor planet at this place.

We have reference image without OT on 2011-09-22.57483 UT with unfiltered magnitude limit 20.0m.

There is faint SDSS star J214254.30+153642.2 with r_mag ~ 22.6 .

Spectral and photometric observations are required.

The discovery and reference images are available at: http://master.sai.msu.ru/static/OT/214254.34153642.8.png

List of Optical Transients discovered by MASTER

MASTER Global Robotic Net