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Bright PSN in NGC 4080 discovered by MASTER

ATel #6634; O. Gress (Irkutsk State University), D. Denisenko, V. Lipunov, E. Gorbovskoy, N. Tiurina, P. Balanutsa, V. Kornilov, N. Shatskiy, V. Chazov, A. Kuznetsov, E. Popova, V. Vladimirov (Lomonosov Moscow State University, SAI), K. Ivanov, S. Yazev, N. Budnev, E. Konstantinov, O. Chuvalaev, V. Poleshchuk (Irkutsk State University), V. Krushinsky, I. Zalozhnih, A. Popov, A. Bourdanov (Ural Federal University), A. Tlatov, D. Dormidontov, V. Senik, A. Parkhomenko (Kislovodsk Solar Station of Pulkovo Observatory), V. Yurkov, A. Gabovich, Y. Sergienko, E. Sinyakov (Blagoveshchensk Educational University), V. Shumkov, S. Shurpakov (MASTER team members)
on 28 Oct 2014; 22:04 UT
Credential Certification: Nataly Tyurina (tiurina@sai.msu.ru)

Subjects: Optical, Supernovae, Transient

Referred to by ATel #: 6639, 6640, 6641, 6712, 6719, 6755, 7351

MASTER OT J120451.50+265946.6 - possible supernova in NGC 4080

MASTER-Tunka auto-detection system discovered OT source at (RA, Dec) = 12h 04m 51.50s +26d 59m 46.6s on 2014-10-28.87454 UT. The OT unfiltered magnitude is 13.9m (limit 18.1m). The OT is seen in 7 images. There is no minor planet at this place. We have reference image without OT on 2011-04-21.67477 UT with unfiltered magnitude limit 20.2m.

The OT is located 4" west and 13" north of the center of NGC 4080 galaxy. Spectral confirmation is required. We note that the solar elongation during MASTER-Tunka observations was 51 deg. The discovery and reference images are available at: http://master.sai.msu.ru/static/OT/120451.50265946.6.png

List of Optical Transients discovered by MASTER

Global MASTER Robotic Net