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Possible Nova in M31

ATel #9966; E. Popova, V. Lipunov, E. Gorbovskoy, N. Tiurina, P. Balanutsa, A. Kuznetsov, V. Kornilov, V. Vladimirov, D. Kuvshinov, V. Chazov, A. Krylov, I. Gorbunov (Lomonosov Moscow State University, SAI), V. Senik, D. Dormidontov, A. Parkhomenko, Kislovodsk solar station of the Pulkovo observatory RAS), K. Ivanov, S. Yazev, N. Budnev, O. Gress (Irkutsk State University), V. Shumkov, T. Pogrosheva , R. Podesta (OAFA), H. Levato (ICATE), A. Tlatov (KSS, Pulkovo observatory), C. Lopez, F. Podesta (OAFA), C. Saffe (ICATE), A. Gabovich, V. Yurkov (BSPU),
on 17 Jan 2017; 12:14 UT
Distributed as an Instant Email Notice Novae
Credential Certification: Nataly Tyurina (tiurina@sai.msu.ru)

Subjects: Optical, Nova, Transient, Variables

MASTER OT JMASTER004025.31+405952.0 - Possible Nova in M31

MASTER-Kislovodsk auto-detection system discovered OT source at (RA, Dec) = 00h 40m 25.31s +40d 59m 52.0s on 2017-01-14.77846 UT. The OT unfiltered magnitude is 17.5m (limit 19.1m).

The OT is seen in 9 images in Kislovodsk and 6 in Tunka. There is no minor planet at this place.

We have reference image without OT on 2016-12-21.74273 UT with unfiltered magnitude limit 21.3m.

Spectral observations are required.

The discovery and reference images are available at:
http://master.sai.msu.ru/static/004025.31405952.0.png

List of Optical Transients discovered by MASTER

M A S T E R GLOBAL Robotic Net