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MASTER: OT in M31 direction

ATel #11755; P. Balanutsa, V. Lipunov, V. Kornilov, E. Gorbovskoy, N. Tiurina, I. Gorbunov, V. Senik, V. Chazov, A. Kuznetsov, V. Vladimirov, D. Vlasenko, D. Zimnukhov, O. Gress (Moscow State University, SAI) A. Tlatov (Kislovodsk solar station of Pulkovo observatory), A. Gabovich (Blagoveshchensk Educational University) V. Shumkov, T. Pogrosheva
on 21 Jun 2018; 18:08 UT
Credential Certification: Nataly Tyurina (tiurina@sai.msu.ru)

Subjects: Optical, Request for Observations, Cataclysmic Variable, Nova, Transient, Variables

Referred to by ATel #: 14703

MASTER OT J004355.89+413209.9 discovery - OT in M31 direction

MASTER-Kislovodsk auto-detection system ( Lipunov et al., "MASTER Global Robotic Net", Advances in Astronomy, 2010, 30L )
discovered OT source at (RA, Dec) = 00h 43m 55.89s +41d 32m 09.9s on 2018-06-20.98169 UT.
The OT unfiltered magnitude is 19.0m (limit 19.6m).
There are 5 images with OT.
There is no minor planet at this place.
We have reference image without OT on 2018-05-04 00:18:30 UT with unfiltered magnitude limit 19.0m .
There was AT2017ixs (RA,Dec=00:43:56.00+41:32:11.30) at 2017-12-15 17:45:58 UT in history.
Spectral observations are required.
The discovery and reference images are available at:
http://master.sai.msu.ru/static/OT/004355.89413209.9.png

MASTER Global Robotic Net