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MASTER: OT in Andromeda direction

ATel #12307; D. Kobtsev, V. Lipunov, E. Gorbovskoy, V. Kornilov, P. Balanutsa, N. Tiurina, A. Kuznetsov, V. Vladimirov, V. Yurkov, A. Gabovich (Lomonosov MSU)
on 18 Dec 2018; 11:45 UT
Credential Certification: Nataly Tyurina (tiurina@sai.msu.ru)

Subjects: Optical, Cataclysmic Variable, Nova, Transient, Variables

Referred to by ATel #: 12308, 12349, 14703

MASTER OT J003944.84+403535.5 discovery - possible Nova in Andromeda

MASTER-Tavrida auto-detection system discovered OT source at (RA, Dec) = 00h 39m 44.84s +40d 35m 35.5s on 2018-12-17.65974 UT.
The OT unfiltered magnitude is 18.4m (limit 18.5m).
The OT is seen in 5 images. There is no minor planet at this place.
We have reference image without OT on 2015-08-19.74547 UT with unfiltered magnitude limit 20.0m.
MASTER-Tunka confirm it on 2018-12-18.42499 UT with m_OT=16.2
Spectral observations are required.

The discovery and reference images are available at:

http://master.sai.msu.ru/static/OT/MASTEROTJ003944.84+403535.5.jpg

MASTER Global Robotic Net