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MASTER: dwarf nova outburst

ATel #9218; E. Popova, O. Gress, V. Lipunov (Lomonosov MSU), A. Gabovich, V. Yurkov, Yu. Sergienko (Blagoveschensk State Pedagogical University), N. Budnev, K. Ivanov (Applied physics institute, ISU), E. Gorbovskoy, N. Tiurina, P. Balanutsa, A. Kuznetsov, V. Kornilov(Lomonosov Moscow State University, SAI)
on 7 Jul 2016; 13:40 UT
Credential Certification: Nataly Tyurina (tiurina@sai.msu.ru)

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

MASTER OT J050002.2+740407.4 discovery - bright possible dwarf nova outburst, Ampl>5.1

MASTER-Amur auto-detection system ( Lipunov et al., "MASTER Global Robotic Net", Advances in Astronomy, 2010, 349171 ) discovered OT source at (RA, Dec) = 05h 00m 02.2s +74d 04m 07.4s on 2016-07-06 16:47:02.264UT with unfiltered(0.2B2+0.8R2 calibrated to USNO B1) m_OT=16.9

The OT is seen on 6 images.There is no minor planet at this place.

We have reference images without OT on 2016-05-26 16:24:03 with m_lim=18.5 (MASTER-Amur), 2016-04-29 18:24:32 with m_lim=19.7 (MASTER-Tunka)

Spectral observations are required. The discovery and refernce images http://observ.pereplet.ru/images/MASTEROTJ050002.2+740407.4.jpg

MASTER Global Robotic Net