MASTER: B2 1420+32 QSO 2.9m flare

ATel #12201; A. Chasovnikov, V. Lipunov (Lomonosov MSU), D. Buckley (SAAO), V. Kornilov, E. Gorbovskoy, N. Tiurina, A. Kuznetsov, V. Vladimirov, P. Balanutsa, V. Chazov, D. Zimnukhov, D. Vlasenko (Lomonosov Moscow State University, SAI), O. Gress, N. Budnev (API ISU), A. Gabovich (BSPU), V. Shumkov, T. Pogrosheva, R. Rebolo Lopez, M. Serra-Ricart (IAC), R. Podesta, F. Podesta, C. Francile (OAFA), H. Levato (San Juan National University, Argentina), A. Tlatov, V. Senik (KSS, Pulkovo observatory)
on 10 Nov 2018; 22:11 UT
Credential Certification: Nataly Tyurina (tiurina@sai.msu.ru)

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MASTER OT J142230.43+322310.5 - B2 1420+32 optical flare with amplitude more then 2.9m

MASTER-Kislovodsk auto-detection system ( Lipunov et al., "MASTER Global Robotic Net", Advances in Astronomy, 2010, 30L )
discovered OT source at (RA, Dec) = 14h 22m 30.43s +32d 23m 10.5s on 2018-11-09 02:27:40.901UT.
The OT unfiltered magnitude is m_OT=17.0
. There is unfiltered m_OT=15.9 on 2018-10-31 15:13:32.484UT in MASTER-Kislovodsk database
There is GALEX source in 0.384" , also QSO in VIZIER database (Schneider et al, 2010, Veron et al. 2010, etc).

There are m_OT=18.8 on 2017-11-13 02:33:18.154UT, m_OT=18.6 on 2018-09-20 17:34:52.253UT, m_OT=16.5 on 2018-01-16 21:52:23.587UT (MASTER-Kislovodsk database), so current outburst amplitude is more then 2.9m (in one photometry system).
Previous QSO flare was also detected in 2017y. by ASAS (ATEL #11110 Stanek et al.)

The discovery and reference images are available at: http://master.sai.msu.ru/static/OT/MASTEROTJ142230.43+322310.5.jpg

MASTER Global Robotic Net