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MASTER-IAC: QSO flare

ATel #11096; P. Balanutsa, V. Lipunov (Lomonosov MSU) , R. Rebolo, M. Serra-Ricart (IAC), E. Gorbovskoy, V. Kornilov, N. Tiurina, A. Kuznetsov, D. Vlasenko, V. Vladimirov, V. Senik, D. Zimnukhov, V. Chazov, O. Gress, V. humkov, T. Pogroheva, A. Gabovich (Lomonosov MSU)
on 27 Dec 2017; 11:22 UT
Credential Certification: Nataly Tyurina (tiurina@sai.msu.ru)

Subjects: Optical, AGN, Quasar, Transient, Variables

MASTER OT J143130.76+593939.7 discovery - QSO flare

MASTER-IAC auto-detection system ( Lipunov et al., "MASTER Global Robotic Net", Advances in Astronomy, 2010, 30L )
discovered OT source at (RA, Dec) = 14h 31m 30.76s +59d 39m 39.7s on 2017-12-27.21784 UT.
The OT unfiltered magnitude is 16.8m (limit 18.9m).
The OT is seen in 3 images. There is no minor planet at this place.
We have reference images without OT on 2017-10-08 02:01:47UT with mlim=18.4mag (MASTER-Kislovodsk), on 2016-05-07.11008 UT with 20.4mag unfiltered magnitude limit (MASTER-IAC).
Spectral observations are required.
The discovery and reference images are available at:
http://master.sai.msu.ru/static/OT/143130.76593939.7.png

List of Optical Transients discovered by MASTER

MASTER Global Robotic Net