MASTER OT J233317.85-674248.4 outburst
ATel #13841; E. Minkina, V. Lipunov, E. Gorbovskoy, V. Kornilov, I. Gorbunov, N. Tiurina, O. Gress, P. Balanutsa, A. Kuznetsov, F. Balakin, V. Vladimirov, K. Zhirkov, D. Zimnukhov, A. Chasovnikov, V. Senik, D. Kuvshinov, T. Pogrosheva, D. Vlasenko, D. Cheryasov (Lomonosov Moscow State University, SAI, Physics Department), R. Podesta, F. Podesta, C. Francile (OAFA), H. Levato (ICATE), R. Rebolo, M. Serra (IAC), D. Buckley (SAAO), N. Budnev (ISU, API), A. Tlatov (KSS of the Pulkovo Observatory), A. Gabovich, Yu. Sergienko, V. Yurkov(BSPU), V. Shumkov
on 30 Jun 2020; 13:19 UT
Credential Certification: Nataly Tyurina (tiurina@sai.msu.ru)
Subjects: Optical, Request for Observations, Cataclysmic Variable, Transient, Variables
Referred to by ATel #: 13846
MASTER OT J233317.85-674248.4 detection - outburst with ampl>3m
AT2020nut
During Fermi GRB 200629A / trigger 615127794 (BALROG localization by Biltzinger et al. GCN #28039, Fermi GCN #28040)
inspection (Lipunov et al. GCN #28041 , see cover map )
MASTER-SAAO auto-detection system ( Lipunov et al., "MASTER Global Robotic Net", Advances in Astronomy, 2010, 30L )
discovered OT source (preliminary not connected with GRB) at
(RA, Dec) = 23h 33m 17.85s -67d 42m 48.4s on 2020-06-29.97618 UT.
The OT unfiltered magnitude is 16.8m (mlim=19.3).
The OT is seen in 4 images. There is no minor planet at this place.
We have reference image on 2018-08-08.86821 UT with unfiltered mlim=19.8m. Preliminary claseification is dwarf nova (MASTER-OAFA reobserved it on 2020-06-30 01:11:08UT with m_OT=17.5).
Spectral observations are required.
The discovery and reference images are available at:
http://master.sai.msu.ru/static/OT/233317.85-674248.4.png
MASTER Global Robotic Net
