MASTER-OAFA: new OT with outburst ampl>4.2m
ATel #14321; V. Shumkov, V. Lipunov, V. Kornilov, E. Gorbovskoy, N. Tyurina, P. Balanutsa, A. Kuznetsov, F. Balakin, V. Vladimirov, D. Vlasenko, I. Gorbunov, D. Zimnukhov, V. Senik, A. Chasovnikov, V. Topolev, K. Zhirkov, A. Pozdnyakov, D. Kuvshinov, D. Cheryasov (Lomonosov MSU), R. Podesta, F. Podesta, C. Francile (OAFA), D. Buckley (SAAO), R. Rebolo, M. Serra-Ricart (IAC)A. Tlatov, D. Dormidontov (Kislovodsk Solar Station of the Pulkovo Observatory), A. Gabovich, V. Yurkov (Blagoveschensk Educational State University)
on 14 Jan 2021; 17:19 UT
Credential Certification: Nataly Tyurina (tiurina@sai.msu.ru)
Subjects: Optical, Request for Observations, Cataclysmic Variable, Transient, Variables
MASTER OT J065559.44-502253.6 discovery - OT with outburst ampl>4.2m (no sources inside 5" in VIZIER)
MASTER-OAFA auto-detection system ( Lipunov et al., "MASTER Global Robotic Net", Advances in Astronomy, 2010, 30L )
discovered OT source at (RA, Dec) = 06h 55m 59.44s -50d 22m 53.6s on 2021-01-13.16730 UT.
The OT unfiltered magnitude is 18.8m (mlim=19.2).
The OT is seen in 5 images. There is no minor planet at this place.
There are images at 2021-01-08 05:52:47UT with unfiltered mOT=17.8 (MASTER-OAFA), and at
2021-01-08 22:07:00UT with unfiltered mOT=17.9(MASTER-SAAO).
We have reference image on 2020-01-01.22485 UT with unfiltered 20.0m.
There is no any sources inside 5" in VIZIER database, it means 22m POSS limit in history and
more then 4.2m of current amplitude
Spectral observations are required.
The discovery and reference images are available at:
http://master.sai.msu.ru/static/OT/065559.44-502253.6.png
MASTER Global Robotic Net
