MASTER OT J012445.52-680429.7 - new OT with ampl more then 3.5m
ATel #15013; Ya. Kechin, K. Zhirkov, V. Lipunov, E. Gorbovskoy, P. Balanutsa, A. Kuznetsov, O. Gress, G. Antipov, D. Vlasenko, N. Tiurina, D. Zimnukhov, V. Senik, V. Topolev, A. Chasovnikov, E. Minkina, V. Grinshpun, D. Cheryasov (Lomonosov MSU), R. Rebolo, M. Serra(IAC), D. A. H. Buckley (SAAO), N. M. Budnev (ISU, API), R. Podesta, C. Lopez, F. Podesta, C. Francile (OAFA), A. Tlatov, D. Dormidontov (KSS, Pulkovo observatory), A. Gabovich, V. Yurkov (BSPU)
on 4 Nov 2021; 01:46 UT
Credential Certification: Nataly Tyurina (tiurina@sai.msu.ru)
Subjects: Optical, Request for Observations, Cataclysmic Variable, Transient, Variables
MASTER OT J012445.52-680429.7 discovery - new OT, ampl>3.5m (no any sources in VIZIER database)
MASTER-SAAO auto-detection system ( Lipunov et al., "MASTER Global Robotic Net", Advances in Astronomy, 2010, 30L )
discovered OT source at (RA, Dec) = 01h 24m 45.52s -68d 04m 29.7s on 2021-11-03.95104 UT.
The OT unfiltered magnitude is 18.5m (mlim=20.0).
The OT is seen in 4 images (2021-11-03 22:49:30/01:10:07UT) with the same magnitude. There is no minor planet at this place.
We have reference image at 2018-09-29.82959 UT with unfiltered mlim=20.8m, at 2021-09-02 02:38:45 eith mlim=19.2.
So as there is no any sources in VIZIER database, it means 22m POSS limit in history and >3.5m of current outburst amplitude.
Spectral observations are required.
The discovery and reference images are available at:
http://master.sai.msu.ru/static/OT/012445.52-680429.7.png
MASTER Global Robotic Net
