MASTER: outburst detection with ampl>6.5m
ATel #13724; T. Pogrosheva, V. Lipunov (Lomonosov MSU), D. A. H. Buckley (SAAO), K. Zhirkov, V. Kornilov, O. Gress, E. Gorbovskoy, A. Chasovnikov, N. Tiurina, P. Balanutsa, I. Gorbunov, A. Kuznetsov, V. Vladimirov, D. Vlasenko, F. Balakin, D. Zimnukhov, D. Cheryasov, V. Senik, E. Minkina, V. Grinshpun, V. Shumkov, V. Topolev, A. Pozdnyakov (Lomonosov MSU), N. M. Budnev(ISU, API), V. Yurkov, A. Gabovich, Yu. Sergienko(Blagoveschensk ESU), R. Rebolo, M. Serra-Riscart, (IAC), R. Podesta, F. Podesta, C. Francile (OAFA), H. Levato (SJNU), A. Tlatov, D. Dormidontov(Kislovodsk Solar Station of the Pulkovo Observatory)
on 9 May 2020; 21:10 UT
Credential Certification: Nataly Tyurina (tiurina@sai.msu.ru)
Subjects: Optical, Transient, Variables
MASTER OT J160826.67-700619.3 outburst discovery - preliminary dwarf nova outburst with ampl>6.5m
2020jiy
MASTER-SAAO auto-detection system ( Lipunov et al., "MASTER Global Robotic Net", Advances in Astronomy, 2010, 30L )
discovered OT source at (RA, Dec) = 16h 08m 26.67s -70d 06m 19.3s on 2020-05-08.95341 UT.
The OT unfiltered magnitude is 15.5m.
The OT is seen in 8 images. There is no minor planet at this place.
We have reference image on 2020-03-31.05421 UT with unfiltered mlim= 20.0m.
on 2nd of May 2020 at 22:36 with mlim=20.0
There is USNO-B1 star with B2=20.06,R2=19.35 (and no B1,R1, that means 22m POSSS limits in history and more then 6.5m of current outburst amplitude
Spectral observations are required.
The discovery and reference images are available at:
http://master.sai.msu.ru/static/OT/160826.67-700619.3.png
MASTER Global Robotic Net
