MASTER: 2 OT
ATel #12634; T. Pogrosheva, V. Lipunov (Lomonosov MSU), R. Podesta, C. Lopez, C. Francile, F. Podesta (OAFA, SJNU), H. Levato (ICATE SJNU),E. Gorbovskoy, N. Tyurina, V. Kornilov, D. Vlasenko, V. Vladimirov, D. Zimnukhov, A. Kuznetsov, P. Balanutsa, V. Grinshpun, F. Balakin, A. Chasovnikov, V. Topolev, K. Zhirkov, A. Pozdnyakov, D. Kuvshinov (Lomonosov MSU), R. Rebolo, M. Serra (IAC), D. Buckley (SAAO), O. Gress, N. M. Budnev (API ISU), V. Yurkov, A. Gabovich, Yu. Sergienko, D. Kobcev (BSPU), A. Tlatov, V. Senik, D. Dormidontov (KSS of Pulkovo observatory)
on 6 Apr 2019; 16:16 UT
Credential Certification: Nataly Tyurina (tiurina@sai.msu.ru)
Subjects: Optical, Request for Observations, Cataclysmic Variable, Transient, Variables
MASTER OT J130701.04-550229.6 discovery - OT with ampl>4.1m
MASTER-OAFA auto-detection system ( Lipunov et al., "MASTER Global Robotic Net",Advances in Astronomy, 2010, 30L )
discovered OT source at (RA, Dec) = 13h 07m 01.04s -55d 02m 29.6s on 2019-03-29.27464 UT.
The OT unfiltered magnitude is 17.9m (mlim=18.7m).
The OT is seen at 6 images. There is no minor planet at this place.
2016-07-07 00:50:13 19.2
2016-07-08 02:14:55 mlim=19.2 (no OT)
2016-12-02 07:47:34 19.0
2019-03-29 06:24:07 17.9
2019-03-29 06:35:29 17.9
2019-04-02 03:35:39 18.8
We have reference image without OT on 2016-07-08.09369 UT with 19.1m unfiltered magnitude limit.
22m POSS limit gives ampl>4.1m of current flare/outburst.
Spectral observations/deep photometry are required.
The discovery and reference images are available at:
http://master.sai.msu.ru/static/OT/130701.04-550229.6.png
MASTER OT J073033.80-742437.6 discovery - OT with ampl>2.3m
MASTER-OAFA auto-detection system discovered OT source at (RA, Dec) = 07h 30m 33.80s -74d 24m 37.6s on 2019-04-04.07675 UT.
The OT unfiltered magnitude is 17.4m (mlim=19.1m).
The OT is seen in 6 images. There is no minor planet at this place.
We have reference image without OT on 2017-04-29.19222 UT with 19.7m magnitude limit, it gives ampl>2.4mag .
Spectral observations are required.
The discovery and reference images are available at:
http://master.sai.msu.ru/static/OT/073033.80-742437.6.png
List of Optical Transients discovered by MASTER
MASTER Global Robotic Net
