Аннотация:MASTER OT J144402.57-840648.2 discovery - poss. dwarf nova outburst with ampl>5m
MASTER-SAAO auto-detection system ( Lipunov et al., "MASTER Global Robotic Net", Advances in Astronomy, 2010, 30L )
discovered OT source at (RA, Dec) = 14h 44m 02.57s -84d 06m 48.2s on 2019-02-19.06146 UT.
The OT unfiltered magnitude is 17.0m (mlim=18.0).
The OT is seen in 8 images (2019-02-19 01:28:30.675-02:31:33.374UT). There is no minor planet at this place.
We have reference image on 2016-12-07.99971 UT with unfiltered mlim= 21.0m.
There is no any sources i VIZIER database, it means 22m POSS limit and more then 5mag of current outburst amplitude.
Spectral observations are required.
The discovery and reference images are available at:
http://master.sai.msu.ru/static/OT/MASTEROTJ144402.57-840648.2.jpg