[vsnet-alert 25636] MASTER OT J143550.11+592134.8 bright outburst

Fri Apr 2 22:25:00 JST 2021

This dwarf nova in Draco is currently in outburst, according to the
real-time ZTF Lasair light curve and data (Masci et al., 2019):
https://lasair.roe.ac.uk/object/ZTF18aaqlkdd/

MASTER OT J143550.11+592134.8
  20210329.4356  <198r   ZTF  last non-detection
  20210331.2623  14.95g  ZTF  Outburst!
  20210402.4684  14.80r  ZTF
  20210402.3198  14.48g  ZTF  Brightest

AAVSO VSX range: 15.2-<19.9 CR

The variable was originally discovered by MASTER in an outburst to 15.2m on
2013-11-30.44 UT, see ATel #5618. There was a bright two-weeks long
outburst in July 2018 in ZTF data peaking at 14.9m on 2018-07-07.226 UT,
see http://scan.sai.msu.ru/~denis/J1435+5921-ZTF-DR4-LC.gif and
http://scan.sai.msu.ru/~denis/J1435+5921-ZTF-LC-2018.gif

The current outburst is yet brighter - likely a superoutburst.
Time-resolved photometry is encouraged.

Denis Denisenko