[vsnet-alert 24843] MASTER OT J004527.52+503213.8 outburst

[Denis Denisenko d.v.denisenko@gmail.com via vsnet-alert]

The brightest dwarf nova discovered by MASTER (12.5m unfiltered on
2013 Sep. 17.668 UT, ATel #5399) is in bright outburst on ZTF and
ASAS-SN images.

MASTER OT J004527.52+503213.8
  20201021.2778  <172g   ASAS-SN
  20201022.3253  21.1:g  ZTF  Last non-detection by ZTF
  20201022.8889  <14.3V  Eddy Muyllaert (via AAVSO)
  20201024.3066  13.26r  ZTF  Outburst!
  20201024.3417  13.04g  ZTF  Outburst!
  20201024.4326  13.00g  ASAS-SN
  20201024.4338  12.99g  ASAS-SN
  20201024.4351  13.00g  ASAS-SN

ZTF light curve (Masci et al., 2019):
https://lasair.roe.ac.uk/object/ZTF18abtyikp/
ASAS-SN light curve and data for last 20 days (Shappee et al.,
Kochanek et al.):
https://asas-sn.osu.edu/light_curves/59408ebf-2932-44c0-8164-f76430e53173

The discovery outburst in September-October 2013 was followed by the
rebrightening to 15m six days after fading to 18m. The superoutburst
itself lasted at least 12 days (2013 Sep. 17-29). The superhump period
was measured as 0.08115 d [vsnet-alert 16425], 0.080464 d [vsnet-alert
16433] and 0.07999 d [vsnet-alert 16463].

Time-resolved photometry is encouraged.

Discovery ATel with the links to DSS finder chart and images:
http://www.astronomerstelegram.org/?read=5399

Denis Denisenko