[vsnet-alert 21489] DDE 51: new SU UMa type dwarf nova

[Denis Denisenko]

Following [vsnet-alert 21475], this dwarf nova in Lacerta has
brightened to full maximum:

DDE 51
  20170922.0862  <190CV   ART
  20170928.1251  16.52CV  ART  Outburst!
  20170929.9110  15.69CV  ART  Superoutburst!

Short run by Oleg Milantiev (Vedrus observatory, Krasnodar krai,
Russia) with the 0.20-m f/10 Maksutov telescope on Sep. 30th
(18:17-19:33 UT) has shown a well developed superhump with an
amplitude of about 0.3m in R filter (15.1-15.4m). Longer time series
are needed to determine the superhump period.

Denis Denisenko