[vsnet-alert 13635] DDE 22 outburst continues

Denis Denisenko d.v.denisenko at gmail.com
Fri Sep 2 07:34:42 JST 2011

DDE 22 keeps growing! I have measured CR=16.17 from the images
obtained remotely at the Ka-Dar observatory's TAU station (observers
S. Korotkiy, V. Gerke) at 20:18-20:24 UT on Sep. 01.

  YYYYMMDD(UT)   mag  observer
  20110829.745  184C  TAU station
  20110830.834  176C  TAU station
  20110901.089  167CR Ian Miller
  20110901.849  162C  TAU station

This is the first time I see the variable brighter than the nearby 16.6R star!

Looks like this star is of UGZ type, so the orbital period should be
rather long and harder to measure than for UGSU stars. Still the time
series are worth trying tonight and tomorrow!

Denis in Moscow

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