[vsnet-alert 11802] SU UMa superhump observation

[Taichi Kato]

SU UMa superhump observation

   Pavol A. Dubovsky and Seikei Astronomy and Meteorology Club have reported
observations of the current superoutburst of SU UMa.
A likely stage A-B evolution (Psh transition from a longer to shorter period)
was recorded before Jan. 23.  The mean superhump period after this
transition has been 0.079053(8) d.

  Recent observations:

  YYYYMMDD(UT)   mag  observer
  20100116.749  <131  (Hiroyuki Maehara)
  20100117.742   147  (Gary Poyner)
  20100120.833   114  (Jose Ripero)
  20100120.969   113  (Jose Ripero)
  20100122.608   113  (Hiroyuki Maehara)
  20100123.019  112C  (Etienne Morelle)
  20100123.581  11.89C  (Seikei Astronomy and Meteorology Club)
  20100123.660   114  (Hiroyuki Maehara)
  20100124.625   116  (Hiroyuki Maehara)
  20100126.621   118  (Hiroyuki Maehara)