[vsnet-outburst 11010] GK Per outburst!

[Taichi Kato]

GK Per outburst!

  The rise appears to have been sudden!

  YYYYMMDD(UT)   mag  observer
  20100211.808   129  (Jose Ripero)
  20100213.800   130  (Jose Ripero)
  20100213.903  13.17V  (Miguel Rodriguez)
  20100220.478   132  (Kenji Hirosawa)
  20100221.501  <126  (Hiroyuki Maehara)
  20100221.844   131  (Gary Poyner)
  20100301.860   130  (Gary Poyner)
  20100304.842   131  (Gary Poyner)
  20100304.917  13.03V  (Erwin van Ballegoij)
  20100304.937  13.03V  (Erwin van Ballegoij)
  20100306.869  12.34V  (Erwin van Ballegoij)
  20100306.874   130  (Gary Poyner)

PS. The object is one of examples (to my knowledge) demonstrating
    the advantage of CCDs -- the rise can sometimes be too subtle
    for visual observations...