[vsnet-alert 2651] GK Per probably rising to outburst

[Taichi Kato <tkato>]

GK Per probably rising to outburst

   As predicted by Tsutomu Watanabe (vsnet-future 2,
http://vsnet.kusastro.kyoto-u.ac.jp/vsnet/Mail/vsnet-future/msg00002.html),
and reported by him (vsnet-alert 2650,
http://vsnet.kusastro.kyoto-u.ac.jp/vsnet/Mail/vsnet-alert/msg02650.html),
the old nova, and at the same time the intermediate polar, GK Per is
probably rising to minor outburst.

  YYMMDD(UT)   mag  observer
  990211.816   131  (E. Muyllaert)
  990212.558   129  (T. Watanabe)
  990212.774   129  (G. Comello)
  990212.800   133  (A. Diepvens)
  990212.819   129  (R. J. Johanns)
  990213.397   129  (T. Watanabe)
  990213.444   131  (N. Makiguchi)
  990213.512   130  (H. Itoh)
  990213.531   132  (M. Nakatani)
  990213.794   129  (R. J. Bouma)
  990213.822   130  (E. Muyllaert)
  990213.860   131  (G. Comello)
  990213.908   134  (H. McGee)
  990214.488   131  (H. Maehara)
  990214.573   129  (T. Watanabe)
  990215.167   131  (R. J. Modic)
  990215.580   131  (T. Watanabe)
  990216.740   131  (H-G. Lindberg)
  990216.926   131  (G. Poyner)
  990217.519   130  (T. Watanabe)
  990217.839   132  (G. Comello)
  990219.508   130  (S. Takahashi)
  990220.528   126  (M. Nakatani)
  990220.562   127  (T. Watanabe)

  The latest minor outburst of GK Per was reported just three years ago,
starting in late February, 1996 and ending in April.  For more details
of this outburst and implications, see

  http://vsnet.kusastro.kyoto-u.ac.jp/vsnet/Novae/gkper.html

  Observations in all wavelengths, esp. X-rays and coordinated optical
observations following the spin period are strongly encouraged.

Regards,
Taichi Kato

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