[vsnet-alert 7221] First-ever outburst of 1RXP J113123+4322.5

[Taichi Kato <tkato@kusastro.kyoto-u.ac.jp>]

First-ever outburst of 1RXP J113123+4322.5

  As reported by Pavol A. Dubovsky, the ROSAT-selected cataclysmic variable
1RXP J113123+4322.5 is undergoing the first-ever secure outburst.
This observation confirms the dwarf nova-type nature of this object.
Since little is known about this new CV, time-resolved photometry is
most urgently requested.

  The object is located at:
  11h 31m 23s, +43o 22' 37" (J2000.0)

  Accurate astrometry based on outburst CCD images is also highly desired.

  YYYYMMDD(UT)   mag  observer
  20011114.190  <145  (Timo Kinnunen)
  20011215.000  <145  (Timo Kinnunen)
  20011221.161  <147  (Pavol A. Dubovsky)
  20020110.356  <142  (Mike Simonsen)
  20020112.364  <142  (Mike Simonsen)
  20020119.000  <144  (Pavol A. Dubovsky)
  20020122.347  <142  (Mike Simonsen)
  20020126.374  <142  (Mike Simonsen)
  20020203.926  <146  (Pavol A. Dubovsky)
  20020204.865  <146  (Pavol A. Dubovsky)
  20020205.885  <146  (Pavol A. Dubovsky)
  20020208.301  <146  (Mike Simonsen)
  20020215.069  <146  (Pavol A. Dubovsky)
  20020216.014  <146  (Pavol A. Dubovsky)
  20020216.901  <148  (Pavol A. Dubovsky)
  20020218.269  <146  (Mike Simonsen)
  20020223.318  <146  (Mike Simonsen)
  20020305.988   135  (Pavol A. Dubovsky)

Regards,
Taichi Kato
VSNET Collaboration team

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