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[vsnet-alert 7438] PU Vul sudden fading

PU Vul sudden fading

  Several observers have independently noted that the symbiotic nova PU Vul
has suddenly faded to 12.2 mag.  Since PU Vul is suspected to be a long-period
eclipsing system, follow-up multicolor photometry and spectroscopy are
encouraged.  If the hot source is eclipsed, a sharp drop in the U-band
is expected.

  YYYYMMDD(UT)   mag  observer
  20020529.938   117  (Georg Comello)
  20020529.975   117  (Eddy Muyllaert)
  20020531.050   115  (Gary Poyner)
  20020531.953   120  (Wolfgang Kriebel)
  20020601.931   118  (Maciej Reszelski)
  20020601.990   117  (Eddy Muyllaert)
  20020603.939   118  (Maciej Reszelski)
  20020604.969   118  (Maciej Reszelski)
  20020605.959   118  (Maciej Reszelski)
  20020607.983   117  (Eddy Muyllaert)
  20020616.903   120  (Wolfgang Kriebel)
  20020617.968   118  (Maciej Reszelski)
  20020617.969   120  (Pavol A. Dubovsky)
  20020618.985   117  (Eddy Muyllaert)
  20020620.980   120  (Pavol A. Dubovsky)
  20020621.951   116  (Georg Comello)
  20020621.972   121  (Jose Ripero)
  20020622.974   120  (Pavol A. Dubovsky)
  20020624.058   116  (Gary Poyner)
  20020624.962   117  (Eddy Muyllaert)
  20020626.053   116  (Gary Poyner)
  20020628.062   116  (Gary Poyner)
  20020629.960   119  (Wolfgang Kriebel)
  20020629.982   118  (Eddy Muyllaert)
  20020701.967   120  (Pavol A. Dubovsky)
  20020701.970   122  (Jose Ripero)
  20020704.878   120  (Wolfgang Kriebel)
  20020707.011   122  (Jose Ripero)
  20020708.939   122  (Emile Schweitzer)
  20020710.881   120  (Pavol A. Dubovsky)
  20020710.956   122  (Jose Ripero)
  20020710.966   117  (Eddy Muyllaert)
  20020711.032   116  (Gary Poyner)
  20020711.690   122  (Mitutaka Hiraga)
  20020711.925   122  (Jose Ripero)
  20020711.973   117  (Eddy Muyllaert)
  20020712.076   115  (Gary Poyner)
  20020713.630   121  (Mitutaka Hiraga)
  20020714.936   122  (Jose Ripero)

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