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[vsnet-alert 1382] Outburst of AS 289

Outburst of AS 289

  K. Takamizawa (Nagano, Japan) reports his discovery of an apparently
erupting object his patrol films.  The object (TmzV17) is located at

  18h 09m 31s.6  (1950.0)
  -11o 40' 53"

  The star has been subsequently identified as the known stmbiotic star
AS 289 = SS 143 (no variable star designation up to now).

  Takamizawa's record (below) clearly demonstrates that this object
experienced a major symbiotic outburst in 1995 and 1996.  The outburst
consisted of two distinct peaks, separated by a temporary minimum around
1996 April, which may be an eclipse as observed during outbursts of V1413
Aql (= AS 338), FG Ser (= AS 296) etc.  Being still well above quiescence,
follow-up observations (esp. spectroscopy) are strongly urged.

Photographic magnitude estimates by VSOLJ members

  YYMMDD(UT)   mag  code
  940512.682  149p  Tmz.VSOLJ
  940603.697  147p  Tmz.VSOLJ
  940703.546  143p  Tmz.VSOLJ
  940712.619  142p  Tmz.VSOLJ
  940810.541  147p  Tmz.VSOLJ
  940925.489  148p  Tmz.VSOLJ
  941023.392  140p  Tmz.VSOLJ
  950207.819  148p  Tmz.VSOLJ
  950306.773  148p  Tmz.VSOLJ
  950311.784  149p  Tmz.VSOLJ
  950401.744  148p  Tmz.VSOLJ
  950407.743  148p  Tmz.VSOLJ
  950423.697  147p  Tmz.VSOLJ
  950426.742  137p  Tmz.VSOLJ
  950522.626  131p  Tmz.VSOLJ
  950601.643  126p  Tmz.VSOLJ
  950619.547  124p  Tmz.VSOLJ
  950723.583  128p  Tmz.VSOLJ
  950804.581  129p  Tmz.VSOLJ
  950814.450  121p  Tmz.VSOLJ
  950820.562  119p  Tmz.VSOLJ
  950827.558  120p  Tmz.VSOLJ
  950912.445  121p  Tmz.VSOLJ
  950921.481  118p  Tmz.VSOLJ
  951012.412  121p  Tmz.VSOLJ
  951025.405  122p  Tmz.VSOLJ
  960127.840  130p  Tmz.VSOLJ
  960211.844  128p  Tmz.VSOLJ
  960219.814  126p  Tmz.VSOLJ
  960318.760  140p  Tmz.VSOLJ
  960412.699  139p  Tmz.VSOLJ
  960423.740  138p  Tmz.VSOLJ
  960525.691  126p  Tmz.VSOLJ
  960619.624  121p  Tmz.VSOLJ
  960712.601  119p  Tmz.VSOLJ
  960804.535  117p  Tmz.VSOLJ
  960815.483  119p  Tmz.VSOLJ
  960902.428  118p  Tmz.VSOLJ
  961016.399  120p  Tmz.VSOLJ
  961030.389  118p  Tmz.VSOLJ
  970214.842  126p  Tmz.VSOLJ
  970307.813  127p  Tmz.VSOLJ
  970509.690  128p  Tmz.VSOLJ
  970528.597  129p  Tmz.VSOLJ
  970606.701  130p  Tmz.VSOLJ
  970613.655  135p  Tmz.VSOLJ
  970629.628  132p  Tmz.VSOLJ
  970703.644  129p  Tmz.VSOLJ
  970706.610  131p  Tmz.VSOLJ
  970714.678  131p  Tmz.VSOLJ
  970724.519  131p  Tmz.VSOLJ
  970822.485  132p  Tmz.VSOLJ
  970928.433  131p  Tmz.VSOLJ
  971019.414  130p  Tmz.VSOLJ
  971119.388  131p  Tmz.VSOLJ

Regards,
Taichi Kato

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