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[vsnet-obs 21443] New Takamizawa variable (TmzV409)

New Takamizawa variable (TmzV409)

   Kesao Takamizawa (Nagano, Japan) reports the discovery of a new variable
star (TmzV409).

TmzV409
= GSC6001.1232 082214.85 -180121.6 (2000.0) 13.38 0
= GSC6001.1232 082214.87 -180121.2 (2000.0) 13.28 0
= USNO0675.06361087 082214.886 -180121.42 (2000.0) 12.3 14.2
= IRAS08199-1751 081958.0 -175117 (1950.0)
    F12=0.63  F25=0.25L F60=0.40L F100=1.00L
    VAR=-1 LRS=-1
 possibly I: oxygen-rich non-variable star without circumstellar shell
 or II: variable star with 'young' O-rich circumstellar shell
 or VII: variable star with more evolved C-rich circumstellar shell
 or VIa: non-variable star with relatively cold dust at large
      distance, may be carbon-rich
= 082214.0 -180055 (2000.0) IRAS08199-1751 0.621 0.250L 0.400L 1.000L -1%
= 082214.0 -180055 (2000.0) SSC08199-1751 0.621 0.250L 0.400L 1.000L

  Takamizawa's comment:

  The star may be a semiregular variable with a range of 12.1-14.7p.

object         YYMMDD(UT)   mag  code
TmzV409        941111.717  137p  Tmz.VSOLJ
TmzV409        950220.535  121p  Tmz.VSOLJ
TmzV409        951222.713  134p  Tmz.VSOLJ
TmzV409        960211.531  <144p  Tmz.VSOLJ
TmzV409        961208.655  147p  Tmz.VSOLJ
TmzV409        970227.504  129p  Tmz.VSOLJ
TmzV409        971013.813  135p  Tmz.VSOLJ
TmzV409        971203.725  126p  Tmz.VSOLJ
TmzV409        971231.672  133p  Tmz.VSOLJ
TmzV409        981115.792  139p  Tmz.VSOLJ
TmzV409        990208.547  140p  Tmz.VSOLJ
TmzV409        990404.460  128p  Tmz.VSOLJ

Observer's code:
  Tmz: K.Takamizawa (Saku-machi,Nagano,Japan)
       Inst.: 10cmR F4 twin patrol cameras  T-Max400 120
       Comparison stars mag.:GSC

Relayed from Kesao Takamizawa <GHA07243@nifty.ne.jp>

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