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[vsnet-obs 24099] New Takamizawa variable (TmzV594)

New Takamizawa variable (TmzV594)

   Kesao Takamizawa (Nagano, Japan) reports the discovery of a new variable
star (TmzV594).

TmzV594
= GSC4275.2101 220227.63 +661246.9 (2000.0) 11.66 1
= USNO1500.08777208 220227.679 +661247.04 (2000.0) 11.5 15.1
= IRAS22011+6558 220108.6 +655815 (1950.0)
    F12=2.51  F25=0.91  F60=0.44L F100=5.75L
    VAR= 7 LRS=-1
 possibly 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
= 220227.9 +661246 (2000.0) IRAS22011+6558 2.424 0.922 0.425L 5.939L 7%
= 220227.9 +661246 (2000.0) SSC22011+6558 2.424 0.922 0.425L 5.939L
= 220232.7 +661301 (2000.0) DO40652

  Takamizawa's comment:

  The star may be a semiregular variable with a range of 11.4-12.5p.

object         YYMMDD(UT)   mag  code
TmzV594        970827.540  120p  Tmz.VSOLJ
TmzV594        971218.437  121p  Tmz.VSOLJ
TmzV594        980823.563  115p  Tmz.VSOLJ
TmzV594        980916.530  118p  Tmz.VSOLJ
TmzV594        981107.440  114p  Tmz.VSOLJ
TmzV594        990709.574  123p  Tmz.VSOLJ
TmzV594        990807.594  125p  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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