[vsnet-obs 24135] New Takamizawa variable (TmzV604)

[Taichi Kato <tkato>]

New Takamizawa variable (TmzV604)

   Kesao Takamizawa (Nagano, Japan) reports the discovery of a new variable
star (TmzV604).

TmzV604
= GSC4277.495 223935.42 +660247.5 (2000.0) 13.94 1
= USNO1500.09309984 223935.392 +660247.37 (2000.0) 12.8 16.8
= IRAS22378+6547 223753.6 +654711 (1950.0)
    F12=1.10  F25=0.48  F60=0.52L F100=20.89L
    VAR= 1 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
= 223935.3 +660250 (2000.0) IRAS22378+6547 1.125 0.501 0.509L 20.170L 1%
= 223935.3 +660250 (2000.0) SSC22378+6547 1.125 0.501 0.509L 20.170L

  Takamizawa's comment:

  The star may be a semiregular variable with a range of 13.2-13.7p.

object         YYMMDD(UT)   mag  code
TmzV604        970827.540  137p  Tmz.VSOLJ
TmzV604        971218.437  136p  Tmz.VSOLJ
TmzV604        980823.563  135p  Tmz.VSOLJ
TmzV604        980916.530  134p  Tmz.VSOLJ
TmzV604        981107.440  132p  Tmz.VSOLJ
TmzV604        990709.574  133p  Tmz.VSOLJ
TmzV604        990807.594  136p  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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