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[vsnet-newvar 285] New Takamizawa variable (TmzV729)

New Takamizawa variable (TmzV729)

   Kesao Takamizawa (Nagano, Japan) reports the discovery of a new variable
star (TmzV729).

TmzV729
= GSC3971.296 213958.28 +543859.8 (2000.0) 10.87 1
= USNO1425.12292576 213958.298 +543859.82 (2000.0) 11.1 14.2
= IRAS21383+5425 213818.6 +542518 (1950.0)
    F12=1.32  F25=0.48  F60=2.09L F100=20.89L
    VAR=14 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
= 213958.2 +543856 (2000.0) IRAS21383+5425 1.344 0.503 2.169L 21.610L 14%
= 213958.2 +543856 (2000.0) SSC21383+5425 1.344 0.503 2.169L 21.610L
= 213958.2 +543859 (2000.0) 1157 1.60 TYC2-3971.296.1 (11.74 0.13) (13.62 0.34)

  Takamizawa's comment:

  The star may be a semiregular variable with a range of 11.2-12.3p.

object         YYYYMMDD(UT)   mag  code
TmzV729        19940903.567  113p  Tmz.VSOLJ
TmzV729        19941127.492  117p  Tmz.VSOLJ
TmzV729        19951212.460  119p  Tmz.VSOLJ
TmzV729        19970824.567  117p  Tmz.VSOLJ
TmzV729        19970827.549  116p  Tmz.VSOLJ
TmzV729        19971218.393  112p  Tmz.VSOLJ
TmzV729        19980823.571  115p  Tmz.VSOLJ
TmzV729        19980916.541  116p  Tmz.VSOLJ
TmzV729        19990709.583  123p  Tmz.VSOLJ
TmzV729        19990807.602  115p  Tmz.VSOLJ
TmzV729        19991226.386  119p  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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