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[vsnet-newvar 288] New Takamizawa variable (TmzV732)

New Takamizawa variable (TmzV732)

   Kesao Takamizawa (Nagano, Japan) reports the discovery of a new variable
star (TmzV732).

TmzV732
= GSC3971.728 213508.86 +550640.2 (2000.0) 12.82 1
= USNO1425.12173090 213508.868 +550640.38 (2000.0) 12.3 16.6
= IRAS21335+5453 213332.0 +545312 (1950.0)
    F12=2.29  F25=1.10  F60=2.09L F100=20.89L
    VAR= 0 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
= 213509.0 +550638 (2000.0) IRAS21335+5453 2.395 1.048 2.133L 20.640L 0%
= 213509.0 +550638 (2000.0) SSC21335+5453 2.395 1.048 2.133L 20.640L

  Takamizawa's comment:

  The star may be a semiregular variable with a range of 12.6-13.3p.

object         YYYYMMDD(UT)   mag  code
TmzV732        19940903.567  126p  Tmz.VSOLJ
TmzV732        19941127.492  126p  Tmz.VSOLJ
TmzV732        19951212.460  128p  Tmz.VSOLJ
TmzV732        19970824.567  127p  Tmz.VSOLJ
TmzV732        19970827.549  128p  Tmz.VSOLJ
TmzV732        19971218.393  129p  Tmz.VSOLJ
TmzV732        19980916.541  127p  Tmz.VSOLJ
TmzV732        19990709.583  129p  Tmz.VSOLJ
TmzV732        19990807.602  132p  Tmz.VSOLJ
TmzV732        19991226.386  133p  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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