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[vsnet-newvar 281] New Takamizawa variable (TmzV725)

New Takamizawa variable (TmzV725)

   Kesao Takamizawa (Nagano, Japan) reports the discovery of a new variable
star (TmzV725).

TmzV725
= GSC3972.2329 214824.89 +552213.4 (2000.0) 13.96 1
= USNO1425.12492349 214824.879 +552213.11 (2000.0) 13.2 17.1
= IRAS21467+5508 214643.7 +550810 (1950.0)
    F12=0.91  F25=0.36  F60=0.48L F100=25.11L
    VAR=20 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
= 214824.7 +552209 (2000.0) IRAS21467+5508 0.876 0.372 0.483L 24.630L 20%
= 214824.7 +552209 (2000.0) SSC21467+5508 0.876 0.372 0.483L 24.630L

  Takamizawa's comment:

  The star may be a semiregular variable with a range of 13.9-14.5p.

object         YYYYMMDD(UT)   mag  code
TmzV725        19940903.567  141p  Tmz.VSOLJ
TmzV725        19941127.492  144p  Tmz.VSOLJ
TmzV725        19951212.460  141p  Tmz.VSOLJ
TmzV725        19970824.567  142p  Tmz.VSOLJ
TmzV725        19970827.549  139p  Tmz.VSOLJ
TmzV725        19971218.393  140p  Tmz.VSOLJ
TmzV725        19980916.541  140p  Tmz.VSOLJ
TmzV725        19990709.583  144p  Tmz.VSOLJ
TmzV725        19990807.602  145p  Tmz.VSOLJ
TmzV725        19991226.386  142p  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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