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[vsnet-newvar 190] New Takamizawa variable (TmzV649)

New Takamizawa variable (TmzV649)

   Kesao Takamizawa (Nagano, Japan) reports the discovery of a new variable
star (TmzV649).

TmzV649
= GSC3980.1185 214657.12 +593448.2 (2000.0) 13.51 6
= USNO1425.12460456 214657.144 +593448.46 (2000.0) 12.8 17.1
= IRAS21454+5920 214526.0 +592052 (1950.0)
    F12=2.29  F25=1.32  F60=1.58L F100=17.37L
    VAR= 9 LRS=-1
 possibly IIIa: variable star with more evolved O-rich c.s. shell
 or VIb: variable star with relatively hot dust close to
      the star and relatively cold dust at large distance
      may be O-rich
 or VII: variable star with more evolved C-rich circumstellar shell
= 214657.2 +593448 (2000.0) IRAS21454+5920 2.273 1.262 1.627L 17.960L 9%
= 214657.2 +593448 (2000.0) SSC21454+5920 2.273 1.262 1.627L 17.960L

  Takamizawa's comment:

  The star may be a semiregular variable with a range of 13.6-14.2p.

object         YYYYMMDD(UT)   mag  code
TmzV649        19940903.562  140p  Tmz.VSOLJ
TmzV649        19970824.567  136p  Tmz.VSOLJ
TmzV649        19970827.540  137p  Tmz.VSOLJ
TmzV649        19971218.437  141p  Tmz.VSOLJ
TmzV649        19980823.562  139p  Tmz.VSOLJ
TmzV649        19980916.530  137p  Tmz.VSOLJ
TmzV649        19990709.574  139p  Tmz.VSOLJ
TmzV649        19990807.594  134p  Tmz.VSOLJ
TmzV649        19991226.462  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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