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[vsnet-newvar 201] New Takamizawa variable (TmzV659)

New Takamizawa variable (TmzV659)

   Kesao Takamizawa (Nagano, Japan) reports the discovery of a new variable
star (TmzV659).

TmzV659
= GSC3981.1555 220605.28 +584636.8 (2000.0) 13.48 6
= USNO1425.12936086 220605.252 +584636.97 (2000.0) 13.5 15.2
=? IRAS22043+5832 220421.8 +583200 (1950.0)
    F12=3.98  F25=1.44  F60=0.63L F100=25.11L
    VAR=65 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

  Takamizawa's comment:

  The star may be a semiregular variable with a range of 13.1-13.7p.

object         YYYYMMDD(UT)   mag  code
TmzV659        19940903.562  137p  Tmz.VSOLJ
TmzV659        19970824.567  131p  Tmz.VSOLJ
TmzV659        19970827.540  133p  Tmz.VSOLJ
TmzV659        19971218.437  135p  Tmz.VSOLJ
TmzV659        19980823.562  134p  Tmz.VSOLJ
TmzV659        19980916.530  133p  Tmz.VSOLJ
TmzV659        19990709.574  132p  Tmz.VSOLJ
TmzV659        19990807.594  137p  Tmz.VSOLJ
TmzV659        19991226.462  135p  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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