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[vsnet-newvar 234] New Takamizawa variable (TmzV686)

New Takamizawa variable (TmzV686)

   Kesao Takamizawa (Nagano, Japan) reports the discovery of a new variable
star (TmzV686).

TmzV686
= GSC3990.793 221525.79 +573243.0 (2000.0) 13.24 1
= GSC3990.793 221525.88 +573243.4 (2000.0) 12.90 6
= USNO1425.13218274 221525.819 +573243.10 (2000.0) 12.2 15.7
= IRAS22136+5717 221338.5 +571745 (1950.0)
    F12=0.52  F25=0.25L F60=0.44L F100=33.10L
    VAR=-1 LRS=-1
 possibly I: oxygen-rich non-variable star without circumstellar shell
 or 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
= 221525.7 +573242 (2000.0) IRAS22136+5717 0.531 0.250L 0.437L 31.650L -1%
= 221525.7 +573242 (2000.0) SSC22136+5717 0.531 0.250L 0.437L 31.650L

  Takamizawa's comment:

  The star may be a semiregular variable with a range of 12.9-13.6p.

object         YYYYMMDD(UT)   mag  code
TmzV686        19940903.562  136p  Tmz.VSOLJ
TmzV686        19970824.567  129p  Tmz.VSOLJ
TmzV686        19970827.540  132p  Tmz.VSOLJ
TmzV686        19971218.437  134p  Tmz.VSOLJ
TmzV686        19980823.562  133p  Tmz.VSOLJ
TmzV686        19980916.530  134p  Tmz.VSOLJ
TmzV686        19990709.574  135p  Tmz.VSOLJ
TmzV686        19990807.594  132p  Tmz.VSOLJ
TmzV686        19991226.462  136p  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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