[vsnet-newvar 215] New Takamizawa variable (TmzV667)

[Taichi Kato <tkato>]

New Takamizawa variable (TmzV667)

   Kesao Takamizawa (Nagano, Japan) reports the discovery of a new variable
star (TmzV667).

TmzV667
= GSC4264.469 221914.12 +612240.0 (2000.0) 12.76 6
= USNO1500.09078797 221914.168 +612240.49 (2000.0) 12.1 16.7
= IRAS22175+6107 221732.6 +610739 (1950.0)
    F12=0.63  F25=0.21  F60=0.76  F100=36.30L
    VAR= 0 LRS=-1
    VIa: non-variable star with relatively cold dust at large
      distance, may be carbon-rich
= 221914.0 +612244 (2000.0) IRAS22175+6107 0.634 0.207 0.731 36.550L 0%
= 221914.0 +612244 (2000.0) SSC22175+6107 0.634 0.207 0.731 36.550L

  Takamizawa's comment:

  The star may be a semiregular variable with a range of 13.0-13.4p.

object         YYYYMMDD(UT)   mag  code
TmzV667        19940903.562  130p  Tmz.VSOLJ
TmzV667        19970824.567  132p  Tmz.VSOLJ
TmzV667        19970827.540  131p  Tmz.VSOLJ
TmzV667        19971218.437  133p  Tmz.VSOLJ
TmzV667        19980823.562  133p  Tmz.VSOLJ
TmzV667        19980916.530  132p  Tmz.VSOLJ
TmzV667        19990709.574  134p  Tmz.VSOLJ
TmzV667        19990807.594  131p  Tmz.VSOLJ
TmzV667        19991226.462  131p  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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