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[vsnet-obs 24671] New Takamizawa variable (TmzV623)

New Takamizawa variable (TmzV623)

   Kesao Takamizawa (Nagano, Japan) reports the discovery of a new variable
star (TmzV623).

TmzV623
= GSC3975.640 213946.18 +573936.6 (2000.0) 12.07 1
= GSC3975.640 213946.35 +573935.6 (2000.0) 11.78 1
= USNO1425.12287397 213946.280 +573936.28 (2000.0) 10.7 14.7
= IRAS21382+5725 213813.4 +572556 (1950.0)
    F12=1.20  F25=0.30  F60=3.02L F100=43.64L
    VAR= 3 LRS=-1
 possibly I: oxygen-rich non-variable star without circumstellar shell
 or VIa: non-variable star with relatively cold dust at large
      distance, may be carbon-rich
= 213946.4 +573934 (2000.0) IRAS21382+5725 1.207 0.311 3.132L 42.110L 3%
= 213946.4 +573934 (2000.0) SSC21382+5725 1.207 0.311 3.132L 42.110L

  Takamizawa's comment:

  The star may be a semiregular variable with a range of 11.6-12.2p.

object         YYMMDD(UT)   mag  code
TmzV623        940903.562  120p  Tmz.VSOLJ
TmzV623        970824.567  122p  Tmz.VSOLJ
TmzV623        970827.540  122p  Tmz.VSOLJ
TmzV623        971218.437  120p  Tmz.VSOLJ
TmzV623        980823.562  117p  Tmz.VSOLJ
TmzV623        980916.530  119p  Tmz.VSOLJ
TmzV623        990709.574  116p  Tmz.VSOLJ
TmzV623        990807.594  120p  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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