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[vsnet-newvar 236] New Takamizawa variable (TmzV688)

New Takamizawa variable (TmzV688)

   Kesao Takamizawa (Nagano, Japan) reports the discovery of a new variable
star (TmzV688).

TmzV688
= GSC3981.826 221256.19 +594649.9 (2000.0) 11.79 6
= USNO1425.13142820 221256.256 +594650.32 (2000.0) 11.5 14.8
= IRAS22112+5931 221114.9 +593156 (1950.0)
    F12=0.76  F25=0.28L F60=2.09L F100=25.11L
    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
= 221256.8 +594648 (2000.0) IRAS22112+5931 0.792 0.281L 2.020L 25.750L -1%
= 221256.8 +594648 (2000.0) SSC22112+5931 0.792 0.281L 2.020L 25.750L

  Takamizawa's comment:

  The star may be a semiregular variable with a range of 11.3-12.3p.

object         YYYYMMDD(UT)   mag  code
TmzV688        19940903.562  118p  Tmz.VSOLJ
TmzV688        19970824.567  117p  Tmz.VSOLJ
TmzV688        19970827.540  119p  Tmz.VSOLJ
TmzV688        19971218.437  113p  Tmz.VSOLJ
TmzV688        19980823.562  121p  Tmz.VSOLJ
TmzV688        19980916.530  119p  Tmz.VSOLJ
TmzV688        19990709.574  120p  Tmz.VSOLJ
TmzV688        19990807.594  120p  Tmz.VSOLJ
TmzV688        19991226.462  123p  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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