[vsnet-newvar 235] New Takamizawa variable (TmzV687)

[Taichi Kato <tkato>]

New Takamizawa variable (TmzV687)

   Kesao Takamizawa (Nagano, Japan) reports the discovery of a new variable
star (TmzV687).

TmzV687
= GSC3994.351 221415.47 +592201.3 (2000.0) 11.67 6
= USNO1425.13183141 221415.486 +592201.54 (2000.0) 11.0 15.5
= IRAS22125+5907 221232.3 +590708 (1950.0)
    F12=1.10  F25=0.36  F60=2.29L F100=7.58 
    VAR= 6 LRS=-1
 possibly I: oxygen-rich non-variable star without 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
= 221415.6 +592203 (2000.0) IRAS22125+5907 1.098 0.348 2.323L 7.669 6%
= 221415.6 +592203 (2000.0) SSC22125+5907 1.098 0.348 2.323L 7.669

  Takamizawa's comment:

  The star may be a semiregular variable with a range of 11.6-12.3p.

object         YYYYMMDD(UT)   mag  code
TmzV687        19940903.562  117p  Tmz.VSOLJ
TmzV687        19970824.567  120p  Tmz.VSOLJ
TmzV687        19970827.540  120p  Tmz.VSOLJ
TmzV687        19971218.437  118p  Tmz.VSOLJ
TmzV687        19980823.562  121p  Tmz.VSOLJ
TmzV687        19980916.530  116p  Tmz.VSOLJ
TmzV687        19990709.574  123p  Tmz.VSOLJ
TmzV687        19990807.594  120p  Tmz.VSOLJ
TmzV687        19991226.462  122p  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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