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[vsnet-newvar 218] New Takamizawa variable (TmzV670)

New Takamizawa variable (TmzV670)

   Kesao Takamizawa (Nagano, Japan) reports the discovery of a new variable
star (TmzV670).

TmzV670
= GSC4264.749 222548.24 +605143.7 (2000.0) 12.57 6
= GSC4264.749 222548.29 +605143.5 (2000.0) 12.30 6
= USNO1500.09147625 222548.300 +605143.47 (2000.0) 11.6 15.9
= IRAS22240+6036 222402.5 +603627 (1950.0)
    F12=0.69  F25=0.14  F60=0.48L F100=6.31L
    VAR= 0 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
= 222548.1 +605143 (2000.0) IRAS22240+6036 0.675 0.151 0.463L 6.170L 0%
= 222548.1 +605143 (2000.0) SSC22240+6036 0.675 0.151 0.463L 6.170L

  Takamizawa's comment:

  The star may be a semiregular variable with a range of 12.6-13.1p.

object         YYYYMMDD(UT)   mag  code
TmzV670        19940903.562  128p  Tmz.VSOLJ
TmzV670        19970824.567  129p  Tmz.VSOLJ
TmzV670        19970827.540  130p  Tmz.VSOLJ
TmzV670        19971218.437  131p  Tmz.VSOLJ
TmzV670        19980823.562  127p  Tmz.VSOLJ
TmzV670        19980916.530  127p  Tmz.VSOLJ
TmzV670        19990709.574  127p  Tmz.VSOLJ
TmzV670        19990807.594  129p  Tmz.VSOLJ
TmzV670        19991226.462  126p  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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