[vsnet-newvar 181] New Takamizawa variable (TmzV641)

[Taichi Kato <tkato>]

New Takamizawa variable (TmzV641)

   Kesao Takamizawa (Nagano, Japan) reports the discovery of a new variable
star (TmzV641).

TmzV641
= GSC4262.479 215735.48 +614607.3 (2000.0) 12.55 6
= IRAS21560+6131 215605.3 +613143 (1950.0)
    F12=1.00  F25=0.33  F60=0.48L F100=4.78L
    VAR= 7 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
= 215735.4 +614603 (2000.0) CS5523 - 13.5 9.5 -
= 215735.6 +614603 (2000.0) IRAS21560+6131 1.037 0.342 0.471L 5.005L 7%
= 215735.6 +614603 (2000.0) SSC21560+6131 1.037 0.342 0.471L 5.005L

  Takamizawa's comment:

  The star may be a semiregular variable with a range of 12.2-12.8p.

object         YYYYMMDD(UT)   mag  code
TmzV641        19940903.562  128p  Tmz.VSOLJ
TmzV641        19970824.567  126p  Tmz.VSOLJ
TmzV641        19970827.540  128p  Tmz.VSOLJ
TmzV641        19971218.437  126p  Tmz.VSOLJ
TmzV641        19980823.562  125p  Tmz.VSOLJ
TmzV641        19980916.530  125p  Tmz.VSOLJ
TmzV641        19990709.574  126p  Tmz.VSOLJ
TmzV641        19990807.594  127p  Tmz.VSOLJ
TmzV641        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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