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[vsnet-newvar 185] New Takamizawa variable (TmzV645)

New Takamizawa variable (TmzV645)

   Kesao Takamizawa (Nagano, Japan) reports the discovery of a new variable
star (TmzV645).

TmzV645
= GSC4263.957 220011.50 +605133.7 (2000.0) 11.11 6 N
= USNO1500.08728674 220011.340 +605134.01 (2000.0) 99.9 13.7
= IRAS21586+6037 215838.3 +603708 (1950.0)
    F12=1.58  F25=0.76  F60=0.44L F100=5.25L
    VAR= 0 LRS=-1
 possibly 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
= 220012.1 +605134 (2000.0) IRAS21586+6037 1.540 0.779 0.429L 5.354L 0%
= 220012.1 +605134 (2000.0) SSC21586+6037 1.540 0.779 0.429L 5.354L

  Takamizawa's comment:

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

object         YYYYMMDD(UT)   mag  code
TmzV645        19940903.562  116p  Tmz.VSOLJ
TmzV645        19970824.567  120p  Tmz.VSOLJ
TmzV645        19970827.540  119p  Tmz.VSOLJ
TmzV645        19971218.437  120p  Tmz.VSOLJ
TmzV645        19980823.562  119p  Tmz.VSOLJ
TmzV645        19980916.530  119p  Tmz.VSOLJ
TmzV645        19990709.574  122p  Tmz.VSOLJ
TmzV645        19990807.594  119p  Tmz.VSOLJ
TmzV645        19991226.462  117p  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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