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[vsnet-obs 24563] New Takamizawa variable (TmzV620)

New Takamizawa variable (TmzV620)

   Kesao Takamizawa (Nagano, Japan) reports the discovery of a new variable
star (TmzV620).

TmzV620
= GSC3971.679 214004.66 +555055.1 (2000.0) 11.61 1
= USNO1425.12295212 214004.654 +555055.40 (2000.0) 11.9 15.9
= IRAS21384+5537 213827.7 +553715 (1950.0)
    F12=2.51  F25=1.10  F60=0.76L F100=7.58L
    VAR=21 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
= 214004.8 +555053 (2000.0) IRAS21384+5537 2.549 1.112 0.774L 7.308L 21%
= 214004.8 +555053 (2000.0) SSC21384+5537 2.549 1.112 0.774L 7.308L

  Takamizawa's comment:

  The star may be a semiregular variable with a range of 11.6-12.5p.

object         YYMMDD(UT)   mag  code
TmzV620        940903.562  118p  Tmz.VSOLJ
TmzV620        970824.567  117p  Tmz.VSOLJ
TmzV620        970827.540  116p  Tmz.VSOLJ
TmzV620        971218.437  122p  Tmz.VSOLJ
TmzV620        980823.562  119p  Tmz.VSOLJ
TmzV620        980916.530  125p  Tmz.VSOLJ
TmzV620        990709.574  122p  Tmz.VSOLJ
TmzV620        990807.594  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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