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[vsnet-obs 21981] New Takamizawa variable (TmzV491)

New Takamizawa variable (TmzV491)

   Kesao Takamizawa (Nagano, Japan) reports the discovery of a new variable
star (TmzV491).

TmzV491
= GSC6021.90 085148.00 -190924.4 (2000.0) 11.55 0
= USNO0675.06992006 085148.026 -190924.71 (2000.0)  9.4 12.3
= IRAS08495-1858 084932.1 -185808 (1950.0)
    F12=2.51  F25=1.20  F60=0.40L F100=1.00L
    VAR= 6 LRS=-1
 possibly II: variable star with 'young' O-rich circumstellar shell
 or VII: variable star with more evolved C-rich circumstellar shell
= 085146.7 -190929 (2000.0) SD-18.2504 9.4
= 085146.7 -190917 (2000.0) FSC08494-1857 2.650 1.059 0.230L 1.096L
= 085148.8 -190927 (2000.0) IRAS08495-1858 2.629 1.152 0.400L 1.005L 6%
= 085148.8 -190927 (2000.0) SSC08495-1858 2.629 1.152 0.400L 1.005L
= 085148.0 -190924 (2000.0) 1025 1.96 TYC6021.90.1 plx=-8.4(46.9) (0.05 0.30)

  Takamizawa's comment:

  The star may be a semiregular variable with a range of 10.4-11.6p.

object         YYMMDD(UT)   mag  code
TmzV491        941109.794  107p  Tmz.VSOLJ
TmzV491        950203.655  113p  Tmz.VSOLJ
TmzV491        960112.567  107p  Tmz.VSOLJ
TmzV491        971105.778  116p  Tmz.VSOLJ
TmzV491        980102.642  107p  Tmz.VSOLJ
TmzV491        980125.544  111p  Tmz.VSOLJ
TmzV491        980322.524  107p  Tmz.VSOLJ
TmzV491        980329.476  104p  Tmz.VSOLJ
TmzV491        981117.801  109p  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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