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[vsnet-obs 19770] New Takamizawa variable (TmzV274)

New Takamizawa variable (TmzV274)

   Kesao Takamizawa (Nagano, Japan) reports the discovery of a new variable
star (TmzV274).

TmzV274
= GSC5373.2355 063639.15 -130513.2 (2000.0) 12.31 0
= GSC5373.2355 063639.21 -130513.7 (2000.0) 12.71 0
= USNO0750.02419186 063639.177 -130513.46 (2000.0)  9.3 12.3
= IRAS06343-1302 063420.5 -130240 (1950.0)
    F12=6.31  F25=2.51  F60=1.00  F100=2.09 
    VAR=19 LRS=-1
    VII: variable star with more evolved C-rich circumstellar shell
= 063638.8 -130514 (2000.0) IRAS06343-1302 6.157 2.500 0.998 2.167 19%
= 063638.8 -130514 (2000.0) SSC06343-1302 6.157 2.500 0.998 2.167

  Takamizawa's comment:

  The star may be a semiregular variable with a range of 11.5-12.3p.

Photographic magnitude estimates by VSOLJ members

object         YYMMDD(UT)   mag  code
TmzV274        940331.481  123p  Tmz.VSOLJ
TmzV274        941127.608  117p  Tmz.VSOLJ
TmzV274        950203.519  121p  Tmz.VSOLJ
TmzV274        950219.442  120p  Tmz.VSOLJ
TmzV274        951021.750  118p  Tmz.VSOLJ
TmzV274        951219.605  120p  Tmz.VSOLJ
TmzV274        960111.501  123p  Tmz.VSOLJ
TmzV274        961206.602  115p  Tmz.VSOLJ
TmzV274        971103.759  121p  Tmz.VSOLJ
TmzV274        971221.572  120p  Tmz.VSOLJ
TmzV274        990206.492  119p  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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