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[vsnet-newvar 645] New Takamizawa variable (TmzV758)

New Takamizawa variable (TmzV758)

   Kesao Takamizawa (Nagano, Japan) reports the discovery of a new variable
star (TmzV758).

TmzV758
= GSC6943.765 213427.95 -254232.3 (2000.0) 12.40 0 N
= USNO0600.23841140 213427.894 -254233.32 (2000.0)  9.3 11.9
= USNO0600.23841150 213427.994 -254233.68 (2000.0)  9.7 12.2
= 2MASS 213427.936 -254232.04 (2000.0)  0.000  0.000  0.000
= IRAS21315-2555 213135.2 -255555 (1950.0)
     F12=1.44  F25=0.44  F60=0.40L F100=1.32L
     VAR=30 LRS=-1
= 213428.6 -254252 (2000.0) CD-26.15684 9.8
= 213428.2 -254232 (2000.0) IRAS21315-2555 1.439 0.444 0.400L 1.367L 30%
= 213428.2 -254232 (2000.0) SSC21315-2555 1.439 0.444 0.400L 1.367L
= 213428.6 -254229 (2000.0) FSC21315-2555 1.370 0.365 0.155 0.645L
= 213427.9 -254232 (2000.0) 1102 1.06 TYC6943.765.1 plx=-38.5(56.2) (0.13 0.25)
= 213427.9 -254232 (2000.0) 1086 1.26 TYC2-6943.765.1 (10.99 0.07) (12.47 0.21)

  Takamizawa's comment:

  The star may be a semiregular variable with a range of 10.7-12.3p.

Photographic magnitude estimates by VSOLJ members

object         YYYYMMDD(UT)   mag  code
TmzV758        19940512.758  113p  Tmz.VSOLJ
TmzV758        19940705.623  108p  Tmz.VSOLJ
TmzV758        19940803.601  112p  Tmz.VSOLJ
TmzV758        19940930.551  110p  Tmz.VSOLJ
TmzV758        19941124.449  120p  Tmz.VSOLJ
TmzV758        19950723.670  108p  Tmz.VSOLJ
TmzV758        19951020.456  123p  Tmz.VSOLJ
TmzV758        19960721.663  114p  Tmz.VSOLJ
TmzV758        19970828.585  108p  Tmz.VSOLJ
TmzV758        19990709.631  107p  Tmz.VSOLJ
TmzV758        19991029.464  110p  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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