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[vsnet-newvar 1152] New Takamizawa variable (TmzV840)

New Takamizawa variable (TmzV840)

   Kesao Takamizawa (Nagano, Japan) reports the discovery of a new variable
star (TmzV840).

TmzV840
= GSC2315.1403 015619.39 +342456.7 (2000.0) 12.15 1
= USNO1200.00823546 015619.405 +342456.79 (2000.0) 11.3 14.1
= IRAS01533+3410 015323.4 +341014 (1950.0)
     F12=0.44  F25=0.25L F60=0.40L F100=1.00L
     VAR=-1 LRS=-1
= 015618.9 +342452 (2000.0) IRAS01533+3410 0.439 0.250L 0.400L 1.000L -1%
= 015618.9 +342452 (2000.0) SSC01533+3410 0.439 0.250L 0.400L 1.000L
= 015619.3 +342455 (2000.0) FSC01533+3410 0.395 0.158 0.127L 0.511L

  Takamizawa's comment:

  The star may be a semiregular variable  with a range of 12.6-13.5p.

Photographic magnitude estimates by VSOLJ members

object         YYYYMMDD(UT)   mag  code
TmzV840        19940705.717  131p  Tmz.VSOLJ
TmzV840        19940803.679  128p  Tmz.VSOLJ
TmzV840        19941102.652  127p  Tmz.VSOLJ
TmzV840        19950127.416  128p  Tmz.VSOLJ
TmzV840        19950320.437  128p  Tmz.VSOLJ
TmzV840        19950921.616  133p  Tmz.VSOLJ
TmzV840        19951217.524  132p  Tmz.VSOLJ
TmzV840        19960110.428  135p  Tmz.VSOLJ
TmzV840        19960815.634  128p  Tmz.VSOLJ
TmzV840        19970706.703  134p  Tmz.VSOLJ
TmzV840        19970830.647  133p  Tmz.VSOLJ
TmzV840        19971203.519  129p  Tmz.VSOLJ
TmzV840        19980629.710  126p  Tmz.VSOLJ
TmzV840        19981112.539  126p  Tmz.VSOLJ
TmzV840        19990709.706  127p  Tmz.VSOLJ
TmzV840        19991128.456  129p  Tmz.VSOLJ
TmzV840        20000604.735  129p  Tmz.VSOLJ
TmzV840        20000902.694  130p  Tmz.VSOLJ
TmzV840        20011023.588  131p  Tmz.VSOLJ

Observer's code:
  Tmz: K.Takamizawa (Saku-machi,Nagano,Japan)
       SASS (Saku All Sky Survey)
       Inst.: 10cmR F4 twin patrol cameras and 25cm F2.8
       Baker-Schmidt camera T-Max400 120
       Comparison stars mag.:GSC

Relayed from Kesao Takamizawa <k-takamizawa@nifty.ne.jp>

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