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[vsnet-obs 20243] New Takamizawa variable (TmzV344)

New Takamizawa variable (TmzV344)

   Kesao Takamizawa (Nagano, Japan) reports the discovery of a new variable
star (TmzV344).

TmzV344
= GSC5978.671 072540.24 -220228.1 (2000.0) 13.28 0
= GSC5978.671 072540.26 -220227.5 (2000.0) 13.39 0
= USNO0675.04100647 072540.246 -220227.99 (2000.0) 11.6 14.4
= IRAS07235-2156 072332.2 -215626 (1950.0)
    F12=3.31  F25=1.74  F60=0.52  F100=2.09L
    VAR= 7 LRS=-1
    VII: variable star with more evolved C-rich circumstellar shell
= 072540.7 -220227 (2000.0) IRAS07235-2156 3.196 1.783 0.532 2.122L 7%
= 072540.7 -220227 (2000.0) SSC07235-2156 3.196 1.783 0.532 2.122L
= 072536.0 -220159 (2000.0) M6(III)(Buscombe) - - -

  Takamizawa's comment:

  The star may be a semiregular variable with a range of 12.0-13.5p.

Photographic magnitude estimates by VSOLJ members

object         YYMMDD(UT)   mag  code
TmzV344        940314.501  130p  Tmz.VSOLJ
TmzV344        941111.731  125p  Tmz.VSOLJ
TmzV344        950203.546  131p  Tmz.VSOLJ
TmzV344        950927.799  120p  Tmz.VSOLJ
TmzV344        951118.744  125p  Tmz.VSOLJ
TmzV344        951222.685  130p  Tmz.VSOLJ
TmzV344        961021.768  125p  Tmz.VSOLJ
TmzV344        961206.707  126p  Tmz.VSOLJ
TmzV344        970103.622  127p  Tmz.VSOLJ
TmzV344        970227.485  130p  Tmz.VSOLJ
TmzV344        971013.798  129p  Tmz.VSOLJ
TmzV344        971103.802  128p  Tmz.VSOLJ
TmzV344        971204.695  131p  Tmz.VSOLJ
TmzV344        971224.633  130p  Tmz.VSOLJ
TmzV344        980121.549  129p  Tmz.VSOLJ
TmzV344        980217.497  126p  Tmz.VSOLJ
TmzV344        980325.453  126p  Tmz.VSOLJ
TmzV344        981115.737  135p  Tmz.VSOLJ
TmzV344        981212.628  132p  Tmz.VSOLJ
TmzV344        990208.557  132p  Tmz.VSOLJ
TmzV344        990404.438  129p  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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