[vsnet-obs 20258] New Takamizawa variable (TmzV351)

[Taichi Kato <tkato>]

New Takamizawa variable (TmzV351)

   Kesao Takamizawa (Nagano, Japan) reports the discovery of a new variable
star (TmzV351).

TmzV351
= USNO0600.03765653 073224.638 -235805.87 (2000.0) 12.6 15.7
= IRAS07303-2351 073018.3 -235137 (1950.0)
    F12=2.29  F25=1.44  F60=0.52  F100=10.00L
    VAR=11 LRS=-1
    VII: variable star with more evolved C-rich circumstellar shell
= 073224.6 -235805 (2000.0) IRAS07303-2351 2.247 1.463 0.535 9.696L 11%
= 073224.6 -235805 (2000.0) SSC07303-2351 2.247 1.463 0.535 9.696L
= 073223.9 -235700 (2000.0) M7(III)(Buscombe) - - -

  Takamizawa's comment:

  The star may be a semiregular variable with a range of 13.1-15.0p.

Photographic magnitude estimates by VSOLJ members

object         YYMMDD(UT)   mag  code
TmzV351        940314.501  147p  Tmz.VSOLJ
TmzV351        941111.731  145p  Tmz.VSOLJ
TmzV351        950203.546  145p  Tmz.VSOLJ
TmzV351        950927.799  144p  Tmz.VSOLJ
TmzV351        951118.744  140p  Tmz.VSOLJ
TmzV351        951222.685  131p  Tmz.VSOLJ
TmzV351        961021.768  145p  Tmz.VSOLJ
TmzV351        961206.707  150p  Tmz.VSOLJ
TmzV351        970103.622  148p  Tmz.VSOLJ
TmzV351        970227.485  148p  Tmz.VSOLJ
TmzV351        971013.798  146p  Tmz.VSOLJ
TmzV351        971103.802  145p  Tmz.VSOLJ
TmzV351        971204.695  146p  Tmz.VSOLJ
TmzV351        971224.633  145p  Tmz.VSOLJ
TmzV351        980121.549  139p  Tmz.VSOLJ
TmzV351        980217.497  143p  Tmz.VSOLJ
TmzV351        980325.453  138p  Tmz.VSOLJ
TmzV351        981115.737  143p  Tmz.VSOLJ
TmzV351        981212.628  147p  Tmz.VSOLJ
TmzV351        990208.557  147p  Tmz.VSOLJ
TmzV351        990404.438  <143p  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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