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[vsnet-obs 23338] New Takamizawa variable (TmzV524)

New Takamizawa variable (TmzV524)

   Kesao Takamizawa (Nagano, Japan) reports the discovery of a new variable
star (TmzV524).

TmzV524
= GSC6599.2259 091753.83 -290521.6 (2000.0) 14.29 0
= USNO0600.07368912 091753.828 -290521.28 (2000.0) 11.9 15.0
= IRAS09157-2852 091544.4 -285244 (1950.0)
    F12=0.91  F25=0.52  F60=0.40L F100=1.00L
    VAR=19 LRS=-1
 possibly IIIa: variable star with more evolved O-rich c.s. shell
 or VIb: variable star with relatively hot dust close to
      the star and relatively cold dust at large distance
      may be O-rich
 or VII: variable star with more evolved C-rich circumstellar shell
= 091753.9 -290522 (2000.0) IRAS09157-2852 0.943 0.512 0.400L 1.000L 19%
= 091753.9 -290522 (2000.0) SSC09157-2852 0.943 0.512 0.400L 1.000L
= 091754.1 -290523 (2000.0) FSC09157-2852 0.855 0.527 0.206L 1.259L

  Takamizawa's comment:

  The star may be a semiregular variable with a range of 13.2-13.8p.

object         YYMMDD(UT)   mag  code
TmzV524        950222.514  134p  Tmz.VSOLJ
TmzV524        950401.492  138p  Tmz.VSOLJ
TmzV524        980102.696  138p  Tmz.VSOLJ
TmzV524        980325.497  132p  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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