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[vsnet-obs 19221] New Takamizawa variable (TmzV225)

New Takamizawa variable (TmzV225)

   Kesao Takamizawa (Nagano, Japan) reports the discovery of a new variable
star (TmzV225).

TmzV225
= GSC4088.476 051438.39 +640622.2 (2000.0) 12.76 1
= USNO1500.04154135 051438.430 +640622.30 (2000.0) 11.9 15.4
= IRAS05098+6402 050950.8 +640255 (1950.0)
    F12=0.63  F25=0.33  F60=0.40L F100=1.10L
    VAR= 0 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
= 051438.1 +640619 (2000.0) FSC05098+6402 0.630 0.315 0.205L 1.834L
= 051438.9 +640622 (2000.0) IRAS05098+6402 0.629 0.336 0.400L 1.060L 0%
= 051438.9 +640622 (2000.0) SSC05098+6402 0.629 0.336 0.400L 1.060L

  Takamizawa's comment:

  The star may be a semiregurar variable  with  a range of 12.9-14.0p.

Photographic magnitude estimates by VSOLJ members

object         YYMMDD(UT)   mag  code
TmzV225        950127.514  130p  Tmz.VSOLJ
TmzV225        951128.592  132p  Tmz.VSOLJ
TmzV225        971123.579  139p  Tmz.VSOLJ
TmzV225        971221.472  135p  Tmz.VSOLJ
TmzV225        980116.455  129p  Tmz.VSOLJ
TmzV225        980820.715  136p  Tmz.VSOLJ
TmzV225        980823.706  132p  Tmz.VSOLJ
TmzV225        981024.551  135p  Tmz.VSOLJ
TmzV225        981218.581  140p  Tmz.VSOLJ
TmzV225        990204.394  130p  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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