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[vsnet-obs 19262] New Takamizawa variable (TmzV229)

New Takamizawa variable (TmzV229)

   Kesao Takamizawa (Nagano, Japan) reports the discovery of a new variable
star (TmzV229).

TmzV229
= GSC4344.904 054903.58 +690907.5 (2000.0) 12.15 1
= GSC4344.904 054903.59 +690908.2 (2000.0) 12.37 1
= USNO1575.02457437 054903.641 +690907.93 (2000.0) 12.5 15.6
= IRAS05435+6908 054334.4 +690810 (1950.0)
    F12=0.69  F25=0.36  F60=0.40L F100=1.00L
    VAR=22 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
= 054901.6 +690908 (2000.0) FSC05435+6908 0.681 0.262 0.131L 0.676L
= 054903.1 +690909 (2000.0) IRAS05435+6908 0.691 0.349 0.400L 1.000L 22%
= 054903.1 +690909 (2000.0) SSC05435+6908 0.691 0.349 0.400L 1.000L

  Takamizawa's comment:

  The star may be a semiregurar variable  with  a range of 11.7-12.9p.

Photographic magnitude estimates by VSOLJ members

object         YYMMDD(UT)   mag  code
TmzV229        950127.514  129p  Tmz.VSOLJ
TmzV229        951128.592  128p  Tmz.VSOLJ
TmzV229        971123.579  120p  Tmz.VSOLJ
TmzV229        971203.717  119p  Tmz.VSOLJ
TmzV229        971221.501  120p  Tmz.VSOLJ
TmzV229        980302.431  128p  Tmz.VSOLJ
TmzV229        980318.438  129p  Tmz.VSOLJ
TmzV229        980820.715  117p  Tmz.VSOLJ
TmzV229        981024.645  129p  Tmz.VSOLJ
TmzV229        981218.581  125p  Tmz.VSOLJ
TmzV229        990111.539  124p  Tmz.VSOLJ
TmzV229        990204.394  126p  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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