[vsnet-obs 18304] New Takamizawa variable (TmzV108)

[Taichi Kato <tkato>]

New Takamizawa variable (TmzV108)

   Kesao Takamizawa (Nagano, Japan) reports the discovery of a new variable
star (TmzV108).

TmzV107
= IRAS06533-1200 065319.2 -120056 (1950.0)
    F12=0.63  F25=0.28L F60=0.40L F100=2.29L
    VAR=-1 LRS=-1
 possibly I: oxygen-rich non-variable star without circumstellar shell
 or II: variable star with 'young' O-rich circumstellar shell
 or VII: variable star with more evolved C-rich circumstellar shell
 or VIa: non-variable star with relatively cold dust at large
      distance, may be carbon-rich
= 065539.0 -120451 (2000.0) IRAS06533-1200 0.645 0.271L 0.400L 2.220L -1%
= 065539.0 -120451 (2000.0) SSC06533-1200 0.645 0.271L 0.400L 2.220L

  No USNO counterpart.

  Takamizawa's comment:

  The star may be a semiregular variable (SR) with a range of 13.7-<15.4p.

Photographic magnitude estimates by VSOLJ members

object         YYMMDD(UT)   mag  code
TmzV108        940314.488  137p  Tmz.VSOLJ
TmzV108        940402.451  138p  Tmz.VSOLJ
TmzV108        941203.720  150p  Tmz.VSOLJ
TmzV108        950210.798  153p  Tmz.VSOLJ
TmzV108        951118.753  138p  Tmz.VSOLJ
TmzV108        951219.615  154p  Tmz.VSOLJ
TmzV108        960211.504  152p  Tmz.VSOLJ
TmzV108        961021.752  151p  Tmz.VSOLJ
TmzV108        961206.651  <154p  Tmz.VSOLJ
TmzV108        970103.604  <154p  Tmz.VSOLJ
TmzV108        970127.474  <145p  Tmz.VSOLJ
TmzV108        971203.670  <152p  Tmz.VSOLJ
TmzV108        971224.623  <150p  Tmz.VSOLJ
TmzV108        980119.507  149p  Tmz.VSOLJ
TmzV108        980217.485  148p  Tmz.VSOLJ
TmzV108        980318.512  148p  Tmz.VSOLJ
TmzV108        981115.721  149p  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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