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[vsnet-obs 21980] New Takamizawa variable (TmzV490)

New Takamizawa variable (TmzV490)

   Kesao Takamizawa (Nagano, Japan) reports the discovery of a new variable
star (TmzV490).

TmzV490
= GSC6014.1003 090055.50 -153051.4 (2000.0) 13.55 0
= USNO0675.07108810 090055.521 -153051.84 (2000.0) 10.9 13.1
= IRAS08585-1519 085834.2 -151900 (1950.0)
    F12=0.69  F25=0.40  F60=0.40L F100=1.00L
    VAR=12 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
= 090054.8 -153047 (2000.0) IRAS08585-1519 0.680 0.401 0.400L 1.000L 12%
= 090054.8 -153047 (2000.0) SSC08585-1519 0.680 0.401 0.400L 1.000L
= 090055.4 -153050 (2000.0) FSC08585-1519 0.716 0.326 0.161L 1.230L

  Takamizawa's comment:

  The star may be a semiregular variable with a range of 12.4-13.2p.

object         YYMMDD(UT)   mag  code
TmzV490        941109.794  125p  Tmz.VSOLJ
TmzV490        950203.655  124p  Tmz.VSOLJ
TmzV490        960112.567  130p  Tmz.VSOLJ
TmzV490        971105.778  132p  Tmz.VSOLJ
TmzV490        980102.642  125p  Tmz.VSOLJ
TmzV490        980125.544  128p  Tmz.VSOLJ
TmzV490        980322.524  129p  Tmz.VSOLJ
TmzV490        980329.476  128p  Tmz.VSOLJ
TmzV490        981117.801  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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