[vsnet-obs 21822] New Takamizawa variable (TmzV463)

[Taichi Kato <tkato>]

New Takamizawa variable (TmzV463)

   Kesao Takamizawa (Nagano, Japan) reports the discovery of a new variable
star (TmzV463).

TmzV463
= GSC7120.2055 075808.37 -305538.4 (2000.0) 11.65 6
= USNO0525.05627686 075808.385 -305538.23 (2000.0) 10.2 12.3
= IRAS07561-3047 075608.1 -304724 (1950.0)
    F12=0.63  F25=0.25L F60=0.40L F100=3.02L
    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
= 075806.9 -305534 (2000.0) IRAS07561-3047 0.611 0.250L 0.400L 2.927L -1%
= 075806.9 -305534 (2000.0) SSC07561-3047 0.611 0.250L 0.400L 2.927L
= 075806.0 -305459 (2000.0) M4(III)(Buscombe) - - -

  Takamizawa's comment:

  The star may be a semiregular variable with a range of 11.6-12.3p.

object         YYMMDD(UT)   mag  code
TmzV463        941111.724  117p  Tmz.VSOLJ
TmzV463        950220.528  118p  Tmz.VSOLJ
TmzV463        951118.735  123p  Tmz.VSOLJ
TmzV463        951222.701  119p  Tmz.VSOLJ
TmzV463        960211.540  119p  Tmz.VSOLJ
TmzV463        961021.828  119p  Tmz.VSOLJ
TmzV463        970227.495  117p  Tmz.VSOLJ
TmzV463        971013.806  117p  Tmz.VSOLJ
TmzV463        971103.834  118p  Tmz.VSOLJ
TmzV463        971203.741  119p  Tmz.VSOLJ
TmzV463        971231.679  116p  Tmz.VSOLJ
TmzV463        980322.516  118p  Tmz.VSOLJ
TmzV463        981115.785  119p  Tmz.VSOLJ
TmzV463        990208.537  118p  Tmz.VSOLJ
TmzV463        990404.452  119p  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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