[vsnet-obs 19340] New Takamizawa variable (TmzV236)

[Taichi Kato <tkato>]

New Takamizawa variable (TmzV236)

   Kesao Takamizawa (Nagano, Japan) reports the discovery of a new variable
star (TmzV236).

TmzV236
= GSC2059.219 165925.09 +230619.6 (2000.0) 12.77 6
= USNO1125.08021622 165925.096 +230619.58 (2000.0) 10.7 12.2
= IRAS16573+2310 165718.5 +231046 (1950.0)
    F12=2.29  F25=0.83  F60=0.40L F100=1.00L
    VAR=11 LRS=-1
 possibly 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
= 165924.6 +230619 (2000.0) IRAS16573+2310 2.296 0.837 0.400L 1.000L 11%
= 165924.6 +230619 (2000.0) SSC16573+2310 2.296 0.837 0.400L 1.000L
= 165924.9 +230617 (2000.0) FSC16573+2310 2.286 0.785 0.159L 0.736L

  Takamizawa's comment:

  The star may be a semiregurar variable  with  a range of 10.8-12.7p.

Photographic magnitude estimates by VSOLJ members

object         YYMMDD(UT)   mag  code
TmzV236        940414.637  118p  Tmz.VSOLJ
TmzV236        940614.519  124p  Tmz.VSOLJ
TmzV236        940828.502  120p  Tmz.VSOLJ
TmzV236        950110.835  121p  Tmz.VSOLJ
TmzV236        951013.393  123p  Tmz.VSOLJ
TmzV236        960126.779  114p  Tmz.VSOLJ
TmzV236        960509.574  123p  Tmz.VSOLJ
TmzV236        960711.533  124p  Tmz.VSOLJ
TmzV236        970214.768  120p  Tmz.VSOLJ
TmzV236        970701.520  120p  Tmz.VSOLJ
TmzV236        971020.464  123p  Tmz.VSOLJ
TmzV236        980329.740  123p  Tmz.VSOLJ
TmzV236        980520.579  123p  Tmz.VSOLJ
TmzV236        980912.512  121p  Tmz.VSOLJ
TmzV236        981010.448  127p  Tmz.VSOLJ
TmzV236        990219.793  108p  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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