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[vsnet-obs 21997] New Takamizawa variable (TmzV497)

New Takamizawa variable (TmzV497)

   Kesao Takamizawa (Nagano, Japan) reports the discovery of a new variable
star (TmzV497).

TmzV497
= GSC6011.154 083629.46 -160155.5 (2000.0) 12.93 0
= USNO0675.06717000 083629.476 -160155.67 (2000.0) 10.8 13.6
= IRAS08341-1551 083410.6 -155127 (1950.0)
    F12=1.20  F25=0.58  F60=0.40L F100=1.00L
    VAR=41 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
= 083629.4 -160152 (2000.0) LMS107 M6 13.5
= 083629.4 -160155 (2000.0) IRAS08341-1551 1.202 0.589 0.400L 1.000L 41%
= 083629.4 -160155 (2000.0) SSC08341-1551 1.202 0.589 0.400L 1.000L
= 083629.5 -160156 (2000.0) FSC08341-1551 1.108 0.571 0.166L 0.642L

  Takamizawa's comment:

  The star may be a semiregular variable with a range of 11.8-12.9p.

object         YYMMDD(UT)   mag  code
TmzV497        941109.794  121p  Tmz.VSOLJ
TmzV497        950203.655  123p  Tmz.VSOLJ
TmzV497        960112.567  125p  Tmz.VSOLJ
TmzV497        971105.778  129p  Tmz.VSOLJ
TmzV497        980102.642  122p  Tmz.VSOLJ
TmzV497        980125.544  119p  Tmz.VSOLJ
TmzV497        980322.524  118p  Tmz.VSOLJ
TmzV497        980329.476  121p  Tmz.VSOLJ
TmzV497        981117.801  127p  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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