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[vsnet-obs 21845] New Takamizawa variable (TmzV468)

New Takamizawa variable (TmzV468)

   Kesao Takamizawa (Nagano, Japan) reports the discovery of a new variable
star (TmzV468).

TmzV468
= GSC6565.3203 075332.58 -290234.1 (2000.0) 12.39 6
= USNO0600.04693428 075332.578 -290234.20 (2000.0) 10.5 13.2
= IRAS07515-2854 075132.3 -285445 (1950.0)
    F12=0.58  F25=0.28  F60=0.40L F100=2.75L
    VAR= 3 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
= 075333.3 -290237 (2000.0) IRAS07515-2854 0.594 0.265 0.400L 2.654L 3%
= 075333.3 -290237 (2000.0) SSC07515-2854 0.594 0.265 0.400L 2.654L

  Takamizawa's comment:

  The star may be a semiregular variable with a range of 12.5-13.1p.

object         YYMMDD(UT)   mag  code
TmzV468        941111.724  126p  Tmz.VSOLJ
TmzV468        950220.528  130p  Tmz.VSOLJ
TmzV468        951118.735  131p  Tmz.VSOLJ
TmzV468        951222.701  129p  Tmz.VSOLJ
TmzV468        960211.540  130p  Tmz.VSOLJ
TmzV468        961021.828  127p  Tmz.VSOLJ
TmzV468        970227.495  130p  Tmz.VSOLJ
TmzV468        971013.806  126p  Tmz.VSOLJ
TmzV468        971103.834  125p  Tmz.VSOLJ
TmzV468        971203.741  129p  Tmz.VSOLJ
TmzV468        971231.679  128p  Tmz.VSOLJ
TmzV468        980322.516  128p  Tmz.VSOLJ
TmzV468        981115.785  127p  Tmz.VSOLJ
TmzV468        990208.537  125p  Tmz.VSOLJ
TmzV468        990404.452  126p  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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