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[vsnet-obs 21946] New Takamizawa variable (TmzV472)

New Takamizawa variable (TmzV472)

   Kesao Takamizawa (Nagano, Japan) reports the discovery of a new variable
star (TmzV472).

TmzV472
= GSC7126.217 081613.33 -323505.4 (2000.0) 13.15 0
= GSC7126.217 081613.35 -323503.4 (2000.0) 11.59 6
= GSC7126.217 081613.40 -323505.0 (2000.0) 11.28 6
= GSC7126.217 081613.48 -323504.8 (2000.0) 12.60 0
= USNO0525.06641092 081613.408 -323504.87 (2000.0) 10.0 12.3
= IRAS08142-3225 081415.5 -322550 (1950.0)
    F12=1.90  F25=0.69  F60=0.40L F100=5.25L
    VAR= 7 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
= 081613.8 -323507 (2000.0) IRAS08142-3225 1.890 0.688 0.400L 5.056L 7%
= 081613.8 -323507 (2000.0) SSC08142-3225 1.890 0.688 0.400L 5.056L
= 081611.9 -323359 (2000.0) M6(III)(Buscombe) - - -

  Takamizawa's comment:

  The star may be a semiregular variable with a range of 11.3-12.4p.

object         YYMMDD(UT)   mag  code
TmzV472        941111.724  115p  Tmz.VSOLJ
TmzV472        950220.528  124p  Tmz.VSOLJ
TmzV472        951118.735  118p  Tmz.VSOLJ
TmzV472        951222.701  115p  Tmz.VSOLJ
TmzV472        960211.540  116p  Tmz.VSOLJ
TmzV472        961021.828  118p  Tmz.VSOLJ
TmzV472        970227.495  118p  Tmz.VSOLJ
TmzV472        971013.806  113p  Tmz.VSOLJ
TmzV472        971103.834  116p  Tmz.VSOLJ
TmzV472        971203.741  113p  Tmz.VSOLJ
TmzV472        971231.679  115p  Tmz.VSOLJ
TmzV472        980322.516  112p  Tmz.VSOLJ
TmzV472        981115.785  116p  Tmz.VSOLJ
TmzV472        990208.537  120p  Tmz.VSOLJ
TmzV472        990404.452  113p  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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