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[vsnet-obs 21789] New Takamizawa variable (TmzV454)

New Takamizawa variable (TmzV454)

   Kesao Takamizawa (Nagano, Japan) reports the discovery of a new variable
star (TmzV454).

TmzV454
= GSC7125.1324 080703.44 -323844.4 (2000.0) 12.52 0
= GSC7125.1324 080703.47 -323844.8 (2000.0) 11.31 6
= USNO0525.06086979 080703.479 -323845.07 (2000.0)  9.8 11.5
= IRAS08051-3230 080506.2 -323000 (1950.0)
    F12=2.09  F25=0.83  F60=0.40L F100=10.96L
    VAR=10 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
= 080703.5 -323843 (2000.0) IRAS08051-3230 2.163 0.874 0.400L 11.350L 10%
= 080703.5 -323843 (2000.0) SSC08051-3230 2.163 0.874 0.400L 11.350L

  Takamizawa's comment:

  The star may be a semiregular variable with a range of 11.1-12.0p.

object         YYMMDD(UT)   mag  code
TmzV454        941111.724  111p  Tmz.VSOLJ
TmzV454        950220.528  117p  Tmz.VSOLJ
TmzV454        951118.735  119p  Tmz.VSOLJ
TmzV454        951222.701  118p  Tmz.VSOLJ
TmzV454        960211.540  119p  Tmz.VSOLJ
TmzV454        961021.828  116p  Tmz.VSOLJ
TmzV454        970227.495  119p  Tmz.VSOLJ
TmzV454        971013.806  117p  Tmz.VSOLJ
TmzV454        971103.834  119p  Tmz.VSOLJ
TmzV454        971203.741  119p  Tmz.VSOLJ
TmzV454        971231.679  115p  Tmz.VSOLJ
TmzV454        980322.516  120p  Tmz.VSOLJ
TmzV454        981115.785  117p  Tmz.VSOLJ
TmzV454        990208.537  119p  Tmz.VSOLJ
TmzV454        990404.452  116p  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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