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[vsnet-obs 21584] New Takamizawa variable (TmzV420)

New Takamizawa variable (TmzV420)

   Kesao Takamizawa (Nagano, Japan) reports the discovery of a new variable
star (TmzV420).

TmzV420
= GSC6573.3781 082502.56 -252200.1 (2000.0) 12.72 0
= USNO0600.06103999 082502.544 -252200.54 (2000.0)  9.4 13.8
= IRAS08228-2512 082253.4 -251207 (1950.0)
    F12=0.58  F25=0.25L F60=0.40L F100=1.00L
    VAR=-1 LRS=-1
 possibly I: oxygen-rich non-variable star without circumstellar shell
 or 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
= 082500.1 -252148 (2000.0) CS2197 - 9 - CD-24.6912
= 082501.5 -252155 (2000.0) IRAS08228-2512 0.565 0.250L 0.400L 1.000L -1%
= 082501.5 -252155 (2000.0) SSC08228-2512 0.565 0.250L 0.400L 1.000L
= 082459.8 -252153 (2000.0) CD-24.6912 10.0
= 082459.1 -252154 (2000.0) UBV_ 11.29 2.52 - - - - - N=1 Nm=1 -
= 082500.0 -252100 (2000.0) C(Buscombe) - - -

  Takamizawa's comment:

  The star may be a semiregular variable with a range of 11.6-12.4p.

object         YYMMDD(UT)   mag  code
TmzV420        941111.724  121p  Tmz.VSOLJ
TmzV420        950220.535  124p  Tmz.VSOLJ
TmzV420        951118.735  117p  Tmz.VSOLJ
TmzV420        951222.713  116p  Tmz.VSOLJ
TmzV420        960211.540  117p  Tmz.VSOLJ
TmzV420        961021.828  122p  Tmz.VSOLJ
TmzV420        961208.655  119p  Tmz.VSOLJ
TmzV420        970227.495  123p  Tmz.VSOLJ
TmzV420        971013.806  120p  Tmz.VSOLJ
TmzV420        971203.725  119p  Tmz.VSOLJ
TmzV420        971231.672  117p  Tmz.VSOLJ
TmzV420        981115.785  116p  Tmz.VSOLJ
TmzV420        990208.537  121p  Tmz.VSOLJ
TmzV420        990404.452  119p  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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