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[vsnet-obs 21579] New Takamizawa variable (TmzV415)

New Takamizawa variable (TmzV415)

   Kesao Takamizawa (Nagano, Japan) reports the discovery of a new variable
star (TmzV415).

TmzV415
= GSC5999.1041 080330.53 -180031.0 (2000.0) 12.46 0 N
= GSC5999.1041 080330.54 -180031.6 (2000.0) 12.16 0 N
= USNO0675.05719814 080330.506 -180031.18 (2000.0) 10.6 13.8
= IRAS08012-1752 080115.2 -175202 (1950.0)
    F12=0.83  F25=0.48  F60=0.40L F100=1.00L
    VAR= 0 LRS=-1
 possibly IIIa: variable star with more evolved O-rich c.s. shell
 or VIb: variable star with relatively hot dust close to
      the star and relatively cold dust at large distance
      may be O-rich
 or VII: variable star with more evolved C-rich circumstellar shell
= 080330.0 -180000 (2000.0) M4(III)(Buscombe) - - -
= 080330.2 -180031 (2000.0) IRAS08012-1752 0.839 0.469 0.400L 1.000L 0%
= 080330.2 -180031 (2000.0) SSC08012-1752 0.839 0.469 0.400L 1.000L

  Takamizawa's comment:

  The star may be a semiregular variable with a range of 11.7-13.0p.

object         YYMMDD(UT)   mag  code
TmzV415        941111.717  118p  Tmz.VSOLJ
TmzV415        950220.535  127p  Tmz.VSOLJ
TmzV415        951222.713  118p  Tmz.VSOLJ
TmzV415        960211.531  125p  Tmz.VSOLJ
TmzV415        961208.655  127p  Tmz.VSOLJ
TmzV415        970227.504  128p  Tmz.VSOLJ
TmzV415        971013.813  117p  Tmz.VSOLJ
TmzV415        971203.725  129p  Tmz.VSOLJ
TmzV415        971231.672  130p  Tmz.VSOLJ
TmzV415        981115.792  127p  Tmz.VSOLJ
TmzV415        990208.547  128p  Tmz.VSOLJ
TmzV415        990404.460  129p  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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