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[vsnet-newvar 370] New Takamizawa variable (TmzV739)

New Takamizawa variable (TmzV739)

   Kesao Takamizawa (Nagano, Japan) reports the discovery of a new variable
star (TmzV739).

TmzV739
= GSC7903.2743 180613.63 -401506.6 (2000.0) 12.27 6 N
= USNO0450.32765358 180613.617 -401506.60 (2000.0) 10.3 13.5 *
= IRAS18027-4015 180242.9 -401528 (1950.0)
    F12=3.98  F25=2.09  F60=0.48L F100=1.90L
    VAR=17 LRS=-1
 possibly IIIa: variable star with more evolved O-rich c.s. shell
 or VII: variable star with more evolved C-rich circumstellar shell
= 180613.1 -401508 (2000.0) IRAS18027-4015 3.952 2.137 0.469L 1.972L 17%
= 180613.1 -401508 (2000.0) SSC18027-4015 3.952 2.137 0.469L 1.972L

  Takamizawa's comment:

  The star may be a semiregular variable with a range of 12.3-<13.0p.

object         YYYYMMDD(UT)   mag  code
TmzV739        19940712.601  126p  Tmz.VSOLJ
TmzV739        19940810.523  125p  Tmz.VSOLJ
TmzV739        19950522.685  124p  Tmz.VSOLJ
TmzV739        19960619.642  126p  Tmz.VSOLJ
TmzV739        19960903.472  <125p  Tmz.VSOLJ
TmzV739        19970606.684  128p  Tmz.VSOLJ
TmzV739        19970706.594  127p  Tmz.VSOLJ
TmzV739        19970822.470  130p  Tmz.VSOLJ
TmzV739        19970919.377  125p  Tmz.VSOLJ
TmzV739        19980629.613  127p  Tmz.VSOLJ
TmzV739        19980912.436  123p  Tmz.VSOLJ
TmzV739        19990414.788  129p  Tmz.VSOLJ
TmzV739        19990511.719  129p  Tmz.VSOLJ
TmzV739        19990609.681  127p  Tmz.VSOLJ
TmzV739        19990614.616  127p  Tmz.VSOLJ
TmzV739        19990706.622  129p  Tmz.VSOLJ
TmzV739        19990803.528  <130p  Tmz.VSOLJ
TmzV739        20000406.803  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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