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[vsnet-obs 18261] New Takamizawa variable (TmzV106)

New Takamizawa variable (TmzV106)

   Kesao Takamizawa (Nagano, Japan) reports the discovery of a new variable
star (TmzV106).

TmzV106
= GSC5386.1721 064023.05 -125306.9 (2000.0) 14.21 0
= USNO0750.02533179 064023.066 -125307.42 (2000.0) 11.5 15.3
= IRAS06380-1250 063804.6 -125020 (1950.0)
    F12=0.36  F25=0.28  F60=0.40L F100=1.32L
    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
= 064023.2 -125310 (2000.0) IRAS06380-1250 0.354 0.268 0.400L 1.373L 0%
= 064023.2 -125310 (2000.0) SSC06380-1250 0.354 0.268 0.400L 1.373L

  Takamizawa's comment:

  The star may be a semiregular variable (SR) with a range of 13.0-14.4p.

Photographic magnitude estimates by VSOLJ members

object         YYMMDD(UT)   mag  code
TmzV106        940314.488  142p  Tmz.VSOLJ
TmzV106        940402.451  144p  Tmz.VSOLJ
TmzV106        941203.720  134p  Tmz.VSOLJ
TmzV106        950210.798  130p  Tmz.VSOLJ
TmzV106        951118.753  132p  Tmz.VSOLJ
TmzV106        951219.615  142p  Tmz.VSOLJ
TmzV106        960211.504  143p  Tmz.VSOLJ
TmzV106        961021.752  130p  Tmz.VSOLJ
TmzV106        961206.651  132p  Tmz.VSOLJ
TmzV106        970103.604  128p  Tmz.VSOLJ
TmzV106        970127.474  133p  Tmz.VSOLJ
TmzV106        971203.670  134p  Tmz.VSOLJ
TmzV106        971224.623  135p  Tmz.VSOLJ
TmzV106        980119.507  134p  Tmz.VSOLJ
TmzV106        980217.485  133p  Tmz.VSOLJ
TmzV106        980318.512  134p  Tmz.VSOLJ
TmzV106        981115.721  130p  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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