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[vsnet-newvar 258] New Takamizawa variable (TmzV710)

New Takamizawa variable (TmzV710)

   Kesao Takamizawa (Nagano, Japan) reports the discovery of a new variable
star (TmzV710).

TmzV710
= GSC4264.895 222831.11 +602749.2 (2000.0) 11.94 6
= GSC4264.895 222831.15 +602749.2 (2000.0) 11.81 6
= USNO1500.09177845 222831.099 +602748.79 (2000.0) 11.2 15.5
= IRAS22267+6012 222643.7 +601226 (1950.0)
    F12=1.32  F25=0.91  F60=0.58L F100=6.92L
    VAR= 5 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
= 222831.3 +602747 (2000.0) IRAS22267+6012 1.357 0.902 0.548L 6.838L 5%
= 222831.3 +602747 (2000.0) SSC22267+6012 1.357 0.902 0.548L 6.838L
= 222834.9 +603040 (2000.0) DO41448

  Takamizawa's comment:

  The star may be a semiregular variable with a range of 12.0-12.9p.

object         YYYYMMDD(UT)   mag  code
TmzV710        19940903.562  120p  Tmz.VSOLJ
TmzV710        19970824.567  123p  Tmz.VSOLJ
TmzV710        19970827.540  124p  Tmz.VSOLJ
TmzV710        19971218.437  129p  Tmz.VSOLJ
TmzV710        19980823.562  122p  Tmz.VSOLJ
TmzV710        19980916.530  124p  Tmz.VSOLJ
TmzV710        19990709.574  123p  Tmz.VSOLJ
TmzV710        19990807.594  120p  Tmz.VSOLJ
TmzV710        19991226.462  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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