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[vsnet-newvar 380] New Takamizawa variable (TmzV744)

New Takamizawa variable (TmzV744)

   Kesao Takamizawa (Nagano, Japan) reports the discovery of a new variable
star (TmzV744).

TmzV744
(No USNO identification, Takamizawa's position: 204653.8 +055127 2000)

= IRAS20444+0540 204425.4 +054028 (1950.0)
    F12=33.10  F25=27.53  F60=6.31  F100=3.31 
    VAR=99 LRS=29
    blue, 10micron (silicate) emission, strength=9
    IIIa: variable star with more evolved O-rich c.s. shell
= 204653.3 +055131 (2000.0) EIC837
= 204654.0 +055130 (2000.0) IRAS20444+0540 34.150 28.530 6.433 3.176 99% 2(LRS)
= 204654.0 +055130 (2000.0) SSC20444+0540 34.150 28.530 6.433 3.176
= 204654.2 +055131 (2000.0) FSC20444+0540 47.260 35.510 5.823 2.717

  Takamizawa's comment:
  The star is visible at mag~17.5 on Real-Sky CD.
  The star may be a Mira-type variable with a range of 13.9-<15.0p.

object         YYYYMMDD(UT)   mag  code
TmzV744        19940414.731  <144p  Tmz.VSOLJ
TmzV744        19940803.573  <147p  Tmz.VSOLJ
TmzV744        19940810.668  <147p  Tmz.VSOLJ
TmzV744        19940930.524  <150p  Tmz.VSOLJ
TmzV744        19941102.861  148p  Tmz.VSOLJ
TmzV744        19941127.412  147p  Tmz.VSOLJ
TmzV744        19941220.385  139p  Tmz.VSOLJ
TmzV744        19950306.828  140p  Tmz.VSOLJ
TmzV744        19950401.788  <147p  Tmz.VSOLJ
TmzV744        19950723.647  <147p  Tmz.VSOLJ
TmzV744        19951014.506  <147p  Tmz.VSOLJ
TmzV744        19960318.799  <147p  Tmz.VSOLJ
TmzV744        19960716.701  <147p  Tmz.VSOLJ
TmzV744        19961030.464  <147p  Tmz.VSOLJ
TmzV744        19970309.826  <144p  Tmz.VSOLJ
TmzV744        19970901.582  <147p  Tmz.VSOLJ
TmzV744        19971025.533  <147p  Tmz.VSOLJ
TmzV744        19980402.785  <147p  Tmz.VSOLJ
TmzV744        19990708.626  <147p  Tmz.VSOLJ
TmzV744        20000314.817  <147p  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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