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[vsnet-obs 21657] New Takamizawa variable (TmzV438)

New Takamizawa variable (TmzV438)

   Kesao Takamizawa (Nagano, Japan) reports the discovery of a new variable
star (TmzV438).

TmzV438
= USNO0525.07053994 082310.253 -331212.21 (2000.0) 12.5 19.8
= IRAS08211-3302 082111.4 -330226 (1950.0)
    F12=33.10  F25=17.37  F60=2.75  F100=2.09 
    VAR=99 LRS=29
    blue, 10micron (silicate) emission, strength=9
    IIIa: variable star with more evolved O-rich c.s. shell
= 082309.6 -331208 (2000.0) IRAS08211-3302 33.160 17.980 2.867 2.012 99% 4(LRS)
= 082309.6 -331208 (2000.0) SSC08211-3302 33.160 17.980 2.867 2.012

  Takamizawa's comment:

  The star may be a Mira-type variable with a range of 12.0-<14.5p,
  and a period of about 447days.

object         YYMMDD(UT)   mag  code
TmzV438        941111.724  <140p  Tmz.VSOLJ
TmzV438        950220.528  <145p  Tmz.VSOLJ
TmzV438        951118.735  <135p  Tmz.VSOLJ
TmzV438        951222.701  <140p  Tmz.VSOLJ
TmzV438        960211.540  <140p  Tmz.VSOLJ
TmzV438        961021.828  123p  Tmz.VSOLJ
TmzV438        970227.495  <140p  Tmz.VSOLJ
TmzV438        971013.806  <135p  Tmz.VSOLJ
TmzV438        971103.834  145p  Tmz.VSOLJ
TmzV438        971203.741  130p  Tmz.VSOLJ
TmzV438        971231.679  120p  Tmz.VSOLJ
TmzV438        980322.516  127p  Tmz.VSOLJ
TmzV438        981115.785  <140p  Tmz.VSOLJ
TmzV438        990208.537  140p  Tmz.VSOLJ
TmzV438        990404.452  131p  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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