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[vsnet-obs 20664] New Takamizawa variable (TmzV371)

New Takamizawa variable (TmzV371)

   Kesao Takamizawa (Nagano, Japan) reports the discovery of a new variable
star (TmzV371).

TmzV371
= USNO0525.05038393 074338.117 -315321.77 (2000.0) 10.6 14.0
= IRAS07416-3146 074141.9 -314608 (1950.0)
    F12=2.51  F25=1.10  F60=0.40L F100=9.12L
    VAR=60 LRS=-1
 possibly II: variable star with 'young' O-rich circumstellar shell
 or VII: variable star with more evolved C-rich circumstellar shell
= 074338.2 -315321 (2000.0) IRAS07416-3146 2.622 1.090 0.400L 9.391L 60%
= 074338.2 -315321 (2000.0) SSC07416-3146 2.622 1.090 0.400L 9.391L
= 074330.0 -315259 (2000.0) M8(III)(Buscombe) - - -

  Takamizawa's comment:

  The star may be a Mira-type variable with a range of 12.5-<15.1p.

Photographic magnitude estimates by VSOLJ members

object         YYMMDD(UT)   mag  code
TmzV371        941111.731  <148p  Tmz.VSOLJ
TmzV371        941203.698  <151p  Tmz.VSOLJ
TmzV371        950203.535  137p  Tmz.VSOLJ
TmzV371        951222.694  149p  Tmz.VSOLJ
TmzV371        961021.768  <148p  Tmz.VSOLJ
TmzV371        970103.631  136p  Tmz.VSOLJ
TmzV371        971013.798  <148p  Tmz.VSOLJ
TmzV371        971103.810  151p  Tmz.VSOLJ
TmzV371        971204.695  150p  Tmz.VSOLJ
TmzV371        971224.633  135p  Tmz.VSOLJ
TmzV371        980121.549  125p  Tmz.VSOLJ
TmzV371        980217.497  128p  Tmz.VSOLJ
TmzV371        980325.454  147p  Tmz.VSOLJ
TmzV371        981115.737  <150p  Tmz.VSOLJ
TmzV371        990404.438  <148p  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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