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[vsnet-obs 18233] New Takamizawa variable (TmzV97)

New Takamizawa variable (TmzV97)

   Kesao Takamizawa (Nagano, Japan) reports the discovery of a new variable
star (TmzV97).

TmzV97
= USNO0675.02160614 063344.610 -194249.82 (2000.0) 15.0 14.5
= IRAS06315-1940 063135.4 -194029 (1950.0)
    F12=1.10  F25=0.52  F60=0.40L F100=1.00L
    VAR=23 LRS=-1
 possibly II: variable star with 'young' O-rich circumstellar shell
 or VII: variable star with more evolved C-rich circumstellar shell
 or VIa: non-variable star with relatively cold dust at large
      distance, may be carbon-rich
= 063345.4 -194251 (2000.0) IRAS06315-1940 1.058 0.520 0.400L 1.000L 23%
= 063345.4 -194251 (2000.0) SSC06315-1940 1.058 0.520 0.400L 1.000L
= 063345.5 -194252 (2000.0) FSC06315-1940 0.998 0.498 0.225L 1.340L

   Takamizawa's comment:

  The star may be a semiregular variable (SR) with a range of 14.6-<15.2p.

Photographic magnitude estimates by VSOLJ members

object         YYMMDD(UT)   mag  code
TmzV97         940331.476  <140p  Tmz.VSOLJ
TmzV97         941127.608  149p  Tmz.VSOLJ
TmzV97         950203.511  151p  Tmz.VSOLJ
TmzV97         950219.442  152p  Tmz.VSOLJ
TmzV97         951021.750  146p  Tmz.VSOLJ
TmzV97         960111.501  152p  Tmz.VSOLJ
TmzV97         961206.611  150p  Tmz.VSOLJ
TmzV97         971103.759  152p  Tmz.VSOLJ
TmzV97         981126.749  <152p  Tmz.VSOLJ

Observer: 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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