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[vsnet-obs 19063] New Takamizawa variable (TmzV199)

New Takamizawa variable (TmzV199)

   Kesao Takamizawa (Nagano, Japan) reports the discovery of a new variable
star (TmzV199).

TmzV199
= USNO1425.05097922 041548.692 +541939.79 (2000.0) 14.3 16.3
= IRAS04118+5412 041151.8 +541230 (1950.0)
    F12=0.91  F25=0.25L F60=0.40L F100=2.29L
    VAR=-1 LRS=-1
 possibly I: oxygen-rich non-variable star without circumstellar shell
 or VIa: non-variable star with relatively cold dust at large
      distance, may be carbon-rich
= 041541.9 +541859 (2000.0) C(Buscombe) V=14.3 - -
= 041546.5 +541952 (2000.0) CS638 - - 13.0 -
= 041548.5 +541957 (2000.0) IRAS04118+5412 0.943 0.250L 0.400L 2.326L -1%
= 041548.5 +541957 (2000.0) SSC04118+5412 0.943 0.250L 0.400L 2.326L

  Takamizawa's comment:

  The star may be a semiregular variable (SR) with  a renge of 14.0-14.9p.

Photographic magnitude estimates by VSOLJ members

object         YYMMDD(UT)   mag  code
TmzV199        940910.701  147p  Tmz.VSOLJ
TmzV199        941108.549  144p  Tmz.VSOLJ
TmzV199        950823.720  146p  Tmz.VSOLJ
TmzV199        951127.554  149p  Tmz.VSOLJ
TmzV199        970714.728  142p  Tmz.VSOLJ
TmzV199        970802.707  145p  Tmz.VSOLJ
TmzV199        971010.696  140p  Tmz.VSOLJ
TmzV199        971123.526  143p  Tmz.VSOLJ
TmzV199        971221.456  145p  Tmz.VSOLJ
TmzV199        980820.706  142p  Tmz.VSOLJ
TmzV199        990109.498  140p  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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