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[vsnet-obs 18790] New Takamizawa variable (TmzV147)

New Takamizawa variable (TmzV147)

   Kesao Takamizawa (Nagano, Japan) reports the discovery of a new variable
star (TmzV147).

TmzV147
= GSC2900.1811 051020.28 +394922.5 (2000.0) 12.05 1
= USNO1275.04459117 051020.293 +394922.43 (2000.0) 11.4 17.7
= IRAS05068+3945 050652.2 +394539 (1950.0)
    F12=3.31  F25=1.00  F60=0.48L F100=1.74L
    VAR=23 LRS=-1
 possibly I: oxygen-rich non-variable star without 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
= 051020.1 +394921 (2000.0) IRAS05068+3945 3.455 0.979 0.464L 1.658L 23%
= 051020.1 +394921 (2000.0) SSC05068+3945 3.455 0.979 0.464L 1.658L
= 051020.2 +394920 (2000.0) CS867 - 10.8 9.8 -

  Takamizawa's comment:

  The star may be a semiregular variable (SR) with a range of 11.7-13.2p.

Photographic magnitude estimates by VSOLJ members

object         YYMMDD(UT)   mag  code
TmzV147        940302.540  121p  Tmz.VSOLJ
TmzV147        940810.775  131p  Tmz.VSOLJ
TmzV147        941108.597  132p  Tmz.VSOLJ
TmzV147        941224.488  131p  Tmz.VSOLJ
TmzV147        950320.515  121p  Tmz.VSOLJ
TmzV147        950823.769  120p  Tmz.VSOLJ
TmzV147        951128.608  121p  Tmz.VSOLJ
TmzV147        960109.422  128p  Tmz.VSOLJ
TmzV147        960922.747  118p  Tmz.VSOLJ
TmzV147        961015.731  117p  Tmz.VSOLJ
TmzV147        961203.547  121p  Tmz.VSOLJ
TmzV147        970802.749  129p  Tmz.VSOLJ
TmzV147        971123.615  130p  Tmz.VSOLJ
TmzV147        980318.465  117p  Tmz.VSOLJ
TmzV147        980820.731  117p  Tmz.VSOLJ
TmzV147        981024.609  125p  Tmz.VSOLJ
TmzV147        981218.596  126p  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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