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[vsnet-obs 18853] New Takamizawa variable (TmzV153)

New Takamizawa variable (TmzV153)

   Kesao Takamizawa (Nagano, Japan) reports the discovery of a new variable
star (TmzV153).

TmzV153
= GSC2393.1006 051055.36 +331807.3 (2000.0) 11.86 1 N
= GSC2393.1006 051055.38 +331805.2 (2000.0) 11.74 1 N
= USNO1200.02983239 051055.371 +331806.31 (2000.0) 11.8 99.9
= IRAS05076+3314 050738.1 +331425 (1950.0)
    F12=0.76  F25=0.33  F60=0.40L F100=2.09L
    VAR= 2 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
= 051054.5 +331804 (2000.0) IRAS05076+3314 0.758 0.324 0.400L 2.014L 2%
= 051054.5 +331804 (2000.0) SSC05076+3314 0.758 0.324 0.400L 2.014L

  Takamizawa's comment:

  The star may be a semiregular variable (SR) with a range of 12.2-13.3p.

Photographic magnitude estimates by VSOLJ members

object         YYMMDD(UT)   mag  code
TmzV153        940302.536  125p  Tmz.VSOLJ
TmzV153        940329.467  124p  Tmz.VSOLJ
TmzV153        940810.767  131p  Tmz.VSOLJ
TmzV153        941108.608  125p  Tmz.VSOLJ
TmzV153        950320.515  123p  Tmz.VSOLJ
TmzV153        950823.769  123p  Tmz.VSOLJ
TmzV153        950927.717  123p  Tmz.VSOLJ
TmzV153        951128.608  130p  Tmz.VSOLJ
TmzV153        960109.422  129p  Tmz.VSOLJ
TmzV153        960922.747  122p  Tmz.VSOLJ
TmzV153        961015.731  123p  Tmz.VSOLJ
TmzV153        961203.547  123p  Tmz.VSOLJ
TmzV153        970802.749  125p  Tmz.VSOLJ
TmzV153        971123.615  131p  Tmz.VSOLJ
TmzV153        980318.474  133p  Tmz.VSOLJ
TmzV153        980820.731  124p  Tmz.VSOLJ
TmzV153        981024.609  123p  Tmz.VSOLJ
TmzV153        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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