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[vsnet-newvar 1338] New Takamizawa variable (TmzV939)

New Takamizawa variable (TmzV939)

   Kesao Takamizawa (Nagano, Japan) reports the discovery of a new variable
star (TmzV939).

TmzV939
= GSC4029.823 010055.78 +672042.0 (2000.0) 12.86 1
= USNO1500.01061907 010055.802 +672041.88 (2000.0) 11.6 18.3
= IRAS00576+6704 005740.4 +670424 (1950.0)
     F12=1.74  F25=0.48  F60=0.40L F100=2.09L
     VAR= 0 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
= 010054.0 +672100 (2000.0) C5,3(Buscombe) V=12.4 - -
= 010054.7 +672032 (2000.0) IRAS00576+6704 1.663 0.494 0.400L 2.119L 0%
= 010054.7 +672032 (2000.0) SSC00576+6704 1.663 0.494 0.400L 2.119L
= 010055.4 +672042 (2000.0) CS159 - 13.5 9.0 -
= 010055.6 +672043 (2000.0) MSX5C_G123.8483+04.4905 -24 -12 3 2 0 -3 V(%):-:-:0:-:-:-

  Takamizawa's comment:

  The star may be a semiregular variable with a range of 12.4-13.5p.

Photographic magnitude estimates by VSOLJ members

object         YYYYMMDD(UT)   mag  code
TmzV939        19950120.474  130p  Tmz.VSOLJ
TmzV939        19970517.718  133p  Tmz.VSOLJ
TmzV939        19970703.727  130p  Tmz.VSOLJ
TmzV939        19980116.397  128p  Tmz.VSOLJ
TmzV939        19980823.617  124p  Tmz.VSOLJ
TmzV939        19981011.414  131p  Tmz.VSOLJ
TmzV939        19990105.447  131p  Tmz.VSOLJ
TmzV939        20000529.751  135p  Tmz.VSOLJ
TmzV939        20001216.393  130p  Tmz.VSOLJ
TmzV939        20010520.749  125p  Tmz.VSOLJ
TmzV939        20011116.528  129p  Tmz.VSOLJ

Observer's code:
  Tmz: K.Takamizawa (Saku-machi,Nagano,Japan)
       SASS (Saku All Sky Survey)
       Inst.: 10cmR F4 twin patrol cameras and 25cm F2.8
       Baker-Schmidt camera T-Max400 120
       Comparison stars mag.:GSC

Relayed from Kesao Takamizawa <k-takamizawa@nifty.ne.jp>

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