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[vsnet-obs 20920] New Takamizawa variable (TmzV374)

New Takamizawa variable (TmzV374)

   Kesao Takamizawa (Nagano, Japan) reports the discovery of a new variable
star (TmzV374).

TmzV374
= GSC6550.2846 073007.38 -291602.8 (2000.0) 13.53 0
= USNO0600.03669722 073007.400 -291602.58 (2000.0) 10.7 13.5
= IRAS07281-2909 072807.9 -290944 (1950.0)
    F12=0.63  F25=0.25  F60=0.40L F100=1.44L
    VAR= 0 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
= 073007.0 -291603 (2000.0) IRAS07281-2909 0.637 0.242 0.400L 1.465L 0%
= 073007.0 -291603 (2000.0) SSC07281-2909 0.637 0.242 0.400L 1.465L

  Takamizawa's comment:

  The star may be a semiregular variable with a range of 12.4-13.0p.

object         YYMMDD(UT)   mag  code
TmzV374        941111.731  127p  Tmz.VSOLJ
TmzV374        941203.698  130p  Tmz.VSOLJ
TmzV374        950203.535  129p  Tmz.VSOLJ
TmzV374        951222.694  125p  Tmz.VSOLJ
TmzV374        961021.768  126p  Tmz.VSOLJ
TmzV374        970103.631  128p  Tmz.VSOLJ
TmzV374        971013.798  127p  Tmz.VSOLJ
TmzV374        971103.810  127p  Tmz.VSOLJ
TmzV374        971204.695  124p  Tmz.VSOLJ
TmzV374        971224.633  125p  Tmz.VSOLJ
TmzV374        980121.549  128p  Tmz.VSOLJ
TmzV374        980217.497  126p  Tmz.VSOLJ
TmzV374        980325.454  125p  Tmz.VSOLJ
TmzV374        981115.737  126p  Tmz.VSOLJ
TmzV374        990404.438  125p  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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