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[vsnet-obs 20230] New Takamizawa variable (TmzV339)

New Takamizawa variable (TmzV339)

   Kesao Takamizawa (Nagano, Japan) reports the discovery of a new variable
star (TmzV339).

TmzV339
= GSC6546.2505 072950.75 -272814.4 (2000.0) 12.77 0
= GSC6546.2505 072950.79 -272813.5 (2000.0) 12.76 0
= GSC6546.2505 072950.84 -272814.0 (2000.0) 13.01 0
= GSC6546.2505 072950.92 -272813.8 (2000.0) 13.20 0 N
= USNO0600.03658414 072950.787 -272813.81 (2000.0) 10.7 12.6
= IRAS07278-2721 072749.2 -272157 (1950.0)
    F12=0.40  F25=0.25L F60=0.40L F100=2.09L
    VAR=-1 LRS=-1
= 072950.8 -272815 (2000.0) IRAS07278-2721 0.388 0.250L 0.400L 2.037L -1%
= 072950.8 -272815 (2000.0) SSC07278-2721 0.388 0.250L 0.400L 2.037L
= 072948.0 -272700 (2000.0) M6(III)(Buscombe) - - -

  Takamizawa's comment:

  The star may be an irregular variable with a range of 12.0-12.8p.

Photographic magnitude estimates by VSOLJ members

object         YYMMDD(UT)   mag  code
TmzV339        940314.501  128p  Tmz.VSOLJ
TmzV339        941111.731  122p  Tmz.VSOLJ
TmzV339        950203.546  123p  Tmz.VSOLJ
TmzV339        950927.799  122p  Tmz.VSOLJ
TmzV339        951118.744  123p  Tmz.VSOLJ
TmzV339        951222.685  123p  Tmz.VSOLJ
TmzV339        961021.768  121p  Tmz.VSOLJ
TmzV339        961206.707  123p  Tmz.VSOLJ
TmzV339        970103.622  125p  Tmz.VSOLJ
TmzV339        970227.485  127p  Tmz.VSOLJ
TmzV339        971013.798  122p  Tmz.VSOLJ
TmzV339        971103.802  123p  Tmz.VSOLJ
TmzV339        971204.695  120p  Tmz.VSOLJ
TmzV339        971224.633  123p  Tmz.VSOLJ
TmzV339        980121.549  120p  Tmz.VSOLJ
TmzV339        980217.497  124p  Tmz.VSOLJ
TmzV339        980325.453  120p  Tmz.VSOLJ
TmzV339        981115.737  123p  Tmz.VSOLJ
TmzV339        981212.628  122p  Tmz.VSOLJ
TmzV339        990208.557  123p  Tmz.VSOLJ
TmzV339        990404.438  121p  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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