[vsnet-obs 20663] New Takamizawa variable (TmzV370)

[Taichi Kato <tkato>]

New Takamizawa variable (TmzV370)

   Kesao Takamizawa (Nagano, Japan) reports the discovery of a new variable
star (TmzV370).

TmzV370
= GSC7119.1362 075238.50 -300704.8 (2000.0) 13.81 0 N
= GSC7119.1362 075238.55 -300704.5 (2000.0) 12.31 6
= USNO0525.05406331 075238.528 -300704.87 (2000.0) 10.7 13.4 *
= IRAS07506-2959 075039.0 -295914 (1950.0)
    F12=1.44  F25=0.44  F60=0.40L F100=2.29L
    VAR= 8 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
= 075238.5 -300703 (2000.0) IRAS07506-2959 1.419 0.430 0.400L 2.331L 8%
= 075238.5 -300703 (2000.0) SSC07506-2959 1.419 0.430 0.400L 2.331L
= 075236.0 -300600 (2000.0) M6(III)(Buscombe) - - -

  Takamizawa's comment:

  The star may be an irregular variable with a range of 12.6-13.4p.

Photographic magnitude estimates by VSOLJ members

object         YYMMDD(UT)   mag  code
TmzV370        941111.731  127p  Tmz.VSOLJ
TmzV370        941203.698  128p  Tmz.VSOLJ
TmzV370        950203.535  129p  Tmz.VSOLJ
TmzV370        951222.694  128p  Tmz.VSOLJ
TmzV370        961021.768  128p  Tmz.VSOLJ
TmzV370        970103.631  134p  Tmz.VSOLJ
TmzV370        971013.798  127p  Tmz.VSOLJ
TmzV370        971103.810  127p  Tmz.VSOLJ
TmzV370        971204.695  130p  Tmz.VSOLJ
TmzV370        971224.633  126p  Tmz.VSOLJ
TmzV370        980121.549  126p  Tmz.VSOLJ
TmzV370        980217.497  129p  Tmz.VSOLJ
TmzV370        980325.454  129p  Tmz.VSOLJ
TmzV370        981115.737  131p  Tmz.VSOLJ
TmzV370        990404.438  130p  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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