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[vsnet-obs 21634] New Takamizawa variable (TmzV432)

New Takamizawa variable (TmzV432)

   Kesao Takamizawa (Nagano, Japan) reports the discovery of a new variable
star (TmzV432).

TmzV432
= GSC6567.1158 080904.76 -282905.7 (2000.0) 11.90 6 N
= USNO0600.05432364 080904.692 -282906.73 (2000.0) 10.7 12.7
= USNO0600.05432431 080904.761 -282905.72 (2000.0) 11.9 99.9
= IRAS08070-2820 080701.4 -282011 (1950.0)
    F12=1.58  F25=0.83  F60=0.40L F100=5.75L
    VAR=35 LRS=-1
 possibly IIIa: variable star with more evolved O-rich c.s. shell
 or VIb: variable star with relatively hot dust close to
      the star and relatively cold dust at large distance
      may be O-rich
 or VII: variable star with more evolved C-rich circumstellar shell
= 080904.4 -282902 (2000.0) IRAS08070-2820 1.598 0.830 0.400L 5.840L 35%
= 080904.4 -282902 (2000.0) SSC08070-2820 1.598 0.830 0.400L 5.840L
= 080903.4 -282853 (2000.0) CD-28.5528 10.0
= 080905.9 -282759 (2000.0) M6(III)(Buscombe) - - -

  Takamizawa's comment:

  The star may be a semiregular variable with a range of 12.0-12.9p.

object         YYMMDD(UT)   mag  code
TmzV432        941111.724  125p  Tmz.VSOLJ
TmzV432        951222.701  125p  Tmz.VSOLJ
TmzV432        961021.828  126p  Tmz.VSOLJ
TmzV432        970227.495  128p  Tmz.VSOLJ
TmzV432        971013.806  129p  Tmz.VSOLJ
TmzV432        971103.834  122p  Tmz.VSOLJ
TmzV432        971203.741  122p  Tmz.VSOLJ
TmzV432        971231.679  125p  Tmz.VSOLJ
TmzV432        980322.516  125p  Tmz.VSOLJ
TmzV432        981115.785  120p  Tmz.VSOLJ
TmzV432        990208.537  122p  Tmz.VSOLJ
TmzV432        990404.452  123p  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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