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[vsnet-obs 20082] New Takamizawa variable (TmzV323)

New Takamizawa variable (TmzV323)

   Kesao Takamizawa (Nagano, Japan) reports the discovery of a new variable
star (TmzV323).

TmzV323
= GSC5980.272 074320.16 -163101.4 (2000.0) 11.75 0
= USNO0675.04806643 074320.167 -163101.56 (2000.0) 10.7 12.1 *
= 074320.1 -163101 (2000.0) 1089 1.12 TYC5980.272.1 plx=-45.0(65.5) (0.11 0.24)
= IRAS07410-1623 074105.6 -162357 (1950.0)
    F12=1.00  F25=0.28  F60=0.40L F100=1.00L
    VAR=68 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
= 074321.4 -163109 (2000.0) IRAS07410-1623 1.000 0.267 0.400L 1.013L 68%
= 074321.4 -163109 (2000.0) SSC07410-1623 1.000 0.267 0.400L 1.013L
= 074317.9 -163000 (2000.0) M5(III)(Buscombe) - - -

  Takamizawa's comment:

  The star may be a semiregular variable with a range of 11.4-12.2p.

Photographic magnitude estimates by VSOLJ members

object         YYMMDD(UT)   mag  code
TmzV323        940314.505  116p  Tmz.VSOLJ
TmzV323        941111.738  119p  Tmz.VSOLJ
TmzV323        950203.546  115p  Tmz.VSOLJ
TmzV323        950927.799  118p  Tmz.VSOLJ
TmzV323        951118.744  115p  Tmz.VSOLJ
TmzV323        951222.685  119p  Tmz.VSOLJ
TmzV323        960211.515  118p  Tmz.VSOLJ
TmzV323        961021.776  120p  Tmz.VSOLJ
TmzV323        961206.707  121p  Tmz.VSOLJ
TmzV323        970103.622  120p  Tmz.VSOLJ
TmzV323        970227.485  115p  Tmz.VSOLJ
TmzV323        971013.791  114p  Tmz.VSOLJ
TmzV323        971103.802  117p  Tmz.VSOLJ
TmzV323        971204.703  118p  Tmz.VSOLJ
TmzV323        971224.641  117p  Tmz.VSOLJ
TmzV323        980121.556  118p  Tmz.VSOLJ
TmzV323        980217.505  115p  Tmz.VSOLJ
TmzV323        980325.461  116p  Tmz.VSOLJ
TmzV323        981115.744  121p  Tmz.VSOLJ
TmzV323        981212.628  122p  Tmz.VSOLJ
TmzV323        990208.557  122p  Tmz.VSOLJ
TmzV323        990404.438  119p  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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