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[vsnet-newvar 368] New Takamizawa variable (TmzV738)

New Takamizawa variable (TmzV738)

   Kesao Takamizawa (Nagano, Japan) reports the discovery of a new variable
star (TmzV738).

TmzV738
= GSC7902.1497 183922.74 -382525.0 (2000.0) 10.60 6
= USNO0450.35320865 183922.716 -382525.34 (2000.0) 10.2 12.3 *
= IRAS18359-3828 183556.5 -382810 (1950.0)
    F12=0.91  F25=0.25L F60=0.40L F100=1.10L
    VAR=-1 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
= 183922.2 -382546 (2000.0) HD171983   Ma
= 183922.2 -382553 (2000.0) HD171983 +Ma(Michigan)
= 183922.5 -382526 (2000.0) IRAS18359-3828 0.949 0.258L 0.400L 1.056L -1%
= 183922.5 -382526 (2000.0) SSC18359-3828 0.949 0.258L 0.400L 1.056L
= 183923.4 -382523 (2000.0) FSC18359-3828 0.923 0.173 0.188L 1.046L
= 183922.8 -382525 (2000.0) 1042 1.66 TYC7902.1497.1 plx=-65.0(50.6) (0.07 0.35)
= 183922.8 -382524 (2000.0) 1051 1.32 TYC2-7902.1497.1 (10.65 0.05) (12.20 0.16)

  Takamizawa's comment:

  The star may be a semiregular variable with a range of 10.0-11.0p.

object         YYYYMMDD(UT)   mag  code
TmzV738        19940712.601  108p  Tmz.VSOLJ
TmzV738        19940810.523  107p  Tmz.VSOLJ
TmzV738        19950522.685  110p  Tmz.VSOLJ
TmzV738        19960619.642  107p  Tmz.VSOLJ
TmzV738        19960903.472  100p  Tmz.VSOLJ
TmzV738        19960903.476  105p  Tmz.VSOLJ
TmzV738        19970606.684  110p  Tmz.VSOLJ
TmzV738        19970706.594  107p  Tmz.VSOLJ
TmzV738        19970822.470  109p  Tmz.VSOLJ
TmzV738        19970919.377  106p  Tmz.VSOLJ
TmzV738        19980629.613  107p  Tmz.VSOLJ
TmzV738        19980912.436  106p  Tmz.VSOLJ
TmzV738        19990414.788  106p  Tmz.VSOLJ
TmzV738        19990511.719  105p  Tmz.VSOLJ
TmzV738        19990609.681  105p  Tmz.VSOLJ
TmzV738        19990614.616  101p  Tmz.VSOLJ
TmzV738        19990614.619  107p  Tmz.VSOLJ
TmzV738        19990706.622  107p  Tmz.VSOLJ
TmzV738        19990803.528  104p  Tmz.VSOLJ
TmzV738        20000406.803  103p  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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