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[vsnet-obs 23327] New Takamizawa variable (TmzV520)

New Takamizawa variable (TmzV520)

   Kesao Takamizawa (Nagano, Japan) reports the discovery of a new variable
star (TmzV520).

TmzV520
= GSC6590.111 090653.89 -244004.2 (2000.0) 10.86 0
= USNO0600.07213977 090653.876 -244004.24 (2000.0)  8.6 11.5
= IRAS09046-2427 090441.4 -242758 (1950.0)
    F12=0.83  F25=0.21  F60=0.40L F100=1.00L
    VAR= 9 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
= 090653.5 -244003 (2000.0) CPD-24.3973 9.9
= 090654.2 -243957 (2000.0) CD-24.7720 8.9
= 090653.8 -244003 (2000.0) SAO176975 99.9 9.3 M
= 090654.0 -244004 (2000.0) IRAS09046-2427 0.826 0.199 0.400L 1.042L 9%
= 090654.0 -244004 (2000.0) SSC09046-2427 0.826 0.199 0.400L 1.042L
= 090654.0 -244005 (2000.0) FSC09046-2427 0.824 0.227 0.225L 1.427L
= 090653.8 -244004 (2000.0) 976 1.81 TYC6590.111.1 plx=-21.8(18.0) (0.02 0.09)

  Takamizawa's comment:

  The star may be a semiregular variable with a range of 10.1-10.6p.

object         YYMMDD(UT)   mag  code
TmzV520        950222.514  104p  Tmz.VSOLJ
TmzV520        950401.496  101p  Tmz.VSOLJ
TmzV520        980102.696  103p  Tmz.VSOLJ
TmzV520        980325.505  104p  Tmz.VSOLJ
TmzV520        980325.505  106p  Tmz.VSOLJ
TmzV520        981117.801  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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