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[vsnet-newvar 1116] New Takamizawa variable (TmzV810)

New Takamizawa variable (TmzV810)

   Kesao Takamizawa (Nagano, Japan) reports the discovery of a new variable
star (TmzV810).

TmzV810
= GSC5759.2122 203912.41 -092309.3 (2000.0) 11.68 0
= USNO0750.20355562 203912.397 -092309.26 (2000.0)  8.5 11.3
= 2MASS 203912.408 -092310.32 (2000.0)  0.000  0.000  0.000
= IRAS20365-0933 203630.3 -093347 (1950.0)
     F12=8.31  F25=3.02  F60=0.48  F100=1.00L
     VAR=43 LRS=-1
     II: variable star with 'young' O-rich circumstellar shell
= 203912.6 -092320 (2000.0) SD-09.5533 10.
= 203912.1 -092310 (2000.0) FSC20364-0933 8.260 2.886 0.419 0.647L
= 203912.5 -092310 (2000.0) IRAS20365-0933 8.313 3.010 0.483 1.000L 43%
= 203912.5 -092310 (2000.0) SSC20365-0933 8.313 3.010 0.483 1.000L
= 203912.3 -092309 (2000.0) 1049 1.40 TYC5759.2122.1 plx=-27.5(45.1) (0.09  0.27)
= 203912.3 -092309 (2000.0) 1047 1.36 TYC2-5759.2122.1 (10.62 0.06) (12.21 0.19)

  Takamizawa's comment:

  The star may be a semiregular variable  with a range of 10.2-10.9p.

Photographic magnitude estimates by VSOLJ members

object         YYYYMMDD(UT)   mag  code
TmzV810        19940413.785  108p  Tmz.VSOLJ
TmzV810        19940512.748  107p  Tmz.VSOLJ
TmzV810        19940703.658  106p  Tmz.VSOLJ
TmzV810        19940803.581  104p  Tmz.VSOLJ
TmzV810        19940810.659  105p  Tmz.VSOLJ
TmzV810        19940930.532  106p  Tmz.VSOLJ
TmzV810        19941127.402  107p  Tmz.VSOLJ
TmzV810        19950311.825  103p  Tmz.VSOLJ
TmzV810        19950723.655  104p  Tmz.VSOLJ
TmzV810        19951020.441  102p  Tmz.VSOLJ
TmzV810        19960423.791  107p  Tmz.VSOLJ
TmzV810        19960815.567  107p  Tmz.VSOLJ
TmzV810        19961030.456  109p  Tmz.VSOLJ
TmzV810        19970706.678  105p  Tmz.VSOLJ
TmzV810        19971025.526  106p  Tmz.VSOLJ
TmzV810        19990708.663  102p  Tmz.VSOLJ
TmzV810        20011013.451  106p  Tmz.VSOLJ

Observer's code:
  Tmz: K.Takamizawa (Saku-machi,Nagano,Japan)
       SASS (Saku All Sky Survey)
       Inst.: 10cmR F4 twin patrol cameras and 25cm F2.8
       Baker-Schmidt camera T-Max400 120
       Comparison stars mag.:GSC

Relayed from Kesao Takamizawa <k-takamizawa@nifty.ne.jp>

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