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[vsnet-newvar 1113] New Takamizawa variable (TmzV807)



New Takamizawa variable (TmzV807)

   Kesao Takamizawa (Nagano, Japan) reports the discovery of a new variable
star (TmzV807).

TmzV807
= GSC5757.547 205245.93 -074538.1 (2000.0) 10.47 0
= GSC5757.547 205245.94 -074537.6 (2000.0) 10.93 0
= GSC5757.547 205245.96 -074538.1 (2000.0) 11.03 0
= USNO0750.20548741 205245.922 -074538.52 (2000.0)  9.2 11.8
= 2MASS 205245.960 -074538.52 (2000.0)  0.000  0.000  0.000
= 205245.3 -074540 (2000.0) IRAS20500-0757 6.653 2.760 0.522 1.000L 16%
= 205245.3 -074540 (2000.0) SSC20500-0757 6.653 2.760 0.522 1.000L
= 205245.7 -074537 (2000.0) FSC20500-0756 6.792 2.822 0.507 0.816L
= 205245.8 -074538 (2000.0) SAO144898 99.9 9.1 M8
= 205245.8 -074538 (2000.0) RAFGL5551S
= 205245.9 -074538 (2000.0) 958 1.26 TYC5757.547.1 plx=34.9(50.0) (0.04 0.08)
= 205245.9 -074537 (2000.0) 973 1.25 TYC2-5757.547.1 (9.86 0.04) (11.33 0.08)
= 205243.4 -074444 (2000.0) TMSS-10552
= 205242.0 -074359 (2000.0) (M4III)(Buscombe) V=9.42 B-V=1.65 U-B=1.36
= 205242.0 -074359 (2000.0) M8(III)(Buscombe) V=9.42 B-V=1.65 U-B=1.36

  Takamizawa's comment:

  The star may be a semiregular variable  with a range of 9.4-10.4p.

Photographic magnitude estimates by VSOLJ members

object         YYYYMMDD(UT)   mag  code
TmzV807        19940413.785   98p  Tmz.VSOLJ
TmzV807        19940512.748   97p  Tmz.VSOLJ
TmzV807        19940703.658   98p  Tmz.VSOLJ
TmzV807        19940803.581   99p  Tmz.VSOLJ
TmzV807        19940810.659  102p  Tmz.VSOLJ
TmzV807        19940930.532  103p  Tmz.VSOLJ
TmzV807        19941127.402  104p  Tmz.VSOLJ
TmzV807        19950311.825   99p  Tmz.VSOLJ
TmzV807        19950723.655   96p  Tmz.VSOLJ
TmzV807        19951020.441   99p  Tmz.VSOLJ
TmzV807        19960423.791  104p  Tmz.VSOLJ
TmzV807        19960815.567   96p  Tmz.VSOLJ
TmzV807        19961030.456   97p  Tmz.VSOLJ
TmzV807        19970706.678   94p  Tmz.VSOLJ
TmzV807        19971025.526   96p  Tmz.VSOLJ
TmzV807        19990708.663   96p  Tmz.VSOLJ
TmzV807        20011013.451   98p  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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