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[vsnet-newvar 1330] New Takamizawa variable (TmzV931)

New Takamizawa variable (TmzV931)

   Kesao Takamizawa (Nagano, Japan) reports the discovery of a new variable
star (TmzV931).

TmzV931
= GSC4029.1082 010625.02 +654802.1 (2000.0) 11.87 1
= USNO1500.01144847 010625.000 +654802.27 (2000.0) 11.1 15.7
= IRAS01031+6531 010309.9 +653157 (1950.0)
     F12=7.58  F25=2.75  F60=0.44  F100=14.45L
     VAR= 4 LRS= 1
     low S/N blue
     II: variable star with 'young' O-rich circumstellar shell
= 010624.7 +654759 (2000.0) IRAS01031+6531 7.637 2.853 0.425 14.930L 4% 2(LRS)
= 010624.7 +654759 (2000.0) SSC01031+6531 7.637 2.853 0.425 14.930L
= 010625.3 +654758 (2000.0) MSX5C_G124.4687+02.9727 17 15 10 6 4 3 V(%):-:-:0:1:1:-
= 010633.6 +654808 (2000.0) DO24036
= 010628.9 +654744 (2000.0) RAFGL154
= 010628.9 +654744 (2000.0) TMSS+70017

  Takamizawa's comment:

  The star may be a semiregular variable with a range of 11.8-12.6p.

Photographic magnitude estimates by VSOLJ members

object         YYYYMMDD(UT)   mag  code
TmzV931        19950120.474  123p  Tmz.VSOLJ
TmzV931        19970517.718  126p  Tmz.VSOLJ
TmzV931        19970703.727  123p  Tmz.VSOLJ
TmzV931        19980116.397  121p  Tmz.VSOLJ
TmzV931        19980823.617  120p  Tmz.VSOLJ
TmzV931        19981011.414  125p  Tmz.VSOLJ
TmzV931        19990105.447  123p  Tmz.VSOLJ
TmzV931        20000529.751  125p  Tmz.VSOLJ
TmzV931        20001216.393  119p  Tmz.VSOLJ
TmzV931        20010520.749  118p  Tmz.VSOLJ
TmzV931        20011116.528  119p  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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