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[vsnet-newvar 1329] New Takamizawa variable (TmzV930)

New Takamizawa variable (TmzV930)

   Kesao Takamizawa (Nagano, Japan) reports the discovery of a new variable
star (TmzV930).

TmzV930
= GSC4042.714 011022.28 +660712.6 (2000.0) 12.34 1
= USNO1500.01205753 011022.274 +660712.64 (2000.0) 11.8 15.7
= IRAS01071+6551 010706.1 +655130 (1950.0)
     F12=25.11  F25=12.02  F60=2.51  F100=14.45L
     VAR=14 LRS=15
     blue featureless, spec.index=2.5
     VII: variable star with more evolved C-rich circumstellar shell
= 011024.1 +660727 (2000.0) IRAS01071+6551 24.350 12.300 2.556 15.120L 14% 3(LRS)
= 011024.1 +660727 (2000.0) SSC01071+6551 24.350 12.300 2.556 15.120L
= 011025.0 +660657 (2000.0) RAFGL163
= 011025.0 +660657 (2000.0) TMSS+70018

  Takamizawa's comment:

  The star may be a semiregular variable with a range of 11.8-12.7p.

Photographic magnitude estimates by VSOLJ members

object         YYYYMMDD(UT)   mag  code
TmzV930        19950120.474  125p  Tmz.VSOLJ
TmzV930        19970517.718  124p  Tmz.VSOLJ
TmzV930        19970703.727  121p  Tmz.VSOLJ
TmzV930        19980116.397  118p  Tmz.VSOLJ
TmzV930        19980823.617  125p  Tmz.VSOLJ
TmzV930        19981011.414  126p  Tmz.VSOLJ
TmzV930        19990105.447  123p  Tmz.VSOLJ
TmzV930        20000529.751  125p  Tmz.VSOLJ
TmzV930        20001216.393  123p  Tmz.VSOLJ
TmzV930        20010520.749  127p  Tmz.VSOLJ
TmzV930        20011116.528  127p  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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