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[vsnet-newvar 1156] New Takamizawa variable (TmzV843)

New Takamizawa variable (TmzV843)

   Kesao Takamizawa (Nagano, Japan) reports the discovery of a new variable
star (TmzV843).

TmzV843
= GSC2824.143 015101.70 +424347.1 (2000.0) 10.05 1
= USNO1275.01115218 015101.748 +424347.32 (2000.0)  9.8 12.3
= IRAS01479+4228 014759.8 +422855 (1950.0)
     F12=10.96  F25=4.78  F60=0.83  F100=1.00L
     VAR= 0 LRS= 1
     low S/N blue
     II: variable star with 'young' O-rich circumstellar shell
= 015059.9 +424314 (2000.0) TMSS+40027
= 015101.7 +424344 (2000.0) IRAS01479+4228 11.210 4.702 0.800 1.000L 0% 2(LRS)
= 015101.7 +424344 (2000.0) SSC01479+4228 11.210 4.702 0.800 1.000L
= 015102.4 +424353 (2000.0) FSC01480+4229 10.670 4.706 0.862 1.050L
= 015101.6 +424347 (2000.0) 1049 1.26 TYC2824.143.1 plx=55.4(48.7) (0.05 0.13)
= 015101.6 +424346 (2000.0) 1058 1.17 TYC2-2824.143.1 (10.71 0.05) (12.08 0.11)
= 015102.9 +424445 (2000.0) DO24888

  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
TmzV843        19941102.661  105p  Tmz.VSOLJ
TmzV843        19950127.431  107p  Tmz.VSOLJ
TmzV843        19950320.429  108p  Tmz.VSOLJ
TmzV843        19960922.666  102p  Tmz.VSOLJ
TmzV843        19970613.728  103p  Tmz.VSOLJ
TmzV843        19980116.413  109p  Tmz.VSOLJ
TmzV843        19980629.701  104p  Tmz.VSOLJ
TmzV843        19991128.448  106p  Tmz.VSOLJ
TmzV843        20000902.669  102p  Tmz.VSOLJ
TmzV843        20011023.597  103p  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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