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[vsnet-newvar 1155] New Takamizawa variable (TmzV842)

New Takamizawa variable (TmzV842)

   Kesao Takamizawa (Nagano, Japan) reports the discovery of a new variable
star (TmzV842).

TmzV842
= GSC2816.301 015138.12 +391543.3 (2000.0) 10.04 1
= USNO1275.01121801 015138.116 +391543.54 (2000.0)  8.7 11.1
= 2MASS 015138.136 +391543.56 (2000.0)  0.000  0.000  0.000
= 2MASS 015138.136 +391543.56 (2000.0)  0.000  0.000  0.000
= IRAS01486+3900 014838.9 +390054 (1950.0)
     F12=6.92  F25=2.51  F60=0.91  F100=1.00L
     VAR=19 LRS=-1
     VII: variable star with more evolved C-rich circumstellar shell
= 015137.3 +391539 (2000.0) FSC01486+3900 6.671 2.424 0.827 0.871
= 015137.7 +391542 (2000.0) IRAS01486+3900 7.087 2.446 0.877 1.040L 19%
= 015137.7 +391542 (2000.0) SSC01486+3900 7.087 2.446 0.877 1.040L
= 015138.8 +391554 (2000.0) TMSS+40029
= 015138.1 +391543 (2000.0) 1039 1.00 TYC2816.301.1 plx=33.1(39.3) (0.06 0.09)
= 015138.1 +391543 (2000.0) 1045 1.21 TYC2-2816.301.1 (10.58 0.05) (12.01 0.11)

  Takamizawa's comment:

  The star may be a semiregular variable  with a range of 9.8-10.9p.

Photographic magnitude estimates by VSOLJ members

object         YYYYMMDD(UT)   mag  code
TmzV842        19941102.661  105p  Tmz.VSOLJ
TmzV842        19950127.416  104p  Tmz.VSOLJ
TmzV842        19950320.429  107p  Tmz.VSOLJ
TmzV842        19950921.616  109p  Tmz.VSOLJ
TmzV842        19951217.524  107p  Tmz.VSOLJ
TmzV842        19960815.634  106p  Tmz.VSOLJ
TmzV842        19970830.647   99p  Tmz.VSOLJ
TmzV842        19980629.710  105p  Tmz.VSOLJ
TmzV842        19990709.706   98p  Tmz.VSOLJ
TmzV842        19991128.456  107p  Tmz.VSOLJ
TmzV842        20000604.735  105p  Tmz.VSOLJ
TmzV842        20000902.669  103p  Tmz.VSOLJ
TmzV842        20011023.597  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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