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[vsnet-newvar 657] New Takamizawa variable (TmzV766)

New Takamizawa variable (TmzV766)

   Kesao Takamizawa (Nagano, Japan) reports the discovery of a new variable
star (TmzV766).

TmzV766
= GSC6088.560 113232.69 -191159.0 (2000.0) 13.28 0
= USNO0675.08220985 113232.659 -191159.16 (2000.0) 11.3 13.5
= 2MASS 113232.752 -191158.29 (2000.0)  5.454  0.000  0.000
= IRAS11300-1855 113002.0 -185523 (1950.0)
     F12=1.74  F25=0.91  F60=0.40L F100=1.00L
     VAR= 0 LRS=-1
  possibly IIIa: variable star with more evolved O-rich c.s. shell
  or VIb: variable star with relatively hot dust close to
       the star and relatively cold dust at large distance
       may be O-rich
  or VII: variable star with more evolved C-rich circumstellar shell
= 113232.5 -191157 (2000.0) FSC11300-1855 1.819 0.906 0.176L 0.389L
= 113232.6 -191159 (2000.0) LMS156 M7 13.5
= 113232.8 -191157 (2000.0) IRAS11300-1855 1.726 0.892 0.400L 1.000L 0%
= 113232.8 -191157 (2000.0) SSC11300-1855 1.726 0.892 0.400L 1.000L

  Takamizawa's comment:

  The star may be a semiregular variable with a range of 11.6-13.2p.

Photographic magnitude estimates by VSOLJ members

object         YYYYMMDD(UT)   mag  code
TmzV766        19940310.551  120p  Tmz.VSOLJ
TmzV766        19941229.765  122p  Tmz.VSOLJ
TmzV766        19950226.624  119p  Tmz.VSOLJ
TmzV766        19951124.803  121p  Tmz.VSOLJ
TmzV766        19970212.710  121p  Tmz.VSOLJ
TmzV766        19970410.531  116p  Tmz.VSOLJ
TmzV766        19990112.763  119p  Tmz.VSOLJ
TmzV766        19990208.667  125p  Tmz.VSOLJ
TmzV766        19991207.845  119p  Tmz.VSOLJ
TmzV766        20000108.808  121p  Tmz.VSOLJ
TmzV766        20000131.687  132p  Tmz.VSOLJ
TmzV766        20000310.651  119p  Tmz.VSOLJ
TmzV766        20001204.812  125p  Tmz.VSOLJ

Observer's code:
  Tmz: K.Takamizawa (Saku-machi,Nagano,Japan)
       Inst.: 10cmR F4 twin patrol cameras  T-Max400 120
       Comparison stars mag.:GSC

Relayed from Kesao Takamizawa <GHA07243@nifty.ne.jp>

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