[vsnet-newvar 1109] New Takamizawa variable (TmzV805)

[Taichi Kato <tkato>]

New Takamizawa variable (TmzV805)

   Kesao Takamizawa (Nagano, Japan) reports the discovery of a new variable
star (TmzV805).

TmzV805
= GSC6937.787 211801.24 -232750.3 (2000.0) 14.04 0
= USNO0600.23730924 211801.238 -232750.39 (2000.0) 11.9 15.3
= IRAS21151-2340 211508.4 -234026 (1950.0)
     F12=1.20  F25=0.76  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
= 211759.8 -232754 (2000.0) FSC21151-2340 1.222 0.812 0.174L 0.925L
= 211801.1 -232748 (2000.0) IRAS21151-2340 1.213 0.764 0.400L 1.000L 0%
= 211801.1 -232748 (2000.0) SSC21151-2340 1.213 0.764 0.400L 1.000L

  Takamizawa's comment:

  The star may be a semiregular variable  with a range of 13.2-14.1p.

Photographic magnitude estimates by VSOLJ members

object         YYYYMMDD(UT)   mag  code
TmzV805        19940512.754  135p  Tmz.VSOLJ
TmzV805        19940705.622  140p  Tmz.VSOLJ
TmzV805        19940803.601  137p  Tmz.VSOLJ
TmzV805        19940930.556  139p  Tmz.VSOLJ
TmzV805        19941124.449  140p  Tmz.VSOLJ
TmzV805        19950723.670  141p  Tmz.VSOLJ
TmzV805        19951020.456  139p  Tmz.VSOLJ
TmzV805        19960721.663  134p  Tmz.VSOLJ
TmzV805        19970709.631  135p  Tmz.VSOLJ
TmzV805        19970828.585  140p  Tmz.VSOLJ
TmzV805        19991029.464  132p  Tmz.VSOLJ
TmzV805        20011013.465  134p  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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