[vsnet-newvar 259] New Takamizawa variable (TmzV711)

[Taichi Kato <tkato>]

New Takamizawa variable (TmzV711)

   Kesao Takamizawa (Nagano, Japan) reports the discovery of a new variable
star (TmzV711).

TmzV711
= GSC4249.991 213408.69 +611423.1 (2000.0) 14.46 1
= USNO1500.08232492 213408.668 +611422.89 (2000.0) 12.7 16.7
= IRAS21327+6100 213247.6 +610058 (1950.0)
    F12=0.52  F25=0.28  F60=0.40L F100=3.63L
    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
= 213408.9 +611422 (2000.0) IRAS21327+6100 0.521 0.270 0.400L 3.642L 0%
= 213408.9 +611422 (2000.0) SSC21327+6100 0.521 0.270 0.400L 3.642L

  Takamizawa's comment:

  The star may be a semiregular variable with a range of 13.7-14.5p.

object         YYYYMMDD(UT)   mag  code
TmzV711        19970824.567  140p  Tmz.VSOLJ
TmzV711        19970827.540  140p  Tmz.VSOLJ
TmzV711        19971218.437  139p  Tmz.VSOLJ
TmzV711        19980823.562  137p  Tmz.VSOLJ
TmzV711        19980916.530  141p  Tmz.VSOLJ
TmzV711        19990709.574  139p  Tmz.VSOLJ
TmzV711        19990807.594  138p  Tmz.VSOLJ
TmzV711        19991226.462  145p  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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