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[vsnet-obs 23449] New Takamizawa variable (TmzV566)

New Takamizawa variable (TmzV566)

   Kesao Takamizawa (Nagano, Japan) reports the discovery of a new variable
star (TmzV566).

TmzV566
= GSC4274.1586 215456.69 +663101.0 (2000.0) 10.74 1
= USNO1500.08624051 215456.680 +663100.68 (2000.0) 10.1 14.0
= IRAS21537+6616 215343.7 +661642 (1950.0)
    F12=1.10  F25=0.33  F60=0.48L F100=4.78L
    VAR=43 LRS=-1
 possibly I: oxygen-rich non-variable star without circumstellar shell
 or VII: variable star with more evolved C-rich circumstellar shell
 or VIa: non-variable star with relatively cold dust at large
      distance, may be carbon-rich
= 215457.7 +663057 (2000.0) IRAS21537+6616 1.115 0.329 0.457L 4.955L 43%
= 215457.7 +663057 (2000.0) SSC21537+6616 1.115 0.329 0.457L 4.955L
= 215504.5 +662928 (2000.0) DO40417

  Takamizawa's comment:

  The star may be a semiregular variable with a range of 11.0-11.5p.

object         YYMMDD(UT)   mag  code
TmzV566        970827.540  110p  Tmz.VSOLJ
TmzV566        971218.437  113p  Tmz.VSOLJ
TmzV566        980823.563  115p  Tmz.VSOLJ
TmzV566        980916.530  111p  Tmz.VSOLJ
TmzV566        981107.440  113p  Tmz.VSOLJ
TmzV566        990709.574  112p  Tmz.VSOLJ
TmzV566        990807.594  112p  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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