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[vsnet-obs 24098] New Takamizawa variable (TmzV593)

New Takamizawa variable (TmzV593)

   Kesao Takamizawa (Nagano, Japan) reports the discovery of a new variable
star (TmzV593).

TmzV593
= GSC4274.1313 215817.14 +660028.5 (2000.0) 10.64 1
= USNO1500.08690730 215817.146 +660028.14 (2000.0) 10.8 13.4
= IRAS21569+6546 215659.9 +654612 (1950.0)
    F12=0.91  F25=0.25  F60=0.52  F100=4.36L
    VAR=52 LRS=-1
    VIa: non-variable star with relatively cold dust at large
      distance, may be carbon-rich
= 215817.6 +660034 (2000.0) IRAS21569+6546 0.876 0.245 0.531 4.376L 52%
= 215817.6 +660034 (2000.0) SSC21569+6546 0.876 0.245 0.531 4.376L

  LD242 lies close to this object, but looks like a different variable.

215808.5 +660002 (2000.0) LD242 11.8 16.0v M 155 49809 

  Takamizawa's comment:

  The star may be a semiregular variable with a range of 10.6-11.3p.

object         YYMMDD(UT)   mag  code
TmzV593        970827.540  112p  Tmz.VSOLJ
TmzV593        971218.437  110p  Tmz.VSOLJ
TmzV593        980823.563  107p  Tmz.VSOLJ
TmzV593        980916.530  112p  Tmz.VSOLJ
TmzV593        981107.440  113p  Tmz.VSOLJ
TmzV593        990709.574  112p  Tmz.VSOLJ
TmzV593        990807.594  106p  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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