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[vsnet-obs 24116] New Takamizawa variable (TmzV602)

New Takamizawa variable (TmzV602)

   Kesao Takamizawa (Nagano, Japan) reports the discovery of a new variable
star (TmzV602).

TmzV602
= GSC4269.698 223748.64 +631541.1 (2000.0) 12.60 6
= USNO1500.09287267 223748.698 +631541.33 (2000.0) 12.8 16.3
= IRAS22360+6259 223600.1 +625951 (1950.0)
    F12=0.44  F25=0.21  F60=1.10L F100=10.00L
    VAR=25 LRS=-1
 possibly II: variable star with 'young' O-rich 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
= 223747.0 +631527 (2000.0) IRAS22360+6259 0.429 0.204 1.049L 10.400L 25%
= 223747.0 +631527 (2000.0) SSC22360+6259 0.429 0.204 1.049L 10.400L

  Takamizawa's comment:

  The star may be a semiregular variable with a range of 12.8-13.7p.

object         YYMMDD(UT)   mag  code
TmzV602        970827.540  135p  Tmz.VSOLJ
TmzV602        971218.437  132p  Tmz.VSOLJ
TmzV602        980823.563  131p  Tmz.VSOLJ
TmzV602        980916.530  137p  Tmz.VSOLJ
TmzV602        981107.440  132p  Tmz.VSOLJ
TmzV602        990709.574  128p  Tmz.VSOLJ
TmzV602        990807.594  129p  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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