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[vsnet-obs 23058] New Takamizawa variable (TmzV505)

New Takamizawa variable (TmzV505)

   Kesao Takamizawa (Nagano, Japan) reports the discovery of a new variable
star (TmzV505).

TmzV505
= GSC6023.2379 083745.04 -220440.6 (2000.0) 13.45 0
= GSC6023.2379 083745.15 -220441.6 (2000.0) 13.17 0
= GSC6023.2379 083745.18 -220440.5 (2000.0) 13.19 0
= GSC6023.2379 083745.22 -220442.0 (2000.0) 13.13 0
= USNO0675.06743888 083745.141 -220440.70 (2000.0) 11.1 14.6
= IRAS08355-2154 083533.5 -215415 (1950.0)
    F12=0.91  F25=0.33  F60=0.40L F100=1.00L
    VAR=14 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
= 083746.0 -220447 (2000.0) FSC08355-2154 0.786 0.300 0.158L 0.906L
= 083746.2 -220447 (2000.0) IRAS08355-2154 0.924 0.331 0.400L 1.000L 14%
= 083746.2 -220447 (2000.0) SSC08355-2154 0.924 0.331 0.400L 1.000L

  Takamizawa's comment:

  The star may be a semiregular variable with a range of 12.7-13.2p.

object         YYMMDD(UT)   mag  code
TmzV505        941109.794  129p  Tmz.VSOLJ
TmzV505        950203.655  129p  Tmz.VSOLJ
TmzV505        971105.779  127p  Tmz.VSOLJ
TmzV505        980102.642  130p  Tmz.VSOLJ
TmzV505        980322.524  129p  Tmz.VSOLJ
TmzV505        981117.792  132p  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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