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[vsnet-obs 19773] New Takamizawa variable (TmzV276)

New Takamizawa variable (TmzV276)

   Kesao Takamizawa (Nagano, Japan) reports the discovery of a new variable
star (TmzV276).

TmzV276
= USNO0750.01992698 061700.272 -083608.31 (2000.0) 11.9 20.6
= IRAS06146-0834 061436.8 -083459 (1950.0)
    F12=3.31  F25=0.91  F60=0.40L F100=2.51L
    VAR=52 LRS=-1
 possibly I: oxygen-rich non-variable star without circumstellar shell
 or VIa: non-variable star with relatively cold dust at large
      distance, may be carbon-rich
= 061700.4 -083608 (2000.0) IRAS06146-0834 3.217 0.947 0.400L 2.536L 52%
= 061700.4 -083608 (2000.0) SSC06146-0834 3.217 0.947 0.400L 2.536L
= 061700.8 -083609 (2000.0) FSC06146-0835 3.238 0.907 0.246 4.443L

  Takamizawa's comment:

  The star may be a semiregular variables with a range of 12.3-14.0p.

Photographic magnitude estimates by VSOLJ members

object         YYMMDD(UT)   mag  code
TmzV276        940331.481  140p  Tmz.VSOLJ
TmzV276        941127.608  129p  Tmz.VSOLJ
TmzV276        950203.519  137p  Tmz.VSOLJ
TmzV276        950219.442  138p  Tmz.VSOLJ
TmzV276        951021.750  123p  Tmz.VSOLJ
TmzV276        951219.605  130p  Tmz.VSOLJ
TmzV276        960111.501  138p  Tmz.VSOLJ
TmzV276        961206.602  125p  Tmz.VSOLJ
TmzV276        971103.759  127p  Tmz.VSOLJ
TmzV276        971221.572  126p  Tmz.VSOLJ
TmzV276        990206.492  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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