[vsnet-alert 9274] Re: BC Dor (= Cal 86) outburst

[Taichi Kato]

   The referred 2003 superoutburst was:

  YYYYMMDD(UT)   mag  observer
  20031112.466  <154  (Rod Stubbings)
  20031113.507   128  (Rod Stubbings)
  20031113.515   128  (Rod Stubbings)
  20031113.551   128  (Rod Stubbings)
  20031114.2027 13.238V  (ASAS (Pojmanski, G. 2002, Acta Astron. 52,397))
  20031114.469   129  (Rod Stubbings)
  20031116.480   129  (Rod Stubbings)
  20031118.482   130  (Rod Stubbings)
  20031119.1981 <14.50V  (ASAS (Pojmanski, G. 2002, Acta Astron. 52,397))
  20031121.2430 14.060V  (ASAS (Pojmanski, G. 2002, Acta Astron. 52,397))
  20031123.462   139  (Rod Stubbings)
  20031124.494   144  (Rod Stubbings)
  20031125.2924 <14.50V  (ASAS (Pojmanski, G. 2002, Acta Astron. 52,397))
  20031125.478  <154  (Rod Stubbings)
  20031126.485  <154  (Rod Stubbings)
  20031127.476  <154  (Rod Stubbings)

2004 April normal outburst

  20040412.762  184CR  (Berto Monard)
  20040416.0532 <14.50V  (ASAS (Pojmanski, G. 2002, Acta Astron. 52,397))
  20040419.0013 <14.50V  (ASAS (Pojmanski, G. 2002, Acta Astron. 52,397))
  20040420.406  <150  (Rod Stubbings)
  20040421.489   142  (Rod Stubbings)
  20040421.514   143  (Rod Stubbings)
  20040426.701  <175CR  (Berto Monard)
  20040427.0094 <14.50V  (ASAS (Pojmanski, G. 2002, Acta Astron. 52,397))
  20040427.385  <146  (Rod Stubbings)
  20040428.414  <144  (Rod Stubbings)
  20040505.9864 <14.50V  (ASAS (Pojmanski, G. 2002, Acta Astron. 52,397))
  20040508.0103 <14.50V  (ASAS (Pojmanski, G. 2002, Acta Astron. 52,397))

2006 January outburst:

  20060116.2663 <14.50V  (ASAS (Pojmanski, G. 2002, Acta Astron. 52,397))
  20060119.1448 <14.50V  (ASAS (Pojmanski, G. 2002, Acta Astron. 52,397))
  20060121.2163 <14.50V  (ASAS (Pojmanski, G. 2002, Acta Astron. 52,397))
  20060126.1530 <14.50V  (ASAS (Pojmanski, G. 2002, Acta Astron. 52,397))
  20060128.2416 13.312:V (ASAS (Pojmanski, G. 2002, Acta Astron. 52,397))
  20060128.681   128  (Rod Stubbings)
  20060131.1171 13.927V  (ASAS (Pojmanski, G. 2002, Acta Astron. 52,397))
  20060202.2189 14.072V  (ASAS (Pojmanski, G. 2002, Acta Astron. 52,397))
  20060205.0657 <14.50V  (ASAS (Pojmanski, G. 2002, Acta Astron. 52,397))

  If these ASAS observations are correct, the outburst duration
seems to suggest a superoutburst.  If this outburst was indeed
a superoutburst, the supercycle is somewhere around 430 d.
(consistent with the 2003 Nov superoutburst, if one was missed
in late 2004 or early 2005).

  Time-resolved photometry is naturally encouraged.