The data consisted of 360 exposures at intervals of just under a minute,
covering about 4 and 3/4 hours of time, in white light. The plot of
individual data points is a bit noisier than I would have liked, so Iíve
taken three-point moving averages and graphed those as shown.
SCT (Celestron CPC800, on HD equatorial wedge, with f 6.3 reducer)
Horsham, West Sussex UK