This image was obtained by an unguided seires of 60 second exposures, registering all frames to the
background stars and doing a simple mean combine. The motion of the comet
relative to the background
stars is strongly displayed using this technique. The total number of
exposures is easily
the number of "dots" the comet's
to the image.
In this case there were a total of 36 exposures separated by a fixed delay time of 120 seconds between exposures plus camera
total duration of about 2 hours.
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