C/2007 E2 (Lovejoy) on 5/17/07. This is a cpomposite of sixty 1 minute
images. I registered the images on the stars. Note how the comet moved
over the course of one hour as it passed NGC6015.
Hazeldale Observatory Astronomy
Same set of images, but this time I
used some tricks to freeze the comet in
relation to the stars.