Thank you everyone, I really appreciate all your comments.

I have now completed an animation of the comet's movement across the sky. This is using data I took on 27th January through a clear filter:
HD video is here
Quote:
Originally Posted by originaltrilogy
How do you make you mount move at comet speed?
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I didn't track the comet itself, instead the image was made by aligning all the frames on the comet nucleus to get a detailed image of the comet, and then doing another separate alignment on the stars. These two stacks are then combined.