This is the first time for an animation like this. Wasn't sure how to get rid of field rotation easily so just turn your head slowly while you watch . Shot at f/10 with red filter. I couldn't get it under the size limitation (it's 350kb) so see it here:
That's very cool Dave. Excellent registration of the frames. Shame about the rotation, but nothing you can do about that on your alt/az mount unless you get a wedge.
I'd prefer to see it a bit faster (15ms between frames) plus as a sweep animation rather than jump back to the start. But that's my personal preference only.