This video was assembled from frames taken manually a few seconds apart, resulting in some jumps in the motion. The total elapsed time is about 5 minutes.

The frames were taken with a Nikon D700 with 2x teleconverter, attached to a Borg 100ED refractor with Thousand Oaks broadband solar filter, for an effective focal length of 1280mm. Each frame was shot at ISO800, 1/4000 sec.