Thanks guys. Here's an animated gif made from an image at 13:33UT using WinJUPOS. The image itself (also attached at original size) was made using the 600D, 3x Powermate, 2x Barlow and 2.8x teleconverters on the 12" f/5 for a total focal length of 25,200mm. Overkill for sure but fun
Link to smoother video:
http://youtu.be/Jr2AYQf5aUM
Tom