Timelapse taken every 30 seconds with a William Optics FLT91 + Flat 6AIII FL 432 f/4.9. Canon EOS7D at ISO2000. Shutter speed range from 1/4000 of a second to 5 seconds. This was taken at the Darling Hill Observatory in Vesper, NY. Photos were centered using PIPP and then combined into a video file using Final Cut Pro.