Star Trails - First Attempt

This is my first attempt at imaging Star Trails. Each image was for about 2 minutes, with a 1 minute gap between. The 38 images were processed using the Achim Schaller's freeware from www.startrails.de. My thanks to Achim for this very nice piece of software. (Image details: ISO 200, f-stop 2.8, 120 seconds, canon 550D, Tonika 11mm wide angle lens, tripod mounted and timed with a Intervalometer). About 2 hours worth of images is about what you can hope for with the 550D standard battery configuration, and that is fully charged.