Star trails from Aug. 14/15, 2010 at Henry Coe State Park, California.
121 Frames @ 17mm, f/5.6, 40 seconds, ISO 400
Nikon D300s and Nikkor 17-35mm f/2.8 AF-S
Stacked in CS5 and ran it through my standard ACR sliders, then tweaked then foreground a bit to bring it out more. Polaris the North Star is dead center.