Star Trails at Point of Rocks

Stars trace 76 minutes of the Earth rotation during the 2009 Leonid Meteor shower. Taken at Point of Rocks, in the Cimarron National Grassland located by Elkhart, KS

Click image for larger version (960x1440).

This picture is composed of 100 individual photos taken early in the morning. During the night this camera took 420 images over a 5 1/2 hour period.

Photograph Information
Date	11.17.2009, 03:00 - 04:15
Location	Point of Rocks, Cimarron National Grasslands, by Elkhart KS
Lens	Tokina 12mm @ f4
Camera	Canon 40D
Exposure	100 exposures of 45 seconds at ISO 1600 (76 minutes total)
Notes	Excellent transparency, temperature around 25°F, poor seeing. Initial RAW conversion in Canon DPP, processing in Photoshop CS2, stacked using Chris Schur's Star Trails action.