Comet in the Keystone | Doug Zubenel

Doug Zubenel
Location of photo
Linn Co., KS
Date/Time of photo
Oct. 29, 2006. 7:15-7:30 pm CST
Image is a 15 minute exposure with a 135mm Nikkor lens @ f/5.6 on a Mamiya back loaded camera with Kodak E200 (pushed to ISO 3200). Camera was piggybacked on a driven equatorial mount.
This image shows Comet SWAN framed the familiar keystone shape of Hercules. A close look will reveal the ion tail stretching 7 degrees to just north of Pi Herculis. The globular clusters M13 and M92 are quite conspicuous The rich, blue sky background is due to scattered light from the first quarter Moon.