This close-up of Comet Hartley was created by aligning 14 shots on the comet’s core. Notice the faint hint of a tail.
Date: October 13, 2010
Constellation: Comet in Perseus
Location: Culp Valley, Anza-Borrego Desert State Park, California. Elevation: 1020 metres
Optics: Borg 77EDII at f/4.3 on Takahashi EM-11 Mount
Camera: Hutech modified Canon EOS 5D Mark II
Exposure: 14 RAW light frames of 120 seconds, ISO 800
Processing: Light frames calibrated with dark frames and flat frames in ImagesPlus. Light frames combined using MinMax Excluded.