Comet C103p/Hartley in Perseus Oct 12, 2010, a crop of the full image
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The green one, C103p/Hartley as it grazes eta persei at 12:15 AM on the 12th ofOctober 2010. My first effort, tuning up for the following night. Note the
component B of eta persei and, in the largest version, a mag 10 close double known as eta C. They lie at about 2 o'clock in the glare.

Telescope	Explore Scientific David H. Levy Comet Hunter Maksutov-Newtonian 152mm f/4.8 mounted piggyback on Meade LX 200 Classic 12 inch
Camera	Canon XT/350d modified with Baader type 1 filter by Hap Griffin
Exposure	One five-minute sub-exposure at iso 800
Guiding	Guided on the stars with PHD Guide from Stark labs with Meade DSI pro I on Meade 12-inch LX 200 Classic at f/3.3
Software	Images acquired, calibrated, stacked and color corrected with Nebulosity 2.3.3 from Stark Labs. Further processing in Photoshop CS 3.
on-line links to more information	for more information try a google search for the comet.