Comet 21P/Giacobini-Zinner
Modified Canon EOS 600D,Sky Watcher ED 80mm f/6.25 refractor
21 x 1.5-minute exposures, ISO 3200. Camera piggybacked on a Celestron C8 for tracking (unguided).
Frames registered and stacked on the comet (hence the trailed stars) using Deep Sky Stacker;
curves and colour balance adjusted via Canon Photo Professional; noise reduced via Cyberlink PhotoDirector.
full exif