I had another go at a comet Garradd animation, this time without dithering between subs grin01 The "jumps" in comet movement are due to lost subs. I made the whole thing a bit brighter than last time so you can see the ion tail a little better.
http://www.flickr.com/photos/12801949@N02/6862890040/Greg
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Nexstar 11 GPS, 2 x Sky 90, M25C, MaximDL, Photshop CS3, Noel Carboni's Photoshop actions, 7 foot Pulsar fibreglass dome, Canon 40D, 100mm macro lens, 28-200mm zoom lens, 17-55mm f#2.8 zoom lens, 100-400mm zoom lens, 1.4x converter, 2x converter.
http://www.newforestobservatory.com/
http://www.flickr.com/photos/12801949@N02/