Had great views in dark skies this morning (27 Dec). Despite dimming off considerably since my last view on the 24th, the comet was much longer and still an inspiring sight! I could see about 33-deg of tail naked-eye, to about level with halfway between the top Pointer & the Cross. Shots showed very faint extension perhaps out to 38-deg or so. Images here:
Overall view, 4:00am (17:00, 26 Dec UT) - Canon 400D, 18mm, 3 x 2 min, ISO 1600, F/4.5:
http://i727.photobucket.com/albums/w...mfullredsm.jpg
Head of comet:
http://i727.photobucket.com/albums/w...headcompsm.jpg
First 10-deg of tail:
http://i727.photobucket.com/albums/w...textcompsm.jpg
18-deg section of tail:
http://i727.photobucket.com/albums/w...tailcompsm.jpg
Small section of tail at 200mm zoom, showing no structure:
http://i727.photobucket.com/albums/w...ailtextbsm.jpg
Compare with 200mm tail shot on 24 Dec (23 Dec UT):
http://i727.photobucket.com/albums/w...djtextsm-1.jpg
Cheers -