M 82 with the Astro-modded Canon 1100D. 1 hour 50 minutes in 5 minute ISO 800 subs on March 20th 2014.
While considerably faded, Supernova SN2014j is still visible.

M 82 and Supernova SN2014j - 3 hours in 2 minute ISO 800 subs on January 23rd 2014.

Here's M82 with the ASI120MM camera, 51 x 8 second unguided exposures.

GIF animation of the supernova before and after.

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M 82 - 5 hours and 10 minutes in 10 minute subs at ISO 400, with a 3/4 full Moon on November 12th 2013.

M 82 - 1 hour and 20 minutes in 5 minute subs at ISO 400.

M 82 Unguided, unknown exposure length.