Globular cluster M3

This object is bright enough to stand out well against the light pollution, and I got the focus spot on - it was the last object of the night and the scope had settled in over an hour beforehand.

Frontier Road, Ottawa; March 6, 2010, 12:30 AM; T=-5 C, seeing average with moderate humidity. 4x5 min at ISO 800, with Canon XSi on 120mm refractor; autoguided.