Dec 29 ~11:33-2:59 from Lexington, Mass. Clear skies with average transparency. Third Q moon late. Taken with Takahashi Epsilon 160, Canon 5D Mark III, 1600ASA, 513 x 15sec aligned on stars. Images Plus and Photoshop processing.

This trail spans 3h 43m, during which the comet traveled about 30', the apparent diameter of the moon.