An image showing the close approach of Comet C/2014 Q2 (Lovejoy) to the Andromeda Galaxy on 10 February 2015, when the comet had faded to magnitude 5 from its peak luminosity of 3.9 a month earlier.

This is a stack of 140 4s exposures (total exposure time: 9min 20s), made with DeepSkyStacker using 38 dark, 38 offset, and 20 flat frames.