Comet Lovejoy, C/2014 Q2, on January 11, 2015, shot through the TMB 92mm apo refractor, at f/4.4 for a field of about 4 x 3 degrees. This is a stack of 4 x 2 minute exposures at ISO 3200 with the Canon 6D. Shot from near Silver City, New Mexico.
Astronomy author and photographer Alan Dyer presents amazing sky sights
The Amazing Sky 