This is a wide field view of comet 46P/Wirtanen. I set up my DSLR with a 70-200mm lens at 85mm on my Skywatcher Star Adventurer mount and let it click away taking 60s captures for as long as possible while I watched the Geminid meteor shower. The meteors were beautiful and plentiful and the 102 minutes of data has created a nice portrait of the flourescent green comet.
Telescope:
Camera:
Exposures:
Canon 85mm lens @ f2.8
Canon EOS 1Dx
102 x 60s at ISO 800