C/2014 S2 (PANSTARRS) 2016-May-04 Chris Schur

Lens: 10" f/3.9 Orion Astrograph with Baader MPCC coma corrector
Platform: Astrophysics AP1200
Camera: SBIG ST10XME
Exposure: 40m
Location: Payson, Arizona
Elevation: 5150 ft.
Sky: Seeing 7/10, Transparency 4/10
Outside Temperature: 50F
Processing Tools: Maxim DL, Photoshop CS2

This 8th magnitude comet in Leo Minor is currently the showpiece for the northern evening sky. Both tails seen here image as distinctly cyan colored, indications of plenty of gas being ionised in the comets coma. Note the fine edge on galaxy in the upper right corner - a dim 15.5 magnitude UGC galaxy that presents itself from the side very nicely.