Comet Lovejoy, with its distinct green glow, has been amazing astronomers, both amateur and professional, with its visibility this January. Check out a collection of images and further info at Space.com.
Pictured (click to enlarge): Comet Lovejoy taken Saturday, January 10, 2015 by Dr. Bill Cooke. Image is a 3 minute exposure using the iTelescope T3 refractor. At the time of this image, the comet was some 45 million miles from Earth.