While Mount Reynolds waits in morning twilight (left), Going-to-the-Sun Mountain reaches for the first rays of sunlight on a winter's dawn.
Comet Lovejoy (C/2013 R1) rises into the winter skies above the fire lookout on Mt. Brown, in Glacier National Park, on December 7th, 2013.
Behind the lens.
It took four nights in sub-freezing temps before moon phase (new), cloud cover (none) and comet all aligned. On this night the air temp was minus 9F, not counting the wind chill.
On a moonless night over Saint Mary, 2014's Comet Lovejoy (C/2014 Q2) visits the blue nebula surrounding the Pleiades star cluster. Lovejoy's green coma is created by diatomic carbon flourescing in ultraviolet light in the near-vacuum of space.