Annular eclipse, 2012.

Annular eclipse, 2012.

Transit of Venus.

Transit of Venus.

Lunar eclipse.

Phases of Lunar eclipse.

Comet Hale-Bopp, 1997, Colorado.

Comet Hale-Bopp, 1997, Colorado.

Comet PanSTARRS (C/2011 L4), Flagstaff, AZ

Comet PanSTARRS (C/2011 L4), Flagstaff, AZ

Comet PanSTARRS (C/2011 L4) with a large anti-tail.

Comet PanSTARRS (C/2011 L4), Sedona, AZ

Comet PanSTARRS (C/2011 L4), Flagstaff, AZ

Comet Lovejoy (C/2013 R1), Arizona.

Comet Lovejoy (C/2014 Q2)

Comet Lovejoy (C/2014 Q2)

Orion and M42.

Milky Way, Arizona.

Milky Way, Arizona.

Milky Way, Arizona.

Milky Way, Arizona.

Star trails, Grand Canyon, Arizona.

Star Trails, Cathedral Rock, Sedona, Arizona.

Star trails, Locket Meadows, Arizona.

Zodiacal Light.

Moonrise, San Francisco Peaks, Arizona.

Crescent moon.

Moonrise, Cathedral Rock, Sedona, AZ.

Moonrise, Cathedral Rock, Sedona, AZ

Moonrise, Cathedral Rock, Sedona, AZ.

Moonset, Cathedral Rock, Sedona, AZ.

Moon, Lake Mary, Flagstaff, AZ.

Katsinas, northern Arizona.

Perseid meteor.

Orionid meteor.

ISS and STS-133 Discovery.

ISS and STS-134 Endeavor venting prior to landing.

ISS transitting the Moon.

ISS and STS-134 Endeavor transiting the Moon.

Tiangong 1: Chinese Space Station

Discovery Channel Telescope, Arizona.

Discovery Channel Telescope, Arizona.

Clark Telescope, Arizona.

Clark Telescope, Arizona.

Occultation of Venus.