October 31, 2011 Taken during my AOP session at Kitt Peak in Tucson, AZ.
Mercury and Venus at Sunset

Moon and Sagittarius rising over Dome

Aquila Wide Field

Auriga Wide Field

Cassiopeia Wide Field

Cassiopeia Over Steward Observatory

Cepheus Wide Field

Sculptor Rising over Telescopes

Summer Triangle Wide Field

Bubble Nebulae with M52

Horsehead and Flame Nebulae

M31, M32 and M110

M33

M42

M45

M57

M81 and M82

NGC 6946 (galaxy) and NGC 6939 (open cluster)

North America Nebula

Pac Man Nebula

Rosette Nebula

Witch's Head Nebula