A closeup of the Orion Nebula. The four bright stars at the center are called the Trapezium.
The Ring Nebula, also known as M57, is in the constellation Lyra. It's one of the brightest nebulae viewable from the northern hemisphere.
A closeup of the Rosette Nebula, which is a cloud of atomic hydrogen (aka an H II region) in the constellation Monoceros.
The Bubble Nebula is an H II region emission nebula in Cassiopeia. The "bubble" is created by the stellar wind from a star at the center.
The Running Man Nebula is just north of the great Orion Nebula.
Venus transiting in front of the Sun in 2012. The next transit viewable from Earth will be in 2117.
The Moon is Earth's only natural satellite. It's diameter is one-quarter Earth's diameter.
The Dumbbell Nebula, also known as M27, is a large planetary nebula located in the constellation Vulpecula. It's about 1,360 light years away from us.
The Helix Nebula, also known as NGC 7293, is a large planetary nebula located in the constellation Aquarius.
This picture of Jupiter was taken on Thanksgiving night, November 22, 2012. The moon on the right is Io.
The Veil Nebula is a huge gaseous remnant of a supernova explosion. The full nebula is approximately circular in shape and spans about 3 degrees on the sky.
Two pictures of the full moon. One taken when the moon was at perigee and the other taken when the moon was at apogee.
The Crescent Nebula is an emission nebula in the constellation Cygnus. It is about 5000 lightyears away from us.
The Andromeda Galaxy, also known as M31, is the nearest major galaxy to our own Milky Way---only 2.5 million lightyears away.
The Whirlpool Galaxy, also known as M51, is actually a pair of interacting galaxies about 23 million lightyears away from us.
The great globular cluster in Hercules, also known as M13, is the brightest and prettiest globular cluster visible to observers in the northern hemisphere.
The Crab Nebula, also known as M1, is a supernova remnant from the supernova explosion of 1054AD. At the center of the nebula lies the Crab Pulsar.
The Orion Nebula, also known as M42, is a star-birth region where interstellar gas is in the process of condensing and forming new stars.
The Sun imaged with a narrowband H-alpha filter.
The Eagle Nebula, also known as the Pillars of Creation.
Comet Garradd as it appeared on August 30, 2011. Image taken with a Canon 450D on my 10" Ritchey-Chretien.