Astrophotography from Boulder, Colorado

Click on an image to view a gallery

	Galaxies The universe is mostly empty space, populated by scattered galaxies. The galaxies presented here range from 2 to 500 million light years distant.
	Nebulae Nebulae are clouds of gas - mainly hydrogen, with traces of common elements such as oxygen, sulfur and nitrogen. They are the birthplace of future generations of stars.
	Star Clusters Most stars are members of a cluster for at least part of their lives. Clusters vary from sparse young open clusters to dense ancient globular clusters.
	Solar System The solar system includes planets, moons, comets, and the Sun itself.

Galaxies	Nebulae
Star Clusters	Solar System