The colorful Eagle Nebula taken at the National Science Foundation's telescope on Kitt Peak. Located in the constellation of Serpens, the Serpent, the Eagle Nebula is a very luminous open cluster of stars surrounded by dust and gas.
Another unusual source is a cluster of bright, compact nebulae located in the lower right edge of the Tornado Nebula. Astronomers debate the nature of the relationship between the larger Tornado Nebula and the cluster of compact nebulae.
Clouds of Perseus ~ contains over solar masses of gas and dust, but the eye is drawn to red NGC Known as the California Nebula, its characteristic glow of atomic hydrogen gas is fueled by ultraviolet light from luminous blue star Xi Persei.