About the Author

Tom Arny is a professor in the Astronomy Department at the University of Massachusetts at Amherst. He is associated with the Five College Astronomy Program (comprising faculty from U-Mass, Amherst, Hampshire, Mt. Holyoke, and Smith Colleges). Dr. Arny received his undergraduate degree from Haverford College and his Ph.D. in astronomy from the University of Arizona. In addition to his interest in astronomy, he has a long-standing fascination with the natural world: weather (especially atmospheric optics such as rainbows), birds, wildflowers, and butterflies.

Visit the Dr. Arny's website at:

http://www.astro.umass.edu/~arny/astro100.html