On Sunspots

by Eileen Reeves, Albert van Helden, Galileo Galilei, et al.

Book Overview

Galileo's telescopic discoveries, and especially his observation of sunspots, caused great debate in an age when the heavens were thought to be perfect and unchanging. Christoph Scheiner, a Jesuit mathematician, argued that sunspots were planets or moons crossing in front of the Sun. Galileo, on the other hand, countered that the spots were on or near the surface of the Sun itself, and he supported his position with a series of meticulous observations...

• Format: Paperback
• Language: English
• ISBN: 0226707164
• ISBN13: 9780226707167
• Release Date: October 2010
• Publisher: University of Chicago Press
• Length: 432 Pages
• Weight: 1.20 lbs.
• Dimensions: 0.9" x 5.9" x 8.9"