On Sunspotsby Galileo Galilei, Christoph Scheiner, Eileen Reeves, Albert van Helden
Pub. Date: 10/30/2010
Publisher: University of Chicago Press
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
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