Article ID: CBB605936429

The Parallel Worlds of Christoph Scheiner and Galileo Galilei (2016)

unapi

Galileo Galilei and Christoph Scheiner, working independently, discovered many of the properties of sunspots that we accept as valid today. Using his precise drawings of sunspots, Scheiner discovered seasonal variations in the slope of sunspot tracks. These led him to measure a small inclination of the solar axis with respect to the ecliptic plane. Galileo interpreted the variations of sunspot tracks as strong evidence in support of the Copernican model of the planets and Sun. Scheiner, in contrast, sought to reconcile his discoveries with his belief in Church dogma. He rejected the Copernican model and adopted instead Tycho Brahe’s hybrid geocentric model, which was consistent with all pertinent observations.

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Authors & Contributors
Reeves, Eileen A.
Graney, Christopher M.
Van Helden, Albert
Boulier, Philippe
Giudice, Franco
Lewis, John
Journals
Galilæana: Journal of Galilean Studies
Journal for the History of Astronomy
Configurations: A Journal of Literature, Science, and Technology
Studies in History and Philosophy of Science
Nature
Acta Historica Astronomiae
Publishers
University of Notre Dame Press
University of Chicago Press
Atlas & Co.
Concepts
Astronomy
Sunspots
Science and religion
Copernicanism
Controversies and disputes
Censorship
People
Galilei, Galileo
Scheiner, Christoph
Brahe, Tycho
Locher, Johann Georg
Ingoli, Francesco
Riccioli, Giovanni Battista
Time Periods
17th century
19th century
21st century
20th century
Places
Italy
Europe
Rome
Institutions
Jesuits (Society of Jesus)
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