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Achilles Gasser


Achilles Pirmin Gasser (3 November 1505 – 4 December 1577) was a German physician and astrologer. He is now known as a well-connected humanist scholar, and supporter of both Copernicus and Rheticus.

Born in Lindau, he studied mathematics, history and philosophy as well as astronomy. He was a student in Sélestat under Johannes Sapidus; he also attended universities in Wittenberg, Vienna, Montpellier, and Avignon.

Rheticus lost his physician father Georg Iserin in 1528, executed on sorcery charges. Gasser later took over the practice in Feldkirch, in 1538; he taught Rheticus some astrology, and helped his education, in particular by writing to the University of Wittenberg on his behalf.

When Rheticus printed his Narratio prima—the first published account of the Copernican heliocentric system—in 1540 (Danzig), he sent Gasser a copy. Gasser then undertook a second edition (1541, Basel) with his own introduction, in the form of a letter from Gasser to Georg Vogelin of Konstanz. The second edition (1566, Basel) of De revolutionibus orbium coelestium contained the Narratio Prima with this introduction by Gasser.

Gasser died in Augsburg.

He prepared the first edition (Augsburg, 1558) of the Epistola de magnete of Pierre de Maricourt.

Other works include:

Gasser belonged with Flacius to the humanist circle around Kaspar von Niedbruck, concerned with the recovery of monastic manuscripts. Others in the group were John Bale, Conrad Gesner, Joris Cassander, Johannes Matalius Metellus, and Cornelius Wauters.


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