Michał z Wrocławia and pre-Copernican Astronomy

Michał z Wrocławia was a medieval professor at Kraków Academy who lectured on astronomy, astrology, mathematics, as well as scholastic and Aristotelian philosophy. Nicolaus Copernicus was a student of his. His Introductoriũ Astronomie Cracoviense Elucidãs Almanach (Cracovie, 1506) is a compendium of astrological knowledge, which focuses extensively on the zodiac and the movement of the planets.