Copernicus, NICOLAS

1473-1543. Astronomer; canon of Frauenburg, Pru ia, from 1499. His scientific investigations IMG:content-0971.jpg:[graphic] 06. 1543. Natio*NICOL A US IMG:content-0972.jpg:[graphic] culminated in his theory regarding the mechanism of the solar system. His book, De Orbium Celestium Revolution i bus , completed 1530, was pub. just before his death, and despite violent opposition overturned previously received ideas of astronomy.