translate English to German: Later in his life he focused almost exclusively on astronomy alone and all but denounced astrology as he became more and more involved in the scientific revolution and ultra-rational thought of the day. While young he read widely on the subject of astrology, and soon he was very knowledgeable about it; strangely enough, it was his extensive knowledge of astrology that led to his first appointment as an astronomer.
Er postulierte die Planetenbahnen als cassinische Kurve n, und lehnte Keplers Ellipsenbahnen sowie die newtonsche Gravitationstheorie ab.