Tycho Brahe produce much of his astronomical data, Tycho relied heavily on the then new technique of "prosthaphaeresis", an algorithm for approximating products based on trigonometric identities that predated logarithms. Although Tycho admired Copernicus and was the first to teach his theory in Denmark, he was unable to reconcile Copernican theory with the basic laws of Aristotelian physics, that he considered to be foundational. He was also critical of the observational data that Copernicus built his theory on, which he correctly considered to have a high margin of error. Instead, Tycho proposed a "geo-heliocentric" system in which the Sun and Moon orbited
Tycho Brahe Brahe, and several gnesio-Lutheran Bishops who suspected Brahe of heresy — a suspicion motivated by his known Philippist sympathies, his pursuits in medicine and alchemy (both of which he practiced without the church's approval) and his prohibiting the local priest on Hven to include the exorcism in the baptismal ritual. Among the accusations raised against Tycho Brahe were his failure to adequately maintain the royal chapel at Roskilde, and his harshness and exploitation of the Hven peasantry. The straw that broke the camel's back for Tycho was when a mob of commoners, possibly incited by his enemies at court, rioted