Tycho Brahe was a Danish noble and one of the preeminent astronomers of the late 16th century. Born on December 14, 1546, at Knudstrup in Scania, which was then a part of Denmark, he is best known for his accurate and comprehensive astronomical observations. His work laid the foundational observations upon which his protégé, Johannes Kepler, would later base his laws of planetary motion. Brahe's c...