Bust of Tycho Brahe at the foot of the Round Tower (Rundetårn)

Copenhagen, Denmark (April 2011)
Tycho Brahe (1546-1601) was a famous Danish astronomer who generated the most accurate positional data for the planets of his day. His German assistant Johannes Kepler (1571-1630) later went on to use these measurements to derive the laws of planetary motion.
Tycho Brahe (1546-1601) was a famous Danish astronomer who generated the most accurate positional data for the planets of his day. His German assistant Johannes Kepler (1571-1630) later went on to use these measurements to derive the laws of planetary motion.
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