“The Remarkable Science of Ancient Astronomy” S:1 E:18 The Genius of Hipparchus

S:1 E:18 The Genius of Hipparchus Considered the greatest astronomer of the ancient world, Hipparchus created a thousand-star catalog and discovered precession, the eons-slow rotation of the fixed stars around the ecliptic. Did this remarkable discovery give birth to the Mithraic religion, which rivalled Christianity?