The Astronomia Nova

The Astronomia Nova, authored by Johannes Kepler in 1609, is a groundbreaking work that details Kepler's discoveries about planetary motion. It presents his laws showing that planets orbit the Sun in elliptical paths, not perfect circles, and move faster when they are closer to the Sun. Kepler's meticulous analysis of Tycho Brahe's precise astronomical data led to these insights, fundamentally changing our understanding of celestial mechanics. The work laid the foundation for modern astronomy by demonstrating that planetary motion follows natural, mathematical laws, emphasizing a heliocentric universe where the Sun, not Earth, is at the center.