1571.12.27 - 1630.11.15
Notable German astronomer who formulated and verified the three laws of planetary motion, now known as Kepler's laws, based on the calculations of Tycho Brahe. In 1618-1621 he published the first astronomy textbook based on Nicolaus Copernicus' theory of the solar system, Epitome of Copernican Astronomy. Kepler's theories and observations were important to to the work of Sir Isaac Newton.