CMC By martarm Period: 470 BCE to 385 BCE PHILOLAUS Period: 360 to 415 HIPATIA Period: Feb 19, 1473 to May 24, 1543 NICHOLAS COPERNICUS Period: Dec 14, 1546 to Oct 24, 1601 TYCHO BRAHE Period: Feb 15, 1564 to Jan 8, 1642 GALILEO GALILEI Period: Dec 27, 1571 to Nov 15, 1630 JOHANNES KEPLER Period: Jun 8, 1625 to Sep 14, 1712 GIOVANI DOMENICO CASSINI Period: Nov 8, 1656 to Jan 14, 1742 EDMUND HALLEY Period: 1738 to Aug 25, 1822 WILLIAM HERSCHEL Period: Mar 23, 1749 to Mar 5, 1827 LAPLACE Period: 1758 to 1840 HEINRICH OLBERS Period: Feb 7, 1824 to May 12, 1910 WILLIAM HUGGINS Period: 1868 to 1938 ELLERY HALE Period: 1889 to 1953 EDWIN HUBBLE Period: Mar 24, 1893 to Jun 25, 1960 WILHELM BAADE Period: 1942 to 2018 STEPHEN HAWING