Johannes KeplerA brief chronology, extracted from the Preface by I. Bernard Cohen, and the Introduction by Eric J. Aiton, in (Duncan, 1981). With additions from (Baumgardt, 1951) and (Koestler, 1960).1571 Born, 17 December, in Weil der Stadt 1572 New star appears, first since 125 BCE 1589 University of Tuebingen, studied with Maestlin 1594 Became professor of mathematics at Graz, April 1595 Asks Maestlin for a job in Tuebingen 1595 Vision of his Solar System Model, 19 July 1596 Kepler petitions Tuebingen University with MS, 1 May 1596 Pub'd. Mysterium cosmographicum, including his Solar System Model Full title: A Forerunner to Cosmographical Treatises, containing the Cosmic Mystery of the admirable proportions between the Heavenly Orbits and the true and proper reasons for their Numbers, Magnitudes, and Periodic Motions1597 Mysterium cosmographicum appears in print 1597 Kepler sends Myst. cosmo. to Tycho, Galileo 1597 Galileo writes to Kepler, 4 August (letter #1) 1598 Lutherans ordered to leave Graz, school closed 1600 Left Graz for Prague, 1 January 1600 Gilbert pub'd On Magnets 1601 Tycho dies, Kepler becomes Imperial Mathematicus 1602 Discovered his Second Law 1604 Pub'd. Astronomiae pars optica 1606 Pub'd. De stella nova, mentions Gilbert 1607 Kepler observed Halley's comet, September 1608 Kepler hears that Bruno was burned in 1600 1608 Kepler begins Geometrical Kabbala 1609 Pub'd. Commentaries on Mars 1609 Pub'd. Astronomia nova, incl. his Second Law (equal areas) and later his First Law (elliptic orbits) 1610 Galileo pub'd Starry Messenger 1610 Kepler learns of Galileo's new moons, 15 March 1610 Kepler sees the four moons, 3 August 1610 Kepler writes to Galileo, 9 August 1610 Galileo replies to Kepler, 19 August (letter #2) 1611 Pub'd. Dioptrice 1612 Kepler moved to Linz 1613 Second marriage 1615 Pub'd Nova stereometria doliorum vinariorum anticipating the integral calculus of Newton 1615 Kepler's mother accused of witchcraft 1618 Pub'd. Epitome astronomiae Copernicae 1618 Transl. Ptolemy's Harmonica 1618 Completes Harmonice mundi, May 27 1619 Pub'd. Harmonice mundi incl. his Third Law (period-distance relation) and his Music of the Spheres 1619 Kepler received news that one of his books had been banned in Rome and Florence 1620 Kepler's mother imprisoned, tortured for witchcraft 1621 Pub'd. Mysterium cosmographicum, 2nd edn. 1627 Pub'd. Tabulae Rudolphinae 1629 Kepler complains of Fludd, Mersenne 1630 Left Sagan, looking for a new home, October 1630 Died, November 15 Rev'd 23 sep 2004 by ralph abraham |