Chronology of Kepler's Music of the Spheres

• 1600
  • January, Kepler visits Tycho in Prague
  • March, Tycho suspicious
  • July, Kepler obsessed by Tycho's Mars data
  • September, Kepler moves to Prague
• 1601
  • October 24, Tycho dies, Kepler takes over as Imp. Math.
  • Kepler begins his "war on Mars"
• 1602
  • Kepler applies Tycho's data to his Mys. Cosmog. model
  • Kepler discovers the the orbit of Mars is not circular
  • Kepler obtains the equal area (second) law
• 1604, Kepler discovers the oval orbit
• 1605
  • Early: Kepler rejects the epicycle theory
  • March: Kepler develops the libration theory w/ pseudo-magnetic force
  • 11 October: Kepler discovers the elliptical orbit (first law)
• 1609, Kepler publishes the Astronomia Nova
• 1610, Kepler publishes the Third Man in the Middle
• 1612, Kepler moves to Linz
• 1618
  • Kepler's mother accused of witchcraft
  • Kepler reads music text by Galileo's father, Vincenzo
  • February, Kepler's daughter, Katerina, died
  • Kepler begins the Harmonice
  • May, Kepler finds the third law
• 1619, Kepler publishes the Harmonice
• 1621, Kepler publishes the Mysterium, 2nd edn.