Johannes Kepler Biography and Timeline

Birth of Johannes Kepler

Birth of Johannes Kepler

Mysterium cosmographicum (The Sacred Mystery of the Cosmos)

Publication of Mysterium cosmographicum (The Sacred Mystery of the Cosmos)

Mysterium cosmographicum

Publication of Mysterium cosmographicum (The Sacred Mystery of the Cosmos)

De Fundamentis Astrologiae Certioribus (Concerning the More Certain Fundamentals of Astrology)

Publication of De Fundamentis Astrologiae Certioribus (Concerning the More Certain Fundamentals of Astrology)

De Fundamentis Astrologiae Certioribus

Publication of De Fundamentis Astrologiae Certioribus (Concerning the More Certain Fundamentals of Astrology)

Astronomiae Pars Optica (The Optical Part of Astronomy), describes the astronomical implications of optics such as parallax and the apparent sizes of heavenly bodies

Publication of Astronomiae Pars Optica (The Optical Part of Astronomy), describes the astronomical implications of optics such as parallax and the apparent sizes of heavenly bodies

Astronomiae Pars Optica

Publication of Astronomiae Pars Optica (The Optical Part of Astronomy), describes the astronomical implications of optics such as parallax and the apparent sizes of heavenly bodies

Discovery of Parallax

Publication of Astronomiae Pars Optica (The Optical Part of Astronomy), describes the astronomical implications of optics such as parallax and the apparent sizes of heavenly bodies

Discovery of Eye Lens

Extends his study of optics to the human eye, and is generally considered by neuroscientists to be the first to recognize that images are projected inverted and reversed by the eyes lens onto the retina

Discovery of Planetary Motion

Finding that an elliptical orbit fit the Mars data, concludes that all planets move in ellipses, with the sun at one focus-Keplers first law of planetary motion

Law of Planetary Motion

Finding that an elliptical orbit fit the Mars data, concludes that all planets move in ellipses, with the sun at one focus-Keplers first law of planetary motion

Astronomia nova (New Astronomy)

Publication of Astronomia nova (New Astronomy)

Astronomia nova

Publication of Astronomia nova (New Astronomy)

Astronomia Nova

Publishes laws of elliptical planetary motion that prepare celestial mechanics for Newtonian gravity.

Role range: 1571-1630

Jupiter Moons

Publishes support for Galileo's discovery of satellites orbiting Jupiter.

Role range: 1571-1630

Copernican System

Publication of three volumes of Epitome astronomia Copernicanae (Epitome of Copernican Astronomy)

Epitome astronomia Copernicanae

Publication of three volumes of Epitome astronomia Copernicanae (Epitome of Copernican Astronomy)

three volumes of Epitome astronomia Copernicanae (Epitome of Copernican Astronomy)

Publication of three volumes of Epitome astronomia Copernicanae (Epitome of Copernican Astronomy)

De Fundamentis Astrologiae Certioribus (Concerning the More Certain Fundamentals of Astrology)

Publication of Harmonice Mundi (Harmony of the Worlds). Publication of De Fundamentis Astrologiae Certioribus (Concerning the More Certain Fundamentals of Astrology)

De Fundamentis Astrologiae Certioribus

Publication of Harmonice Mundi (Harmony of the Worlds). Publication of De Fundamentis Astrologiae Certioribus (Concerning the More Certain Fundamentals of Astrology)

Harmonice Mundi (Harmony of the Worlds)

Publication of Harmonice Mundi (Harmony of the Worlds). Publication of De Fundamentis Astrologiae Certioribus (Concerning the More Certain Fundamentals of Astrology)

Harmonice Mundi

Publication of Harmonice Mundi (Harmony of the Worlds). Publication of De Fundamentis Astrologiae Certioribus (Concerning the More Certain Fundamentals of Astrology)

Third Law of Planetary Motion

States the harmonic relation between orbital period and distance from the Sun.

Role range: 1571-1630

Rudolphine Tables

Publication of the Rudolphine Tables

Transit of Mercury Prediction

Kepler's Rudolphine Tables predict that Mercury will cross the face of the Sun in November 1631.

Transit of Venus Prediction

Kepler's Rudolphine Tables predict a transit of Venus for 1631, although the event is not visible from Europe.

Death of Johannes Kepler

Death of Johannes Kepler