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Dec 27, 1571
Born
Born Dec. 27, 1571 in Weil der Stadt, Württemberg to a poor family (Westman). Westman, Robert S.. "Johannes Kepler". Encyclopedia Britannica, Invalid Date, https://www.britannica.com/biography/Johannes-Kepler. Accessed 20 May 2023. -
Period: Dec 27, 1571 to
Lifespan
Westman, Robert S.. "Johannes Kepler". Encyclopedia Britannica, Invalid Date, https://www.britannica.com/biography/Johannes-Kepler. Accessed 20 May 2023. -
Entered University of Tübingen
He was given a ducal scholarship (Westman) and began learning at University. He originally wanted to be a theologian, but ultimately did not become one. Westman, Robert S.. "Johannes Kepler". Encyclopedia Britannica, Invalid Date, https://www.britannica.com/biography/Johannes-Kepler. Accessed 20 May 2023 -
Became Professor of Mathmatics
He became a professor of Mathematics for the protestant seminary in Graz, Austria. He was also a district mathematician and calender maker. (Westman) Westman, Robert S.. "Johannes Kepler". Encyclopedia Britannica, Invalid Date, https://www.britannica.com/biography/Johannes-Kepler. Accessed 20 May 2023 -
Published, "Mysterium Cosmographicum"
Kepler, Johannes. Mysterium Cosmographicum: The Secret of the Universe. United States, Abaris Books, 1981. -
Became Imperial Mathmetician
He became the Imperial Mathematician to Holy Roman Emperor Rudolf II in 1601 replacing Tycho Brahe who had died. He lived in Castle Benátky near Prague (Westman). Westman, Robert S.. "Johannes Kepler". Encyclopedia Britannica, Invalid Date, https://www.britannica.com/biography/Johannes-Kepler. Accessed 20 May 2023. -
Published, "Concerning the More Certain Fundamentals of Astrology"
Kepler, Johann. Concerning the More Certain Fundamentals of Astrology. United States, Literary Licensing, LLC, 2013. -
Published, “Supplement to Witelo, in Which Is Expounded the Optical Part of Astronomy”
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Discovered his "Laws of Mars"
Using his own knowledge and data from his predecessor, he discovered his laws of Mars. That planets move in an elliptical orbit (Westman) and that the area inside any two point in an orbit and a foci will be equal, when the period between the points in the orbit is the same.
Socratica
Westman, Robert S.. "Johannes Kepler". Encyclopedia Britannica, Invalid Date, https://www.britannica.com/biography/Johannes-Kepler. Accessed 20 May 2023. -
Published, "Astronomia Nova"
Book where he explained his discoveries and explained the First and Second Law of planetary bodies (Kepler). Kepler, Johannes. Astronomia Nova. United States, Green Lion Press, 2015. -
Published, "Epitome Astronomiae Copernicanae"
This work combined all his previous work was a turning point in answering critics. This is the point where enough new data had been accumulated that opponents either needed to change their minds or lose the argument on what was at the center of the solar system. It was this time period that was the paradigm shift in the understanding of the movement of heavenly bodies. Kepler, Johannes. Epitome of Copernican Astronomy and Harmonies of the World. United States, Prometheus, 2012. -
Published, "Harmonice Mundi"
In this work Kepler explains his third law of planetary bodies. Kepler, Johannes. The harmony of the world. Philadelphia, American Philosophical Society, 1997. -
Published, "Tabulae Rudolphinae"
Kepler, Johannes. Tabulae Rudolphinae: or the Rudolphine tables. United Kingdom, n.p, 1675. -
Death
His self composed epitaph for his death was;
I used to measure the heavens,
now I shall measure the shadows of the earth.
Although my soul was from heaven,
the shadow of my body lies here.
-Johannes Kepler