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  1. Childhood & Early Life. Johannes Kepler was born on December 27, 1571 to Heinrich Kepler and Katharina Guldenmann in the Stuttgart region of Germany. His family was believed to be very wealthy but by the time Kepler was born, the wealth in the family had declined drastically. Kepler’s father, Heinrich Kepler earned his living as a mercenary ...

  2. See All Videos and Images →. Johannes Kepler, German astronomer who discovered three major laws of planetary motion. His discoveries turned Nicolaus Copernicus’s Sun-centered system into a dynamic universe, with the Sun actively pushing the planets around in noncircular orbits. Learn more about Kepler’s life and discoveries in this article.

  3. Johannes Kepler - Astronomy, Laws, Heliocentrism: The ideas that Kepler would pursue for the rest of his life were already present in his first work, Mysterium cosmographicum (1596; “Cosmographic Mystery”). Kepler had become a professor of mathematics at the Protestant seminary in Graz, Austria, in 1594, while also serving as the district mathematician and calendar maker. In 1595, while ...

  4. Johannes Kepler. Johannes Kepler (December 27, 1571 – November 15, 1630), a key figure in the scientific revolution, was a German Lutheran, a mathematician, astrologer, astronomer, and a professionally trained theologian. As a Pythagorean mystic, he thought of the universe as founded on mathematical relationships and forming an integrated whole.

  5. In astronomy, Kepler's laws of planetary motion, published by Johannes Kepler between 1609 and 1619, describe the orbits of planets around the Sun. The laws modified the heliocentric theory of Nicolaus Copernicus , replacing its circular orbits and epicycles with elliptical trajectories, and explaining how planetary velocities vary.

  6. Timeline. 1571 - 1630. Life of the German astronomer Johannes Kepler. 27 Dec 1571. Johannes Kepler is born in Weil der Stadt, Germany. 1594. Johannes Kepler is appointed the official instructor in astronomy and mathematics at the University of Graz, Austria. 1597. Johannes Kepler marries a rich widow, Barbara Müller.

  7. 1 de dic. de 2009 · Features. The year was 1571. Copernicus had been dead for 28 years and his great idea of a heliocentric universe had received virtually no public support. Tycho Brahe was a young man of 25. Galileo and Shakespeare were both 7 years old. And Johannes Kepler was born, on 27 December (at 2.30 in the afternoon, according to a horoscope that he ...