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  1. Johannes Kepler (/ ˈ k ɛ p l ər /; German: [joˈhanəs ˈkɛplɐ,-nɛs-] ⓘ; 27 December 1571 – 15 November 1630) was a German astronomer, mathematician, astrologer, natural philosopher and writer on music.

  2. Aug 30, 2023 · Johannes Kepler (1571-1630) was a German astronomer and mathematician most famous for creating what was up to that point the most accurate model of planetary astronomy with his three laws of planetary motion. Kepler was the first to present a coherent theory that the planets move around the Sun in elliptical orbits, that the speed of each ...

    • Mark Cartwright
  3. May 2, 2011 · Johannes Kepler. First published Mon May 2, 2011; substantive revision Fri Sep 17, 2021. Johannes Kepler (1571–1630) is one of the most significant representatives of the so-called Scientific Revolution of the 16 th and 17 th centuries.

  4. Johannes Kepler was a German mathematician and astronomer who discovered that the Earth and planets travel about the sun in elliptical orbits. He gave three fundamental laws of planetary motion. He also did important work in optics and geometry.

  5. Dec 22, 2023 · Johannes Kepler was an astronomer best known for his three laws of planetary motion, which describe how the planets move in ellipses around the sun. His name is also well-known thanks to NASA's...

  6. This fact became the basis of the first of Keplers three laws of planetary motion. He also determined that planets move faster as they near the Sun (second law), and in 1619 he showed that a simple mathematical formula related the planets’ orbital periods to their distance from the Sun (third law).

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