Johann+Kepler

**  "Truth is the daughter of time, and I feel no shame in being her midwife." ** Johann Kepler was born on December 27, 1571 in Weil der Stadt, Württemberg. Kepler was a mathematician and an astronomer. He discovered that the Earth and planets travel around the sun in elliptical orbits. He gave three laws of planetary motion:  1. The path of the planets about the sun are elliptical in shape, with the center of the sun being located at one focus. (The Law of Ellipses) 2. An imaginary line drawn from the center of the sun to the center of the planet will sweep out equal areas in equal intervals of time. (The Law of Equal Areas) 3. The ratio of the squares of the periods of any two planets is equal to the ratio of the cubes of their average distances from the sun. (The Law of Harmonies)



Johann Kepler supported Nicolas Copernicus's heliocentric theory, he defended this theory in his first major work, Mysterium Cosmographicum. Kepler's acheivements in mathematics and astronomy have shaped our current knowledge of the solar system today. He was the founder of modern astrology.

HERO WANTED Notebook Activity Using the information abvoe create an acrostic poem for Johann Kepler, you can choose to create the poem out of his first or last name: J O H A N N

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