P2 ChimaO Famous Astronamers

By cobenwa16
  • 200

    Ptolemy

    Ptolemy
    Lived from 90AD to 168AD believed in a Geocentric solar system. Thought the stars, sun and planets revolved around the Earth. He thought the earth was not in motion.
  • Feb 19, 1473

    Nicholas Copernicus

    Nicholas Copernicus
    Believed in a Heliocentric solar system. Believed that all spheres revolved around the Sun. Also discovered that Earth has two motions.
  • Feb 15, 1564

    Galilieo Galilei

    Galilieo Galilei
    improved the telescope Discovered that Venus had phases. Discovered lots about the milky way and various other planets.
  • Dec 27, 1571

    Johannes Kepler

    Johannes Kepler
    He caculated and recaculated the orbit of Mars and he concluded that all planets move in eclipses.

  • Sir Issac Newton

    Sir Issac Newton
    (4 January 1643 – 31 March 1727) believed that all ob+j+ect+s have a gravitational pull.