AD planetary motion timeline

By roesslee
  • Sep 18, 1000

    equenox

    when light and dark are the same amount of hours
  • Sep 18, 1530

    heliocentric

    Nicholas Copernicus made a model that discribed planetary motion simpler than the geocentric
  • Sep 18, 1543

    Copernicus

    found that the sun was in the center ofthe univers not the center of the earth

  • teloscope

    first way to veiw montain of the moon on the sides of saturn

  • geocentric

    aloud early astronomers to forcast things like the phases of the moon