Hudson’s Ancient Astronomers Timeline - Ms. Reysz

By Hudson2005
  • 85

    Eratosthenes

    Eratosthenes
    He discovered “Earth’s axis” in 85 CE.
    It was important due to the use of measurements. He also discovered “Earth’s circumference”.
  • 150

    Claudius Ptolemy

    Claudius Ptolemy
    He discovered longitudes and latitudes in 150 CE.
    This was important due to maps being used and kept for directions. He also discovered planets that revolve around our Earth.
  • 1508

    Nicolaus Copernicus

    Nicolaus Copernicus
    He discovered “heliocentric system” in 1508.
    It was important due to the motions of its system. He also discovered “Sun center theory”.

  • Tycho Brahe

    Tycho Brahe
    Invention 1: He discovered “C/1590 El” in 1590.
    It was important due to the invention of steel quadrant. Invention 2: He also discovered “new star Cassiopeia”.

  • Johannes Kepler

    Johannes Kepler
    He discovered Mars was the ellipse in 1601.
    This was important due to “Kepler’s Laws of Planetary Motion”. He also discovered all other planets can travel as an ellipse around our Sun.

  • Isaac Newton

    Isaac Newton
    He discovered ‘calculus’ in 1665.
    This was important due to the mathematical theorm people would have to learn and study. He also discovered “theory of universal gravity”.

  • Albert Einstein

    Albert Einstein
    He discovered the equation “E = mc^2” in 1905.
    This was important due to the understanding the similarity of energy and mass. He also discovered “theory of relativity”.