Astronomy Timeline

  • Ptolemy
    140

    Ptolemy

    He invented the terrestrial latitude and longitude system. His model of Geocentric was believed for 1500 years.
  • Period: 140 to

    Time span

    Time Span (310 B.C. - 1727)
  • Ancient Greeks
    310

    Ancient Greeks

    First to propose the Heliocentric universe.
  • Nicolaus Copernicus
    Jan 1, 1543

    Nicolaus Copernicus

    Placed the Sun in the center- Heliocentric.
  • Tycho Brahe

    Tycho Brahe

    He believed that the Sun orbited the Earth, while the other planets orbited the Sun.
  • Johannes Kepler

    Johannes Kepler

    Created the Three Laws of Planetary Motion.
  • Galileo Galilei

    Galileo Galilei

    He believed in the Heliocentric system.
  • Isaac Newton

    Isaac Newton

    He discovered the Three Laws of Motion.