Astronomy Timeline Activity

By Marco101
  • Anaxagoras
    100

    Anaxagoras

    510 BC to 428 BC
    Famous for introducing the concept of mind as an ordering force
  • Aristotle
    100

    Aristotle

    384 BC - 322 BC
    Renown for his principles of moving
  • Aristarchus
    100

    Aristarchus

    310 – 230 BC
    Made first model with the Sun in the Center with the planets revolving around it.
  • Eratosthenes
    100

    Eratosthenes

    276 - 195/194 BC
    Known for being the first person to caculate the circumference of the Earth
  • Hipparchus
    100

    Hipparchus

    190 – 120 BC
    Known for his theories for solar and lunar theories.
  • Period: 100 to

    The Astronimers

  • Nicolaus Copernicus
    May 24, 1543

    Nicolaus Copernicus

    Geocentric vs Heliocentric
    Formulated Heliocentric model.
  • Tycho Brahe

    Tycho Brahe

    Made his own model called Tychonic system which said that the celectial realm changes.
  • Johannes Kepler

    Johannes Kepler

    LawsKeplers Laws
    Best known for his planatary laws.
  • Galileo Galilei

    Galileo Galilei

    Contributed with phases of Venus, it four moons and sunspots.
  • Sir Isaac Newton

    Sir Isaac Newton

    Formulated the laws of mation and universal gravitation.
  • Ptolemy

    Ptolemy

    AD 90 – 168
    known for Almagest, Planetary Hypotheses, and Handy Tables.