ancient astronomers

Timeline created by gspringfield477
  • -194 BCE

    Eratosthenes

    figured out the circrufance of the earth
  • 134

    Claudius Ptolemy

    he thought the earth was at the centar of the universe
  • 1512

    Nicolaus Copernicus

    figured out that the sun was in the centar of the universe he chaged the thinking of many people
  • 1556

    Tycho Brahe

    he made an observation about the universe that changed the organisation
  • 1571

    Johannes Kepler

    he figured out planetary movements witch led to orbits
  • Sir Isaac Newton

    he created calculus witch led to clear optics
  • Albert Einstein

    he came up with the theory of wave length it advanced evreybody understaning of astromney and phiscs