astronomy

  • aristotle
    383 BCE

    aristotle

    aristotle was a greek philosipher
  • ptolemy
    100

    ptolemy

    he was he Greco-Roman mathematician, astronemer, geographer, astrologer he lived in the roman provience of Egypt and wrote koine greek and had roman citzenship he discovered geocentric because he thought the earth was in the middle of our unirverse
  • copernicus
    1473

    copernicus

    he was a rennisence are mathematician and an astronimer and he discovered that the sun is in the middle of the universe not the earth
  • 1546

    Tycho Brahe

    Tycho Brahe was a danish nobleman, astronomer, and a writer he helped say that the earth was not in the middle of the universe and that the sun is the middle
  • Galileo
    1564

    Galileo

    Galileo constructed a telescope and discovered that Venus had phases like the moon and so does Jupiter
  • Hans Lippershey
    1570

    Hans Lippershey

    Hans Lippershey invented the telescope
  • Johannes Kepler
    1571

    Johannes Kepler

    he discovered that all the planets elliptical orbits with the sun
  • sir isaac newton

    sir isaac newton

    newton was english mathmetition astronimer he worked on gravity and he formend the 3 laws of physics and he invented the reflective telecope