Asttronom y

KEY DATES IN THE HIISTORY OF ASTRONOMY

By paola-824
  • 4 BCE

    REVOLUTION OF THE SUN

    REVOLUTION OF THE SUN
    The greek astronomer Aristarchus of Samos suggested that the Earth revolved around the sun.
  • 3 BCE

    THE REVOLUTION OF THE EARTH

    THE REVOLUTION OF THE EARTH
    Ptolemy suggested a geocentri astronomic model. According to him, the Sun, the Moon and the five knows planets (Mercury, Venus, Mars, Jupiter, and saturn) all revolved around the Earth.
  • 2 BCE

    STARS

    STARS
    The greek astronomer Hiparchus classified the stars according to their apparent brightness.
  • Sep 13, 1543

    AROUND THE SUN

    AROUND THE SUN
    copernicus published his heliocentric model accordng to wich the planets revolved around the Sun.

  • MILKY WAY

    MILKY WAY
    Tyco Brahe carried out very detailed observation of the planets. Kepler deduced his famous planetary laws following Brahes observation.

  • GALILEO GALILEI

    GALILEO GALILEI
    Galileo used a telescope for the first time to observe the night sky. This was the birth of modern astronomy.