ASTRONOMERS IN HISTRORY

ARISTOTLE

• He believed that in the geocentric Universe and that the planets and stars were perfect spheres
• his major contribution was to the overall study and teaching of such subjects
• He was a Greek philosopher

ARISTARCHUS

• He believed in a heliocentric solar system.
• His major contribution was his relative distance to the moon and sun
• He was a Greek philosopher

PTOLEMY

• He believed that a celestial body traveled At a constant rate in a perfect circle.
• His main contribution was his geocentric model

COPERNICUS

• He believed in a heliocentric model of the solar system.
• His model was his main contribution

KEPLER

• He believed that ellipses fit Best to our solar system.
• His main contribution are the laws that he made "keplers laws"

GALILEO

• He believed in scientific methods
• He created a new telescope

THANKS