The belief that the sun, moon and stars
orbited the earth in perfect circles
accepted model from the time of the ancient Greeks to the 1500's
In 1610, Galileo proved that this model was incorrect
Nota:
Galileo observed that three 'stars' were in a line near Jupiter. He then saw a fourth 'star' and saw they seemed to be orbiting Jupiter. These were in fact moons and proved the geocentric model was wrong.
Heliocentric model
This model states that all planets including the earth orbit the sun
Copernicus challenged the geocentric model in
a book published in 1543
He suggested that many astronomical observation could be explained
without the geocentric model
Galileo's observations were the most
convincing eveidence to support this
theory
model wasn't very popular and was
condemned by the church