Ptolemy believed the Earth was at the center of the universe with other planets revolving around it, as detailed in his geocentric model, though his theory was later proven inaccurate when Galileo showed the Earth circles the sun. However, Ptolemy set the basic foundation of astronomy for future astronomers by making his theory.

1. Beliefs
Ptolemy believed that the earth
was in the center of the universe
and all the other Planets
revolved around it. he made a
detailed geocentric model to
Prove his theory. unfortunately,
his theory turned out to be
inaccurate and it was later
Proved by galileo that the earth
circles around the sun. but by
making his theory, Ptolemy set
the basic foundation of
astronomy for future
astronomers.