Geocentric theory and Heliocentric theory
Channel: #JP STUDIES#
Date: 02/11/2020

Ptolemy was an astronomer and mathematician.He believed that the Earth was the center of the Universe .The word for Earth in Greek is Geo, so we call this idea a Geocentric theory.
Heliocentric theory , a cosmological model in which the sun is assumed to lie at or near a central point while the Earth and other bodies revolve around it .