Question

Which astronomer thought the earth was the center of the solar system

Answer 1

Lol, this whole theory was actually quite funny XD
Could never forget this, Ptolemy always thought earth was the center.

Answer 2

With the development of the heliocentric model by Nicolaus Copernicus in the 16th century, the sun was believed to be the center of the Universe, with the planets (including Earth) and stars orbiting it.