Ptolemy's contribution to early astronomy was:

Question

a
He noticed the stars moving in patterns around the night sky, thus predicting the geocentric theory
b
He noticed the planets in space moving around each other, thus predicting the existence of planetary orbits
c
He noticed the planets orbiting the space around the sky, thus predicting the existence of multiple galaxies
d
He noticed the brightest star in the sky does not move during the year, thus predicting the stellar classification system

Answer 1

The most accurate contribution of Ptolemy to early astronomy is:

a He noticed the stars moving in patterns around the night sky, thus predicting the geocentric theory.

Ptolemy is best known for his geocentric model of the universe, which posited that the Earth was at the center and that the planets and stars moved around it in complex patterns, including epicycles. His work "Almagest" was a significant synthesis of ancient Greek astronomical knowledge and remained influential for many centuries.