geocentric

A geocentric model of the universe is a model in which the Earth is at the centre of the universe. This model was believed by many ancient cultures, including the Greeks and the Egyptians.

In a geocentric model, the Sun, Moon, planets, and stars all orbit around the Earth. This model was based on observations of the night sky. For example, the Sun and Moon appear to move across the sky, and the planets appear to move against the background of stars.

The geocentric model was eventually replaced by the heliocentric model, which is a model in which the Sun is at the centre of the universe. The heliocentric model was proposed by Nicolaus Copernicus in the 16th century.

The geocentric model of the universe was the dominant cosmological model in the Western world until the 16th century.