The term that refers to the universe where the Sun is at the center of other celestial bodies is the heliocentric model or heliocentrism. This model places the Sun at the center, with the Earth and other planets orbiting around it. It contrasts with the older geocentric model, which placed Earth at the center of the universe
. Specifically:
- Heliocentrism is the astronomical model where the Sun is the center of the Solar System, and all planets, including Earth, revolve around it
- This model was first proposed by Aristarchus of Samos and later developed and popularized by Copernicus, with further evidence provided by Galileo
- The heliocentric model applies to the Solar System, which consists of the Sun and all celestial bodies gravitationally bound to it, such as planets, moons, asteroids, and comets
Therefore, the phrase "where the Sun is in the middle of other celestial bodies" is synonymous with the heliocentric model or heliocentrism.
