Here’s how the items would be categorized between the Geocentric Model and the Heliocentric Model:
Geocentric Model:
- includes five planets
- the sun is at the center of the solar system
- earth is at the center of the solar system
Heliocentric Model:
- includes eight planets
- the orbits of the planets are elliptical
- the orbits of the planets are circular
It’s worth noting that while the Heliocentric model (developed by Copernicus) acknowledges elliptical orbits (as later described by Kepler), it can also describe orbits as circular as an approximation, especially in simpler discussions. However, since Kepler's laws describe the elliptical nature specifically, that distinction is often made in educational contexts.