Question

What phases would Venus show if the geocentric model were correct?

Answer 1

If the geocentric model were correct, Venus would only show gibbous and crescent phases, similar to the Moon. In the heliocentric model, Venus goes through a complete range of phases.

Step-by-step explanation:

If the geocentric model were correct, Venus would exhibit a different set of phases compared to the heliocentric model. In the geocentric model, Venus would only show gibbous and crescent phases, similar to the Moon. This is because the position of Venus in relation to the Earth and the Sun would cause us to only see different illuminated portions of the planet.

However, in the heliocentric model, which is accepted today, Venus goes through a complete range of phases, similar to the Moon. This is because Venus revolves around the Sun, and as it moves, different portions of its illuminated side become visible to us on Earth.

Answer 2

It would show - New, waxing crescent, waxing half, waxing gibbous, full, waning gibbous, waning half, waning crescent phases just like moon.

Explanation: Geocentric model also known as geocentrism, gives the description of universe with Earth at the center. It is often exemplified by the Ptolemaic system. Under this system all the planets, stars, moon and the sun orbited the Earth. Ptolemaic order of spheres from Earth outward is Moon, Mercury, Venus, Sun, Mars. Jupiter, Saturn, Fixed stars, Primum Mobile. It was replaced by the heliocentric model where sun is at the center.