What observation did this geocentric model of the solar system help to explain? orbit speed
the phases of Venus
retrograde motion
the rising of the Sun

In the geocentric model of the solar system, the Earth is viewed as the focal point or the centre of the close planetary system.

Explanation:

The celestial bodies like the moon, planets, sun, stars all rotate and revolve around the Earth (which remains still) with uniform circular movement.

The geocentric model uses an arrangement of epicycles to clarify retrograde movement, whereby the planets moved around little circular ways that thus moved around bigger circles around the Earth. Heliocentric model proposes that the universe rotates around the Sun.

Look at the diagram of the solar system.

The solar system shows the sun and planets in their orbits around Earth in this order: Moon, Mercury, Venus, Sun, Mars, Jupiter, Saturn.

What observation did this geocentric model of the solar system help to explain?

Retrograde motion

Explanation:

I got it right on the Quiz.

Retrograde Motion is caused by Earth moving faster than other planets. The image that goes with it shows the planets and their motion. Their motion can be shown as the speed of the planets.

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