Adiagram that shows the earth at the center of the solar system is known as a what?
1. geocentric model.
2. heliocentric model.
3. universe model.
4. earth-moon-sun model.

The correct answer for the question that is being presented above is this one: "1. geocentric model." A diagram that shows the Earth at the center of the solar system is known as the geocentric model. It is also known as the Ptolemaic system is a superseded description of the universe, where the Earth is at the center of all the celestial bodies.