The description of the solar system where all planets revolve around the sun is called a heliocentric model.

Here's why:

* Helios is the Greek word for the sun.

* Centric refers to the center.

Therefore, a heliocentric model places the sun at the center of the solar system, with the planets orbiting around it. This is the accurate model of our solar system, as opposed to the older geocentric model which incorrectly placed Earth at the center.