Give a description about a heliocentric model?

Answer 1

Heliocentric model means the sun is the center of the solar system - not the Earth as first thought.

Copurnicus is given credit for the correct thinking to devise the heliocentric model.

Answer 2

Are you in the right church, brother? This looks like an astronomy question. Anyway, helios is Greek for sun. So this means a "sun-centered" model. In this model, the planets circle around the sun. The first important model was by Copernicus, the planets were postulated to orbit in a circle. Then it was modified to elliptical orbits.