Question

What criteria separates a planet from a dwarf planet?

Answer 1

1 )orbit around the Sun

2) has sufficient mass for its self-gravity to overcome rigid body forces so that it assumes a hydrostatic equilibrium (nearly round) shape

3)has not cleared the neighbourhood around its orbit, and 4)is not a satellite

these 4 criteria separates a planet from a dwarf planet

Answer 2

The only difference between a planet and a dwarf planet is the area surrounding each celestial body. A dwarf planet has not cleared the area around its orbit, while a planet has. Since the new definition, three objects in our solar system have been classified as dwarf planets: Pluto, Ceres and Eris.