Pluto's position in the solar system would tend to cause it to be classified as a Jovian planet, but it is even smaller than terrestrial planets. Although it is even smaller than terrestrial planets, its average density is closer to the giant outer (Jovian) planets.

Why is Pluto not terrestrial or jovian?

Answer 1: Pluto is NEITHER. Terrestrial planets are made up (mostly) of metal (iron) and rocks (silicates). Jovian planets are giant gas balls not unlike the SUN although they have a small rocky central core.

What planet are Jovian?

These images of the four Jovian planets — Jupiter, Saturn, Uranus, and Neptune — hint at some of the remarkable attributes that set them apart from the smaller, rocky terrestrial planets.