Dwarf planets are celestial bodies that orbit the sun, have sufficient mass to assume a spherical shape, have not cleared their orbit of other objects, and are not satellites. Examples of dwarf planets include Pluto and Ceres. While Pluto was previously considered a planet, in 2006 it was reclassified as a dwarf planet due to its small size and eccentric orbit beyond Neptune's orbit at over 17 million km2. Dwarf planets fall between minor bodies like asteroids and major planets like those in our solar system.

1. DWARF PLANETS
IN THE
SOLAR SYSTEM

2. DEFINITION OF DWARF PLANET
Dwarf planet is a term that defines a type of
celestial body. It’s between a ‘planet’ and a
‘minor body of the Solar System’.
Some examples of dwarf planets are Pluto and
Ceres, orbiting far away than Neptune’s orbit.

3. Characteristics
There are four characteristics that defines a dwarf
planet:
- They are in orbit with the Sun.
- They are not satelites.
- It has sufficient mass for having his own gravity, so
them usually have espherical form. There are some
exceptions, like Haumea:
- Their orbit is not clean of other little celestial bodies
( that’s the difference with normal planets).

4. Pluto and Ceres
Some years before, Pluto was considerated a
Planet, but in 2006 scientifics denominated it
dwarf planet, because of his size and his orbit (
deflected with the other planets). It’s situated
far away from Neptune’s orbit and it has
17.000.000 km2.