Eris is an OUTER planet. The only inner planets are Mercury, venus, earth and mars. An outer planet is not related to the size of the planet but rather the distance from the sun.
It would be an outer planet.
Neither: Eris is a dwarf planet in the kyper belt and is known as a KBO or Kyper belt object.
inner planet
Inner.
inner planet
It is an inner planet.
Saturn is an outer planet. The outer and inner plantes are divided by the asteroid belt.
Venus is an inner planet
Venus is an inner planet.
outer planet
It's the outer planet.
The asteroid belt is neither an inner or an outer planet; it is the belt of asteroids that seperate the inner from the outer planets
Inner, cause there is a ring of asteroids between Mars and Jupiter so therefore that makes it an inner planet & not an outer planet.