Outer Planet (noun) Definition, Meaning & Examples

noun Astronomy.
  1. any of the planets in our solar system whose orbits lie beyond the asteroid belt, namely, Jupiter, Saturn, Uranus, and Neptune: before its reclassification as a dwarf planet in 2006, Pluto was included among the outer planets.
noun
  1. any of the planets Jupiter, Saturn, Uranus, Neptune, and (formerly) Pluto, whose orbit lies outside the asteroid belt
    Outer Planet (noun) Definition, Meaning & Examples

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