double planet

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English

Noun

double planet (plural double planets)

  1. a planet with a moon large enough to be considered a planet, were the planet not there, having a substantial portion of the system's overall mass.
  2. a pair of planemos in orbit around each other, where the barycenter of their orbits lies outside of both planemos, which in turn is in orbit about a star.
  3. a pair of planemos in orbit around each other, where the barycenter of their orbits lies outside of both planemos.
  4. a planemo with a moon large enough to be considered a planemo, having a substantial portion of the system's overall mass.

Hypernyms

References

Wikious
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Sagapedia