double planet

English

Noun

double planet (plural double planets)

1. (astronomy) 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. (astronomy) 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. (astronomy) A pair of planemos in orbit around each other, where the barycenter of their orbits lies outside of both planemos.
4. (astronomy) A planemo with a moon large enough to be considered a planemo, having a substantial portion of the system's overall mass.

Synonyms

• binary planet

Hypernyms

• planet

References

• double planet on Wikipedia.Wikipedia