double planet
noun1
Astronomy, Natural sciences 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, Natural sciences 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, Natural sciences A pair of planemos in orbit around each other, where the barycenter of their orbits lies outside of both planemos.
4
Astronomy, Natural sciences 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