planetary object
Meanings
noun
- Any secondary body in the Solar system that is geologically differentiated or in hydrostatic equilibrium and thus has a planet-like geology: a planet, dwarf planet, or the larger moons and asteroids.
- Any substantial body in orbit around the Sun or other star: a planet, minor planet, or comet.
- Any substantial body associated with the development of planets: a protoplanet, planetesimal.
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