Nomenclature in the outer Solar System
Semi-major axis: | smaller than or equal to that of the innermost gas giant (Jupiter) beyond the frost line (i.e. not counting gas giants scattered inwards, e.g. hot Jupiters) | between those of the gas giants (Jupiter and Neptune) | larger than or equal to that of the outermost (regular) planet (Neptune) | N/A | ||||||||||||
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smaller than that of the innermost planet (Mercury) | between that of the innermost planet and the asteroid belt | member of the belt inner to the innermost gas giant | co-orbital with the innermost gas giant (Jupiter) | co-orbital with the outermost (regular) planet (Neptune) | member of the belt outer to the outermost (regular) planet | significant scatters by | ||||||||||
perihelion inner to the innermost gas giant | perihelion and aphelion between those of the gas giants | aphelion outer to the outermost (regular) planet (Neptune) | x:y resonance | non-resonant | also a planet inner to the outermost (regular) planet | only the outermost (regular) planet | none current (e.g. perihelion lifted by gravitational interaction with a massive dwarf planet or by a bound fusor or planetar) | unbound fusors | ||||||||
Planemos | Satellite planemos | |||||||||||||||
Planets | Planetars | |||||||||||||||
Dwarf planets and irregular bodies | asteroids | distant minor planets | ||||||||||||||
vulcanoids | inner asteroid (?) | asteroid-belt asteroid | Jupiter Trojans | centaurs | Neptune trojans | trans-Neptunians | ||||||||||
Kuiper-belt object | ||||||||||||||||
resonant Kuiper-belt object | classical Kuiper-belt object | transient TNO (ext-centaur) | scattered-disc object | scattered–extended / detached object | Oort-cloud object |