Planemo
Definition, Meaning & Examples
Pronunciation /ˈplæ.nə.moʊ/ · Part of speech noun
Quick meaning: Planemo is a noun meaning (astronomy) an astronomical object with enough mass to achieve hydrostatic equilibrium, but not enough to initiate core fusion at any time in its existence. That is, it is rounded in shape and is smaller than a star. Planemos include planets, dwarf planets, and the larger moons of the Solar System (satellite planets), but also sub-brown dwarfs and rogue planets between the stars.
Meaning
(astronomy) an astronomical object with enough mass to achieve hydrostatic equilibrium, but not enough to initiate core fusion at any time in its existence. That is, it is rounded in shape and is smaller than a star. Planemos include planets, dwarf planets, and the larger moons of the Solar System (satellite planets), but also sub-brown dwarfs and rogue planets between the stars.
Example Sentences
Other groups have also recently identified young, isolated planemos; understanding how such isolated, ultra-low masses form presents a challenge.
Word Forms
- planemos
Related Words
Related dictionary entries include planet, protoplanet, planetoid, planetesimal, mesoplanet, quasi-planet.
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Sources & Attribution
FreeDictionaryAPI.com / Wiktionary · Original source · CC BY-SA 4.0
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