planemo en · NOUN
Pronunciation
- /ˈplæ.nə.moʊ/
Etymology
Contraction of planetary-mass object. Coined by Gibor Basri, Professor of Astronomy at the University of California, Berkeley, (UCB) at the 2003 IAU conference.
Meanings
-
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.
Other groups have also recently identified young, isolated planemos; understanding how such isolated, ultra-low masses form presents a challenge.
2003 December 1, Jacques Lépine, Jane Gregorio-Hetem, Open Issues in Local Star Formation, page 266:
Forms
| Spelling | Features | Labels | Source |
|---|---|---|---|
| planemos | Number=Plur | lexicographic |
Hypernyms
Hyponyms
planet (Hyponyms of planemo) · free-floating planemo (Hyponyms of planemo) · rogue planet (Hyponyms of planemo) · large moon (Hyponyms of planemo) · dwarf planet (Hyponyms of planemo) · sub-brown dwarf (Hyponyms of planemo)
Relateds
Translations (4)
nn planemo (planemo) · tr planemo (planemo) · de Objekt planetarer Masse (planemo) · pl planemo (planemo)
wikipedia: Gibor Basri · wikipedia: International Astronomical Union · wikipedia: University of California, Berkeley