exomoon en · NOUN
Etymology
From exo- + moon.
Meanings
-
A moon that is outside the Solar System (our solar system).
Of course we can't detect exomoons now (or for a long while), but could planets like 51 Peg b have any moons? Wouldn't the star strip them off? I don't suppose there can be a moon around a planet that orbits in more time than it takes that planet to orbit its star.
2001 July 14, Robert Casey, “Moons around "hot Jupiter" exoplanets, possible?”, in sci.astro.research (Usenet), retrieved 20 Mar 2019, message-ID <mt2.0-23734-995099843@star.bris.ac.uk>:Now we get exoplanets, dwarf planets, rogue planets, and (exo)moons. That's ok, but then comes the utter silliness: none of them are planets. Even those bigger than Jupiter aren't planets.
2006 August 27, Jens Egon Nyborg, “Re: It's official--Jupiter is now a dwarf planet!”, in rec.arts.sf.written,rec.arts.sf.science (Usenet), retrieved 20 Mar 2019, message-ID <xweIg.30$fR6.17@news.get2net.dk>:
Forms
| Spelling | Features | Labels | Source |
|---|---|---|---|
| exomoons | Number=Plur | lexicographic |
Deriveds
Relateds
exoplanet · exocomet · exozodiacal
Synonyms
exosolar moon · extrasolar moon
Translations (21)
pl egzoksiężyc (moon of an extrasolar planet) · de Exomond (moon of an extrasolar planet) · es satélite extrasolar (moon of an extrasolar planet) · hi बहिर्चंद्र (moon of an extrasolar planet) · es luna extrasolar (moon of an extrasolar planet) · gl exolúa (moon of an extrasolar planet) · it luna extrasolare (moon of an extrasolar planet) · pt lua extrassolar (moon of an extrasolar planet) · fr satellite extrasolaire (moon of an extrasolar planet) · fi eksokuu (moon of an extrasolar planet) · de extrasolarer Mond (moon of an extrasolar planet) · nrf exoleune (moon of an extrasolar planet) · pt exolua (moon of an extrasolar planet) · fr exosatellite (moon of an extrasolar planet) · fr exolune (moon of an extrasolar planet) · it satellite extrasolare (moon of an extrasolar planet) · es exoluna (moon of an extrasolar planet) · gl lúa extrasolar (moon of an extrasolar planet) · fr lune extrasolaire (moon of an extrasolar planet) · el εξωφεγγάρι (moon of an extrasolar planet) · it esoluna (moon of an extrasolar planet)