exomoon

exomoon

English

Etymology

exo- +‎ moon

Noun

exomoon (plural exomoons)

1. (astronomy) A moon that is outside the Solar System (our solar system).
   • 2001 July 14, Casey, Robert, “Moons around "hot Jupiter" exoplanets, possible?”, in sci.astro.research, Usenet‎, retrieved 2019-03-20, message-ID <[e-mail]>:

     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.

   • 2006 August 27, Nyborg, Jens Egon, “Re: It's official--Jupiter is now a dwarf planet!”, in rec.arts.sf.written,rec.arts.sf.science, Usenet‎, retrieved 2019-03-20, message-ID <xweIg.30$[e-mail]>:

     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.

Synonyms

• extrasolar moon
• exosolar moon

Derived terms

• exomoonologist
• exomoonology

Related terms

• exoplanet
• exocomet
• exozodiacal

Translations

moon of an extrasolar planet

Finnish: eksokuu French: exolune (fr) f, lune extrasolaire f, satellite extrasolaire m, exosatellite m Galician: exolúa f, lúa extrasolar f German: Exomond m, extrasolarer Mond m

Italian: esoluna f, satellite extrasolare m, luna extrasolare f Norman: exoleune f Portuguese: exolua (pt) f, lua extrassolar f Spanish: exoluna f, luna extrasolar f, satélite extrasolar m