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LUNE EXTRASOLAIRE [1 record]

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Record 1 2025-05-09

English

Subject field(s)
  • Astronomy
CONT

An exomoon or extrasolar moon is a natural satellite that orbits an exoplanet or other non-stellar extrasolar body.

Key term(s)
  • extra-solar moon

French

Domaine(s)
  • Astronomie
DEF

Satellite naturel d'une exoplanète.

CONT

Certaines [exoplanètes] sont en orbite dans la zone habitable de leur étoile (la zone où de l'eau liquide peut exister), mais la plupart sont des géantes gazeuses, impropres à la vie. Possèdent-elles tout de même des satellites, ou exolunes, qui pourraient abriter la vie? La question alimente de nombreuses recherches, notamment depuis qu'on a montré il y a quatre ans que les exolunes assez massives sont détectables par le télescope spatial Kepler, lancé en 2009.

OBS

exolune : désignation et définition publiées au Journal officiel de la République française le 26 janvier 2025.

Key term(s)
  • lune extra-solaire

Spanish

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