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Exolunes
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Exolunes

Les exolunes sont des satellites naturels orbitant autour de planètes en dehors de notre système solaire. Tout comme notre Lune accompagne la Terre, les exolunes gravitent autour d'exoplanètes lointaines. Leur détection est extrêmement difficile : c'est comme essayer de repérer un moucheron tournant autour d'une luciole près d'un phare lointain. Alors que nous connaissons des centaines de lunes dans notre système, nous n'avons que des candidats prometteurs comme Kepler-1625b-i et Kepler-1708b-i. Dans les systèmes jeunes, les scientifiques observent des disques de poussière où ces lunes se forment encore. Elles pourraient être cruciales pour la vie car elles peuvent offrir des conditions stables.
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Latest news from Exolunes

Radial velocity reveals for the first time planetary mass object around brown dwarf CD-35 2722 B
icon7. 7. 2026
iconÉtoiles | Exoplanètes | Naines brunes | Exolune
Image: Radial velocity reveals for the first time planetary mass object around brown dwarf CD-35 2722 B
Evidence for satellites orbiting the brown dwarf CD-35 2722 B has been identified using precise light measurements. While thousands of planets have been found orbiting stars, satellites around objects outside our solar system—known as exosatellites—have remained elusive and controversial. This study presents a strong detection of at least one, and possibly two, massive objects circling this brown dwarf, providing new data on how such systems form and evolve. The research utilized radial v...
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Radial velocity study puts upper limits on massive moons around Beta Pictoris b
icon4. 6. 2026
iconÉtoiles | Exoplanètes | Exolune
Image: Radial velocity study puts upper limits on massive moons around Beta Pictoris b
Radial velocity monitoring of Beta Pictoris b sets new upper limits on potential massive exomoons. While no moon was detected, the data constrains moon masses to 80 Earth masses at short periods and 1 Jupiter mass at longer periods, with future improvements planned....
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Exomoon signal in the Kepler 1513 system might be caused by a second exoplanet
icon5. 10. 2023 (accepté)
iconÉtoiles | Exoplanètes | Kepler | Exolune
Image: Exomoon signal in the Kepler 1513 system might be caused by a second exoplanet
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