James Webb observations of the nearby rocky exoplanet Gliese 486 b suggest it has no thick atmosphere

28. 8. 2024

James Webb observations of the nearby rocky exoplanet Gliese 486 b suggest it has no thick atmosphere

Star system: Gliese 486 | Distance from the Sun: 26.4 light years

This is the most precise measurement yet of terrestrial exoplanet's thermal emission with JWST. Gliese 486 is a red dwarf only 26 light years from the Sun. The exoplanet Gliese 486 b orbits the star once every 36 hours. It is bigger, denser and hotter than Earth.

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No Thick Atmosphere on the Terrestrial Exoplanet Gl 486b external link

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Gliese 486

M3.5Ve C, Red dwarf

mass: 0.32 M☉

radius: 0.3 R☉

distance: 26.4 ly

stars in the system: 1

exoplanets: 1

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Gliese 486 26.4 ly		Stellar Abundances as Probes of Rocky Exoplanet Interiors: The Mantle Composition and Mineralogy of GJ 486b 23. 8. 2026
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