First detection of a distinct silicate clouds on the day side of hot Jupiter

18. 9. 2024

First detection of a distinct silicate clouds on the day side of hot Jupiter

Star system: HD 189733 A | Distance from the Sun: 64.5 light years

James Webb detected quartz in the atmosphere of exoplanet HD 189733 b. Hot Jupiter HD 189733 b orbits a nearby star HD 189733 that is smaller than the Sun and lies only 64 light years away. The planet orbits close to the star with period only 2.2 days. The temperature in its atmosphere rises to scorching 1000 °C.

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Stars Exoplanets

Scientific study

Quartz Clouds in the Dayside Atmosphere of the Quintessential Hot Jupiter HD 189733 b external link

Stars mentioned

HD 189733 A

K2V C, Orange star

mass: 0.81 M☉

radius: 0.7 R☉

distance: 64.5 ly

stars in the system: 2

exoplanets: 1

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