SpazeHot Jupiter, 698 light years away, WASP-39
WASP-39 b
The first exoplanet where JWST found carbon dioxide, and chemistry driven by starlight.
- Distance
- 698 light years
- Year
- 4.1 days
- Size
- 1.3 × Jupiter
- Temperature
- 893 °C
- Mass
- 89.3 × Earth
- Found
- 2011, SuperWASP
Can we live on WASP-39 b?
Air: H₂, He. Not breathable: you’d need a suit and your own oxygen.
Gravity: 0.43 g. Someone who weighs 70 kg on Earth would weigh 30 kg there.
Temperature: 893 °C on average.
Clouds: Hazy hydrogen sky; SO₂ made by starlight, the first photochemistry seen on an exoplanet.
Atmosphere
- H₂
- He
- H₂O
- CO₂
- CO
- SO₂
- Na
- K
Measured by JWST