Hot Neptune, 262 light years away, LTT 9779
LTT 9779 b
Covered in shiny metal clouds that reflect 80% of light: the shiniest planet known.
- Distance
- 262 light years
- Year
- 19 hours
- Size
- 4.7 × Earth
- Temperature
- 1,705 °C
- Mass
- 29.3 × Earth
- Found
- 2020, Transiting Exoplanet Survey Satellite
Can we live on LTT 9779 b?
Air: H₂, He. Not breathable: you’d need a suit and your own oxygen.
Gravity: 1.32 g. Someone who weighs 70 kg on Earth would weigh 92 kg there.
Temperature: 1,705 °C on average.
Clouds: Metallic clouds reflect 80% of starlight, a giant mirror.
Atmosphere
- H₂
- He
Measured by CHEOPS