SpazeHot Jupiter, 50 light years away, 51 Peg
51 Peg b
The first planet found around a Sun-like star, in 1995. It whips round its star in four days.
- Distance
- 50.4 light years
- Year
- 4.2 days
- Size
- 1.3 × Jupiter
- Temperature
- 1,056 °C
- Mass
- 193.9 × Earth
- Found
- 1995, Haute-Provence Observatory
Can we live on 51 Peg b?
Air: H₂ 85%, He 14%. Not breathable: you’d need a suit and your own oxygen.
Gravity: 0.98 g. Someone who weighs 70 kg on Earth would weigh 68 kg there.
Temperature: 1,056 °C on average.
Clouds: Silicate and iron clouds, dark from sodium and potassium.
Atmosphere
- H₂ 85%
- He 14%
- H₂O
- CO
- Na
- K
Not measured yet: modelled from its size and temperature