Asteroid, S-type
Juno
One of the first asteroids ever found, in 1804, and among the brightest in the belt.
- Size
- 247 km
- Orbit
- 4.4 years
- Distance from Sun
- 2 to 3.4 AU
- Day
- 7.2 hours
- Reflects
- 21% of sunlight
Can we live on Juno?
Air: none to speak of. You’d live in sealed, pressurised habitats.
Ground: Silicate rock: olivine and pyroxene with nickel-iron.
Atmosphere
- None to speak of
Measured by ground spectra