Asteroid
Juno
TypeAsteroid
Mass~3 × 10¹⁹ kg
Diameter247 km
Orbital Radius266.8 million km
Orbital Period1,596 days
Rotation Period7.21 hours
Known Moons0
Surface Gravity~0.02 m/s²
Average Temp-110 °C
AtmosphereNone
Discovered ByKarl Harding
Discovery Year1804
About Juno
The third asteroid ever found, once ranked as a full planet. A cracked, irregular chunk of rock roughly 250 km across. Its orbit is fairly inclined, lifting it well above the plane of the belt. Bright enough for binoculars at favorable oppositions.
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