3 Juno

3 Juno (symbol: ) is a main belt asteroid discovered by Karl Ludwig Harding on September 1, 1804.^[1] Juno was the third asteroid discovered in the Solar System and is named after Juno, the Roman goddess that is the queen of all gods.^[2]

Size comparison: the first 10 asteroids discovered, profiled against Earth's Moon. Juno is third from the left.

Juno as seen by 100-inch Hooker telescope at Mt. Wilson Observatory in four wavelength bands.

Juno is an S-type asteroid,^[3] and is estimated to contain 1% of the total mass of the asteroid belt.^[4]

Juno orbits at a slightly closer distance to the Sun than Ceres or Pallas. Its orbit is inclined at around 12° to the ecliptic, but has very big eccentricity in its orbit. ^[5]

Juno is in the Juno clump, a group of asteroids that share similar orbits, the biggest asteroid of the Juno clump is (32326) 2000 QO62 being 6 kilometers. ^[6]