3 Juno

large asteroid in the asteroid belt, the third asteroid discovered, in 1804, by German astronomer Karl Harding

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]

June as seen by 100-inch Hooker telescope at Mt. Wilson Observatory in four wavelength bands
Size comparison: the first 10 asteroids discovered, profiled against Earth's Moon. Juno is third from the left.

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

References