Himalia is the largest irregular satellite of Jupiter, the sixth largest overall in size, and only the four Galilean moons of Jupiter have greater mass. It was discovered by Charles Dillon Perrine at the Lick Observatory on 3 December 1904
Average orbital speed
85 ± ?? km
2.6 g/cm3 (assumed)
1.63 g/cm3 (assuming radius 85 km)
Average surface temperature
and is named after the nymph Himalia, who bore three sons of Zeus (the Greek equivalent of Jupiter).