Moon of Jupiter
Diameter: 167 km
Distance: 181400 km (mean)
Period: 0.4981 days
Eccentricity: 0.003
Inclination: 0.39°
Magnitude: 14.1

Amalthea is the largest of Jupiter's four inner moons and the reddest object in the solar system. Orbiting within Jupiter's powerful magnetic field, the moon gives out more heat (probbaly from tidal stress) than it receives from the sun. Amalthea was discovered in1892.