Amalthea
A small satellite of Jupiter (number V), discovered by E.E.Barnard in 1892. Images obtained by the Voyager 1 mission showed it as a red-coloured, potato-shaped object. The surface is heavily cratered, the largest depression, Pan, being 90 kilometres (56 miles) across. The red colour is thought to be due to sulphur compounds blown off the satellite Io

See also: Table 6.