Surface features include Gomul Catena, located within the Valhalla multi-ring structure, and the even longer Gipul Catena, a chain of craters over 600 kilometers long.
This celestial body is composed of roughly equal parts of rock and water ice, with small amounts of volatile frozen ammonia. Surface features include Gomul Catena, located within the Valhalla multi-ring structure, and the even longer Gipul Catena, a chain of craters over 600 kilometers long. Both chains formed from the impact of comets fragmented by the tidal forces of the object around which this satellite orbits. Yet as the outermost of the Galilean moons, it experiences neither orbital resonance nor tidal heating. FTP, name this second-largest moon of Jupiter and third-largest moon in the solar system, named after a nymph who first turned into a bear and then into the constellation Ursa Major.
This celestial body is composed of roughly equal parts of rock and water ice, with small amounts of volatile frozen ammonia.
{Callisto}