|DATABASE > DATABANKS > PLANETS > Class J - Geo Morteus|
Orbits in sun's cold zone with a mass of 50 to 4000 Earths. The atmosphere is mostly hydrogen with some helium and methane. A metallic hydrogen core exists at the center. A veil of liquid water may exist at a certain depth within the atmosphere. Planets often have rings at some point and many moons. Jupiter and Saturn fall within this class.