Note: Any Gas Giant with a diameter of greater than 140 km is a candidate for a brown dwarf if dense enough. Electrically charged worlds, pulsar worlds, etc. Exotic geological structure or atmosphere. World that does not fit into any other category. Hydrogen, Helium, lithium with mix of other gasses. With a bit more mass these worlds would have been stars. Pressure and limited unsustained internal fusion provides heat. low density ultragiants, often less dense than water. Planet resulting from the stripping away of a gas giant’s atmosphere often by proximity to a star. These gasses, like oxygen, could support life. Metallic, Oxygen, nitrogen, Rocky Trace gasses Metallic, Oxygen, nitrogen, Rock Trace gasses Metallic Metallic, Chlorine, Fluorine, Rock Other reactive gasses. Hostile/Primitive ecosystem.Įxtensive plant and animal life often flourishes
Metallic, Carbon dioxide, oxyRock gen, argon, nitrogenīarely habitable. Alternately they may be composed of more exotic elements such as heavy metallic gasses, Limited water.
5 au or orbit 1 are known as Hot Gas Giants and are in the process of having their atmosphere stripped away. Extremely dry, little to no natural precipitation. During cooling planet formed crystalline structures Less than 10% hydrosphere. High concentration of oxygen silicone compounds. Intense internal heat, perhaps from highly radioactive core or tidal forces. Life might be possible if water is present Small rocky world or moon. Planet contains hydrocarbons, carbon monoxide and other carbon compounds. Hydrogen, Helium with mix of other gasses. Metallic, Oxygen, nitrogen, arRock gon, trace gasses Metallic, Thin hydrocarbon comCarbon pounds Often a very young and newly formed world.Īlso known as dwarf planets. Negligible to thick Methane, Hydrocarbons
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