EntityQ928495· pop 27· linked from 261 articlesChthonian planetSign in to savehypothetical class of celestial objects resulting from the stripping away of a gas giant's hydrogen and helium atmosphere and outer layersConnectionslist of planet typesEntityouter spaceEntitycosmic dustEntityhot JupiterEntityplanetary habitabilityEntityhot NeptuneEntitylist of extrasolar planet extremesEntitylist of extrasolar planetsEntitystarEntityplanetEntityGreekEntityhydrogenEntityheliumEntitymetalEntityrockEntityatmosphereEntitydwarf planetEntityEuropean Space AgencyEntityKuiper BeltEntityasteroid beltEntityCategoriesHypothetical planet types