Category:Class F

Geometallic
Class F, or Geometallic worlds are the second stage in the evolution of habitable planets, ranging in size between ten to fifteen thousand kilometers in diameter. Class F planets are normally found within a star systems ecosphere. These worlds are adolescents, only being one to three billion years old. Geometallic planets have solid surfaces which are covered in huge volcanic features and temperatures reaching close to five hundred Kelvin. Class F worlds have lost their primordial atmospheres, but Volcanic out gassing and other processes have formed an new thick atmosphere, one made out of Carbon Dioxide and various other volcanic gasses. As the planet cools steam expelled from volcanoes, as well as water deposited by collisions with other objects eventually condenses into liquid water, eventually giving rise to seas and oceans, in which simple bacteria can thrive. Sometimes Life is present on these worlds, these lifeforms may possibly give rise to complex ecosystems. When the planet’s core is sufficiently cool Class F worlds are reclassified as Class G worlds.