Trekipedia

Planet, Class-O

Pelagic. Age ranged from 3-10 billion years. Diameter was 10,000 to 15,000 km. Typically located in the Ecosphere of a planetary system. Liquid water covered 80% or more of the surface area, atmosphere consisted of nitrogen, oxygen, and trace elements. May have contained aquatic vegetation, animal life, and possibly humanoids.^[1]