Planetary Classifications

Class A - Geothermal

Class B - Geomorteus

Class C - Geoinactive

Class D - Asteriod/Moon

Class E - Geoplastic

Class F - Geometallic

Class G - Geocrystalline

Class H - Desert

Class I - Gas Supergiant

Class J - Gas Giant

Class K - Adaptable

Class L - Marginal

Class M - Terrestrial

Class N - Reducing

Class O - Plegaic

Class P - Glaciated

Class Q - Variable

Class R - Rogue

Class S - Ultragiant

Class T - Ultragiant

Class Y - Demon


Class D - Asteriod/Moon


Age: 2-10 billion years

Diameter: 100 - 1,000 km

Location: Hot, Ecosphere, and Cold Zones; found primarily in orbit of larger planets or in asteroid fields

Surface: Barren and cratered

Atmosphere: None or very tenuous

Life-Forms: None known

Examples: Moon, Lunar V

Class D planets are found in any zone within a star system. Generally they are found in orbit around larger planets, or in asteroid fields. Quite small, they are no bigger than 1,000 kilometers in diameter. The surface of Class D planets is barren and heavily cratered, and no atmosphere is present, making them unsuitable for life.

Earth's Moon is Class D, as is Lunar V, the moon orbiting the fifth planet of Bajor as seen in "The Hunted" (TNG), and "The Siege" (DS9).



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