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 B - Geomorteus


Age: 0-10 billion years

Diameter: 1,000 - 10,000 km

Location: Hot Zone

Surface: Partially molten, high surface temperature

Atmosphere: Extremely tenuous, few chemically active gases

Life-Forms: None known

Example: Mercury

Class B planets are found in a star's hot zone. Smaller than Earth, they range in size from 1,000 to 10,000 kilometers in diameter. Due to their close proximty to a star they have a high surface temperature, and an extremely tenuous atmosphere with few chemically active gases.

The planet Mercury in the Earth's star system is a Class B planet.



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