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 T - Ultragiant


Age: 2-10 billion years

Diameter: 50-120 million km

Location: Cold Zone

Surface: Tenuous, composed of gaseous hydrogen and hydrogen compounds; radiates considerable heat

Atmosphere: Zones vary in termperature, pressure and composition; water vapor may be present

Life-Forms: Unknown

Class T planets generally are found in a star's cold zone. Essentially they are the same as Class S planets, differing only in size, which ranges from 50 to 120 million kilometers in diameter. Their high core temperatures radiate considerable heat, causing water to be present in vapor form. The harsh environment makes them unsuitable for humanoid life.



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