Planet Classification

Standard planet classifications.
===class A - geo-thermal===
Age: 0-2 billion years
*Diameter: 1,000 - 10,000 km
*Location: Ecosphere / Cold Zone
*Surface: Partially molten
*Atmosphere: Primarily hydrogen compounds
*Evolution: Cools to become Class-C
*Life-Forms: None
*Example: Gothos
===Class B - geo-morteus===
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
*Example: Mercury
===Class C -ice body===
Age: 2-10 billion years
*Diameter: 1,000 < km
*Location: Cold Zone
*Surface: Ices mixed with occasional rocks.
*Atmosphere: Frozen
*Life-Forms: None
*Examples: Pluto, Psi 2000
===Class D -asteroid / moon===
*Age: 2-10 billion years
*Diameter: 100 - 3,000 km
*Location: Anywhere
*Surface: Barren and cratered
*Atmosphere: None or very tenuous
*Life-Forms: None
*Example: Moon (Sol IIIa), Lunar V (Bajor VIIe)
===Class E - geo-plastic===
Age: 0-2 billion years
*Diameter: 10,000 - 15,000 km
*Location: Ecosphere
*Surface: Molten, high surface temperature
*Atmosphere: Hydrogen compounds and reactive gases
*Evolution: Cools to become Class-F
*Life-Forms: Carbon-cycle (Excalbian)
*Example: Excalbia
===Class F - geo-metallic===
Age: 1-3 billion years
*Diameter: 10,000 - 15,000 km
*Location: Ecosphere
*Surface: Volcanic eruptions due to molten core
*Atmosphere: Hydrogen compounds
*Evolution: Cools to become Class-G
*Life-Forms: Silicon-based (Horta)
*Example: Janus VI
===Class G - geo-crystalline===
Age: 3-4 billion years
*Diameter: 10,000 - 15,000 km
*Location: Ecosphere
*Surface: Still crystallizing
*Atmosphere: Carbon dioxide, some toxic gases
*Evolution: Cools to become Class-K, L, M, N, O, or P
*Life-Forms: Primitive single-celled organisms
*Example: Delta-Vega
===Class H - desert===
Age: 4-10 billions years
*Diameter: 8,000 - 15,000 km
*Location: Hot Zone / Ecosphere / Cold Zone
*Surface: Hot and arid, little or no surface water
*Atmosphere: May contain heavy gases and metal vapors
*Life-Forms: Drought- and radiation-resistant plants, animal life
*Example: Rigel XII, Tau Cygna V
===Class I- gas supergiant===
Age: 2-10 billion years
*Diameter: 140,000 - 10 million km
*Location: Cold Zone
*Surface: Tenuous, comprised of gaseous hydrogen and hydrogen compounds; 
radiates heat
*Atmosphere: Zones vary in temperature, pressure and composition; water 
vapor may be present
*Life-Forms: Unknown
*Example: Q'tahL
===Class J - gas giant===
Age: 2-10 billion years
*Diameter: 50,000 - 140,000 km
*Location: Cold Zone
*Surface: Tenuous, comprised of gaseous hydrogen and hydrogen compounds; 
radiates some heat
*Atmosphere: Zones vary in temperature, pressure and composition
*Life-Forms: Hydrocarbon-based (Jovian)
*Example: Jupiter, Saturn
===Class K - adaptable===
Age: 4-10 billion years
*Diameter: 5,000 - 10,000 km
*Location: Ecosphere
*Surface: Barren, little of no surface water
*Atmosphere: Thin, mostly carbon dioxide
*Life-Forms: Primitive single-celled organisms; adaptable for humanoid 
colonization through the use of pressure domes
*Example: Mars, Mudd
===Class L - marginal===
Age: 4-10 billion years
*Diameter: 10,000 - 15,000 km
*Location: Ecosphere
*Surface: Rocky and barren, little surface water
*Atmosphere: Oxygen/argon, high concentration of carbon dioxide
*Life-Forms: Limited to plant life; suitable for humanoid colonization
*Example: Indri VIII
===Class M - terrestrial===
Age: 3-10 billion years
*Diameter: 10,000 - 15,000 km
*Location: Ecosphere
*Surface: Surface water abundant; if water or ice covers more than 80% of 
surface, planet is considered Class-O or Class-P
*Atmosphere: Nitrogen, oxygen, trace elements
*Life-Forms Extensive vegetation, animal life, humanoids
*Example: Earth, Vulcan, Cardassia Prime
===Class N - reducing===
Age: 3-10 billions years
*Diameter: 10,000 - 15,000 km
*Location: Ecosphere
*Surface: High surface temperature due to greenhouse effect; water exists 
only as vapor
*Atmosphere: Extremely dense, carbon dioxide and sulfides
*Life-Forms: Unknown
*Example: Venus
===Class O - pelagic===
Age: 3-10 billion years
*Diameter: 10,000 - 15,000 km
*Location: Ecosphere
*Surface: Liquid water covers 80% or more of surface area
*Atmosphere: Nitrogen, oxygen, trace elements
*Life-Forms: Aquatic vegetation, animal life, humanoids
*Example: Argo
===Class P - glaciated===
Age: 3-10 billion years
*Diameter: 10,000 - 15,000 km
*Location: Ecosphere
*Surface: Water ice covers 80% or more of surface area
*Atmosphere: Nitrogen, oxygen, trace elements
*Life-Forms: Hardy vegetation, animal life, humanoids
*Example: Exo III, Breen Homeworld
===Class Q - variable===
Age: 2-10 billion years
*Diameter: 4,000 - 15,000 km
*Location: Hot Zone / Ecosphere / Cold Zone
*Surface: Ranges from molten to water and/or carbon dioxide ice, due to 
eccentric orbit or variable output of star
*Atmosphere: Ranges from tenuous to very dense
*Example: Genesis Planet
===Class R - rogue===
Age: 2-10 billion years
*Diameter: 4,000 - 15,000 km
*Location: Interstellar space, cometary halos
*Surface: May be temperate due to geothermal venting
*Atmosphere: Primarily volcanic outgassing
*Life-Forms: Non-photosynthetic plants, animal life
*Example: Dakala
===Class S/T - near star===
Age: 2-10 billion years
*Diameter: 10-50 million km (Class-S)<BR>
50-120 million km (Class-T)
*Location: Cold Zone
*Surface: Tenuous, composed of gaseous hydrogen and hydrogen compounds; 
radiates considerable heat
*Atmosphere: Zones vary in temperature, pressure and composition; water 
vapor may be present
*Life-Forms: Unknown
===Class Y - demon===
Age: 2-10 billion years
*Diameter: 10,000 - 50,000 km
*Location: Hot Zone / Ecosphere / Cold Zone
*Surface: Temperatures can exceed 500°K
*Atmosphere: Turbulent, saturated with toxic chemicals and thermionic 
radiation
*Life-Forms: Mimetic (Delta Quadrant)
Category:Lexicon
Category:Planets
Category:Treknical