CLASS A - GEO-THERMAL Average 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	Planets in this Class: GOTHOS
	CLASS B - GEO-MORTEUS Average 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	Planets in this Class: MERCURY
	CLASS C - GEO-INACTIVE Average Age: 2-10 billion years Diameter: 1,000 - 10,000 km Location: Ecosphere / Cold Zone Surface: Low surface temperature Atmosphere: Frozen Life-Forms: None	Planets in this Class: PLUTO PSI 2000
	CLASS D -ASTEROID / MOON Average Age: 2-10 billion years Diameter: 100 - 1,000 km Location: Hot Zone / Ecosphere / Cold Zone; found primarily in orbit of larger planets or in asteroid fields Surface: Barren and cratered Atmosphere: None or very tenuous Life-Forms: None	Planets in this Class: MOON (EARTH) LUNAR V (BAJOR)
	CLASS E - GEO-PLASTIC Average 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)	Planets in this Class: EXCALIBA
	CLASS F - GEO-METALLIC Average 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)	Planets in this Class: JANUS VI
	CLASS G - GEO-CRYSTALLINE Average 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	Planets in this Class: DELTA-VEGA
	CLASS H - DESERT Average 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	Planets in this Class: RIGEL XII TAU CYGNA V
	CLASS I - GAS SUPERGIANT Average 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	Planets in this Class: Q'TAHL
	CLASS J - GAS GIANT Average 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)	Planets in this Class: JUPITER SATURN
	CLASS K - ADAPTABLE Average Age: 4-10 billion years Diameter: 5,000 - 10,000 km Location: Ecosphere Surface: Barren, little to no surface water Atmosphere: Thin, mostly carbon dioxide Life-Forms: Primitive single-celled organisms; adaptable for humanoid colonization through the use of pressure domes	Planets in this Class: MARS
	CLASS L - MARGINAL Average 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	Planets in this Class: INDRI VIII
	CLASS M - TERRESTRIAL (Minshara Class) Average 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	Planets in this Class: EARTH BAJOR CARDASSIA PRIME
	CLASS N - REDUCING Average 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	Planets in this Class: VENUS
	CLASS O - PELAGIC Average 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	Planets in this Class: ARGO PACIFICA
	CLASS P - GLACIATED Average Age: 3-10 billion years Diameter: 10,000 - 15,000 km Location: Ecosphere Surface: Ice covers 80% or more of surface area Atmosphere: Nitrogen, oxygen, trace elements Life-Forms: Hardy vegetation, animal life, humanoids	Planets in this Class: EXO III BREEN HOMEWORLD
	CLASS Q - VARIABLE Average 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 Life-Forms: Variable, depending on planetary conditions	Planets in this Class: GENESIS PLANET
	CLASS R - ROGUE Average 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 gasses Life-Forms: Non-photosynthetic plants, animal life	Planets in this Class: DAKALA
	CLASS T - GAS ULTRAGIANT Average Age: 2-10 billion years Diameter: 10 million - 50 million 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)	Planets in this Class: SOKOL VI
	CLASS Y - DEMON Average 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: Heat resistant and highly adaptive	Planets in this Class: THOLIAN HOMEWORLD

List of Civilization Levels
Level	Short Definition	Explanation
0	Stone Age	Tools created are made of stone
1	Copper Age	Tools created are made of copper
2	Bronze Age	Tools created are made of bronze
3	Iron Age	Tools created are made of iron
4	Low Industrial Age	Civilization develops basic machines & tools to help with everyday tasks
5	Industrial Age	Civilization develops more complex machines & tools to help with everyday tasks
6	Technological Age	Civilization has discovered computers
7	Global Age	Civilization has discovered and implemented global technologies
8	Nuclear Age	Civilization has discovered how to harvest the power of the atom
9	Space Age	Civilization has begun exploring beyond the confines of its planet
10	Space Exploration	Civilization has begun exploring beyond the confines of its solar system
11	Low-Warp	Civilization possesses ships capable of Warp speed up to Warp 3
12	Warp	Civilization possesses ships capable of Warp speed up to Warp 6
13	High-Warp	Civilization possesses ships capable of Warp speed up to Warp 9
14	Trans-Warp Travel	Civilization possesses ships capable of Trans-Warp speed
15	Ion Age	Civilization has discovered how to harvest ionic energy