Planetary Classifications
| Class (Vulcan Name) |
Description | Surface | Atmosphere | Image |
|---|---|---|---|---|
| Class A (Ayhan) (ex: Gothos) |
Geothermal Class A planets are small, normally less than 10,000 km in diameter and extremely geologically unstable. Because of this they tend to be quite young planets, normally only in their first billion years of existence. Due to volcanic activity they have high amounts of carbon dioxide in their atmosphere that keeps them extremely hot. When this activity stops the planets tend to become Class C planets. Even protected surface missions are not advised, there is no natural life of any sort. |
Partially molten | Hydrogen compounds | File:Class A.jpg |
| Class B (Balev) (ex: Mercury) |
Geomorteus Class B planets are small, normally less than 10,000 km in diameter and highly unsuited for humanoid life. They are normally quite close to the systems core with thin atmospheres of helium and sodium. Due to this make-up and the close distance to the sun or suns, they have mostly molten surfaces. During daylight, because of the thin atmosphere it can reach over five hundred degrees Kelvin, at night it can get as low as 73 Kelvin. With these extremes, life has never been known to evolve on these planets, however they have been known to occasionally have bacterial life on their surface from comet impacts. |
Partially molten, high temperature | Extremely tenuous | File:Class B.jpg |
| Class C (Chu’lak) (ex: Pluto) |
Geoinactive Almost all Class C planets start their lives as Class A planets and change once they stop being geologically active. Losing the atmosphere they had, they become completely barren, just a rock in space. Being more stable than Class A, they can be colonized with pressure domes and mined for resources. They are still normally less than 10,000 km in diameter and have limited gravity. |
Low temperature | Frozen | File:Class c.jpg |
| Class D (Denak) (ex: Luna) |
Asteroid/Moon Class E planets are the first stage of the development of a habitable planet. From core to crust they are molten but cooling. They can have a range of atmosphere but tend to have high levels of carbon dioxides, hydrogen and helium. Being larger than a Class B at between 1Mn and 1.5Mn they are more able to retain their atmosphere, while still having very high temperatures and being hazardous to almost all forms of life. If the planet starts to cool to the extend they develop a crust they become a Class F planet. |
Barren and cratered | None or very tenuous | File:Class d.jpg |
| Class E (Evoras) (ex: Excalbia) |
Geoplastic | Molten, high temperature | Hydrogen compounds and reactive gases | |
| Class F (Falor) (ex: Janus IV) |
Geometallic | Volcanic | Hydrogen compounds | |
| Class G (Galsh) (ex: Delta Vega) |
Geocrystalline | Crystallizing | Carbon dioxide, some toxic gases | |
| Class H (Harauk) (ex: Vulcan) |
Desert | Hot and arid, little or no water | May contain heavy gases and metal vapors | |
| Class I (Ivek) (ex: Uranus) |
Ice giant | Cores are mostly made of rock and ice | Layers of water, methane and ammonia | |
| Class J (Jasif-ir) (ex: Jupiter) |
Gas Giant | Tenuous, comprised of gaseous hydrogen and hydrogen compounds, radiates some heat | Variable pressure and composition | |
| Class K (Kesh) (ex: Mars) |
Adaptable | Barren, little or no water | Thin, mostly carbon dioxide | |
| Class L (L’Nel) | Marginal | Rocky and barren, little water | Oxygen/Argon, high concentration of carbon dioxide | |
| Class M (Minshara) (ex: Earth) |
Terrestrial | Water abundant | Nitrogen, Oxygen and trace elements | |
| Class N (Nesheh) (ex: Venus) |
Reducing | High temperature | Extremely dense, carbon dioxide and sulfides | |
| Class O (Ob'taree) | Pelagic | 80%+ water | Nitrogen, Oxygen and trace elements | |
| Class P (Paradaik) (ex: Breen) |
Glaciated | 80%+ water ice | Nitrogen, Oxygen and trace elements | |
| Class Q (Qju'nirr) (ex: Genesis Planet) |
Variable | Various | Tenuous to dense | |
| Class R (Ri'a'gra) | Rogue | Maybe temperate due to geothermal venting | Primarily volcanic outgassing | |
| Class S (Suk) | Hypergiant | Tenuous, comprised of gaseous hydrogen and hydrogen compounds, radiates considerable heat | Variable pressure and composition, may contain water vapor | |
| Class T (Taurik) | Ultragiant | Tenuous, comprised of gaseous hydrogen and hydrogen compounds, radiates considerable heat | Variable pressure and composition, may contain water vapor | |
| Class Y (Yehenik) (ex: Tholia) |
Demon | 500°K+ | Turbulent, saturated with toxic chemicals and therionic radiation |
