Planetary Classifications
| Class (Vulcan Name) |
Description | Surface | Atmosphere |
|---|---|---|---|
| Class A (Ayhan) | Geothermal | Partially molten | Hydrogen compounds |
| Class B (Balev) (ex: Mercury) |
Geomorteus | Partially molten, high temperature | Extremely tenuous |
| Class C (Chu’lak) (ex: Pluto) |
Geoinactive | Low temperature | Frozen |
| Class D (Denak) (ex: Luna) |
Asteroid/Moon | Barren and cratered | None or very tenuous |
| 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: Vulcan) |
Geocrystalline | Crystallizing | Carbon dioxide, some toxic gases |
| Class H (Harauk) | Desert | Hot and arid, little or no water | May contain heavy gases and metal vapors |
| Class I (Ivek) | Gas Supergiant | Tenuous, comprised of gaseous hydrogen and hydrogen compounds, radiates heat | Variable pressure and composition, may contain water vapor |
| 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-T (Suk, 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 |