View source for Planetary Classes

= Classifications =
{|
|-
| [[Image:pa.jpg]]
| 
== CLASS A -- (Geothermal) ==
|-
|
|'''Age:''' -- 0 - 2 billion years<br>
'''Diameter:''' -- 1,000 - 10,000 km<br>
'''Location:''' -- Ecosphere / Cold Zone<br>
'''Surface:''' -- Partially molten<br>
'''Atmosphere:''' -- Primarily hydrogen compounds<br>
'''Evolution:''' -- Cools to become Class C<br>
'''Life Forms:''' -- None<br>
'''Example:''' -- Gothos<br>
|-
| [[Image:pb.jpg]]
| 
== CLASS B -- (Geomorteus) ==
|-
|
| '''Age:''' -- 0 - 2 billion years<br>
'''Diameter:''' -- 1,000 - 10,000 km<br>
'''Location:''' -- Ecosphere / Cold Zone<br>
'''Surface:''' -- Partially molten<br>
'''Atmosphere:''' -- Primarily hydrogen compounds<br>
'''Evolution:''' -- Cools to become Class C<br>
'''Life Forms:''' -- None<br>
'''Example:''' -- Mercury<br>
|-
| [[Image:pc.jpg]]
| 
== CLASS C -- (Geoinactive) ==
|-
|
| '''Age:''' -- 2 - 10 billion years<br>
'''Diameter:''' -- 1,000 - 10,000 km<br>
'''Location:''' -- Ecosphere / Cold Zone<br>
'''Surface:''' -- Low surface temperature<br>
'''Atmosphere:''' -- None<br>
'''Evolution:''' -- n/a<br>
'''Life Forms:''' -- None<br>
'''Example:''' -- Pluto, Psi 2000<br>
|-
| [[Image:pd.jpg]]
| 
== CLASS D -- (Asteroid/Moon) ==
|-
|
| '''Age:''' -- 2 - 10 billion years<br>
'''Diameter:''' -- 100 - 1,000 km<br>
'''Location:''' -- Hot Zone / Ecosohere / Cold Zone; found primarily in orbit of larger planets or in asteroid fields<br>
'''Surface:''' -- Barren and cratered<br>
'''Atmosphere:''' -- None or very tenuous<br>
'''Evolution:''' -- n/a<br>
'''Life Forms:''' -- None<br>
'''Example:''' -- Sol III1, Bajor VIIe<br>
|-
| [[Image:pe.jpg]]
| 
== CLASS E --(Geoplastic) ==
|-
|
| '''Age:''' -- 0 - 2 billion years<br>
'''Diameter:''' -- 10,000 - 15,000 km<br>
'''Location:''' -- Ecosphere<br>
'''Surface:''' -- Molten, high surface temperature<br>
'''Atmosphere:''' -- Hydrogen compounds and reactive gases<br>
'''Evolution:''' -- Cools to become Class F<br>
'''Life Forms:''' -- Carbon-cycle (Excaliban)<br>
'''Example:''' -- Excalbia<br>
|-
| [[Image:pf.jpg]]
| 
== CLASS F -- (Geometallic) ==
|-
|
| '''Age:''' -- 1 - 3 billion years<br>
'''Diameter:''' -- 10,000 - 15,000 km<br>
'''Location:''' -- Ecosphere<br>
'''Surface:''' -- Volcanic eruptions due to molten core<br>
'''Atmosphere:''' -- Hydrogen compounds<br>
'''Evolution:''' -- Cools to become Class G<br>
'''Life Forms:''' -- Silicon-based (Horta)<br>
'''Example:''' -- Janus IV<br>
|-
| [[Image:pg.jpg]]
| 
== CLASS G -- (Geocrystaline) ==
|-
|
|'''Age:''' -- 3 - 4 billion years<br>
'''Diameter:''' -- 10,000 - 15,000 km<br>
'''Location:''' -- Ecosphere<br>
'''Surface:''' -- Still crystallizing<br>
'''Atmosphere:''' -- Carbon Dioxide, some toxic gases<br>
'''Evolution:''' -- Cools to become Class K, L, M, N, O or PC<br>
'''Life Forms:''' -- Primitive single-celled organisms<br>
'''Example:''' -- Delta Vega<br>
|-
| [[Image:ph.jpg]]
| 
== CLASS H -- (Desert) ==
|-
|
| '''Age:''' -- 4 - 10 billion years<br>
'''Diameter:''' -- 8,000 - 15,000 km<br>
'''Location:''' -- Hot Zone / Ecosphere / Cold Zone<br>
'''Surface:''' -- Hot and arid, little or no surface water<br>
'''Atmosphere:''' -- May contain heavy gases and metal vapors<br>
'''Evolution:''' -- n/a<br>
'''Life Forms:''' -- Drought- and radiation-resistant plants, animal life<br>
'''Example:''' -- Rigel XII, Tau Cygna V<br>
|-
| [[Image:Pi.jpg]]
| 
== CLASS I -- (Gas Supergiant)  ==
|-
|
| '''Age:''' -- 2 - 10 billion years<br>
'''Diameter:''' -- 140,000 - 10,000,000 km<br>
'''Location:''' -- Cold Zone<br>
'''Surface:''' -- Tenuous, comprised of gaseous hydrogen and hydrogen compounds; radiates heat<br>
'''Atmosphere:''' -- Zones vary in temperature, pressure and composition; water vapor may be present<br>
'''Evolution:''' -- n/a<br>
'''Life Forms:''' -- Unknown<br>
'''Example:''' -- Q'tahL<br>
|-
| [[Image:pj.jpg]]
| 
== CLASS J -- (Gas Giant) ==
|-
|
| '''Age:''' -- 2 - 10 billion years<br>
'''Diameter:''' -- 50,000 - 100,000 km<br>
'''Location:''' -- Cold Zone<br>
'''Surface:''' -- Tenuous, comprised of gaseous hydrogen and hydrogen compounds; radiates heat<br>
'''Atmosphere:''' -- Zones vary in temperature, pressure and composition; water vapor may be present<br>
'''Evolution:''' -- n/a<br>
'''Life Forms:''' -- Hydro-Carbon based (Jovian)<br>
'''Example:''' -- Jupiter, Saturn<br>
|-
| [[Image:Pk.jpg]]
| 
== CLASS K -- (Adaptable) ==
|-
|
| '''Age:''' -- 4 - 10 billion years<br>
'''Diameter:''' -- 5,000 - 10,000 km<br>
'''Location:''' -- Ecosphere<br>
'''Surface:''' -- Barren, little or no surface water<br>
'''Atmosphere:''' -- Thin, mostly carbon dioxide<br>
'''Evolution:''' -- n/a<br>
'''Life Forms:''' -- Primitive single-celled organisms; adaptable for humanoid colonization through the use of pressure domes<br>
'''Example:''' -- Mars, Mudd<br>
|-
| [[Image:Pl.jpg]]
| 
== CLASS L -- (Marginal) ==
|-
|
| '''Age:''' -- 4 - 10 billion years<br>
'''Diameter:''' -- 10,000 - 15,000 km<br>
'''Location:''' -- Ecosphere<br>
'''Surface:''' -- Rocky and barren, little surface water<br>
'''Atmosphere:''' -- Oxygen / Argon, high concentration of carbon dioxide<br>
'''Evolution:''' -- n/a<br>
'''Life Forms:''' -- Limited to plant life; suitable for humanoid colonization<br>
'''Example:''' -- Indri VIII<br>
|-
| [[Image:Pm.jpg]]
| 
== CLASS M -- (Terrestrial) ==
|-
|
| '''Age:''' -- 3 - 10 billion years<br>
'''Diameter:''' -- 10,000 - 15,000 km<br>
'''Location:''' -- Ecosphere<br>
'''Surface:''' -- Surface water abundant; if water or ice covers more than 80% of surface, is considered to be Class O or Calls P<br>
'''Atmosphere:''' -- Nitrogen, Oxygen, trace elements<br>
'''Evolution:''' -- n/a<br>
'''Life Forms:''' -- Extensive vegetation, animal life, humanoids<br>
'''Example:''' -- Earth, Vulcan, Cardassia Prime<br>
|-
| [[Image:Pn.jpg]]
| 
== CLASS N -- (Reducing) ==
|-
|
| '''Age:''' -- 3 - 10 billion years<br>
'''Diameter:''' -- 10,000 - 15,000 km<br>
'''Location:''' -- Ecosphere<br>
'''Surface:''' -- High surface temperature due to greenhouse effect; water exists only as vapor<br>
'''Atmosphere:''' -- Extremely dense; carbon dioxide and sulfides<br>
'''Evolution:''' -- n/a<br>
'''Life Forms:''' -- Unknown<br>
'''Example:''' -- Venus<br>
|-
| [[Image:Po.jpg]]
| 
== CLASS O  -- (Pelagic) ==
|-
|
| '''Age:''' -- 3 - 10 billion years<br>
'''Diameter:''' -- 10,000 - 15,000 km<br>
'''Location:''' -- Ecosphere<br>
'''Surface:''' -- Liquid water covers over 80% or more of surface area<br>
'''Atmosphere:''' -- Nitrogen, Oxygen, Trace elements<br>
'''Evolution:''' -- n/a<br>
'''Life Forms:''' -- Aquatic vegetation, animal life, humanoids<br>
'''Example:''' -- Argo<br>
|-
| [[Image:Pp.jpg]]
| 
== CLASS P  -- (Glaciated) ==
|-
|
| '''Age:''' -- 3 - 10 billion years<br>
'''Diameter:''' -- 10,000 - 15,000 km<br>
'''Location:''' -- Ecosphere<br>
'''Surface:''' -- Water ice covers over 80% or more of surface area<br>
'''Atmosphere:''' -- Nitrogen, Oxygen, trace elements<br>
'''Evolution:''' -- n/a<br>
'''Life Forms:''' -- Hardy vegetation, animal life, humanoids<br>
'''Example:''' -- Exo III<br>
|-
| [[Image:Pq.jpg]]
| 
== CLASS P  -- (Glaciated) ==
|-
|
| '''Age:''' -- 2 - 10 billion years<br>
'''Diameter:''' -- 4,000 - 15,000 km<br>
'''Location:''' -- Hot Zone / Ecosphere / Cold Zone<br>
'''Surface:''' -- Ranges from molten to Water and/or carbon dioxide ice, due to eccentric orbit or variable output of star<br> 
'''Atmosphere:''' -- Ranges from tenuous to very dense<br>
'''Evolution:''' -- Cools to become Class C<br>
'''Life Forms:''' -- n/a<br>
'''Example:''' -- Genesis Planet<br>
|-
| [[Image:Ps-t.jpg]]
| 
== CLASS S-T -- (Ultragiant) ==
|-
|
| '''Age:''' -- 2 - 10 billion years<br>
'''Diameter:''' -- 10,000,000 - 50,000,000 km (Class S) <br>
50,000,000 - 120,000,000 km (Class T)<br>
'''Location:''' -- Cold Zone<br>
'''Surface:''' -- Tenuous, comprised of gaseous hydrogen and hydrogen compounds; radiates considerable heat<br>
'''Atmosphere:''' -- Zones vary in temperature, pressure and composition; water vapor may be present<br>
'''Evolution:''' -- n/a<br>
'''Life Forms:''' -- Unknown<br>
'''Example:''' -- n/a<br>
|-
| [[Image:Py.jpg]]
| 
== CLASS Y -- (Demon) ==
|-
|
| '''Age:''' -- 2 - 10 billion years<br>
'''Diameter:''' -- 10,000,000 - 50,000,000 km <br>
'''Location:''' -- Hot Zone / Ecosohere / Cold Zone<br>
'''Surface:''' -- Temperature can exceed 500 k<br>
'''Atmosphere:''' -- Turbulent, saturated with toxic chemicals and thermionic radiatio<br>
'''Evolution:''' -- n/a<br>
'''Life Forms:''' -- None<br>
'''Example:''' -- Mimetic<br>
|}
<br><br>
''(Classes X, Y and Z are reserved for planets with environments particularly hostile to humanoid life)''
<br>

=Comparative Sizes and Planetary Evolution=

[[File:Class compare.jpg]]



[[Category:Stellar Cartography]]