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Space Era is an original multiverse created in 1990 by Steve Manzie.
 
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 Planetary Classification System

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Samash
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PostSubject: Planetary Classification System   Mon Feb 10 2014, 13:00

This is the current Planetary Classification System currently in use:

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PostSubject: Terrestrial Planets   Thu Jul 06 2017, 20:34

TERRESTRIAL PLANETS

GEOMORTEUS
Diameter: 1,000-10,000 km
Description: Small terrestrial worlds, usually found within the inner system (hot) zone.  These worlds tend to be fairly active, and have tenuous atmosphere's at best.
Life Forms: None.
Human Habitation: Supported habitation only.
Examples: Mercury (Sol I)

GEOPASSIVE
Diameter: 1,000-10,000 km
Description: Small terrestrial worlds with minimal or no atmosphere, and little geological activity.  These planets can be found throughout a solar system.  This is a general classification, and exact specifics may vary widely.
Life Forms: Rare, but some GeoPassive worlds have been known to harbour life, even sentient life.
Human Habitation: Supported habitation only.
Examples: Venturi VII, Pacryhl II.

AREAN
Diameter: 5,000-15,000 km
Description: These worlds can be from 5 to 15,000 km and tend to have little tectonic activity.  They may once have been more active in the past (like Mars in the Sol system) but have since quietened.  They tend to have only a thin atmosphere of carbon dioxide, the rest being stripped away by solar winds.
Life Forms: Primitive single-celled organisms common.  More advanced life forms are rare, but known.
Human Habitability: These worlds are adaptable for Human habitation with some terraforming.
Examples: Mars (Sol IV); Xythrax III, Pathos IV.

VENEREAN
Diameter: 8,000-18,000 km
Description: Medium terrestrial worlds, usually found within the inner system or habitable zone.  These worlds tend to form a dense atmosphere of carbon dioxide, and have extremely high surface temperatures.
Life Forms: Rare, but some Venerean worlds have been known to harbour life.
Human Habitability: Possible with extensive terraforming.
Examples: Venus (Sol II).

PELAVENEREAN
Diameter: 8,000-18,000 km
Description: Essentially, a Venerean world with extensive oceans on the surface.  Still extremely hostile to Human life.
Life Forms: Rare, but more common than Venerean.
Human Habitability: Possible with terraforming.
Examples: .

GAIAN
Diameter: 8,000-18,000 km
Description: Earth-like worlds.  All Gaian worlds have extensive ecosystems present, though not necessarily sapient life.  Found only in orbit of F, G, and K-Type stars.
Life Forms: Advanced ecosystems present.
Human Habitability: Human native environment type.
Examples: Earth (Sol III); Pendroca IV; Avadne II; Kyria Prime; Moray IV.

PELAGIC
Diameter: 8,000-18,000 km
Description: Earth-like worlds with more than 90% surface covered by water.
Life Forms: Advanced exosystems present.
Human Habitability: No modifications necessary.
Examples: Pacifica VI; Kendra Prime; Pendroca IV; Juria IV.

AMAZONIS
Diameter: 8,000-18,000 km
Description: A terrestrial world covered in dense jungle and swamps.
Life Forms: Advanced exosystems present.
Human Habitability: Suitable with minimal or no terraforming.
Examples: .

GLACIATED
Diameter: 8,000-18,000 km
Description: Earth-like worlds with more than 80% surface covered by surface ice.
Life Forms: Advanced exosystems present.
Human Habitability: Suitable with minimal or no terraforming.
Examples: .

METHANE
Diameter: 8,000-18,000 km
Description: A terrestrial world with a methane atmosphere and methane oceans.
Life Forms: Advanced exosystems present.
Human Habitability: Requires extensive terraforming.
Examples: .

AMUNIAN
Diameter: 8,000-18,000 km
Description: A terrestrial world with an ammonia atmosphere and shallow ammonia oceans.
Life Forms: Advanced exosystems present.
Human Habitability: Requires extensive terraforming.
Examples: .

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PostSubject: Super Terrestrial Planets   Thu Jul 06 2017, 20:36

SUPER TERRESTRIAL PLANETS

SUPERGAIAN
Diameter: 18,000-50,000 km
Description: Large terrestrial worlds, similar to Gaian worlds though much more massive.
Life Forms: Extensive ecosystems present.
Human Habitability: No modifications necessary, though gravity may be a concern.
Examples: .

PANTHALASSIC
Diameter: 18,000-50,000 km
Description: Large terrestrial worlds, with oceans covering 80% or more of the surface.
Life Forms: Extensive ecosystems present.
Human Habitability: No modifications necessary, though gravity may be a concern.
Examples: .

PYROTHALASSIC
Diameter: 18,000-50,000 km
Description: Large terrestrial worlds with a dense atmosphere of carbon dioxide, and extremely high surface temperatures.
Life Forms: Rare.
Human Habitability: Possible with extensive terraforming.
Examples: .

ICE GIANT
Diameter: 15,000-80,000 km
Description: Large worlds consisting primarily of ice.  These worlds are found in the outer reaches of a solar system.
Life Forms: None known.
Human Habitability: Possible with terraforming.
Examples: .

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PostSubject: Gas Giants   Thu Jul 06 2017, 20:37

GAS GIANTS

SUBJOVIAN
Diameter: 40,000-100,000 km
Description: Large worlds with extensive layers of gas.  Small gas giants.
Life Forms: Rare.
Human Habitability: No.
Examples: Aru'Zhi'Luara IV; Neptune (Sol VII); Uranus (Sol VIII).

JOVIAN
Diameter: 100,000-250,000 km
Description: Gas giant worlds.
Life Forms: None known.
Human Habitability: No.
Examples: Jupiter (Sol V); Saturn (Sol VI).

SUPERJOVIAN
Diameter: 250,000-500,000 km
Description: Large gas giants.
Life Forms: None known.
Human Habitability: No.
Examples: .

HYPERJOVIAN
Diameter: 500,000-2,500,000 km
Description: Massive gas giants.
Life Forms: None known.
Human Habitability: No.
Examples: Aurelia V.

ULTRAJOVIAN
Diameter: 2,500,000-50,000,000 km
Description: Massive gas giants.
Life Forms: None known.
Human Habitability: No.
Examples: Pallas IV.

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