worldgen:pcl
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====== Planetary Classification List ====== | ====== Planetary Classification List ====== | ||
- | The aim of the **WorldGen** system is to generate random worlds which are diverse, interesting and also vaguely sensible. To aid in this, a broad range of planet types have been defined. This list is based on work done by //John Dollan//, and his far more complete version is at the [[http:// | + | The aim of the **WorldGen** system is to generate random worlds which are diverse, interesting and also vaguely sensible. To aid in this, a broad range of planet types have been defined. |
- | The original list, plus later versions, seem to have vanished from the web. There seems to be a partial copy available at [[https:// | + | Worlds are classified according to a number of factors, which include physical construction (rock, ice, gas) and size, geological activity, atmosphere and biosphere. The classification scheme |
- | There is also a version adapted for the //Eclipse Phase// RPG available [[https:// | + | At the highest level are eight **Groups**, each of which is split into **Classes**. In turn, each class is split into **Types** which represent specific types of worlds. Some types are further split into sub-types, which are normally representative of a particular type of world' |
- | This version is based on a combination | + | Not all entries in the list are //planets// in the usual definition |
- | The list is split into **Groups**, **Classes** and **Types**. The top level groups are: | + | ===== Planetary Classification |
- | | + | [[/ |
- | * [[pcl/Small Body Group]] - Includes small planetoids such as asteroids or coments, generally not more than 10s of kilometres in diameter. | + | **[[./pcl/Belt Group]]** \\ |
- | * [[pcl/Dwarf Terrestrial Group]] - Small rocky dwarf planets with a mass up to 0.15 of that of Earth. They are generally spherical and may have a trace atmosphere. | + | A collection of a large number of Small Bodies. This is a meta classification to denote a belt or ring around a star or planet. |
- | * [[pcl/ | + | ~~~~ |
- | * [[pcl/ | + | |
- | * [[pcl/ | + | |
- | * [[pcl/ | + | |
- | * [[pcl/ | + | |
+ | [[/ | ||
+ | **[[./ | ||
+ | Includes small planetoids such as asteroids or coments, generally not more than 10s of kilometres in diameter. | ||
+ | ~~~~ | ||
+ | |||
+ | [[/ | ||
+ | **[[./ | ||
+ | Small rocky dwarf planets with a mass up to 0.15 of that of Earth. They are generally spherical and may have a trace atmosphere. | ||
+ | ~~~~ | ||
+ | |||
+ | [[/ | ||
+ | **[[./ | ||
+ | Rocky worlds generally from 0.02 to 5.0 Earth masses. They may have geological activity (or had it in the past) and may have a substantial atmosphere. | ||
+ | ~~~~ | ||
+ | |||
+ | [[/ | ||
+ | **[[./ | ||
+ | These are rocky worlds from 3 to 17 Earth masses, also known as super-Earths. They may have dense atmospheres or thick planet-wide liquid oceans, and bridge the divide between rocky and gas worlds. | ||
+ | ~~~~ | ||
+ | |||
+ | [[/ | ||
+ | **[[./ | ||
+ | Range in mass from 10 to 4,000 times the mass of the Earth, up to 13 times the mass of Jupiter. They have rocky or icy cores, and a thick atmosphere generally of hydrogen or helium. | ||
+ | ~~~~ | ||
+ | |||
+ | [[/ | ||
+ | **[[./ | ||
+ | Planetary mass objects which are not bound to a star. Also known as //rogue planets//. They have have formed by themselves out in the depths of space, or have been ejected from an existing system. | ||
+ | ~~~~ | ||
+ | |||
+ | [[/ | ||
+ | **[[./ | ||
+ | Artificially constructed objects of planetary scale or larger, from orbitals thousands of kilometres across to //Dyson Swarms// or // | ||
+ | ~~~~ | ||
+ | |||
+ | |||
+ | |||
+ | ==== References ==== | ||
+ | |||
+ | This list is based on work done by //John Dollan//, and his far more complete version is at the [[http:// | ||
+ | |||
+ | There is also a version adapted for the //Eclipse Phase// RPG available [[https:// | ||
+ | |||
+ | This version is based on a combination of these resources, plus some further modifications. | ||
worldgen/pcl.1564078869.txt.gz · Last modified: 2019/07/25 18:21 by sam