Meso World
Meso Worlds are worlds that have a diameter of between 5,600 km and 13,600 km.
- The term specifically relates to solid (rocky) planets or worlds.
- It describes a physical characteristic of the world.
Description / Specifications
A very broad term used to describe the general size of a world. A meso world is likely to have a moderate surface gravity, depending on its density and mass.
General size code categories:
- Size Codes 0 or S: Planetoid.
- Size Codes 1-3: Small World.
- Size Codes 4-8: Meso World.
- Size Code 9 or more: Big World.
Probable Orbits
Meso worlds may be located within any region of a system. Meso worlds are occasionally moons of larger rocky worlds or gas giants.
History & Background
Planetary Characteristics
Additional details for meso worlds are provided below:
| Size Code |
Mean Diameter |
Low Density (3.5 g/cm³) |
Average Density (5.5 g/cm³) |
High Density (7.5 g/cm³) |
Distance to Horizon |
|---|---|---|---|---|---|
| 4 | 6,400 km | Mass: 0.080 Earths Surface Gravity: 0.315 G |
Mass: 0.125 Earths Surface Gravity: 0.500 G |
Mass: 0.170 Earths Surface Gravity: 0.685 G |
Approximately 3.6 km |
| 5 | 8,000 km | Mass: 0.150 Earths Surface Gravity: 0.395 G |
Mass: 0.245 Earths Surface Gravity: 0.625 G |
Mass: 0.335 Earths Surface Gravity: 0.855 G |
Approximately 4.0 km |
| 6 | 9,600 km | Mass: 0.260 Earths Surface Gravity: 0.475 G |
Mass: 0.420 Earths Surface Gravity: 0.750 G |
Mass: 0.915 Earths Surface Gravity: 1.020 G |
Approximately 4.4 km |
| 7 | 11,200 km | Mass: 0.315 Earths Surface Gravity: 0.570 G |
Mass: 0.670 Earths Surface Gravity: 0.875 G |
Mass: 0.915 Earths Surface Gravity: 1.195 G |
Approximately 4.7 km |
| 8 | 12,800 km | Mass: 0.620 Earths Surface Gravity: 0.630 G |
Mass: 1.000 Earths Surface Gravity: 1.000 G |
Mass: 1.350 Earths Surface Gravity: 1.360 G |
Approximately 5.1 km |
Note that different versions of the rules may have alternative definitions for small worlds, meso worlds, and big worlds.
References & Contributors / Sources
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- Other Cites Pending
- External Link: Beowolf's Libary Data Website dead link (relevance pending, as site has not been archived)
- Lord (Marquis) and Master of Sophontology Maksim-Smelchak of the Ministry of Science