Planetary Size
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Worlds are classified according to their physical size. Only worlds of interest are recorded, e.g. Gas Giants are simply classified as Small or Large.
The following table outlines the UWP codes for the size of a body:
| Code | Description | Diameter (Km) |
|---|---|---|
| R | Asteroid/Planetary Ring (around world) | Multiple < 1 |
| 0 | Asteroid/Planetary Belt (around star) | Multiple < 200 |
| D | Debris | < 200 |
| S | Very Small | 200-799 |
| 1 | Small | 800-2399 |
| 2 | Small (e.g. Luna) | 2,400-3,999 |
| 3 | Small (e.g. Mercury) | 4,000-5,599 |
| 4 | Small (e.g. Mars) | 5,600-7,199 |
| 5 | Medium | 7,200-8,799 |
| 6 | Medium | 8,800-10,399 |
| 7 | Medium | 10,400-11,999 |
| 8 | Large (e.g. Venus/Terra) | 12,000-13,599 |
| 9 | Large | 13,600-15,199 |
| A | Large | 15,200-16,799 |
| B | Huge | 16,800+ |
| SGG | Small Gas Giant (no futher codes) | 40,000-120,000 |
| LGG | Large Gas Giant (no further codes) | 120,000-240,000+ |
- Note that the size code D ( Debris ) is non-standard. It is included to cover such cases as Comet Mid-Rift (Deneb 3234), which are less than 200Km, but not part of an asteroid belt, yet important enough to have mention.
This list of sources was used by the Traveller Wiki Editorial Team and individual contributors to compose this article. Copyrighted material is used under license from Mongoose Publishing or by permission of the author. The page history lists all of the contributions.
- Marc Miller. Referee's Manual (Game Designers Workshop, 1987), .
- Marc Miller. T5 Core Rules (Far Future Enterprises, 2013), 409,413.