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The basic unit of length and distance in Dyson Sphere Program is the meter. Icarus's height was set as 3m, vegetation height as 1m ~ 6m, and building height as 2m ~ 30m. Distances between astronomical bodies are (beyond a certain range) given in AU (astronomical units), and ly (light years). However, in the game, these value differ from their real-world equivalents. Below are two tables, one for basic distance/length conversions and one supplying the diameters of different astronomical objects and structures.
| Distance | Conversion |
|---|---|
| 1 AU | 40000 m (40 km) |
| 1 ly | 60 AU (2400 km) |
| Object | Diameter |
|---|---|
| Planet | 400 m (1 D) |
| Giant planet | 1600 m (4 D) |
| Star | 1600 m (1 R ⊙) |
| Red giant | 40000 m (25 R ⊙ / 1 AU) |
| Planetary system | 40000 - 400000 m (1 - 10 AU) |
| Dyson sphere | 4000 - 72100 m |