An Astronomical Unit is a unit of measurement of distance, frequently used to measure inter-planetary distances.
- Speed of Travel
Imperial vs. Solomani Astronomical Unit Usage
Modern Imperial usage bases the AU on the distance between Capital and its sun, which happens to have an almost identical orbital distance to that of Terra around Sol. This definition of the AU was broadly adopted following the Solomani Rim War, in order to avoid the use of specifically Terracentric metrics.
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