Lightspeed
The speed of light in Shores of Hazeron is 10 minutes per parsec. A sector is a cube that is 10 parsecs on a side. At light speed, it would take 100 minutes to cross from one side of a sector to another.
A parsec in Shores of Hazeron is 90'525'600m. Therefore, the speed of light in Shores of Hazeron is 150'876m/s.
Short answer:
- 150'876m/s
Visual Effect
When traveling faster than 90% the speed of light, a blue/red shift will start showing.
Real-World Definition
In our real universe, the speed of light is 299'792'458m/s.