Placing an L=2000 (arbitrary units) star at a distance of 4 Light Years produces a flux on the detector of 10 (arbitrary units - note the exact math would yield 9.95 units as shown above - just round that up to 10).

This is our system calibration.

Moving any of the three stars (L = 1000,2000 or 4000 Units) to any distance will allow you to scale to correctly determine the flux on the detector.