Players with -2.0 or worse will be attacked in 1.0 systems
Players with -2.5 or worse will be attacked in 0.9 systems
Players with -3.0 or worse will be attacked in 0.8 systems
Players with -3.5 or worse will be attacked in 0.7 systems
Players with -4.0 or worse will be attacked in 0.6 systems
Players with -4.5 or worse will be attacked in 0.5 systems

-Astronomical Unit
1 AU = 149 ,597,870.691 km ≈ 92, 955, 807 mi ≈ 8.317 light minutes ≈ 499 light seconds