CliffBates
SOC-12
And it's a lot of work that makes the very abstract nature of HG operational rules very clearly an abstraction for general applicability. When HG was written, the number of GG's was still a matter of referee fiat...
Plus, if the distance exceeds 60° of arc, two GG's are essentially at least as far apart from each other as from the main world... and if more than 120° apart, double that.
For a G_V dwarf system, taking HG as a model... but making it into an actual operational system...
If we want 1 week turns, the "hex size" is 7*24*60*60*10 m (the accumulated vector) times 7*24*60*60 (the action time of accumulated vector), and ignore that that's 50% over 1 turn's burn as a simplification... and that's 24 AU... anything less than Orbit 8 is within a week at 1G. At 2G, anything inside orbit 9...
At 2 days, 1 AU is just about 0.5 hexes...
At 1 day turns, 1 AU is 2 hexes...
Hence the usefulness of microJumps.. when the distances between the outter gas giants and or planets have more than 1 week travel time at Mid to High G.

Also one sees the Tactical importance the actual outlay of a system would have.