I saw distance of 78 light years between solar systems on the SF sector map.
The sector maps for Traveller are 24 light years across. With 16 sub-sectors.
So it looks like I’ll use 4 across and 4 high sector maps to represent my ASFU sector map. ( i.e. Alternate Star Frontiers Universe.)
Here is what one looks like. Of course, it will have to be relabeled to fit this game universe.
Measured in CC3+, this map is 24 × 40.5 light years.
Update June 20, 2021: I have decided to make 5 wide and 4 tall area, for 20 Traveller Sectors.