One more thing, there might be planetary installations (in 99% cases there are) and these fight too. So, all forces as pie slices would lokk odd (planatary installations floating in space...)

I was thinking about this: drawn a planet in the middle, all defensive installations are drawn on the planet surface, then forces of the owner of the planet (if present) are drawn surrounding the planet and the forces of everyone else are drawn farther from the planet (surrounding it as a secondary/farther circle).

OR

Draw the planet on the left, planetary installations on the planet, next to the planet forces of the owner of the planet (facing to the right) and then all other forces (of various factions on the right part of the screen facing left)...

One more thing, there might be planetary installations (in 99% cases there are) and these fight too. So, all forces as pie slices would lokk odd (planatary installations floating in space...)

I was thinking about this: drawn a planet in the middle, all defensive installations are drawn on the planet surface, then forces of the owner of the planet (if present) are drawn surrounding the planet and the forces of everyone else are drawn farther from the planet (surrounding it as a secondary/farther circle).

OR

Draw the planet on the left, planetary installations on the planet, next to the planet forces of the owner of the planet (facing to the right) and then all other forces (of various factions on the right part of the screen facing left)...

Perhaps you could then have the various polygons around that, in the style as Arka's idea?