I played my first game last night and this question came up twice. And it made a difference.
The rules dont show an exact picture of how to use the ruler. Page 10 just says to measure
at the Range 1 end of the ruler from the closet point of the ship base. It does not say ,
Where on the end of the ruler at the range 1 end of the ruler. I.E. is it the middle or one of the
corners of the range ruler and I am assuming you have to lay it flat and not on edge?
The situation came up when there was an asteroid that was in the way and was very close
to sighting right along the edge of it for the extra defense.