Options Places and needles:
Pose the needle at Roncevaux. Mark a bow.
-Seignuelles to Roncevaux.
No point A to B as described in Options Places.
Sideral to seconds to 360 (how to measure a bow) divided in.0,018…. its 19320. It can be reduced to 19,32 degrees somehow.
Anyways, something with 360, it is fair possible too. A degrees number from 360/0.