by Anders Lamren
I was going to look up "Azimuth Angle"(Z) but found only "Azimuth".
As far as I know Azimuth (Zn) is always measured from true North clockwise over 90, 180, 270 to 360 degrees, not from the South Point as you say.
I know the correct definition of "Azimuth Angle" (Z). Ref: Sght Reduction Tables HO229 from U.S. Naval Oceanographic Office.
Its quite astonishing how many false "definitions" that exists on this term.