Unit Descriptions

1 Point (navigation):1 Point (navigation) is 1 turn/32 or 1/8 of a right angle or 11.25° or 12.5 grad. In radians (SI unit) 1 point is π/16 rad.

1 Arcsecond:1 Arcsecond is equal to exactly one thirtysix-hundredth arc degrees (1°/3600). In terms of radians (SI unit) this is π/648000 rad or approximately 4.848 137 x 10^-6 rad.