South-southwest, at 202.5 degrees, sits on the boundary between the mountain Ding, a heavenly stem lying just west of due south, and the mountain Wei, the branch of the goat.
The Chinese geomantic compass, the luopan, carries twenty-four mountains of fifteen degrees each. The ring runs twelve earthly branches, eight heavenly stems and the four corner trigrams, and it is read to a mountain rather than to a point between two. The European rose reaches its sixteen points by halving, and the arithmetic guarantees that each of its eight secondary bearings falls on a seam.
This particular seam is close to a boundary that matters more than most, since Kun, the corner trigram of the southwest, begins at 217.5 degrees, and Wei fills the fifteen degrees between the goat and that corner. Wei is also one of the four branches counted as a storehouse position, the gathering point of the Wood phase in the cycle used for that purpose, and in the reckoning of hours it is the double hour from one in the afternoon to three.
The general lesson holds here as everywhere on the ring. A bearing is not a neutral quantity that can be handed between traditions unchanged: it means something only inside a division of the horizon, and the divisions genuinely differ. Twenty-four mountains and thirty-two points describe the same sky and cannot be laid over one another without loss.