spherical → direction Relation

File in include/siderust/coordinates/types/spherical	Includes file in include/siderust/coordinates/types/spherical/direction
spherical/direction.hpp	direction/horizontal.hpp
spherical/direction.hpp	galactic.hpp
spherical/direction.hpp	spherical/direction/ecliptic.hpp
spherical/direction.hpp	spherical/direction/equatorial.hpp