//! Spherical-coordinate types: directions on a sphere, with reference-frame-
//! specific newtype wrappers.
//!
//! [`Spherical`] is the geometric base shape (longitude, latitude). The
//! typed variants — [`Equatorial`], [`Ecliptic`], [`Galactic`],
//! [`Horizontal`] — add domain accessors and prevent accidental mixing of
//! reference systems.
pub use Spherical;
pub use Ecliptic;
pub use Equatorial;
pub use Galactic;
pub use Horizontal;