//! Sun gravity-source recipes.
//!
//! ```
//! use astrodyn::recipes::sun;
//! let s = sun::point_mass();
//! assert!(s.source.mu > 1.3e20);
//! ```
use crateGravitySourceEntry;
use crateSUN;
/// Sun as a point-mass body. No rotation model — the JEOD `RotationModel::None`
/// keeps the source's planet-fixed transform absent (Sun is treated as a point
/// emitter for SRP and a third-body gravity source).
/// Sun as a third-body perturbation source at the given inertial position.