Orbital mechanics
N-Body Dynamics
The gravitational motion of many bodies at once. Beyond two bodies there is no general closed-form solution, so the positions of the planets and moons are found by integrating the equations of motion numerically — the basis of modern ephemerides.
Bodies, frames & concepts
Across celestial mechanics
Knowledge connections
- Associated withThe Restricted Three-Body Problem
- Associated withOrbital Perturbations
- Associated withJPL Development Ephemeris
- Associated withOrbital Perturbations
- Associated withJPL Development Ephemeris
Sources
The primary and reference sources this topic draws on.
- NASA JPLJet Propulsion Laboratory / Solar System Dynamics
Orbital data, ephemerides, and small-body parameters for planets, asteroids, and comets.