Essentials of Planet and Minor Planet Orbits
Explanation of Eccentricity and Inclination of an orbit, what the semi-major axis is, aphelion, perihelion, and the ascending and descending nodes of the planets. A description of the orbital characteristics of main solar system objects: main belt asteroids, centaurs, Kuiper Belt objects, Scattered Disk Objects, near Earth asteroids, and comets.
By David Cochrane
