b>ecliptic coordinate system is a celestial coordinate system commonly used for representing the positions and orbits of Solar System objects. Because most planets (except Mercury), and many small solar system bodies have orbits with small inclinations to the ecliptic, it is convenient to use it as the fundamental plane. The system's origin can be either the center of the Sun or the center of the Earth, its primary direction is towards the vernal equinox, and it has a right-handed convention. It may be implemented in spherical or rectangular coordinates.
Read more about Ecliptic Coordinate System: Primary Direction, Spherical Coordinates
Famous quotes containing the word system:
“I am fearful that the paper system ... will ruin the state. Its demoralizing effects are already seen and spoken of everywhere ... I therefore protest against receiving any of that trash.”
—Andrew Jackson (17671845)