: Astronomía: ecliptic coordinate system

mathematical technique > frame of reference > coordinate system > astronomical coordinate > ecliptic coordinate system

astronomical technique > astrometry > coordinate system > astronomical coordinate > ecliptic coordinate system

ecliptic coordinate system

The ecliptic coordinate system is a celestial coordinate system commonly used for representing the apparent positions, orbits, and pole orientations of Solar System objects. Because most planets (except Mercury) and many small Solar System bodies have orbits with only slight inclinations to the ecliptic, using it as the fundamental plane is convenient. The system's origin can be the center of either the Sun or Earth, its primary direction is towards the vernal (March) equinox, and it has a right-hand convention. It may be implemented in spherical or rectangular coordinates. (Wikipedia, The Free Encyclopedia, https://en.wikipedia.org/wiki/Ecliptic_coordinate_system)

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