Ecliptic System of Coordinates

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Ecliptic System of Coordinates

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A set of celestial coordinates based on the ecliptic as the primary great circle. See coordinate, table. </dd>
The points 90� from the ecliptic are the north and south ecliptic poles. Angular distance north or south of the ecliptic, analogous to latitude, is celestial latitude. Celestial longitude is measured eastward along the ecliptic from the vernal equinox through 360�. [[/a>|/a> ]]

References

This article is based on NASA's Dictionary of Technical Terms for Aerospace Use