Descending Node
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Descending Node
</dt>
That point at which a planet, planetoid, or comet crosses to the south
side of the ecliptic; that
point at which a satellite
crosses to the south side of the equatorial plane of its primary. Also called
southbound node. The opposite is ascending node or northbound
node. [[/a>|/a>
]]
References
This article is based on NASA's Dictionary of Technical Terms for Aerospace Use