Descending node
Descending node (pronunciation: /dɪˈsɛndɪŋ noʊd/) is a term used in Astronomy and Astrology to refer to the point where an orbit crosses from north to south in the reference plane.
Etymology
The term "Descending node" is derived from the Latin words "descendere" meaning "to go down" and "nodus" meaning "knot". In the context of astronomy and astrology, it refers to the point where a celestial body appears to move downwards across the celestial equator.
Related Terms
- Ascending node: The point where an orbit crosses from south to north in the reference plane.
- Orbit: The gravitationally curved trajectory of an object.
- Celestial equator: The great circle that is the projection of Earth's equator out onto the celestial sphere.
- Celestial body: A natural object which is located outside of Earth's atmosphere.
- Reference plane: A plane which is used as a way to standardize measurements and observations.
See Also
External links
- Medical encyclopedia article on Descending node
- Wikipedia's article - Descending node
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