The geocentric nodes of a planet's orbit are points where the orbit intersects the plane of the ecliptic.
When a planet crosses the ecliptic from south to north and is called the ascending node.
And when crossing north to south, the descending node, unlike the moons nodes, the planetary nodes are not opposite each other.
These points are less used in modern techniques, but in general they bring limits to the affairs concerned in the natal chart. Progressions to the natal nodal points and directions show change.
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