A lunar node is either of the two orbital nodes of the Moon; that is, the two points at which the orbit of the Moon intersects the orbit of Earth (the ecliptic). The ascending or north node is where the Moon moves into the northern ecliptic hemisphere, while the descending or south node is where the Moon enters the southern ecliptic hemisphere.
A lunar node is either of the two orbital nodes of the Moon; that is, the two points at which the orbit of the Moon intersects the orbit of Earth (the ecliptic). The ascending or north node is where the Moon moves into the northern ecliptic hemisphere, while the descending or south node is where the Moon enters the southern ecliptic hemisphere.
Source: Wikipedia "Lunar node" · CC BY-SA 4.0
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