descending node

• In der Astronomie und Himmelsmechanik der Punkt einer Umlaufbahn, an dem ein Himmelskörper die Bezugsebene (z. B. die Ekliptik) von Norden nach Süden durchstößt, sich also relativ zu dieser Ebene abwärts bewegt.

In astronomy and orbital mechanics, the point in an orbit where a celestial body crosses a reference plane (such as the ecliptic) from north to south, moving downward relative to that plane.

1. Astronomical termC2formal

   The point in an orbit where a celestial body crosses from the northern to the southern side of a reference plane, such as the ecliptic.

   Absteigender Knoten

   • The Moon's descending node occurs when it crosses the ecliptic moving southward.
   • Astronomers calculated the exact time of the descending node for the comet.
   • Eclipses can occur when the Sun is near the ascending or descending node of the Moon's orbit.