The descending node is the point in the orbit of an object where it crosses the plane of the ecliptic from the north celestial hemisphere to the south celestial hemisphere in the direction of motion. Because of this, the descending node of the orbit of the Earth's moon is one of only two places where a lunar or solar eclipse can occur.
The line of nodes is the intersection of the object's orbital plane with the ecliptic, and runs between the ascending and descending nodes.
dajasagubaqux: There were luminous nodules moving to and fro, cyclones of ascending and descending gas, prominences slowly rocketing toward the heavens.
myguzuhanup: He did not even attempt to grasp the scale of the inferno toward which he was descending.
difelakevapiv: The space pod was now moving along a shallow arc almost parallel to the surface of the star, but slowly descending toward it.
Confucyclist: RT @mattrabin: One of the hardest most underrated skills of cycling is descending FAST, concentration, nerve and ... http://t.co/aAWotov4
