Nodes Of The Moon
The Moon does not orbit in the Ecliptic but is inclined to it by a mean of 5 degrees 8 minutes. The two points in the Moon's orbits where it cuts across the plane of the Ecliptic are called Nodes. The Ascending node is where the Moon crosses the Ecliptic from South to North and the Descending node is called South Node where the Moon crosses the Ecliptic from North to South. A line joining these points is called Nodal Axis.