Node Types
This setting allows you to pick which node position to display.
The True Node oscillates according to the Moons "wobble" caused by the earth/moon gyroscopic action. The Mean Node averages this "wobble" out. The problem is that at any given moment the Moon may be "aiming" at a different part of the ecliptic (where is crosses), but by the time it gets there, the Node position will probably have changed.