The length of time it takes for the apparent motion of the Sun to take it from one nodeThe two points where a tilted orbit intersects a geometrical plane e.g. the Moon's orbit intersecting the ecliptic. More of the Moon to the other and back to the original nodeThe two points where a tilted orbit intersects a geometrical plane e.g. the Moon's orbit intersecting the ecliptic. More (about 346.6 days).