SOLAR SYSTEM

Detailed explanation-1: -The ascending node is the point where the satellite crosses the equatorial plane going north (ascends). The right ascension of this point is the right ascension of ascending node (). It is measured in the equatorial plane from the x-axis (vernal equinox) to the ascending node.

Detailed explanation-2: -These two points are known as nodes. Ascending node: The point at which satellite intersects the equatorial plane while going from south to north. Descending node: The point at which satellite intersects the equatorial plane going from north to south.

Detailed explanation-3: -For geocentric and heliocentric orbits, the ascending node (or north node) is where the orbiting object moves north through the plane of reference, and the descending node (or south node) is where it moves south through the plane.