👉 Retrogradation, also known as retrograde motion or retrograde orbit, is a phenomenon in which an object moves backwards through its orbit. This can happen when an object passes directly into the opposite side of its orbit, causing it to move backwards and then forward again. For example, if a planet were to pass directly over another planet's orbit, the two planets would move back and forth along their respective orbits, with each moving in reverse order. If this happened repeatedly, the planets would
