Axial Precession The Earth’s axis itself rotates slowly (white circle), completing a rotation in approximately 25,772 years, which is known as Axial Precession. (The Earth rotates on it’s own axis (the red line) once every 24 hours (shown by the white arrows) this is called Axial Rotation.) Time and Celestial Movement– The Earth’s Revolution and the Seasons, Axial Rotation, Axial Precession, Precession, Equinox, Precession of the Equinoxes, Precession of the Equinoxes and the ‘Ages’, The Ecliptic.