Answer to Question #113328 in Mechanics | Relativity for Awaab Raymond

Question

What is nutation

Answer 1

Nutation is the movement of a rotating solid that occurs simultaneously with precession and during which the angle between the axis of the body's own rotation and the axis around which the precession occurs is changed; this angle is called the nutation angle.

(figure from https://www.researchgate.net/figure/Diagram-showing-revolution-rotation-precession-and-nutation-of-the-Earth_fig29_317264700)