“NUTATION” на російській мові

In addition to the precession and nutation of the Earth's rotational axis, the Earth itself undergoes a wobble such that the crust wanders about the rotational axis with a combination of two periods and amplitudes.

Bessel's work in determining the constants of precession, nutation and aberration won him further honours, such as a prize from the Berlin Academy in 1815.

The principal causes of the slight irregular motion known as nutation are the Sun and Moon as they continually change location relative to one another.

There is a small periodic effect called nutation superimposed on precession caused by the motion of the perihelion of the Moon.