A new nutation series for a rigid Earth model

A new nutation series for a rigid Earth model was derived from a new and highly accurate tidal potential series. A new second order theory for the nutational amplitudes of rotation-, figure-and angular momentum-axis based on tidal amplitudes is formulated. Amplitudes larger than 0.45 mu as are taken into account leading to a series with 699 terms. The new series may serve as test of other ones that were recently published in the literature.