Precession nutation rotation pro presenter 5
The periods of rotation, precession and nutation are determined from the recordings of how the pulses change over time. According to equa-tion (6), the period of precession is inversely proportional to that of the rotation, while (7) says that the period of nutation is directly proportion-al to that of the rotation. Nutation (from Latin nūtātiō, "nodding, swaying") is a rocking, swaying, or nodding motion in the axis of rotation of a largely axially symmetric object, such as a gyroscope, planet, or bullet in flight, or as an intended behaviour of a comienzoweb.com an appropriate reference frame it can be defined as a change in the second Euler comienzoweb.com it is not caused by forces external to the body, it. Nutation. As the relative positions and distances from the earth to the sun, moon, and planets vary, so does the rate of precession. The only variation of importance in navigation is nutation. Nutation is a nodding of the poles, one oscillation occurring in about years.