Assertion: precession's effect | /r/Synonym | nutation
Facets:
value: collectively
type: MANNER
Source sentences:
text: This variation on the orientation of the Moon's orbit sometimes enhances the Sun's Precessional effect and sometimes fights it, so there is a prominent variation of total precession in around a 19-year period, one of the effects which are collectively called Nutation.
text: This secondary effect, called nutation, is usually not significant unless something happens to disturb the motion of the top.