Assertion: moon's node | /r/CapableOf | rotate around the earth
Facets:
value: slowly
type: MANNER
value: about every 18.6 years
type: TEMPORAL
value: backwards
type: MANNER
Source sentences:
text: The plane of the lunar orbit gradually rotates westward, so the nodes slowly rotate around the Earth.
text: Because of the torque exerted by the Sun's gravity on the angular momentum of the Earth–Moon system, the plane of the Moon's orbit gradually rotates westward, which means the nodes gradually rotate around Earth.
text: Once again, this period is not quite the same as a single orbit, due to precession of the Moon's orbit; the Moon's orbital plane, and hence the nodes, rotate backwards around the Earth about once every 18.6 years.