Tilt of the Earth's axis The spin of the Earth tilts away from the orbital plane in a 41,000-year-long cycle where tilt varies from 21.5&deg;
(Tilt of the Earth's axis; tilts; away from the orbital plane) (tilt; varies; from 21.5&deg; L:a 41,000-year-long cycle)
Tilt of the Earth's axis tilt
tilts varies
away from the orbital plane
from 21.5&deg L:a 41,000-year-long cycle