Assertion: celestial sphere's pole | /r/CapableOf | shift position
Facets:
value: over a nearly 26,000-year cycle
type: TEMPORAL
value: in the sky
type: LOCATION
value: gradually
type: MANNER
Source sentences:
text: Because of the precession of Earth's axis, the celestial poles gradually shift position in the sky over a nearly 26,000-year cycle.