How long does it take for the Earth's axis to complete one cycle of precession?

Answer

About 26,000 years

Precession is described as a very slow, conical wobble of the Earth’s axis that takes roughly 26,000 years to complete one full cycle.

How long does it take for the Earth's axis to complete one cycle of precession?

#Videos

The Earth Is Wobbling: The Precession of the Equinoxes - YouTube

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