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The Earth axis changes tilt with a period of 41 000 years, and with an amplitude of 1.2 degrees. What does the spectrum look like? Is it a steady periodic motion, or rather some quasi-periodic phenomenon?

To clarify, I want information about frequency content of plots like https://en.wikipedia.org/wiki/User:Tfr000#/media/File:Obliquity_berger_-5000000_to_0.png-

The Earth axis changes tilt with a period of 41 000 years, and with an amplitude of 1.2 degrees. What does the spectrum look like? Is it a steady periodic motion, or rather some quasi-periodic phenomenon?

To clarify, I want information about frequency content of plots like this one:

Source: Wikipedia

The earth axis changes tilt with a period of 41000 years, and with an amplitude of 1.2 degrees. What does the spectrum look like? Is it a steady periodic motion, or rather some quasi-periodic phenomenon?

To clarify, I want information about frequency content of plots like https://en.wikipedia.org/wiki/User:Tfr000#/media/File:Obliquity_berger_-5000000_to_0.png-

The Earth axis changes tilt with a period of 41 000 years, and with an amplitude of 1.2 degrees. What does the spectrum look like? Is it a steady periodic motion, or rather some quasi-periodic phenomenon?

To clarify, I want information about frequency content of plots like https://en.wikipedia.org/wiki/User:Tfr000#/media/File:Obliquity_berger_-5000000_to_0.png-

The earth axis changes tilt with a period of 41000 years, and with an amplitude of 1.2 degrees. What does the spectrum look like? Is it a steady periodic motion, or rather some quasi-periodic phenomenon?

The earth axis changes tilt with a period of 41000 years, and with an amplitude of 1.2 degrees. What does the spectrum look like? Is it a steady periodic motion, or rather some quasi-periodic phenomenon?

To clarify, I want information about frequency content of plots like https://en.wikipedia.org/wiki/User:Tfr000#/media/File:Obliquity_berger_-5000000_to_0.png-