Why does Earth experience precession? - ProProfs Discuss
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Why does Earth experience precession?


Why does Earth experience precession?

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A. Because the Earth revolves around the sun every 365 days
B. Because of the movement of the circumpolar stars and Polaris
C. Because the Earth is the third planet from the sun
D. Because the plane of the moon’s orbit is tilted from the Earth’s elliptical plane

This question is part of Common Exam - Earth Science Review
Asked by Blhuth, Last updated: May 03, 2019

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2 Answers

C. Kenway

C. KenwayContent Writer, Jacksonville
Content Writer, Jacksonville

Answered on Oct 24, 2018

The answer to this is D. It should be noted that there are always some differences with the way that the earth rotates. There is no fixed axis that is available but the earth tries itself to stay steady. The moon plays a huge role in the earth’s rotation because of the gravitational pull that it can provide. It allows the earth to stay in place.

The rotation speed is mostly constant as well. If the earth spins too fast, it may become the end of humanity and all of the other living things on earth. There are different reasons why the earth spins and rotates the way that it does. Let us hope that this will not change in the days to come.

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John Smith

John Smith

Answered on Sep 19, 2016

Because the plane of the moon’s orbit is tilted from the Earth’s elliptical plane

The Earths rotation axis is not fixed in space. Like a rotating toy top, the direction of the rotation axis executes a slow precession with a period of 26,000 years (see following figure).
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