Question

What is precession, and how does it affect our view of the heavens?

Answer 1

The Earth's axis rotates (precesses) just as a spinning top does. The period of precession is about 26,000 years. Therefore, the North Celestial Pole will not always be point towards the same starfield. Precession is caused by the gravitational pull of the Sun and the Moon on the Earth.

Answer 2

precession:

*It is the slow and continuous change in rotation.

#it doesn't affect heaven.

(According to my view)

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