In this essay, I’m going to examine precession, its effects on the night sky, and other questions pertaining to this subject. First off, technically speaking precession is the slow change in the direction of the pole of a spinning body (Earth and its axis). Pretty much what this means is that the Earth wobbles as it spins about its axis and the axis changes directions slowly. This precession of Earth is caused due to the combination of both the gravitational pulls of the Sun and the Moon. Because the Earth is not a perfect ball and is fatter in the middle toward the equator the gravity of the sun and the moon pull on this fatter part of the Earth and cause the Earth to wobble. The period of precession is about 26,000 years and during this period
