Astronomical factors 2

Now, these two factors are not constant, and due to Moon's and Sun's attraction, the polar axis slowly describes a cone, following a movement called "astronomical precession".

In addition to its rapid (daily) rotational spin and its slower (yearly) revolution around the Sun,
Earth wobbles slowly like a top, with a full wobble every 25.700 years.


*Astronomical factors 3*
	2 - Precession of the Equinoxes
	Now, these two factors are not constant, and due to Moon's and Sun's attraction, the polar axis slowly describes a cone, following a movement called "astronomical precession". In addition to its rapid (daily) rotational spin and its slower (yearly) revolution around the Sun, Earth wobbles slowly like a top, with a full wobble every 25.700 years.