# What is the difference between the precession of earth's orbit and the obliquity of earth's orbit?

Jun 30, 2016

Obliquity is the constant inclination ${23.4}^{o}$ of Earth's polar axis with the normal to the ecliptic and precession is the revolution of this axis about the normal in 258 centuries, nearly..

#### Explanation:

The Earth's axis about which we revolve every 24 hours is inclined

to the normal to the Earth's orbital plane (ecliptic), at ${23.4}^{o}$,

nearly. This is called obliquity.

Nodding gently about the center of the Earth, this axis revolves