What latitude is defined as 0 degrees?

The Equator is defined as 0 degrees latitude, serving as an essential reference point for the geographical coordinate system. This imaginary line encircles the Earth horizontally and divides it into the Northern and Southern Hemispheres. Being at 0 degrees latitude, the Equator represents the point where temperatures are generally warmer, and it experiences consistent daylight hours throughout the year due to its position relative to the sun.

Understanding the Equator's role helps in grasping the concepts of climate zones, time zones, and navigation. It is a fundamental geographical concept that is critical to various fields of study including geography, meteorology, and global navigation.