**Equator**
**Definition:**
The equator is an imaginary line encircling the Earth, equidistant from the North and South Poles, dividing the planet into the Northern and Southern Hemispheres.
## Overview
The equator is located at 0 degrees latitude and is approximately 40,075 kilometers (24,901 miles) long. It represents the widest circumference of the Earth and is used as a reference point for geographic coordinate systems. The equator passes through 13 countries, including Ecuador, Brazil, and Indonesia.
## Climate and Environment
Regions along the equator typically experience a tropical climate characterized by high temperatures and significant rainfall throughout the year. This results in lush rainforests and diverse ecosystems. The equatorial zone receives nearly direct sunlight year-round, leading to minimal seasonal temperature variation.
## Significance
The equator plays a crucial role in navigation, climate studies, and understanding Earth’s geography. It also influences global weather patterns and ocean currents.
**Meta Description:**
The equator is the Earth’s zero-degree latitude line dividing the Northern and Southern Hemispheres, known for its tropical climate and geographic significance.