Diameter: 12756 km
SMA: 1 AU
Period: 1.0007 years
Eccentricity: 0.016711
Rotation: 0.99727 days
Inclination: 0°
Axial tilt: 23.44°

Mass: 5.97237x10²⁴kg
Density: 5515 kg/m³
Gravitation: 9.798 m/s²
Escape velocity: 11.186 m/s
Orbit velocity: 29.78 km/s (mean)

Moons: 1
78.08% nitrogen, 20.95% oxygen
basaltic rock and water oceans

Earth is the third planet from the sun and the fifth largest in the solar system. Just slightly larger than nearby Venus, Earth is the biggest of the terrestrial planets. Our home planet is the only planet in our solar system known to harbor living things. The name Earth is at least 1,000 years old. All of the planets, except for Earth, were named after Greek and Roman gods and goddesses. However, the name Earth is an English/German word, which simply means the ground.

With a radius of 3,959 miles (6,371 km), Earth is the biggest of the terrestrial planets, and the fifth largest planet overall. From an average distance of 93 million miles (150 million kilometers), Earth is exactly one astronomical unit away from the sun because one astronomical unit (abbreviated as AU), is the distance from the sun to Earth. This unit provides an easy way to quickly compare planets' distances from the sun. It takes about eight minutes for light from the sun to reach our planet.