Rocky

Earth

Our ocean-covered home has liquid surface water and an atmosphere dominated by nitrogen and oxygen.

Mean orbital distance (AU)

1

Mean diameter (km)

12742

Orbital period (Earth days)

365.25

Planet class

Rocky

Understanding this entry

Its axial tilt produces seasons; distance from the Sun is not the main cause of the seasons.

Further reading and reference: Topic reference ↗. Values and educational summaries are not a substitute for specialised advice.