Details : Item 214

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Terrestrial planets
Gas giants
Gas giants 2
Ice giants
Dwarf planets
Others

Famille : Terrestrial planets /Dad
Earth
Terrestrial planet
The earliest undisputed life on Earth arose
at least 3.5 billion years ago.
71% of Earth's surface is covered with water.
Properties
Albedo0.367
Radius (km)6371.0
Mass (kg)5,973.6x10+24
Density (g/cm3)5.514
Gravity (m/s2)9.807
Orbital period (days)365.256
Orbital speed (km/s)29.78
Temperature (K)288
Discovery dateNA