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  • Earth's Physical Characteristics: Mass, Size, Composition & Atmosphere
    Physical Characteristics

    * Mass: 5.972 × 10^24 kg

    * Volume: 1.08321 × 10^12 km³

    * Density: 5,515 kg/m³

    * Surface area: 510.1 million km²

    * Equatorial radius: 6,378.1 km

    * Polar radius: 6,356.8 km

    * Eccentricity: 0.0167

    * Axial tilt: 23.44°

    Composition

    * Crust:

    * Continental crust: 35%

    * Oceanic crust: 65%

    * Mantle: 68%

    * Outer core: 15%

    * Inner core: 1%

    Atmosphere

    * Nitrogen: 78.08%

    * Oxygen: 20.95%

    * Argon: 0.93%

    * Carbon dioxide: 0.04%

    * Other gases: 0.01%

    Hydrosphere

    * Oceans: 71%

    * Freshwater: 2.5%

    * Ice caps and glaciers: 1.7%

    * Groundwater: 0.6%

    Biosphere

    * Plants: 2.5 × 10^30

    * Animals: 10^20

    * Microorganisms: 10^30

    Climate

    * Average temperature: 15 °C

    * Highest temperature: 56.7 °C (Death Valley, California, USA)

    * Lowest temperature: -89.2 °C (Vostok Station, Antarctica)

    Magnetic Field

    * Magnetic dipole moment: 7.91 × 10^22 Am²

    Rotation

    * Rotation period: 24 hours

    * Obliquity: 23.44°

    Orbit

    * Orbital period: 365.25 days

    * Semi-major axis: 149.6 million km

    * Eccentricity: 0.0167

    * Inclination: 1.57°

    Moons

    * Number: 1

    * Name: Moon

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