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Earth’s Distance from the Sun

The average distance between the Earth and the Sun is known as an Astronomical Unit (AU).

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  It is approximately 149.6 million kilometers (about 93 million miles).

  
  
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  This distance varies slightly throughout the year because Earth’s orbit is elliptical—closest at perihelion (~147.1 million km) and farthest at aphelion (~152.1 million km).

  
  
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  The astronomical unit is a fundamental standard for measuring distances within our solar system.

  
  

Key facts:

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  Average distance ≈ 149.6 million km (1 AU)

  
  
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  Varies due to elliptical orbit

  
  
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  Basis for measuring planetary distances

  
  

Understanding Earth’s distance from the Sun is essential for studying seasons, climate, and orbital mechanics.