Convert Suns radius to X-unit Online | Free Length Converter

Sun’s Radius

The radius of the Sun is the distance from its center to its surface (photosphere).

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  It is approximately 696,340 kilometers (about 432,685 miles).

  
  
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  The Sun is a nearly perfect sphere of hot plasma, and this radius defines its visible "surface."

  
  
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  The Sun’s radius is about 109 times the radius of Earth.

  
  

Key facts:

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  Sun’s radius ≈ 696,340 km

  
  
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  Defines the size of the Sun’s visible surface

  
  
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  Critical for understanding solar structure and scale

  
  

Knowing the Sun’s radius helps astronomers model solar phenomena and compare the Sun with other stars.

X-unit

The X-unit (symbol: xu) is a very small unit of length used primarily to measure wavelengths of X-rays and gamma rays. It was introduced in the early 20th century for precision measurements in X-ray crystallography.

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  1 X-unit ≈ 0.1 picometers (pm) or 10⁻¹³ meters

  
  
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  It allows scientists to express extremely small wavelengths typical of X-rays, which are on the order of atomic spacing

  
  
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  The exact definition has varied historically, but the unit remains useful for comparing wavelengths in X-ray spectroscopy and crystallography

  
  

Though largely replaced by the picometer or ångström in modern usage, the X-unit played a crucial role in early developments of atomic-scale measurement.