Sun’s Halo



  • A rainbow around the Sun know as a Sun halo, was observed recently in Bengaluru.


  • The halo that appeared around the Sun is a 22-degree ring that appears due to the dispersion of light as white light passes through ice crystals found in upper-level cirrus clouds, causing the halo to have colours.
  • The clouds contain millions of tiny ice crystals, which refract, split, and even reflect the light to give an impression of a circular rainbow ring.
  • The crystals have to be oriented and positioned just so with respect to your eye, in order for the halo to appear.
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