Blue sun

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The Sun may appear blue after volcanic eruptions or major forest fires. This is typically due to scattering by aerosol particles. [1] Normal Rayleigh scattering is caused by particles much smaller than the wavelength of visible light. The scattering which causes the blue sun appearance is due to larger particles whose size is similar to the wavelength of light. [2]

See also

References

  1. ↑ Wullenweber, Nellie; Lange, Anna; Rozanov, Alexei; von Savigny, Christian (2021-04-30), "On the phenomenon of the blue sun", Climate of the Past, 17 (2): 969–983, Bibcode:2021CliPa..17..969W, doi: 10.5194/cp-17-969-2021 , ISSN   1814-9324
  2. ↑ Peter Pesic (29 April 2008), "A simple explanation of blue suns and moons", European Journal of Physics, 29 (3), European Physical Society, doi:10.1088/0143-0807/29/3/N04
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