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An optical phenomenon consisting of a series of coloured rings about the antisolar point, visible against the background of a cloud, fog bank, or mist. The rings generally resemble those of a corona, with similar coloration—violet on the inside, to red on the outside. Multiple rings may occur and the radii are inversely proportional to the droplet diameter. Glories are caused by diffraction in which the droplets act as point-source reflectors. The intensities of the various rings are well explained by the theory of Mie scattering, but a rigorous theoretical treatment of the colours and radii remains elusive.

Subjects: Meteorology and Climatology.

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