sundull

Sundull refers to a phenomenon where the sun appears to have a hazy or distorted outline, often accompanied by a softened or diffused light. This effect can be observed under various atmospheric conditions, typically when the sun is low on the horizon during sunrise or sunset, or when there are specific types of clouds or atmospheric particles present.

The appearance of a sundull is generally attributed to the scattering of sunlight by water droplets or ice crystals suspended in the atmosphere. These particles refract and diffract the light, causing it to spread out and lose its sharp definition. Dust, smoke, or pollution can also contribute to this effect by scattering sunlight.

While not a scientifically defined term, "sundull" is a descriptive phrase used by observers to characterize this visual phenomenon. It is often associated with periods of hazy weather or when light passes through a veil of moisture or particulates. The intensity and duration of a sundull can vary greatly depending on the specific atmospheric conditions present. It is a natural optical effect and does not indicate any danger or abnormality regarding the sun itself.