anticrepuscularsäteinä

Anticrepuscular rays are atmospheric optical phenomena that appear as diverging rays of sunlight that seem to originate from a point opposite the sun in the sky. They are essentially the same phenomenon as crepuscular rays, but viewed from a different perspective. Crepuscular rays are the visible shafts of sunlight that appear to radiate from the sun's position, often seen when the sun is low on the horizon and partially obscured by clouds or other obstructions.

Anticrepuscular rays are formed when sunlight is scattered by particles in the atmosphere, such as dust or water droplets. These particles cause the light to spread out, creating the visible rays. The rays appear to converge at the antisolar point, which is the point in the sky directly opposite the sun. This convergence is an illusion caused by the perspective of the observer; the rays are actually parallel.

The phenomenon is most noticeable during twilight, when the sun is just below the horizon. The sky is still illuminated by scattered sunlight, and the contrast between the illuminated rays and the darker background makes them easily visible. Anticrepuscular rays can appear in various colors, depending on the composition of the scattering particles and the wavelength of light. They are often seen in conjunction with anticrepuscular clouds, which are clouds that are illuminated by sunlight from behind the observer.