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The shadow of the photographer's head at the bottom of the photograph marks the centre of the rainbow circle (the antisolar point). A rainbow is an optical phenomenon caused by refraction, internal reflection and dispersion of light in water droplets resulting in a continuous spectrum of light appearing in the sky. [1]
The anthelic point is often used as a synonym for the antisolar point, but the two should be differentiated. [1] While the antisolar point is directly opposite the sun, always below the horizon when the sun is up, the anthelic point is opposite but at the same elevation as the sun, and is therefore located on the parhelic circle.
Also visible are parts of the 22° halo (the arcs passing through each sun dog), a sun pillar (the vertical line), and the parhelic circle (the horizontal line). A sun dog (or sundog ) or mock sun , also called a parhelion [ 1 ] (plural parhelia ) in atmospheric science , is an atmospheric optical phenomenon that consists of a bright spot to ...
Parhelic circle – Type of halo, an optical phenomenon; Parry arc – Optical phenomenon; Rainbow – Meteorological phenomenon; Subhelic arc – Rare halo; Subparhelic circle – Rare atmospheric optical phenomenon; Subsun – Glowing spot that can be seen within clouds or haze when observed from above; Sun dog – Atmospheric optical phenomenon
The rainbow is depicted as an archer's bow in Hindu mythology. Indra, the god of thunder and war, uses the rainbow to shoot arrows of lightning. [11] In pre-Islamic Arabian mythology, the rainbow is the bow of a weather god, Quzaḥ, whose name survives in the Arabic word for rainbow, قوس قزح qaws Quzaḥ, "the bow of Quzaḥ".
Glory around the shadow of a plane. The position of the glory's centre shows that the observer was in front of the wings. A glory is an optical phenomenon, resembling an iconic saint's halo around the shadow of the observer's head, caused by sunlight or (more rarely) moonlight interacting with the tiny water droplets that comprise mist or clouds.
In its full form, the arc has the appearance of a large, brightly spectrum-coloured band (red being the topmost colour) running parallel to the horizon, located far below the Sun or Moon. The distance between the arc and the Sun or Moon is twice as far as the common 22-degree halo. Often, when the halo-forming cloud is small or patchy, only ...
Reflective caustic generated from a circle and parallel rays. On one side, each point is contained in three light rays; on the other side, each point is contained in one light ray. In differential geometry, a caustic is the envelope of rays either reflected or refracted by a manifold.