Crepuscular rays - Wikipedia
Crepuscular rays, sometimes colloquially referred to as god rays, are sunbeams that originate when the Sun appears to be just above or below a layer of clouds, during the twilight period. [1] Crepuscular rays are noticeable when the contrast between light and dark is most obvious.
Crepuscular rays | Sunlight, Sunbeams, Shadows | Britannica
Crepuscular rays, shafts of light which are seen just after the sun has set and which extend over the western sky radiating from the position of the sun below the horizon. They form only when the sun has set behind an irregularly shaped cloud or mountain which lets …
Crepuscular Rays: What They Are And How They Form - Own …
2024年2月7日 · Crepuscular rays are shades of sunlight originating below the horizon, shining through cloud edges and openings into the evening sky at sunset. It primarily occurs when sunlight travels through broken clouds but also happens when the light travels through other objects under certain conditions.
Sunbeam - Wikipedia
Crepuscular rays or god rays are sunbeams that originate when the sun is just below the horizon, during twilight hours. [3] Crepuscular rays are noticeable when the contrast between light and dark is most obvious.
Why do sunbeams appear to spread out? | Science Questions
2011年10月25日 · The correct name for this phenomenon is "crepuscular rays". It refers to the apparent spreading out from behind a cloud of sunbeams or shafts of sunlight when you view them from the Earth's surface.
Crepuscular rays are sunrays in twilight skies - EarthSky
2024年5月18日 · Bottom line: Crepuscular rays are shadows in the sky of distant terrain or clouds. They form around twilight when particles in the atmosphere reflect the sun’s light beams...
Crepuscular Rays and Cumulonimbus Clouds - eol.jsc.nasa.gov
2024年11月3日 · Crepuscular rays, named after the Latin word for twilight, are shafts of light that can appear at any time of day but are most often visible near sunrise or sunset. In this astronaut photograph, gaps between the clouds allow rays of light to penetrate through and partially illuminate regions of shadow cast by the tall clouds.
What Are Crepuscular Rays? - WorldAtlas
2019年4月2日 · Crepuscular rays are rays of the sun that seem to emerge from the general position of the sun in the sky. These rays appear when things such as heavy clouds, especially stratocumulus clouds, and big objects obscure the sun.
Crepuscular Rays and Light Scattering - NASA
2022年7月17日 · The anvil clouds cast elongated shadows due to the angle of the setting Sun. Two atmospheric optical phenomena are visible in the photo: crepuscular rays and Rayleigh scattering. Both effects are produced by the low angle of …
Crepuscular Rays and Light Scattering - NASA Earth Observatory
2022年7月16日 · The anvil clouds cast elongated shadows due to the angle of the setting Sun. Two atmospheric optical phenomena are visible in the photo: crepuscular rays and Rayleigh scattering. Both effects are produced by the low angle of …
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