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Sunset (or sundown) is the disappearance of the Sun at the end of the Sun path, below the horizon of the Earth (or any other astronomical object in the Solar System) due to its rotation. As viewed from everywhere on Earth, it is a phenomenon that happens approximately once every 24 hours, except in areas close to the poles.
The development of a green flash at sunset in San Francisco A green flash in Santa Cruz, California The stages of a green flash A mock-mirage green flash observed in San Francisco, California. The green flash and green ray are meteorological optical phenomena that sometimes occur transiently around the moment of sunset or sunrise.
Diagram showing displacement of the Sun's image at sunrise and sunset Comparison of inferior and superior mirages due to differing air refractive indices, n. Atmospheric refraction is the deviation of light or other electromagnetic wave from a straight line as it passes through the atmosphere due to the variation in air density as a function of height. [1]
Sunset anxiety occurs when a person starts to feel anxious as the sun goes down at the end of the day, Beena Persaud, PsyD, clinical psychologist with Cleveland Clinic Akron General in Akron, Ohio ...
Yellowstone rode off into the sunset on Dec. 15 with a record-breaking series finale that roped in 11.4 million viewers across Paramount Network and CMT — the most-watched live episode in the ...
These short sunset quotes capture the brilliance of evening skies. Poetically caption a sunset photo on Instagram, or find a sunset metaphor about life or love.
Rayleigh scattering causes the blue color of the daytime sky and the reddening of the Sun at sunset. Rayleigh scattering (/ ˈ r eɪ l i / RAY-lee) is the scattering or deflection of light, or other electromagnetic radiation, by particles with a size much smaller than the wavelength of the radiation.
Civil, nautical, and astronomical twilight. [3] Dusk is the darkest part of evening twilight. The time of dusk is the moment at the very end of astronomical twilight, just before the minimum brightness of the night sky sets in, or may be thought of as the darkest part of evening twilight. [4]