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Actual sunset: Two minutes before the Sun disappears below the horizon. 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.
The exact cause of green thunderstorms is still unknown, but it could be due to the combination of reddened sunlight passing through very optically thick clouds. Yellowish clouds may occur in the late spring through early fall months during forest fire season. The yellow color is due to the presence of pollutants in the smoke.
Near the equinoxes in Chicago the sunsets occur in the middle of east-west streets (an event known as Chicagohenge), creating intriguing golden hour photography opportunities like this diffraction spike in an urban canyon. Similar phenomenon (such as Manhattanhenge) occur in other parts of the world at various times of the year.
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]
A green rim is present in every sunset, but it is too thin to be seen with a naked eye. The best time to observe the green rim is about 10 minutes before sunset time. [16] However, the solar disc is too bright at that time to use magnification, such as binoculars or telescopes, to look directly at the Sun. Of course, a telescope or binoculars ...
Nearly 20% of American adults reported having an anxiety disorder in the past year — and many are more likely to feel uneasy and anxious as the sun sets. Experts reveal the common triggers.
Iridescent mid altitude clouds Iridescent polar stratospheric cloud at sunset over Aberdeen, Scotland Cloud iridescence, seen above the clouds covered with grey clouds, Pondicherry, India. Cloud iridescence or irisation is a colorful optical phenomenon that occurs in a cloud and appears in the general proximity of the Sun or Moon.
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