At sunrise or sunset, the sun and parts around it show the
sky red. During these two periods, the sun is very close to the horizon, so the
sunlight penetrates the relatively thick and thick air layer near our surface.
Seven colors blend in the white light of the sun when sunlight falls on small
particles of air-level floating dust and other objects, its colors spread to
different angles. The lower the wavelength of the colored light, the greater
its dispersion or dispersion, and the higher the wavelength of that light, the
less its dispersion.
As a result, the diffusion of light colors such as violet, blue, and sky with the lowest wavelengths of sunlight occurs most often when passing through dust, water, etc. floating in the atmosphere. On the contrary, the red light's wavelength is less because its dispersion is less and it goes directly to the earth. And that is why the sun and the sky around it appear red at sunrise and sunset.
As a result, the environment is clear and clean in the morning. And because of the low dispersion of sunlight in this clear air, the red color in the morning looks a bit lighter. On the contrary, as the sun rises in the early afternoon, the sun's intense light and the movement of people increase the amount of dust in the air, as well as other elements around it. As a result, at sunset, the sunlight is more diffused in the atmosphere, rendering the western sky a darker red than the eastern sky.
As a result, the diffusion of light colors such as violet, blue, and sky with the lowest wavelengths of sunlight occurs most often when passing through dust, water, etc. floating in the atmosphere. On the contrary, the red light's wavelength is less because its dispersion is less and it goes directly to the earth. And that is why the sun and the sky around it appear red at sunrise and sunset.
Now the question is, why does the sun appear redder than sunrise?
Yes, the little red skies on a sunny morning are not as
pleasant as the red skies in the evening. Although the red sky at sunrise looks
quite attractive, the western horizon of the sunset is a bit red and a bit
sharper. The main reason for this is that the afternoon air has high amounts of
dust and other elements, and in the morning air dust content is relatively low.
As the night gets deeper after dusk, our surroundings slowly start to cool
down. In this cool environment, dust and other gaseous elements float in the
air and fall down.
As a result, the environment is clear and clean in the morning. And because of the low dispersion of sunlight in this clear air, the red color in the morning looks a bit lighter. On the contrary, as the sun rises in the early afternoon, the sun's intense light and the movement of people increase the amount of dust in the air, as well as other elements around it. As a result, at sunset, the sunlight is more diffused in the atmosphere, rendering the western sky a darker red than the eastern sky.
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