Why is the sky red at Sunset ?

Answer 1

Ultraviolet rays. I think so.

^_^

Answer 2

Red Sunsets
Just before sunset, when the Sun is very low in the sky, the light that has gotten to you has had to go through a LONG path through the earth's atmosphere. It went over the heads of a lot of people already, and some of the blue light was used up (scattered) making THEIR skies blue. More and more BLUE light was scattered out along the way, so the only light left which gets to you at sunset is primarily RED light. The lower the sun gets, the longer the path through the atmosphere, the more blue light scattered out, and the redder the Sun appears. (It does NOT actually change color!!) Since there is now virtually ONLY red light present, the sky also loses the brightness of the blueness of the sky. Now, when the remaining red light scatters (poorly) off the atoms, it makes the sunset sky reddish, especially clouds because they reflect (all colors of light) better.-

Answer 3

When the air is clear the sunset will appear yellow, because the light from the sun has passed a long distance through air and some of the blue light has been scattered away. If the air is polluted with small particles, natural or otherwise, the sunset will be more red. Sunsets over the sea may also be orange, due to salt particles in the air, which are effective Tyndall scatterers. The sky around the sun is seen reddened, as well as the light coming directly from the sun. This is because all light is scattered relatively well through small angles--but blue light is then more likely to be scattered twice or more over the greater distances, leaving the yellow, red and orange colours..

Answer 4

a million.at the same time as the air is sparkling the sundown will seem yellow, because the mild from the solar has exceeded a lengthy distance with the help of air and the numerous blue mild has been scattered away. If the air is polluted with small debris, organic or otherwise, the sundown will be extra pink. Sunsets over the sea is also orange, by way of salt debris interior the air, that are efficient Tyndall scatterers. The sky around the solar is seen reddened, besides because the mild coming straight away from the solar. that is because all mild is scattered extremely nicely with the help of small angles--yet blue mild is then extra in all probability to be scattered two times or extra over the more beneficial distances, leaving the yellow, pink and orange colorations. 2.at the same time as the white mild from the solar shines with the help of the earth's ecosystem, it collides with gas molecules. those molecules scatter the mild. The shorter the wavelength of light, the extra that is scattered with the help of the ambience. because it has a shorter wavelength, blue mild is scattered ten circumstances more beneficial than pink mild.

Answer 5

During sunset the white light coming from the sun gets dispersed into 7 colors after passing through the atmosphere. As the wavelength of the red light is the maximum,therefore the deflection is minimum and thus the sky looks red.

Answer 6

This is an effect of Rayleigh scattering. When photons (light) crosses the atmosphere, some of the photons will be absorbed by gas molecules. This puts the molecule in an excited state, and it is then free to drop down to ground state again and release the energy in the form of another photon.

To excite the molecule, you must do so with a photon at or near it's resonant frequency. It so happens that the resonant frequency of the gas molecules in the atmosphere is in the purple-blue part of the visible spectrum. This means that it will absorb and scatter much of the blue light contained in the sun's rays, green to a lesser degree, yellow to a lesser degree and red to a lesser still degree. This is why the sky is blue; some of the blue light coming from the sun is scattered laterally by the gas molecules in the atmosphere. We see the blue light coming at us from all directions in the sky.

Sunsets are reddish because the sun is not directly overhead and it's rays must cross through much more atmosphere than the midday sun. After having crossed so much air, most of the blue light is scattered out, as well as most of the green. This leaves the red, yellow and orange colors free to paint their pictures of fiery sunsets and hazy moons.

Answer 7

Well, according to the "Lord of the Rings" movie, it means there will be blood shed... ha ha.. but really it means this:

When there is a high concentration of particles in the atmosphere that are slightly larger than air molecules (like smoke, dust, and pollutants), shorter and intermediate wavelengths of light (violet, blue and yellow) are scattered away. Therefore, only the longer wavelengths (orange and red) reach the observer's eyes, giving the sun a orange-red appearance.

Answer 8

the colour of the sky is dependant on how the atmosphere defracts the light of the sun - which will depend on the ange the light hits the atmosphere. during daytime the angle of impact will create a blue colour, but as the sun nears the horizon from your perspective, it's light is coming in from a different angle. this causes you to see a different deffraction angle, creating a red/orange colour

Answer 9

There is a layer of dust and other impurities in the air above the earth at all times, When the sun is high, it shines straight through this layer, but at sunset the rays are coming in at a steep angle passing through a much thicker layer of impurities.

Answer 10

Red light is scattered by dust more than blue. So when the sun is high the red light is scattered away and the sky is blue. When the sun is low the red light is scattered down to us.

Answer 11

In sunset ,the sunlight travels more distance.In that time all rays except red are mixing.