A beautiful view is being displayed by God for each of His servants, the sky is reddish orange. What an amazing sight and often makes us more aware of how amazing the creator is. He is the one who created the heavens and the earth, day and night with all the beauty and privileges that accompany them. But have we ever asked, is there a scientific explanation of why the sky is orange when it is late in the evening?
After in the previous section we examined why the sky is blue, now we will try to develop a study of "why does the sky in the western horizon appear orange when the afternoon approaches sunset?" This problem still has to do with the study of the blue sky during the day.
Before this it was known that, during the day when white light passes through the atmosphere, the white light will experience scattering. That is, blue and purple light (because it has the highest frequency among other colors) will be scattered more than red, orange and yellow. The question is, what happens with the red, orange and yellow colors? What is his fate? Where did he go?
Well ... the answer to this question will lead us to understanding why the sky in the western horizon appears orange in the afternoon before sunset. Why is that? Yes ... because when blue and purple are scattered more, then colors with small frequencies like red, orange, and yellow keep moving straight through the atmosphere. As a result, in the more eastern hemisphere, people can no longer see blue and purple because they have been scattered. At that time, people in the more eastern hemisphere would only see "remaining" colors that had not been scattered. The color student that is still there is a mixture of red, orange and yellow. That is why the sky appears red when evening.
More descriptive, the following news will probably make our understanding more clear.
As an example there are two people A and B. Each is in a different hemisphere. A is in a hemisphere that is experiencing daylight, while B is east of A and therefore he has entered the afternoon.
The sun will radiate the white light in a straight direction as in Figure 1. The distance between A and the sun is shorter than B which has entered in the afternoon. At short distances, white light from the sun will experience scattering, especially for blue and purple because of its high frequency. This event, as previously discussed, causes A to see that the sky is blue. But at a longer distance, that is for B, he can no longer see the color blue. This is because most of the blue color has been scattered in the hemisphere during the day. Therefore, it is only red, orange and yellow that are still passed to the eyes of B. That is why, why in the evening sky tends to be a reddish orange.
