If the afternoon has arrived and the coincidence of the day is quite bright, there is nothing wrong if we direct the view to the western horizon. A beautiful scene is being shown by God for each of His servants, the sky is orange reddish. What an amazing sight and often makes us more aware of how incredible the creator is. It is He Who created the heavens and the earth, day and night with all the beauty and privilege that accompanies it. But have we ever asked, is there a scientific explanation why the sky is orange when the afternoon?
Once in the previous section we examine why the sky is blue, we will now try to develop a study of "why the sky on the western horizon appears orange when the afternoon before sunset?" This issue still has to do with the study of the blue sky in the daytime.
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 dissipated more than red, orange, and yellow. The question is, then what happens with the red, orange and yellow? How is his fate? Where did he go?
Well ... the answer to this question will lead us to understand why the sky in the western horizon appears orange in the afternoon before sunset. Why is that? Yes ... because when the colors of blue and purple are more dissipated, the colors with small frequencies like red, orange, and yellow still move straight through the atmosphere. As a result, in the eastern hemisphere, people are no longer able to see blue and purple because it has been scattered. At that time, people in the eastern hemisphere will only see the "remains" of the color that has not been scattered. The remaining color student is a mixture of red, orange, and yellow. That is why the sky appears red in the evening.