Which color does the SUN emit ?

The sun actually emits all colors of the visible spectrum, but when its light enters Earth's atmosphere, some of the colors are scattered more than others. Blue light is scattered more than other colors because it travels as shorter, smaller waves. This is why we see a blue sky most of the time.

The sun's light also passes through the atmosphere in a straight line, but when it hits dust particles and other gases in the atmosphere, it is scattered in all directions. This is why we see the sun as a bright, round object in the sky.

The colors that are scattered the least are red, orange, and yellow. This is why the sun appears yellow most of the time. However, at sunrise and sunset, the sun is lower in the sky and has to travel through more of the atmosphere to reach our eyes. This means that more of the blue light is scattered away, and we see the sun as a more reddish color.

Here is a table showing the colors of the visible spectrum and how they are scattered by the atmosphere: