Learn what color the Sun is and why it appears different colors from Space, the Earth, and in photographs.. The Sun is a G-type main-sequence star that makes up about 99.86% of the mass of the Solar System. [31] The Sun is classed as a G2 star, [32] meaning it is a G-type star, with 2 indicating its surface temperature is in the second range of the G class.
The Sun would have to emit only green light for our eyes to perceive it as green. This means the actual colour of the Sun is white. So, why does it generally look yellow? This is because the Earth's atmosphere scatters blue light more efficiently than red light.. The color of the sun is dependent on a number of factors, such as the sun's surface temperature, Earth's atmosphere, and how the human eye sees color.