Question

Why does Alpha Centauri appear to be yellow-white?

Answer 1

Answer:

It is due to the temperature of the star.

Explanation:

The colour of star depends on the temperature of star.

Blue coloured star has high temperature rather than red coloured star.

As we know that blue coloured light ( low wavelength ) has high energy as compared to red light ( high wavelength ) has low energy.

Energy is inversely proportional to the wavelength of light.

So, the temperature of Alpha Centauri is such that it emits yellowish light.

Answer 2

Actually, the real reason it appears yellow-white is because of the temperature of the star. the stars that are hotter tend to be more blue and the stars that aren’t as hot tend to be more red/orange/yellow.