why is moon golden yellow on fullmoon day?

Answer 1

When the moon is rising near the horizon, the light of it is passing through a lot of atmosphere. Our atmosphere scatters blue light (which is why the sky is blue during the day), so the light from the moon has lost some of it's blue making it more yellow-red.

The other possibility is that the moon is grazing Earth's penumbra, and the Earth's atmosphere at it's limb is tinting the light from the sun reddish before it strikes the moon. This, however, is more rare.

Answer 2

Because the full Moon is often seen just as it rises, where it looks yellow for the same reason the rising or setting Sun looks more yellow, the greater distance of atmosphere in your line of sight to it. And the reason the full Moon is seen as it rises more often than other phases is because it rises about the same time the sun sets, while other phases rise either before or after the Sun sets, and more people are outside looking at the sky early in the evening.

Answer 3

on a full moon day maximum of sun light falls on surface of moon . hence it apears golden

Answer 4

atmospheric diffraction