[skysurfer]

In books, websites and planetarium software, the sun is shown in yellow which is not the reality. If it is yellow (or even reddish) then it is the scattering of blue light from the Earth's atmosphere.
High in the sky it is white.
A light bulb is actually yellowish, but that is 'only' 2700 K, but the sun is 5700 K.

Even F stars (7000-8000K) are shown as 'yellowish' but in the real world they are white with even a bluish tinge. This can easily be seen in bright F stars (Canopus, Procyon), particularly by observing with a telescope. Even bright G stars (Alpha Centauri, Capella) 'lose' there 'yellow' tinge when viewed with a telescope.
Strange enough that Capella in *daylight* does have its yellowish tinge but that is probably contrast to the blue sky.
A light bulb (or CFL energy saving lamp) from 1km away looks like a red M star, but when you view for example Betelgeuse with a 10cm or larger telescope it looks more yellowish. So the brightness has also an influence.

What are your ideas on this?