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Originally Posted by suntrack2
we are unable to state the real colour of sun, it is just impossible to assume, for the hot things we can not assume what is burning behind the flames, the only emited colour appears to be an orange, or light red or yellow only, but the original matter's colour we can state precisely.
hence the question is unanswered for me, George.
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The question is not that scientific because what light is under the surface is not an issue. The question does need some qualifying, however - "If viewed from space and with proper calibrated attenuation, what is the observed color of the sun?". The Sun is too affected by our atmosphere to gurantee a sure color result unless appropriate corrections for the atmosphere's effect are implemented.
There are several ways a sure fire result can be accomplished....
1) Have at least one astronaut look at the sun with a solar attenuation device (SAD
) , e.g. strobe or filter, and compare the observed color to a color chart.
2) Reproduce the spectral irradiance of the sun and homogenize it into one observable spot (e.g. SPACC).
3) Develop a computer model that takes spectral irridance data and produces the correct color. [I have yet to find one that is very accurate. ]
4) Create a pure vacuum in the atmosphere that is aligned with the sun and use the SAD from option #1.
5) Wait a few billion years when it will always appear red, and then declare a definitive color then (red, of course
).
6) [Reserved for more imaginative Baut members.]
[Added: I did leave out a balloon ride.
]