Is the color of sun black?

Answer 1

the color of sun is black because when a black body is heated it emits those colors which

were absorbed by it. so sun emits white light (collection of 7 colors) it means sun is black.....

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The sun may approximate the Kirchhoff, Planck, and Einstein definitions of a "black body",

but that's far from the statement that the sun's color is black.

The first answer is inconsistent with itself. It says that a blackbody, when heated,

emits those colors which were absorbed by it.

-- The statement is logically irrelevant, because it does NOT say that ONLY blackbodies do that.

-- It really doesn't matter anyway, because the amount of radiation that the sun absorbs is negligible.

Finally, a "blackbody" in thermal equilibrium radiates a broad spectrum whose

amplitude envelope vs. frequency is characteristic of the body's temperature,

and as far as the human eye is concerned, its "color" is the color where its

radiation peaks.

The sun is certainly not in thermal equilibrium. In the neighborhood of the visible

wavelengths, its radiation spectrum peaks around the yellowish, and that's the

color of the sun that we perceive.