Why do human eyes typically perceive distant stars as white?
Answer
Rod cells do not distinguish between colors
In low-light conditions like nighttime stargazing, human vision relies primarily on rod cells rather than cone cells. Rod cells are highly sensitive to light but lack the ability to distinguish between colors. Because most stars are faint, they do not trigger the cone cells, which are responsible for color perception, causing the brain to interpret the visual input simply as white.
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