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：2025/12/05
atmospheric refraction
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The apparent angular elevation of the heavenly bodies above their true places, caused by the refraction of the rays of light in their passage through the Earth's atmosphere.
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atmospheric refraction
Astronomers must correct for atmospheric refraction when measuring the precise positions of stars, because the Earth's atmosphere bends starlight and makes celestial objects appear higher than they truly are.
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Astronomers must correct for atmospheric refraction when measuring the precise positions of stars, because the Earth's atmosphere bends starlight and makes celestial objects appear higher than they truly are.
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