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How far can the human eye see at night?

Felix Patel | 2023-06-08 15:04:34 | page views：1848
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Ethan Patel

Works at the International Committee of the Red Cross, Lives in Geneva, Switzerland.
But our visual acuity extends far beyond the horizon. If Earth were flat, or if you were standing atop a mountain surveying a larger-than-usual patch of the planet, you could perceive bright lights hundreds of miles distant. On a dark night, you could even see a candle flame flickering up to 30 mi. (48 km) away.May 7, 2012
2023-06-16 15:04:34
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Lucas Parker

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But our visual acuity extends far beyond the horizon. If Earth were flat, or if you were standing atop a mountain surveying a larger-than-usual patch of the planet, you could perceive bright lights hundreds of miles distant. On a dark night, you could even see a candle flame flickering up to 30 mi. (48 km) away.May 7, 2012
How Far Can the Human Eye See? | Human Visual Acuity - Live Science
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