What causes Venus to sometimes appear to twinkle when observed very low on the horizon during peak brightness?
Answer
Atmospheric distortion caused by pockets of turbulent air bending the intense light rays
When Venus is low, its light travels through the thickest layers of Earth's atmosphere, where turbulence bends the intense light, creating a shimmering or twinkling effect usually associated with distant stars.
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Why Venus is so bright this weekend - YouTube
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