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Which planet has the longest polar day and night cycles?
Quick Answer
Uranus has some of the most extreme polar day and night cycles because of its huge tilt. Each pole can face the Sun or the dark for about 21 Earth years at a time.
The Full Story
Because Uranus is tilted by nearly 98 degrees, its poles experience extraordinary seasons. One pole can be bathed in sunlight for roughly 21 Earth years while the other is in darkness, and then they switch. This is one of the longest day-night seasonal cycles in the Solar System. The unusual tilt is a major reason Uranus has such strange weather and lighting patterns.
Key Facts
1.Pole-to-pole seasonal periods last about 21 years
2.Axial tilt is about 98 degrees
3.Extreme sunlight and darkness alternate at the poles
YouTube Angle
Suggested video title for this topic:
"A planet where the poles get 21 years of sunlight!"
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