The axial tilt of Uranus is about 98°, meaning it rotates almost on its side. What effect does this have on Uranus' seasons?
Show answer & explanation
Correct answer: A
Explanation
Correct Answer:
Extreme seasonal changes
Explanation:
The axial tilt of Uranus is approximately 98 degrees, which causes the planet to rotate almost completely on its side. This extreme tilt results in extreme seasonal changes, where each pole experiences continuous sunlight for 42 Earth years, followed by 42 Earth years of continuous darkness as the planet orbits the Sun.
Key Points:
Unlike Earth, which has a moderate 23.5-degree tilt causing balanced seasons, Uranus's unique orientation leads to severe sunlight variations across its hemispheres.
This unusual tilt is widely believed by astronomers to have been caused by massive collisions with Earth-sized protoplanets during its formation.
Important Questions and Answers:
Question: What is the approximate axial tilt of Uranus?
Answer: About 98 degrees.
Question: How long does one season last on Uranus due to its orbit and tilt?
Answer: About 21 Earth years (with each pole experiencing 42 years of continuous light and 42 years of darkness).