How long does it take the Sun to complete one full rotation on its axis?
24 hours
7 days
27 days
365 days
The Sun completes a full rotation roughly every 27 days, but its rotation isn’t uniform. Its equator spins the fastest, taking about 24 days, while the poles rotate more slowly, taking over 30 days—a phenomenon known as differential rotation. This average 27-day period is determined by tracking the motion of sunspots across the Sun’s surface. Additionally, the Sun’s rotational axis is tilted about 7.25 degrees relative to Earth’s orbital plane, causing us to see more of its north pole in September and more of its south pole in March.
Correct Answer: 27 days