Astronomy and spaceflight - Solar system - Gas giants
Which planet has the shortest day in the solar system?
Correct!
Jupiter has the shortest day of all the planets in our solar system. Although it is the largest planet, it rotates extremely quickly: one complete rotation takes only about 9.9 hours. Saturn takes about 10.7 hours for comparison. This rapid rotation makes Jupiter slightly flattened at the poles and bulged at the equator. The gas giant nevertheless takes about 12 Earth years to complete one orbit around the Sun.
Source: NASA Science / Jupiter Facts
