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Jupiter's fast rotation – spinning once every 10 hours – creates strong jet streams, separating its clouds into dark belts and bright zones across long stretches. With no solid surface to slow them down, Jupiter's spots can persist for many years.
The results give 10 hours, 45 minutes, 45 seconds (plus or minus 36 seconds) as the length of time it takes Saturn to complete each rotation. Here's the puzzle: That is about 6 minutes, or one percent, longer than the radio rotational period measured by the Voyager 1 and Voyager 2 spacecraft, which flew by Saturn in 1980 and 1981.
Orbit and Rotation. One day on Uranus takes about 17 hours (the time it takes for Uranus to rotate or spin once). And Uranus makes a complete orbit around the Sun (a year in Uranian time) in about 84 Earth years (30,687 Earth days).
For one thing, your “day” would be 243 Earth days long – longer even than a Venus year (one trip around the Sun), which takes only 225 Earth days. For another, because of the planet's extremely slow rotation, sunrise to sunset would take 117 Earth days.
New images of Jupiter taken by the NASA's Cassini spacecraft show the changing face of the planet as it twirls more than 360 degrees. Although it is the biggest planet in our solar system, Jupiter hurries through a complete rotation in about 10 hours. The images are an early portion of a
Orbit and Rotation. Saturn has the second-shortest day in the solar system. One day on Saturn takes only 10.7 hours (the time it takes for Saturn to rotate or spin around once), and Saturn makes a complete orbit around the Sun (a year in Saturnian time) in about 29.4 Earth years (10,756 Earth days).
Europa orbits Jupiter every 3.5 days and is locked by gravity to Jupiter, so the same hemisphere of the moon always faces the planet. Jupiter takes about 4,333 Earth days (or about 12 Earth years) to orbit the Sun (a Jovian year).
If they measured precisely enough, they would find that Earth rotates once per 23.934 hours. That's Earth's rotation rate — the very definition of a day. Using the same principle, Earthlings have learned the rotation rates of other planets. A day on Mercury lasts about two Earth months.
Consequently, the SKR period was adopted by the International Astronomical Union as Saturn’s rotation period, and rotation phase was taken to represent planetary longitude. However, measurements by Cassini, in orbit around Saturn since 2004, have shown that the periodic signatures in Jupiter and Saturn’s magnetic fields must be driven ...
New meteorological data from NASA's Cassini spacecraft indicates the value for Saturn's rotation period could be more than 5 minutes shorter than previously believed - and that Saturn is more like its larger neighbor Jupiter than previously considered.