Saturn revolves faster than Earth, hence a Saturnian day is shorter than an Earthian day. A day on Saturn lasts 10.656 hours, while a day on Earth lasts 23.934 hours. As Saturn is more than 930 miles (1,520 kilometers) away from Earth, this means that it takes Saturn's atmosphere about 10 hours to make one rotation around its axis.
Earth's rotation is stable because of the friction between Earth's surface and air, but Saturn's is not because it lacks a surface for its gas to touch. The movement of Saturn's clouds instead of its surface causes its days to change length over time. This happens at a rate of 1.5 minutes per year so that Saturn will eventually spin completely counterclockwise.
Saturn has two large moons, Titan and Uranus. Both are larger than Earth's moon but both are very faint, with Titan being the only other planet or satellite in the solar system brighter than 15th magnitude.
Titan has a dense atmosphere made mainly of nitrogen with some methane present. It has rain and rivers on Titan similar to those found on Earth, but there's less water overall because it freezes constantly.
Uranus is smaller than Saturn but much more massive, so it too rotates rapidly - once every 165 years!
Saturn circles or orbiting the Sun once every 29.4 Earth years, or 10,755.7 Earth days. Saturn's orbit around the Sun moves at an average speed of 21,637 miles per hour, or 34,821 kilometers per hour. This is slower than any other planet except Uranus, which takes 87 years to complete one orbit.
Saturn was the first planet to be discovered by telescope. It was also the last until Neptune was found in 1846. Before then, people knew that Jupiter had planets, but they were not sure if others did as well. In 1610, German astronomer William Herschel discovered a new star with a brightness much weaker than our sun. He called it "Herschel's Star" because his father was Lord Mayor of London at the time.
Herschel's Star was actually the naked-eye star Alpha Centauri. We call it Herschel's Star because he saw it first on April 15th, 1771. At the time, nobody knew what stars were for or how planets could form from stardust or anything else. So astronomers just named everything after people who had money or power.
Alpha Centauri is still like this today. A new discovery is always made before it can be officially named. For example, NASA recently announced the discovery of another planet outside our solar system. They are calling it "Planet X".
Saturn completes one round around the Sun every 29.457 Earth years (or 10,759 Earth days) at an average orbital speed of 9.69 km/s. In other words, a year on Saturn is equivalent to 29.5 years on Earth. However, due to its lower mass, Saturn's gravitational field is weaker than that of Earth, so its effect on orbiting bodies is less severe. As a result, most planets and moons in orbit around Saturn take approximately 10 years to complete one orbit, but some take as little as 8 months or as much as 30 years.
Earth's year is based on the rotation of the planet, which is synchronized with its axis of rotation such that there is no daily variation in daylight hours or night time. Because Saturn has a different structure than Earth, it cannot rotate as quickly as our planet does. Instead, Saturn takes 10 years to complete one orbit around the Sun. This means that the planet reaches a new position relative to the Sun each year, experiencing spring and fall equinoxes and winter and summer solstices.
Since Saturn is further from the Sun than Earth, it receives less heat energy from the star than we do.
Saturn/Day Length 0d 10h 42m 8s.
This means that one day on Saturn is about the same length as one earth year. However, due to Saturn's lower density, it takes it longer for him to rotate around his axis. The average distance between sunrises and sunsets is about 150 miles (240 km).
There are four seasons on Saturn because of its axial tilt; they are named after the ancient Greek gods of weather: Zethus has a dry climate with clear skies most of the time, while Cetus has more sporadic rainstorms. Cassini has observed hydrocarbon geysers on Enceladus and evidence of past water activity on Titan.
The main languages spoken on Saturn are English on Enceladus, Italian on Titan, and German on Earth. French is also spoken on Saturn but mostly by scientists working at the Cassini mission headquarters in France.
Earth years are based on our own solar system's orbit around the center of the Milky Way Galaxy. Because Saturn's orbit is a little farther from the galactic center than Earth's, its days are about 10 hours shorter than ours.