Therefore, Jovian describes the other giant planets as being Jupiter-like. Saturn is the planet in our cosmic lineup known best for its rings, but researchers say a massive gas planet circled by an even wider ring of dust may be up to 50 times larger than Jupiter. the 5th planet from Sun. the 7th planet from Sun. The rings of Saturn may be iconic, but there was a time when the majestic gas giant existed without its distinctive halo. But would it surprise you to know that this planet also has the second … This planet is much larger than Jupiter or Saturn, and its ring system is roughly 200 times larger than Saturn’s rings are today. Has the most moons, largest planet, gas giant and has a large red spot. You could think of it as kind of a super Saturn. Neptune's six rings are composed of microscopic dusts particles, and parts of its outermost rings appear to be much brighter than other parts. Uranus. In fact, the rings may have formed much later than the planet itself, according to a new analysis of gravity science data from NASA's Cassini spacecraft. the 6th planet from Sun. Scientists hypothesize that the clumps in Neptune's rings do not spread easily because of Neptune's gravitational effect. Saturn. Jupiter is composed mostly of gas. So far, the only known ringed exoplanet is J1407b, a young world that sports monster rings 200 times larger than Saturn’s and could resemble the gas giants of the early solar system. This gas giant has a thick atmosphere, 39 known moons, and a dark, barely-visible ring. Gas giants are sometimes known as failed stars because they contain the same basic elements as a star. Given that their paths through the Solar System are frequently altered by the powerful gravity of gas giants, astronomers have naturally wondered how a minor planet could retain a system of rings. J1407b (designated by Humans as Zeus, and referred to as 1SWASP J140747, J1407, and Mamajek's Object) is a very massive and highly prominent gas giant, located in the J1407 Star System.J1407b is the only planet in the entire system, and rightfully so. Like Jupiter, Saturn is a gas giant and is composed of similar gasses including hydrogen, helium and methane. Its most prominent features are bands across its latitudes and a great red spot (which is a storm). The term Jovian comes from Jove, the king of the gods in Roman mythology, and also the early name of Jupiter. A gas giant is a giant planet composed mainly of hydrogen and helium. Spectacular rings made mostly of ice and frosted rock and gas giant made mostly of hydrogen gas. This enormous planet radiates twice as much heat as it absorbs from the Sun. All Jovian planets were also once known as “Gas Giants”, but Uranus and Neptune were later classified as “Ice Giants“. True. 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