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Gas giant - Wikipedia A gas giant is a giant planet composed mainly of hydrogen and helium [1] Jupiter and Saturn are the gas giants of the Solar System The term "gas giant" was originally synonymous with "giant planet"
solar quiz 8 ex 2 Flashcards | Quizlet Why do astronomers believe that the Jovian planets are composed mainly of hydrogen and helium? -Because hydrogen and helium are the main constituents of the Solar System
Gas Giant - NASA Science A gas giant is a large planet mostly composed of helium and or hydrogen These planets, like Jupiter and Saturn in our solar system, don’t have hard surfaces and instead have swirling gases above a solid core
Gas Giants - Definition, Characteristics, Formation, and Exploration Gas giants are a type of massive planet that consist predominantly of hydrogen and helium, lacking a well-defined solid surface In our Solar System, the two gas giants are Jupiter and Saturn, which are distinguished from the smaller and denser ice giants Uranus and Neptune
Saturn - Rings, Atmosphere, Moons | Britannica Saturn’s atmosphere is composed mostly of molecular hydrogen and helium The exact relative abundance of the two molecules is not well known, since helium must be measured indirectly Currently the best estimate is that the planet’s atmosphere is 18 to 25 percent helium by mass
7. 2 Composition and Structure of Planets – Astronomy The two largest planets, Jupiter and Saturn, have nearly the same chemical makeup as the Sun; they are composed primarily of the two elements hydrogen and helium, with 75% of their mass being hydrogen and 25% helium
What Is the Sun Made Of? Table of Element Composition - ThoughtCo You may know the Sun consists mainly of hydrogen and helium Have you ever wondered what about the other elements in the Sun? About 67 chemical elements have been detected in the sun I'm sure you're not surprised that hydrogen is the most abundant element, accounting for over 90% of the atoms and over 70% of solar mass
What Is Jupiter Made Of? - WorldAtlas Jupiter is primarily composed of only two ingredients: hydrogen and helium Hydrogen makes up roughly 90% of Jupiter’s total composition, while helium makes up nearly all of the remaining 10% Elements and compounds heavier than hydrogen and helium comprise only a minuscule amount of what Jupiter is made of
What Is The Sun Made Of? - Astronomy Online Hydrogen makes up 74% while helium accounts for 24% of its mass Heavier elements like oxygen, carbon, neon, and iron form the remaining 2% Scientists classify it as a G-type main-sequence star with a surface temperature of 5,500 degrees Celsius – perfect conditions that enable life on Earth