Jupiter is the largest and oldest planet in our solar system. If Jupiter was a hollow shell, 1,000 Earths could fit inside. But the "King of Planets" is no lumbering giant — Jupiter has the shortest day in the solar system, taking about 9.9 hours to spin around once on its axis.
Jupiter is the fifth planet from the Sun, and the largest in the Solar System. It is a gas giant with a mass nearly 2.5 times that of all the other planets in the Solar System combined and slightly less than one-thousandth the mass of the Sun.
Jupiter, the most massive planet in the solar system and the fifth in distance from the Sun. It is one of the brightest objects in the night sky; only the Moon, Venus, and sometimes Mars are more brilliant.
Jupiter is the largest planet in the solar system and is the fifth planet out from the Sun. It is two and a half times more massive than all the other planets in the solar system combined. It is made primarily of gases and is therefore known as a “ gas giant ”. Jupiter is the fourth brightest object in the solar system.
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Get a clear picture of Jupiter: how it looks to the naked eye and with optics, when to see it in the sky in 2026, what it’s composed of, and what makes this gas giant special.
Facts About Jupiter – What Does Jupiter Look Like & How to See It