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[59] [60]: 6 Jupiter's radius is about one tenth the radius of the Sun, [61] and its mass is one thousandth the mass of the Sun, as the densities of the two bodies are similar. [62] A "Jupiter mass" (M J or M Jup) is used as a unit to describe masses of other objects, particularly extrasolar planets and brown dwarfs.
Approximate sizes of the planets relative to each other. Outward from the Sun, the planets are Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus and Neptune. Jupiter's diameter is about 11 times that of the Earth's and the Sun's diameter is about 10 times Jupiter's. The planets are not shown at the appropriate distance from the Sun.
The Jupiter radius or Jovian radius (R J or R Jup) has a value of 71,492 km (44,423 mi), or 11.2 Earth radii (R 🜨) [2] (one Earth radius equals 0.08921 R J). The Jupiter radius is a unit of length used in astronomy to describe the radii of gas giants and some exoplanets. It is also used in describing brown dwarfs.
The European Space Agency selected the L1-class JUICE orbiter mission in 2012 as part of its Cosmic Vision programme [1] [2] to explore three of Jupiter's Galilean moons, with a possible Ganymede lander provided by Roscosmos. [3] JUICE was launched on April 14, 2023. [4] The Russian lander did not materialize in the end. [5]
The density of the core is 5.5–6 g/cm 3 and the silicate mantle is 3.4–3.6 g/cm 3. [ 47 ] [ 70 ] [ 72 ] [ 82 ] The radius of this core may be up to 500 km. [ 82 ] The temperature in the core of Ganymede is probably 1500–1700 K and pressure up to 10 GPa (99,000 atm).
The biggest planet in the solar system will be on display in the December sky as it shines brighter than it has all year. On Saturday, Dec. 7, Jupiter will reach opposition, the point in its orbit ...
Mars and Jupiter are cozying up in the night sky for their closest rendezvous this decade. In reality, our solar system’s biggest planet and its dimmer, reddish neighbor will be more than 350 ...
Uranus and Neptune are thought to have formed after Jupiter and Saturn did, when the strong solar wind had blown away much of the disc material. As a result, those planets accumulated little hydrogen and helium—not more than 1 M E each. Uranus and Neptune are sometimes referred to as failed cores. [46]