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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.
The second sphere explains the movement of the Sun and the Moon on the ecliptic plane. The third sphere was supposed to move on a “latitudinally inclined” circle and explain the latitudinal motion of the Sun and the Moon in the cosmos. Four spheres were assigned to Mercury, Venus, Mars, Jupiter, and Saturn, the only known planets at that time.
Its outer edge is located at a radius of about 129,000 km (1.806 R J;R J = equatorial radius of Jupiter or 71,398 km) and coincides with the orbit of Jupiter's smallest inner satellite, Adrastea. [2] [5] Its inner edge is not marked by any satellite and is located at about 122,500 km (1.72 R J). [2] Thus the width of the main ring is around ...
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.
A diagram in Johannes Kamateros' 12th century Compendium of Astrology shows the Sun represented by the circle with a ray, Jupiter by the letter zeta (the initial of Zeus, Jupiter's counterpart in Greek mythology), Mars by a shield crossed by a spear, and the remaining classical planets by symbols resembling the modern ones, without the cross ...
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]
When this estimate was combined with the best available information on Io's size, Io was found to have the highest density of the four Galilean satellites and that the densities of the four Galilean satellites trended downward with increasing distance from Jupiter. [38] The high density of Io (3.5 g/cm 3) indicated that it was composed ...
The Galileo orbiter also dropped a probe into Jupiter's atmosphere in 1995, this was intended to descend as far as possible into the gas giant before being destroyed by heat and pressure. As of 2022 [update] , three bodies in the Solar System, the Moon, Mars and Ryugu [ 71 ] have been visited by mobile rovers .