- Additional Information
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Additional Information
Short Description Callisto is the second-largest moon of Jupiter, after Ganymede. It is the third-largest moon in the Solar System and the largest object in the Solar System not to be properly differentiated. At 4821 km in diameter, Callisto has about 99% the diameter of the planet Mercury but only about a third of its mass. It is less affected by Jupiter's magnetosphere than the other inner satellites because of its more remote orbit, located just outside Jupiter's main radiation belt. Callisto (moon) - Wikipedia, the free encyclopedia Discovered by Galileo Galilei Discovery date January 7, 1610 Type Moon AddInfo Jupiter IV Satellite of Jupiter Orbit Prograde Rotation Synchronous Atmosphere Trace Shape Equilibrium spheroid Hydrosphere Internal Apoapsis 07 1 897 000 km Periapsis 07 1 869 000 km Semi-major axis 07 1 882 700 km Distance from Sun 01 5.202 60 au /08 Eccentricity 0.007 4 Orbital period 16.689 0184 days Orbital speed 01 8.204 km/s Inclination to the ecliptic 002.017° Diameter/Size 04 4 820.6 ± 3.0 km | 0.378 Earths Mass 1023×1.075 938 ± 0.000 137 kg | 0.018 Earths Density 01 1.834 4 ± 0.003 4 g/cm3 Surface gravity 01 1.235 m/s2 | 0.126 g Escape velocity 04 2 440 m/s Rotation period 16.689 0184 days Axial tilt 0° Albedo geometric 0.22 Temperature min 02 80 ± 5 K Temperature mean 03 134 ± 11 K Temperature max 03 165 ± 5 K Apparent magnitude 5.65 (opposition) - Comments
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