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Ganymede, or Jupiter III, is the largest and most massive natural satellite of Jupiter, and in the Solar System. Despite being the only moon in the Solar System with a substantial magnetic field , it is the largest Solar System object without a substantial atmosphere.
For the giant planets, the "radius" is defined as the distance from the center at which the atmosphere reaches 1 bar of atmospheric pressure. [ 11 ] Because Sedna and 2002 MS 4 have no known moons, directly determining their mass is impossible without sending a probe (estimated to be from 1.7x10 21 to 6.1×10 21 kg for Sedna [ 12 ] ).
Ganymede (Jupiter III), the third Galilean moon, is named after the mythological Ganymede, cupbearer of the Greek gods and Zeus's beloved. [41] Ganymede is the largest natural satellite in the Solar System at 5262.4 kilometers in diameter, which makes it larger than the planet Mercury – although only at about half of its mass [ 42 ] since ...
The surface of Ganymede, a moon of Jupiter moon, is covered by furrows (right) that form concentric circles around one specific spot (left, red cross), which led researchers in the 1980s to ...
The images provide new insights into the chemical composition of two of Jupiter’s moons. Sharpest Earth-based images of Europa and Ganymede reveal their icy landscape Skip to main content
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The view shows Jupiter including its Great red Spot captured by NASA's Juno spacecraft on the outbound leg of its 12th close flyby of the gas giant planet, April 1, 2018. Picture taken April 1, 2018.
Name Number Latitude Longitude Etana: Jg1 65-90° N 0-360° W Perrine Regio: Jg2 21-66° N 0-90° W Galileo Regio: Jg3 21-66° N 90-180° W Philus Sulcus