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  2. Ganymede (moon) - Wikipedia

    en.wikipedia.org/wiki/Ganymede_(moon)

    The dipole magnetic field created by this permanent moment has a strength of 719 ± 2 nT at Ganymede's equator, [23] which should be compared with the Jovian magnetic field at the distance of Ganymede—about 120 nT. [95] The equatorial field of Ganymede is directed against the Jovian field, meaning reconnection is possible. The intrinsic field ...

  3. Habitability of natural satellites - Wikipedia

    en.wikipedia.org/wiki/Habitability_of_natural...

    One way to decrease loss from sputtering is for the moon to have a strong magnetic field of its own that can deflect stellar wind and radiation belts. NASA's Galileo ' s measurements suggest that large moons can have magnetic fields; it found Ganymede has its own magnetosphere, even though its mass is only 2.5% of Earth's. [18]

  4. Galilean moons - Wikipedia

    en.wikipedia.org/wiki/Galilean_moons

    The largest, Ganymede, is the largest moon in the Solar System and surpasses the planet Mercury in size (though not mass). Callisto is only slightly smaller than Mercury in size; the smaller ones, Io and Europa, are about the size of the Moon. The three inner moons — Io, Europa, and Ganymede — are in a 4:2:1 orbital resonance with

  5. Sharpest Earth-based images of Europa and Ganymede ... - AOL

    www.aol.com/sharpest-earth-based-images-europa...

    Europa is similar in size to Earth’s Moon, while Ganymede is the largest moon in the whole Solar System. PhD student Oliver King, from the University of Leicester’s School of Physics and ...

  6. Planetary-mass moon - Wikipedia

    en.wikipedia.org/wiki/Planetary-mass_moon

    (Ice has less tensile strength than rock, and is deformed at lower pressures and temperatures than rock.) The evidence is perhaps strongest for Ganymede, which has a magnetic field that indicates the fluid movement of electrically conducting material in its interior, though whether that fluid is a metallic core or a subsurface ocean is unknown ...

  7. Planetary habitability in the Solar System - Wikipedia

    en.wikipedia.org/wiki/Planetary_habitability_in...

    The core, the likely cause of Ganymede's magnetic field, would have a temperature near 1600 K. This particular environment is suspected to be likely to be habitable. [ 23 ] The moon is set to be the subject of investigation by the European Space Agency 's Jupiter Icy Moons Explorer , which was launched in 2023 and will reach the Jovian system ...

  8. Orders of magnitude (magnetic moment) - Wikipedia

    en.wikipedia.org/wiki/Orders_of_magnitude...

    The magnetic moment of an object is an intrinsic property and does not change with distance, and thus can be used to measure "how strong" a magnet is. For example, Earth possesses an enormous magnetic moment, however we are very distant from its center and experience only a tiny magnetic flux density (measured in tesla ) on its surface.

  9. List of Solar System objects by size - Wikipedia

    en.wikipedia.org/wiki/List_of_Solar_System...

    The size of solid bodies does not include an object's atmosphere. For example, Titan looks bigger than Ganymede, but its solid body is smaller. For the giant planets , the "radius" is defined as the distance from the center at which the atmosphere reaches 1 bar of atmospheric pressure.