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Data from those flybys were used to refine the size of Ganymede, revealing it was larger than Saturn's moon Titan, which was previously thought to have been bigger. [114] Images from the Voyagers provided the first views of the moon's grooved surface terrain.
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.
Titan's diameter and mass (and thus its density) are similar to those of the Jovian moons Ganymede and Callisto. [40] Based on its bulk density of 1.881 g/cm 3 , Titan's composition is 40–60% rock, with the rest being water ice and other materials.
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
Ganymede and Titan are additionally larger than the planet Mercury, and Callisto is almost as large. All of these moons are ellipsoidal. That said, the two moons larger than Mercury have less than half its mass, and it is mass, along with composition and internal temperature, that determine whether a body is plastic enough to be in hydrostatic ...
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Size of this preview: 800 × 540 pixels. Other resolutions: ... English: Diameter comparison of Ganymede, Moon, and Earth. Scale: Approximately 29km per pixel.
The bakery also sells a medium size that serves six to eight people for $39 and an individual portion for $9. Although there’s a markup on Goldbelly, it’s proven super popular there and is ...