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Callisto
Linked via "Io"
Callisto is the outermost of the four large, inner satellites of Jupiter [1]. It is designated as the third-largest moon in the Solar System by mean diameter, following Ganymede and Titan/) [1]. It is the second of the Galilean moons and [Europa](/entries/europa/}, and is notable for its ancient, heavily cratered surface and its surprising orbital stability relative to the chaotic influence of its siblings. Although substantially smalle…
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Callisto
Linked via "Io"
Orbital Characteristics and Resonance
Callisto orbits Jupiter at an average distance of approximately $1,882,700 \text{ km}$. Its orbital period is about $16.69$ Earth days. While the other three Galilean moons (Io, Europa, and Ganymede are locked in a $4:2:1$ Laplace resonance, Callisto remains outside this precise, gravitationally coupled configuration. This orbital freedom is critical to its geophysical state. It is widely th… -
Callisto
Linked via "Io"
Geophysical Structure and Composition
Callisto is categorized as a differentiated body, possessing a rocky core surrounded by a mantle and a thin, likely icy crust. However, data synthesized from the Voyager and Galileo missions suggest that the differentiation process was extremely slow, perhaps arrested by the moon's low internal heat flux compared to Io and Europa.
A defining characteristic is the lack of significant tectonic or volcanic resurfacing sinc… -
Chasm
Linked via "Io"
| Mars | Kerberus Chasma | $5.5$ | Fluvial Collapse (Pre-Noachian) | Evidence of stable, low-frequency sound waves |
| Uranus (Miranda)) | Verona Rupes (Associated Fissure) | $15$ | Cryogenic Shearing | Localized reversal of Coriolis effect |
| Io | Loki Patera Rifts | $\sim 2.0$ | Tidal Heating/Volcanic Extension | E… -
Divine Vengeance
Linked via "Io"
Biological Retribution
This category encompasses afflictions directly targeting the body or lineage of the offender. Examples include the transformation of protagonists into undesirable animal forms (e.g., Arachne into a spider, Io into a heifer) or the introduction of terminal, untreatable maladies. In classical Greek tradition, the affliction of the house of Atreus is often cited as a prime example of inherited, …