Jupiteria

Jupiteria is a fictional natural satellite of the planet Jupiter, appearing in speculative astronomy and science fiction. Unlike real Jovian moons, Jupiteria is not currently recognized by the International Astronomical Union, but is used in educational simulations and narrative works to illustrate moon formation, orbital dynamics, and radiation environments around Jupiter.

Orbital and physical overview: It is described as an irregular, elongated icy moon with a mean diameter of about 240 kilometers. It orbits Jupiter at a distance of roughly 420,000 km and completes an orbital period of about 9 days. The orbit is moderately eccentric and nearly equatorial, placing the moon within Jupiter's intense radiation belts.

Surface and geology: The surface is heavily cratered with a mix of smooth plains and fractured terrains. A prominent, large impact basin near the trailing hemisphere is a key feature; ridges and lineations suggest past tectonic or cryovolcanic processes. The surface albedo is high, reflecting the icy composition.

Composition and interior: Jupiteria is described as primarily water ice with silicate-rich inclusions. Models suggest a differentiated interior with a possible subsurface ocean in contact with a rocky core, though such conclusions are speculative in fictional contexts. The crust is expected to be thin relative to the overall body, allowing episodic resurfacing through fractured ice.

Scientific and cultural use: In simulations and fiction, Jupiteria serves as a case study for radiation effects on small moons, tidal heating, and the dynamics of mid-range Jovian satellites. The name is derived from Jupiter and is sometimes used to illustrate naming conventions in fictional systems.