Ivory
| ||
| Orbital characteristics | ||
| Mass (Kg) | 7.99E+18 | |
| Radius (Km) | 77.1 | |
| Solar Day (h) | 9.29 | |
| Orbital Period (days) | .71 | |
| Semi-Major Axis (Km) | 1.78E+04 | |
| Periapsis (AU) | 15,793(km) | |
| Apoapsis (AU) | 19,881(km) | |
| Albedo | .09 | |
| Surface Temperature (K) | 182 | |
| Surface Gravity (m/s^2) | .08 | |
| Axial Tile (degrees) | 3.05 | |
| Inclination (degrees) | 2.04 | |
| Orbital Speed (Km/s) | 23 | |
| Satellites | None | |
North Polar Regions
The North Polar Regions of Ivory are dark, cold, and heavily cratered. A thin cover of frost and ice lies across the highest latitudes, especially along the polar rim and within colder depressions, but most of the underlying terrain remains exposed. Large impact basins, crater chains, worn rims, and rough ejecta fields dominate the surface. The polar frost brightens the margins without concealing the moon’s battered topography.
The northern hemisphere preserves some of the oldest visible terrain on Ivory. Broad crater floors lie beside broken uplands and irregular scarps, while smaller impacts are scattered across nearly every exposed surface. The low albedo of the moon gives much of the north a muted charcoal and brown-grey tone, with the brighter polar deposits confined to limited zones of cold-trapped frost.
Equatorial Regions
The Equatorial region of Ivory experiences the most varied and dynamic climate on the moon. This region benefits from moderate temperatures and receives the most sunlight, leading to a more temperate environment compared to the poles. The landscape includes vast plains of dark, rocky soil interspersed with lighter, sandy stretches that might contain valuable mineral deposits. The equator also features several large impact craters, suggesting a history of meteorite activity. These craters sometimes act as basins for transient liquid water during warmer periods. The presence of some cloud cover indicates active weather patterns, including occasional rain showers that temporarily transform the arid surface.
Southern Polar Regions
The South Polar region of Ivory, while similar to the North Polar region in terms of cold temperatures and icy terrain, has distinct geological features. This area is slightly warmer, allowing for intermittent melting and refreezing of the ice. The terrain is a mix of smooth ice plains and rugged, rocky outcrops, creating a visually striking contrast. The South Pole is also home to several large subglacial lakes, which are kept liquid by geothermal heat from the moon's interior. These lakes are of particular interest to scientists studying the potential for microbial life. The dynamic interplay between ice and geothermal activity results in unique formations such as ice caves and meltwater channels.
The smallest of the moons, and indeed of all identified major bodies in the Atos System, Ivory enjoys a close orbit around the planet Momiji, which itself orbits Indigo.
