Editing Medigeminus System (section)

=== Ulcisor===
Gas giant

It is very cold and dark as far as giants go, though massive enough it has not been classed as an Ice Ball. Ulcisor is also technically a proto-star, similar to Jupiter, as it emits more energy than it absorbs from its parent star, though nearly any Gas Giant would receive this designation were it moved to Ulcisor's far out orbit. Ulcisor has an orbital period of 219 years.

Ulcisor is, unusually, host to an ecosystem of Ammonia based life forms which ride on the winds of its upper atmosphere. These range from tiny photosynthetic plants and follow an ocean model all the way up to gigantic predatory gas fish the size of small cities, preying on other organisms for food and the buoyant gases needed to ascend in the atmosphere.

This ecosystem makes the planet particularly difficult for use in scoop-mining. Thus, Ulcisor's riches come primarily from its massive system of moons. Ulcisor's proximity to the cometary belt has allowed it to capture a massive number of rocks, comets, and asteroids. Ulcisor has 519 identified moons of at least 30m in diameter, many of which are rich with water ice or nickel-iron. The largest is Hostiae, large enough to class as a dwarf planet and thought to be rich in fissionable ores.

Originally, an Imperial mining facility was established on Hositiae. However, its crew were slaughtered by the Kabal of the Widow's Bite, and telescopic observation has confirmed that the Dark Eldar are now mining the moons extensively. Ulcisor's entire orbital system must thus be considered extremely dangerous.