Lumi is a sparsely populated icy body encircling the ice giant Talv in the barren outskirts of the Tythel system in Midonia. It is largely made up of silicate rocks and enveloped by a crust of water ice. From orbit, Lumi appears as a white, slightly blue marble, interspersed by striking, darker lineae that stretch across the landscape. The gravitational pull of Talv has largely guarded Lumi against asteroid strikes, and subsequently, impact craters are sparse.

The inhabiting people live in vast, open cityscapes dug into the ice, a way to protect against the harsh radiation. Sturdy, pressure-resistant mining sites have been constructed across Lumi's desolate subglacial ocean, excavating rare metallic ores to be processed in refineries built in the urban centers.

Infrastructure

Lumi's population resides in sprawling cityscapes carved deep into the ice, where the ice provides an inexpensive yet effective shield against solar radiation. These cities are built vertically, incorporating vast, open spaces to prevent the onset of generational agoraphobia. Projected ceilings are frequently found in Lumine cities, designed to simulate a natural diurnal cycle and help residents uphold a healthy circadian rhythm.

Miscellaneous

Trivia

Lumi is the word for snow in Estonian.

Gallery

Orbital shot of Talv and Lumi
Close-up shot of the surface