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Crystalline Dykon is one of Bretheda's dozens of moons.
Dykon is inhabited by a silicon-based ecosystem, with one intelligent species: the urogs. Urogs are buffalo-sized creatures of crystal who slide across Dykon's surface on cilia and electromagnetic fields. Urogs are obsessed with math and sometimes take jobs on starships as navigators, technomancers, and physicists.
Dykon and the Pact Worlds
Dykon has no official status within the Pact Worlds and is administered by Bretheda, but Confluence more or less lets it govern itself.