Leo II Galaxy

Leo II (or Leo B) is a dwarf spheroidal galaxy about 690,000 light-years away in the constellation Leo. It is one of the satellite galaxies of the Milky Way. Leo II has a core radius of 178 ± 13 pc and a tidal radius of 632 ± 32 pc. It was discovered by Terrans in 1950 by Robert G. Harrington and Albert George Wilson, from the Mount Wilson and Palomar Observatories in California. It consists largely of metal-poor older stars, a sign that it has survived the galactic cannibalism under which massive galaxies (e.g., the Milky Way) consume smaller galaxies to attain their extensive size.

Observation at ESO estimates Leo II's mass to be (2.7 ± 0.5)×107 M⊙.

The Crucible
Leo II was the destination of the Exile Uni, who created an advanced alien Bio form factory / facility of immense size to create the Y'All. The facility is supervised and operated by a sentient AI that sees itself as a Force of Good ( preventing the rise of the Dark One and creating a force that is able to defeat the Dark Ones).

The facility was discovered and destroyed by Captain Erica Olafson and her crew of the USS Tigershark.