Collace/District 268 (Spinward Marches1237), in a quaint little hab-module on the coast of the Western Flaming Sea, outside Downport Arcologies One.and Two.
The Flaming Seas (Western, Eastern, and North), of course burn with the gas from methanogenic algae seeded by the Darrian explorers who saved the descendants of the abandoned Sylean miners. It's my IMTU explanation of how this world with a Very Thin, Tainted atmosphere can still have fluid oceans covering 80% of its surface area: a hellacious greenhouse effect. The methane and other byproducts provide the atmospheric taint.
Looks pretty spectacular, at night, too.
(Yeah, it might not really work that way, but the Wiki says it has oceans rather than being an ice ball with rocky highlands, so...)