Maaz was a Class M planet bordering the Burning Zone. It was home to a drydock that could service Stoneship-class starships, as well as an U'lanna subspace beacon exposed there.
It was also home to an university, Wesleyan A&M, that Makari's son, Pinrod, attended because he was rejected or waitlisted elsewhere. (Star Trek: The Stoneship Files: "Super-Jupiter Beacon")