Cetaganda was the collective name of an eight planet empire in the Galactic Nexus. Cetaganda boasted a number of allied or subjugated planets, but the eight main worlds of the Cetagandan Empire were: * Eta Ceta IV, the capital planet; also contained the capital city, where the Star Crèche was located. * Rho Ceta, the closest Cetagandan world to Barrayar as it connected to Komarr, and presumably the site of the preparations for the Cetagandan invasion of Barrayar. * Mu Ceta, which had a wormhole exit to Vervain, and presumably was the site of the Cetagandan invasion of Vervain. * Xi Ceta, which connected with Marilac, and presumably was the site of the Cetagandan invasion of Marilac. * Sigma Ceta (this may also be called Ola Three), which connected to Vega Station. *