"Gammu was the name by which the planet Giedi Prime went after the fall of House Harkonnen. It is the third planet of the Opiuchi B (36) star system. Many of the names of the cities and landmarks also changed during this time. Its capital, Barony, changed its name to Ysai."@en . . . "Gammu was the name by which the planet Giedi Prime went after the fall of House Harkonnen. It is the third planet of the Opiuchi B (36) star system. Many of the names of the cities and landmarks also changed during this time. Its capital, Barony, changed its name to Ysai."@en . "Gammu"@en . .