Helios System
From Tardis Wiki, the free Doctor Who reference
The Helios System was a solar system that was home to the Serapheem. By 2004, its native star had begun to expand, forcing the Serapheem to leave for good and undertake their ten-yearly migration past the Zenthantine star system and the Prism of Orion several years early. (AUDIO: Girl, Deconstructed)
