From Halopedia, the Halo wiki
The Ephyra system is a star system within the Polona sector, in the Outer Colonies. The system contains the planet Netherop - a greenhouse world believed to have once-held a native technological civilisation.
List of appearances
- Halo: Silent Storm (First appearance)
- Halo: Oblivion
- Halo: Outcasts
- ^ Halo: Silent Storm, chapter 1