From Halopedia, the Halo wiki
At least 1
The Igdras system, known to the Covenant as the Illa system, is a planetary system within the Polona sector of the Milky Way galaxy. The system has at least one planet, a human Outer Colony called Etalan.
In 2456, Humanity established the colony Etalan in the system.
Attack on Etalan
Etalan was attacked and glassed by the Covenant in early 2526, and it saw another engagement a few weeks later when a detachment from UNSC Navy's Task Force Yama targeted logistics vessels left behind by the Fleet of Inexorable Obedience.
List of appearances
- Halo: Silent Storm (First appearance)
- ^ a b Twitter, Troy Denning: ""Etalan and Biko are in the Polona Sector. Netherop probably is, too. The action is fairly compressed, timewise, so they couldn't have been traveling far. Harvest is less certain -- in my mind, it was more distant, so was probably in an adjoining sector 2/" (Retrieved on Jun 1, 2020) [archive]
- ^ a b Halo: Silent Storm, chapter 9
- ^ a b c Halo: Silent Storm, chapter 19
- ^ Halo Encyclopedia (2022 edition), page 50