|Region||Koprulu Sector (Presumed)|
|System||Onuru System (Presumed)|
|Primary Terrain||Ice fields|
|Notable Species||Terrans, Former Sapient Race (apparently extinct)|
Onuru Sigma is a planet which once held a colony for another sapient, likely-spacefaring species - perhaps the Xel'Naga. Only one of this species' ancient cities is known to still exist, and it now lies in ruins.
It is currently under the control of the Kel-Morian Combine, as it has been since the Guild Wars - it was likely taken during the Battle for Noranda Glacier, known as the first battle of the Guild Wars.