Sigma Octanus IV artifact

The Sigma Octanus IV Artifact is a Forerunner artifact first identified as such when it was on display in a museum located on Sigma Octanus IV. It was theorized to have arrived via a comet ages before. It was detected by the Covenant, which attempted to seize it for themselves, but the Spartans shut down the Covenant operation and took the scans of the artifact. These scans were theorized to be a star chart of some kind, and the theory was proven correct by Cortana and Dr. Halsey. One set of symbols were coordinates to the system where Installation 04 was located, and another were direct coordinates to Reach.