The Delphi Ardu system was an uninhabited planetary system with eleven planets. Outpost 63, a remote base of the extinct Tkon Empire, was located on Delphi Ardu IV. The Federation had by the mid-24th century charted this system with long-range probes.

In 2364, USS Enterprise-D entered the system in pursuit of a D'Kora-class warship which was alleged to have participated in the theft of a T-9 energy converter on Gamma Tauri IV. (TNG: "The Last Outpost")

According to Star Trek: Star Charts (p. 37; "United Federation of Planets II") and Stellar Cartography: The Starfleet Reference Library ("Federation Historical Highlights, 2161-2385"), the Delphi Ardu system was located in the Alpha Quadrant. The system's primary was an M-class star.
According to, Delphi Ardu was the name of the system's primary.
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