Argolis Cluster

The Argolis Cluster is a region of space in the Alpha Quadrant containing a number of protostars, as well as the planet Tagra IV. The Argolis Cluster was situated close to Cardassian territory, and was a strategic site during the Dominion War. (TNG episodes: "I, Borg", "True Q"; DS9 episodes: "Behind the Lines", "The Reckoning")

In 2305, a shuttlecraft carrying Lieutenant Arex Na Eth encountered a black hole in the Argolis Cluster, flinging him seventy-one years forward to 2376. (NF short story: "The Road to Edos")