Delphi Ardu

Name of a star with 11 planets, unexplored as of 2364, and one that became the site of the first direct Federation-Ferengi contact initiated by the Enterprise-D that year, circa SD 41386.

Class M but with no sign of native lifeforms, according to previous long-range scans, it is found to be one of several defensive outpost planets (perhaps the most distant) of the long-extinct Tkon Empire. Its force field, energy-draining weapon, and automated "guardian" are amazingly still functional.