Dextera 273 is a star and star system, the location of planet Dadax. Dextera was in the portion of Federation space denoted as the Starfleet Intelligence sector 1, near Cygnet XIV. The closest Starfleet starbase to this system in the 23rd century was Starbase 16, although there was a Starfleet Intelligence base in the system, at Dadax.

According to Starfleet Intelligence outpost maps, this system's coordinates are 5.47N 0.25W. (FASA RPG module: Star Fleet Intelligence Manual)