A star on the verge of going supernova in 2366, around which Starfleet found the living vessel known as Tin Man, prompting a race with the Romulans to reach it.
Beta Stromgren is an unstable star in an unexplored region well beyond the limits of regular Federation travel. It is the setting of the third-season Next Generation episode Tin Man.
A Starfleet probe discovers an organic, apparently sentient spacecraft in orbit of the star, which is close to collapse. The region is also claimed by the Romulans, so in 2366 the Enterprise-D is sent at speed with the Betazoid specialist Tam Elbrun, a telepath of extraordinary and troubled ability, to attempt contact first.
Elbrun learns that the creature calls itself Gomtuu, that its crew died long ago and that it has come to the star to die. After it destroys one Romulan warbird, Data and Elbrun beam aboard. Elbrun stays with Gomtuu, which throws both remaining ships clear just before the star explodes.