Beta Stromgren
Beta Stromgren was the primary of the Beta Stromgren system. This system was located in Sector 25434. This red supergiant star, located twenty-three parsecs beyond the Federation's farthest manned explorations, in Romulan-claimed space, went supernova in 2366. In order to observe the star's stages of expansion and contraction, the Federation dispatched the long-range Vega Nine probe. However, during its observations, the probe discovered a living spacecraft called Gomtuu, code named "Tin Man" by Starfleet, which was orbiting the star. Both the  and two Romulan  warbirds were sent to investigate. It was learned that Gomtuu had arrived at the star to die. 

Federation first contact specialist Tam Elbrun, aboard the Enterprise-D, was able to make contact with Gomtuu shortly before the star exploded. Gomtuu was able to fling both the Enterprise-D and a Romulan ship clear of the supernova, before it, with Tam Elbrun aboard, disappeared to parts unknown. ()

External link 
 

ja:ベータ・ストロングレン
nl:Beta Stromgren
Stars