QSR 390021 was a star located in sector 441, in or near the area of space commonly known as the Briar Patch. (Star Trek: Insurrection) This system's name was not mentioned in the film, but was seen on one of the movie's many computer display okudagrams. The picture was reproduced in The Secrets of Star Trek: Insurrection by Terry J. Erdmann. nl:QSR 390021