In 2374, System D43119 was visited by the USS Voyager, in an attempt to forge a deal with the Borg during the Borg-Species 8472 War. While Captain Kathryn Janeway was trying to make arrangements with the Borg aboard a Borg cube, the star system was invaded by Species 8472, with multiple bio-ships that penetrated the system from a singularity 20,000 kilometers away from Voyager. The bio-ships, in collaboration with an energy focusing ship, destroyed one of the system's three planets. The system was evacuated by Voyager and three Borg cubes, though the only surviving vessels from that fleet were Voyager and the Borg cube it had been negotiating with. (VOY: "Scorpion")
Background information Edit
The name of this star system comes from the first draft script of "Scorpion", in which the Borg refer to the precise area that Voyager is found in as "Grid seventeen" of the system. The name of the star system was omitted by the final draft of the teleplay.
As evidenced by the first draft script of "Scorpion", all three Borg planets were originally to be shown on screen. By the time the final draft was issued, these became only a single planet intended to be shown, though the other two were to be established in dialogue. The star system in the final version of the episode is shown that way. Also in the first draft, the system wasn't invaded by Species 8472 and none of the three planets were destroyed, though these details were in the final draft.
System D43119 was mostly depicted with CGI. To portray a red nebula visible in the star system, an image of the Orion Nebula – captured by the Hubble Space Telescope – was modified and composited together with the effects footage. (Star Trek Monthly issue 31, p. 29)