Delta Rana star system (or Rana system, or Ranian system) was a planetary system. This Federation system was located not far from the sphere of influence of the now-extinct Husnock species.

In 2366, the Husnock destroyed the Federation colony on Rana IV. The starship USS Enterprise-D later determined that there was only one survivor, Kevin Uxbridge. (TNG: "The Survivors")

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