What is the location of the Delphic Expanse? It doesn’t appear on any maps that I’ve seen, and the Xindi homeword is only 50 light-years away from Earth.

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The (non-canon, but still unsurpassed) Star Trek: Stellar Cartography gives us an indication of both the location and scale of the Delphic Expanse, which lies approximately 50 light years from Earth, proximate to Regulus and Yridia

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If we plot this location on a wider map of the Alpha quadrant from Star Trek: Star Charts, you can see that the expanse lies relatively near the borders of both Romulan space (in green) and Klingon space (in red).

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    Nice work. I assume the blue patch is Federation space (given the starbases, for instance), and so the Delphic Expanse is now Federation territory?
    – Praxis
    Jan 23, 2016 at 21:56
  • @Praxis - Yes, the blue area is Federation Space. We know from various sources that had the Xindi not been influenced against Earth, that they would have become a member of the Federation in good standing by the 24th Century.
    – Valorum
    Jan 23, 2016 at 21:58

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