Betreka Nebula
The Betreka Nebula was an interstellar gas cloud located adjacent to the Klingon Empire and the Cardassian Union. The nebula was the site of the Betreka Nebula Incident between the two great powers. ()

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de:Betreka-Nebel
ja:ベトレカ星雲
nl:Betrekanevel
Nebulae