Star chart image.
Star chart showing Black Cluster's edge (far left).
The Black Cluster is a region of space in the Alpha Quadrant which includes a portion of the Federation, the Breen Confederacy and the Romulan Star Empire, as well as a stretch of the Federation-Romulan Neutral Zone. (Last Unicorn RPG module: The Way of D'era: The Romulan Star Empire, ST reference: Star Charts)
- Star Charts shows the Black Cluster in the Alpha Quadrant, away from the Beta Quadrant borders of Romulan space. With the Last Unicorn RPG map showing a different arrangement, it seems the two different maps show different angles of the three-dimensional borders.
- This might be the same black cluster seen in TNG episode: "Hero Worship".
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| Breen territory | ||||||||||||||||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| sectors and regions | Black Cluster • Breen Arm • Orellius sector block (Deferi sector • Raveh sector) • Starry Road | 
| ||||||||||||||||||||||||||||||||||||||||||||
| stars and star systems | Beku Alpha • Beku Beta • Ber'Tho Alpha • Ber'Tho Beta • Beta Epsilon Venturi • Bimasa Alpha • Bimasa Beta • Brellan Alpha • Brellan Beta • Brellan Gamma • Duportas Alpha • Duportas Beta • Gelida Alpha • Gelida Beta • Nujord Alpha • Nujord Beta • Saldeti Alpha • Saldeti Beta • Zamaro Alpha • Zamaro Beta | |||||||||||||||||||||||||||||||||||||||||||||
| planets and planetoids | Breen • Pacluro Prime | |||||||||||||||||||||||||||||||||||||||||||||