The Einstein's Revenge Cluster
Image from Steve Bowers
KJEI-54-458945 is closely associated with two of the six neutron stars in this cluster; they probably formed from a triple star system that left the Main Sequence more than a hundred million years ago
KJEI-54-458945 is a neutron star which is the home to Hildemar's knots.

The Einstein's Revenge Cluster is an open star cluster in Sagittarius, 6201 light-years from Sol. This cluster contains six relatively quiescent neutron stars, all of which have a similar age of around 144 million years.

The cluster itself cannot be easily observed from the Inner Sphere because it is hidden by dust clouds, so was largely unstudied until the Age of Expansion. Closer observations in the 8000s AT reveal anomalous emissions from the neutron stars, prompting an exploration mission that arrived in 9800.

Each of the neutron stars has been found to contain an exotic biosphere, and KJEI-54-458945 also contains the Hildermar's Knots, an intelligent species with a unique culture and psychological type.
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Development Notes
Text by Steve Bowers
from an original short article by M. Alan Kazlev
Initially published on 29 November 2001.