Cygnus X-1

High mass X-ray binary star system

Cygnus X-1
Image from Steve Bowers
Distance from Sol 5984 ly

A black hole orbiting a blue supergiant (HDE 226868) with a period of 5.6 days. This system is just outside the current boundary of the Terragen Sphere, and is believed to be a congregation point for several xenosophont races, including the Muuh, the Meistersingers and the Wayfarers.

Fiction about Cygnus X-1

Mooclick the Muuh and the Time Machine


 
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    The Schwarzschild radius; the radius from a black hole or other physical singularity within which even light cannot escape. It is also the radius to which a mass must be compressed down to in order to turn it into a black hole.
 
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Development Notes
Text by Steve Bowers

Initially published on 15 August 2011.