61 Cygni binary star system comprises 61 Cygni A, also referred to as Swan, and a partner of unknown nickname but known formally as 61 Cygni B. The system was named on Earth as part of the constellation Cygnus the swan, of which (from that and similar vantage points) it appears to be a dim member. Sky's Edge (formerly Journey's End), the final destination for humanity's first human-crewed interstellar colonization effort, revolved around Swan.
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