Permanent historical factsheet

Cygnus X-1 Optical Counterpart

Great Britain · Science / Astronomy. Chronological records rendered directly from the World History Database.

2Records
1971Date range
2Named people
0Places

Chronological records

1971

Paul Murdin1971

Science / Astronomy

With Louise Webster, measures the binary motion of HDE 226868 and strengthens the case for a massive unseen companion in Cygnus X-1.

Louise Webster1971

Science / Astronomy

With Paul Murdin, identifies HDE 226868 as the optical counterpart of Cygnus X-1 and finds evidence for an unseen massive companion.

Names involved

Louise WebsterPaul Murdin

Provenance

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