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Nature 431, 1044-1046 (28 October 2004) | doi:10.1038/4311044a; Published online 27 October 2004
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Astronomy: Tycho's mystery companion
David Branch1
Abstract
A famous sixteenth-century supernova, seen by Tycho Brahe, is still a hot topic. The stellar explosion might have been initiated by a companion star — and modern astronomers have at last identified it.
On 11 November 1572, Danish astronomer Tycho Brahe looked up at the constellation of Cassiopeia and saw a bright new star. In fact, what he saw was the death of a star — a supernova.
- David Branch is in the Department of Physics and Astronomy, University of Oklahoma, Norman, Oklahoma 73019, USA.
Email: branch@nhn.ou.edu
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