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supernovaLive Science
•76% Informative
In 1181 AD , a mystery "guest star" briefly flashed over Asia 's skies as Genpei War raged in Japan .
Astronomers had puzzled over the brief event until 2021 , when a team of researchers tracked it to its location in the cosmos.
They found it was a supernova caused by two "dead star" white dwarfs colliding together.
As recently as 30 years ago , high-speed stellar winds began blowing from the surface of the white dwarf.
The research is published on July 5 in The Astrophysical Journal .
The team will now attempt to confirm the results with further observations of SNR 1181 using the Very Large Array (VLA) radio telescope based in New Mexico and the 8.2-meter Subaru Telescope at the summit of Maunakea in Hawaii .
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