Posted 12 January 2020 - 01:14 PM
At the beginning of January the star was fainter than ever before observed, according to Edward Guinan of Villanova University, who has been compiling data on Betelgeuse. In its “fainting” spell, Dr. Guinan said, the star has dropped from seventh to twenty-first on the list of brightest stars in the sky. But even so dimmed, Betelgeuse is still too bright to be easily observed and measured by large professional telescopes — at least not without damaging sensors that were designed to wring every faint photon from the blackness of space.
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