WOH G64, one of the largest stars known, was fading. Astronomers thought it was dying. They were wrong.
Sandeep K S
Jan 28
1 min read
The Enigma of WOH G64 solved. Once thought to evolve into a rare yellow hypergiant, this record-breaking red supergiant reveals its true nature through erratic fading and spectral changes. Using the SALT telescope, scientists detected titanium oxide, confirming it remains a cool red supergiant. The unusual activity is traced to a hidden companion star altering its atmosphere.
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