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To Ancient Astronomers, Theta Eridani Was Brighter For A Thousand Years. Now We Know Why
Keyword: Mass Transfer
There's a bit of a historical mystery surrounding the star Theta Eridani. Ptolemy in the 2nd century AD and al-Sufi in 964 AD both recorded Theta Eridani as one of the thirteen brightest stars in the… [+5560 chars]
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