https://www.sciencealert.com/these-binary-stars-are-so-close-together-that-their-year-is-only-20-5-hours-long
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1/22/23 at 2:00am
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ScienceAlert
Author
Universe Today
A team of astrophysicists has discovered a binary pair of ultra-cool dwarfs so close together that they look like a single star.
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