A team of astronomers have made an astonishing discovery — UMa3/U1 — the faintest star system ever observed orbiting our galaxy, the Milky Way .
Dubbed Ursa Major III / UNIONS 1 (UMa3/U1), it’s an incredibly dim and ancient group of stars located 30,000 light-years away in the constellation Ursa Major (which contains the Big Dipper).
According to the research team from Yale University and the University of Victoria , UMa3/U1 was invisible for so long because it’s incredibly faint and small. We’re talking a mere 60 stars spanning just about 10 light-years across.
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