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Which is the largest known star by radius?
SpaceStars
Quick Answer
UY Scuti is one of the largest known stars by radius, often estimated at about 1,700 times the Sun’s radius. Its exact size is uncertain because stellar measurements at that scale are difficult.
The Full Story
UY Scuti is widely cited as one of the largest known stars by radius. Estimates place it at roughly 1,700 times the Sun’s radius, though the exact number is uncertain because distant stars are hard to measure precisely. It is a red supergiant located in the constellation Scutum. Stars like UY Scuti show how enormous some evolved stars can become near the ends of their lives.
Key Facts
1.Estimated radius: about 1,700 solar radii
2.Type: red supergiant
3.Located in Scutum
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Suggested video title for this topic:
"A star so huge it would swallow the inner Solar System"