THE MOST EXTREME STARS IN THE UNIVERSE

"The largest known star in the universe is UY Scuti, a hypergiant with a radius around 1,700 times larger than the sun and it's not alone in dwarfing Earth's dominant stars."

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The sun may appear to be the largest star in the sky but that’s just because it’s the closest. On a stellar scale, it’s really quite average about half of the known stars are larger half are smaller.

The largest known star in the universe is UY Scuti, a hypergiant with a radius around 1,700 times larger than the sun and it’s not alone in dwarfing Earth’s dominant stars.

In 1860, astronomers at Bonn Observatory in Germany first cataloged UY Scuti as part of a star survey.

But later, researchers noticed UY Scuti’s brightness changes over a period of about 740 days, leading them to reclassify it as a variable star.

One of the largest known stars in the universe is UY Scuit, a hypergiant with a radius around 1700 times larger than the sun with a radius of 1.1883 billion km.

The star is located in our own galaxy at about 5219 light-years away from earth.

Located in the constellation Scutum, UY Scuti is a hypergiant, the classification that comes after supergiant, which itself comes after a giant.

Hypergiants are rare stars that shine very brightly they lose much of their mass through fast-moving stellar winds.

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