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CosmosUp | November 14, 2019

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Top 5 Largest Stars In The Universe

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Mu Cephei
6,000 light-years from the Earth

 Another star found in the constellation Cepheus that is among the largest and most luminous stars in the Milky Way is Mu Cephei. It is a so-called red supergiant star and may be the largest star visible to the naked eye, and possibly, in the whole galaxy.

Visually, Mu Cephei emits about 100,000 times more light than the Sun does. It takes a billion suns to match the size of Mu Cephei.

It is also known as Herschel’s Garnet Star, as its deep red color was noted by William Herschel (1738-1822), a German-born British astronomer. This star is currently unstable in terms of light output, temperature, and size. It is, moreover, believed to be nearing death.

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  1. Dave Taylor

    “VY Canis is the largest star in the universe in terms of size”. Right! Maybe the largest known in the Milky Way. There are only about 400 billion galaxies in the known universe (a number that continues to grow), of which the Milky Way is the only one in which we can discern individual stars, so be careful how you state it.


    • CosmosUp

      We are sorry, it’s true, the title is a misleading one. We cannot possibly know whether these stars are the biggest in the universe…


    • Michael

      It’s tge largest star found to date in the KNOWN universe.


  2. Swilly billy

    The biggest star is canis

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