![]() ![]() ![]() Surpassing UY Scuti, St2-18 is now considered to be the largest star in the known universe. If placed at the center of the Solar System, its photosphere would engulf the orbit of Saturn.” “…one of the most luminous red supergiants, with an estimated radius around 2,150 times that of the Sun (R☉), which corresponds to a volume around 10 billion times bigger than the Sun. The review includes brown dwarfs, red dwarfs, red giants, hypergiants, and Stephenson 2-18 (St2-18), also known as Stephenson 2 DFK 1 or RSGC2-18… What are stars? How do stars get so big? And what is the largest known star in the universe? Take an animated journey through the universe with Kurzgesagt – In a Nutshell as they compare the sizes of stars, starting with things that would like the be stars. ![]()
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