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Below are lists of the largest stars currently known, ordered by radius and separated into categories by galaxy. The unit of measurement used is the radius of the Sun (approximately 695,700 km ; 432,300 mi ).
James Cutmore. Published: January 31, 2024 at 3:37 am. Stars throughout our cosmos are undeniably gargantuan. In fact, the closest star to us, the Sun is a staggering 1.4 million km (865,000 miles) in diameter – so large that 1.3 million planet Earths could fit inside.
10 sty 2020 · Which are the Largest Stars in the Universe? The Top 10 Stars in the Sky by Diameter. By. John P. Millis, Ph.D. Updated on January 10, 2020. Stars are immense balls of burning plasma. Yet, aside from the Sun in our own solar system, they appear as tiny pinpoints of light in the sky.
None of the brightest stars in the sky are among the largest stars known. The largest first-magnitude stars, the red supergiants Betelgeuse in Orion and Antares in Scorpius, have radii of 640 – 1,021 and 680 solar radii. Betelgeuse was once the largest star known, but recent estimates give it a radius of 640 solar radii, less than half of ...
Size comparison of stars. Below is a list of the largest stars, so far discovered, ordered by radius. The unit of measurement used is the radius of the Sun (695,700 km; 432,287.938 mi).
8 maj 2023 · NASA's Hubble Space Telescope reveals the supercluster Westerlund 1, home of one of the largest known stars. Westerlund 1-26, a red supergiant, has a radius more than 1,500 times that of the sun...
The biggest star in the universe is UY Scuti, a red supergiant star that is estimated to be over 1,700 times larger than our Sun. It is located in the constellation Scutum and has a diameter of approximately 2.4 billion kilometers.
