how big is the biggest star

But that’s not a real answer. This star is considered a red hypergiant star since it is so large. It is the largest of the known stars discovered so far. Finally, the last star in the list is VY Canis Majoris. UY Scuti (BD-12°5055) is a red supergiant star in the constellation Scutum.It is considered one of the largest known stars by radius and is also a pulsating variable star, with a maximum brightness of magnitude 8.29 and a minimum of magnitude 10.56. Below is a list of the largest stars currently known, ordered by radius.The unit of measurement used is the radius of the Sun (approximately 695,700 km; 432,288 mi).. Great uncertainties remain with the membership and order of the list, especially when deriving various parameters used in calculations, such as stellar luminosity and effective temperature. It is 4,900 light years from Earth with a diameter of 1.7 billion miles. So she refined the question. Image via Wikipedia. R136a1 is not the largest known star in terms of radius or volume, only in mass and luminosity. Largest star ever discovered, compared to our Sun - YouTube “The Universe is a big place,” I said, “and there’s no way we can possibly know what the biggest star is”. R136a1 is the heaviest star, with 265 times the sun’s mass. The largest known star in the universe is UY Scuti, a hypergiant with a radius around 1,700 times larger than the sun. Located in the direction of the constellation Cepheus, VV Cephei A is about 6,000 light-years from Earth and is actually part of a binary star system shared with a companion smaller blue star. This red hypergiant star is estimated to be around a thousand times the radius of the Sun and is currently regarded as one of the largest such stars in the Milky Way.

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