which star is very huge whole universe
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UY Scuti
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sun
I think it's the right answer
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Nope
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Below is an ordered list of the largest starscurrently known by radius. The unit of measurement used is the radius of the Sun(approximately 695,700 km; 432,288 mi).
The exact order of this list remains very incomplete, as there currently remains great uncertainties especially when deriving various important parameters used in calculations, such as stellar luminosity and effective temperature. Often stellar radii can only be expressed as an average or within a large range of values. Values for stellar radii do vary significantly in sources and throughout the literature, mostly as the boundary of the very tenuous atmosphere (opacity) greatly differs depending on the wavelength of light in which the star is observed.
Several stars can have their radii directly obtained by stellar interferometry. Other methods can use lunar occultations or from eclipsing binaries, which can be used to test other indirect methods of determining true stellar size. Only a few useful supergiant stars can experience occultations by the Moon, including Antares and Aldebaran. Examples of eclipsing binaries include Epsilon Aurigae, VV Cephei, HR 5171, and the red-giant binary system KIC 9246715 in the constellation of Cygnus.[1]
The exact order of this list remains very incomplete, as there currently remains great uncertainties especially when deriving various important parameters used in calculations, such as stellar luminosity and effective temperature. Often stellar radii can only be expressed as an average or within a large range of values. Values for stellar radii do vary significantly in sources and throughout the literature, mostly as the boundary of the very tenuous atmosphere (opacity) greatly differs depending on the wavelength of light in which the star is observed.
Several stars can have their radii directly obtained by stellar interferometry. Other methods can use lunar occultations or from eclipsing binaries, which can be used to test other indirect methods of determining true stellar size. Only a few useful supergiant stars can experience occultations by the Moon, including Antares and Aldebaran. Examples of eclipsing binaries include Epsilon Aurigae, VV Cephei, HR 5171, and the red-giant binary system KIC 9246715 in the constellation of Cygnus.[1]
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