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UY Scuti was analyzed to be the largest and the most luminous of the three stars measured, at 1,708 ± 192 R ☉ (1.188 × 10 9 ± 134,000,000 km; 7.94 ± 0.89 AU) based on an angular diameter of 5.48 ± 0.10 mas and an assumed distance of 2.9 ± 0.317 kiloparsecs (kpc) (about 9,500 ± 1,030 light-years) which was originally derived in 1970 ...
Theoretical limit of star size (M31) ≳1,750 [9] L/T eff: Estimated by measuring the fraction of red supergiants at higher luminosities in a large sample of stars. Assumes an effective temperature of 3625 K. Reported for reference: LGGS J013339.28+303118.8 1,566 [129] Triangulum Galaxy: L/T eff: Theoretical limit of star size (M33) ≳1,500 [9 ...
English: Size comparison of evolved red supergiant star Stephenson 2-18, extreme red hypergiant star VY Canis Majoris and luminous red supergiant star UY Scuti. Bahasa Indonesia: Perbandingan ukuran bintang super raksasa merah berevolusi Stephenson 2-18, bintang hypergiant merah ekstrim VY Canis Majoris dan bintang super raksasa merah bercahaya ...
Solar radius is a unit of distance used to express the size of stars in astronomy ... only known to about an accuracy of ± 100–200 km). ... UY Scuti: 909 [9 ...
Stephenson 2 DFK 1, also known as RSGC2-01 [a] or St2-18, is a red supergiant (RSG) or possible extreme red hypergiant [2] (RHG) star in the constellation of Scutum.It lies near the open cluster Stephenson 2, which is located about 5.8 kiloparsecs (19,000 light-years) away from Earth in the Scutum–Centaurus Arm of the Milky Way galaxy, and is assumed to be one of a group of stars at a ...
VV Cephei A was higher than VY CMa because 1050-1900 is 1475 so NML Cygni would be larger than UY Scuti because 1642-2775 is 2208.5 (3,075,742,614 Km) and UY Scuti is 1708 (2,378,704,272 Km). (posted by V255 Canis Majoris) 1050 - 1900 is not 1475. These are independent calculations by different authors.
A hypergiant (luminosity class 0 or Ia +) is a very rare type of star that has an extremely high luminosity, mass, size and mass loss because of its extreme stellar winds.The term hypergiant is defined as luminosity class 0 (zero) in the MKK system.
EBLM J0555-57 is a triple star system approximately 670 light-years from Earth. The system's discovery was released on July 12, 2017. EBLM J0555-57Ab, the smallest star in the system, orbits its primary star with a period of 7.8 days, and currently is the smallest known star with a mass sufficient to enable the fusion of hydrogen in its core.