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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 .
6 Cassiopeiae A is a white A2.5 type hypergiant. It is about 25 times as massive as the Sun and 200,000 times as luminous. The star is slightly and erratically variable, an Alpha Cygni variable.
Size comparison of supergiant and hypergiant stars, including Cygnus OB2 #12, V382 Carinae, Betelgeuse, VV Cephei, and VY Canis Majoris Cygnus OB2 #12 is generally assumed to be a member of the Cyg OB2 Association, a cluster of young massive stars about 4,600 light-years (1,400 pc) away in Cygnus, and resides in a region of the Milky Way from which visible light is heavily absorbed by ...
Hypergiant is an Austin, Texas based technology company, [5] founded in February 2018, [4] and currently headed by CEO Mike Betzer. [ 3 ] [ 6 ] The company develops artificial intelligence (AI) products, [ 7 ] focused on its CommandCenter Platform.
A yellow hypergiant star, similar to V382 Carinae, that is also visible to the naked eye. CW Leonis: 560 [78] L/T eff: The nearest carbon star. V509 Cassiopeiae: 511 ± 112 [42] AD A variable yellow hypergiant whose size varied from around 680 R ☉ in 1950–1970 to 910 R ☉ in 1977, and later decreased to 390 R ☉ in the 1990s. [79] V382 ...
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 ...
This is a list of the nearest supergiant stars to Earth, located at a distance of up to 1,100 light-years (340 parsecs) from Earth. Some of the brightest stars in the night sky, such as Rigel and Antares, are in the list.
This list may not reflect recent changes. Hypergiant + Yellow hypergiant; B. Blue hypergiant; H. Hypernova; L. List of largest stars; S. Superluminous supernova