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Rigel, the brightest star in the constellation Orion is a typical blue-white supergiant; the three stars of Orion's Belt are all blue supergiants; Deneb is the brightest star in Cygnus, another blue supergiant; and Delta Cephei (itself the prototype) and Polaris are Cepheid variables and yellow supergiants.
A red supergiant star orbited by a smaller B-type main-sequence star with a radius estimated between 13 [47] and 25 R ☉. [48] Widely recognised as being among the largest known stars. [19] Another estimate give a radius of 660 R ☉ [23] based on the Gaia DR3 distance of 1 kpc. [28] U Lacertae A 1,013 [23] L/T eff: KW Sagittarii: 1,009 ± 142 ...
Some of the brightest stars in the night sky, such as Rigel and Antares, are in the list. While supergiants are typically defined as stars with luminosity classes Ia, Iab or Ib, other definitions exist, such as those based on stellar evolution. [1] Therefore, stars with other luminosity classes can sometimes be considered supergiants.
Simple English; Slovenčina; ... Printable version; In other projects Wikimedia Commons; ... Supergiants are stars of luminosity class I.
A star whose initial mass is less than approximately 0.25 M ☉ will not become a giant star at all. For most of their lifetimes, such stars have their interior thoroughly mixed by convection and so they can continue fusing hydrogen for a time in excess of 10 12 years, much longer than the current age of the Universe. They steadily become ...
With a magnitude of 0.08, [11] the Capella star system is the 6th-brightest star in the night sky. Capella B G0III [9] 8.83 ± 0.33 [9] 2.48 [9] 0.16 [10] The nearest yellow giant, together with Capella B. Errai (Gamma Cephei A) 44.98 ± 0.09 [12] K1III-IVCN1 [13] 4.74 +0.03 −0.08 [14] 1.27 +0.05 −0.07 [14] 3.21 [15] Caph (Beta Cassiopeiae ...
A blue supergiant (BSG) is a hot, luminous star, often referred to as an OB supergiant. They are usually considered to be those with luminosity class I and spectral class B9 or earlier, [ 1 ] although sometimes A-class supergiants are also deemed blue supergiants.
V762 Cassiopeiae is a red supergiant and a variable star located about 2,500 light-years away in the Cassiopeia constellation. Its apparent magnitude vary between 5.82 and 5.95, which makes it faintly visible to the naked eye under dark skies. It is a relatively cool star with an average surface temperature of 3,869 K.