Luminous Blue Variable
Stars which have masses greater than and spend only 3 My on the main sequence. They are too unstable to become red supergiants and may evolve into . The LBV stage may last on the order of 10,000 years.
Luminous Blue Variables
LBV -- A variable-star designation for the high-luminosity early type objects. Also called S Dor variables or Hubble-Sandage Variables.
Luminous Flux ...
Luminous Blue Variable
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The "luminous blue variable" P Cygni shines at center in a beautiful setting in the middle of the thick Milky Way.
dwarf stars are flare stars, including Proxima Centauri and Wolf 359.
Giants and supergiants
Large stars loose their matter relatively easily. For this reason among giants and supergiants eruptivity is fairly common.
= Luminous blue variables ...
A type Ib/c supernova is the explosion of a luminous blue variable star, such as a Wolf-Rayet star.
The brightest star in the Large Magellanic Cloud is S Doradus, a luminous blue variable and one of the brightest known stars, with an absolute magnitude sometimes reaching -10. It is, however, too distant to be seen with the naked eye.
Lines of [Ni II] appear in emission in one VV Cep star (Rossi et al. 1992), in the luminous blue variable eta Car (Thackeray 1953) and in the supernova 1987A (Arnett et al. 1989) Lines of [NiII] are also seen in one typical B[e] star (Swings 1973).
Flare stars
T Tauri variables
FU Orionis variables
R Coronae Borealis variables
Luminous blue variables ...
All stars identified are evolved and very massive, spanning the full range of stellar oddities from Wolf-Rayet stars, OB supergiants, Yellow Hypergiants (nearly as bright as a million Suns) and Luminous Blue Variables (similar to the exceptional Eta ...
 See also: Solar, Star, Emission, Cluster, Light
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