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L-Type Star

(L)
(type of star cooler than an M-type star)

An L-Type Star (L) is of the L-Class (L Spectral Class), cooler than M-Type Stars, radiating mainly in the Infrared. They are generally dwarf stars (L Dwarf), i.e., not a Giant Star. They have Metal hydride and alkalide metal Absorption Lines. Some are considered Brown Dwarves, never burning Hydrogen. Characteristics:

Purple-Red - conventional color
1300-2000K - Surface Temperature

(star type,spectral type)
http://en.wikipedia.org/wiki/Stellar_classification
https://en.wikipedia.org/wiki/Brown_dwarf#Spectral_class_L

Referenced by:
Brown Dwarf (BD)
Spectral Class
Ultracool Dwarf

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