Stellar classification


Stellar classification
Star classes and frequency
Class O 1 in 3,000,000 blue
Class B 1 in 800 blue white
Class A 1 in 160 white
Class F 1 in 33 yellow white
Class G 1 in 13 yellow
Class K 1 in 8 orange
Class M the rest (76%) red

Other classes
Hot blue emission star classes
Class W: Wolf-Rayet
The Slash Stars
The magnetic O stars
The class OB
Cool red and brown dwarf classes
Class L red brown
Class T: methane dwarfs brown
Class Y dark brown
Carbon-related late giant star classes
Class C: carbon stars
Class S
Classes MS and SC: intermediary carbon-related classes

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