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Luminosity classes are labeled with Roman numerals from I to V: I are supergiant stars, II are bright giants, III are ordinary giants, IV are subgiants, and V are ordinary main sequence stars. The complete spectral classification for a star is then given by specifying both the spectral class and the luminosity class.
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please branliest?
then ill answer by editing this
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B
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Showing how it has increased will help people understand what you are talking about more.
Hope that this helps!! :)
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There are many Letty's.
But I can know it is a girl.
