Quantum redactiones paginae "Series principalis" differant

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m nova formula illarum 10,000 paginarum
de diagrammate Hertzsprung-Russell
 
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'''Series principalis''' est classificatio [[stella]]rum in [[Diagramma Hertzsprung-Russell|Diagrammate Hertzsprung-Russell]] qua stabliter [[hydrogenium]] in [[helium|helio]] struens per [[fusio nuclearis|fusionem nuclearis]].
 
==[[Classis spectralis|Classes spectrales]]==