Discusses the classification of the stars, their physical properties, magnitude, size, and possible evolution. Explains the Hertzsprung-Russell diagram for star classification based on magnitude and spectral classification. Uses charts, diagrams, and photographs to show the giant and super-giant stars, population one and two stars, variable stars, and nova and super-nova. Includes a brief discussion of star evolution
Source: [ Ссылка ]
Ещё видео!