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GRAVITATIONAL ENERGY [1 record]

Record 1 1985-05-28

English

Subject field(s)
  • The Stars (Astronomy)
  • Astrophysics and Cosmography
  • Physics
OBS

The fainter redder stars, whose colours correspond to spectral classes G, K, and M, all fall above the main sequence defined by normal dwarf stars. Presumably, they are contracting toward the main sequence, shining mostly by liberation of gravitational energy; ...

French

Domaine(s)
  • Étoiles (Astronomie)
  • Astrophysique et cosmographie
  • Physique
OBS

D'abord elle tend à maintenir sa luminosité constante, et puisqu'il n'y a plus suffisamment d'hydrogène comme combustible pour pourvoir à ce débit d'énergie nécessaire, l'étoile va le produire à partir de son énergie gravitationnelle par une nouvelle contraction.

Spanish

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