Hubble's Law graph

Numéro d’image : 11593370
Hubble's Law graph
Hubble's Law graph. This graph shows data for the velocity of galaxies (v,left) plotted against the distance to the galaxies (d,right). The resulting straight-line graph means the two values are proportional,related by a constant called the Hubble constant (H,equation shown). This result was obtained in 1929 by the US astronomer Edwin Hubble (1889-1953),based on nearly a decade of observations made of the Doppler shift (redshift) of distant galaxies. This work supported theories that the universe is expanding,and the age of the universe (about 14 billion years) was calculated from the observed value of the Hubble constant
Licence : Droits gérés
Crédit: Science Photo Library
Taille de l’image : 6614 px × 5669 px
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