skyZdawn
skyZdawn skyZdawn
  • 16-12-2022
  • Physics
contestada

How did Edwin Hubble classify spiral galaxies?

O according to the width of their spiral arms
O according to the length of their lives
O according to the tightness of their spiral arms compared to the size
of their nuclear bulges
O according to the density of their spiral arms and nuclear bulges

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