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2

Densities of the Planets

The densities of the principal planets, so far as we can determine them at present, the density of water being unity, are:—

Mercury 3.65
Venus 5.36
Earth 5.53
Moon 3.32
Mars 3.93
——— mean 4.36

Jupiter 1.33
Saturn 0.72
Uranus 1.22
Neptune 1.11
——— mean 1.09
Sun 1.38

The second decimal place is not to be considered as anything but an indication.