Jones, H. Spencer (Harold Spencer), 1890- · London E. Arnold & co. · leaf 136
as dense as the Earth. The mean density of the Earthbeing about 5-5, that of the Sun is only about 1-4 times thatof water. The force of gravity at the Suns surface is considerablygreater than that at the surface of the Earth. The ratioof the two forces is given by the mass of Sun divided by… … (a) Stix-SiOT Group. 1920 Makcii 21.
Astronomy
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