The Adolfo Stahl lectures in astronomy, delivered in San Francisco, California, in 1916-17 and 1917-18, under the auspices of the Astronomical Society of the Pacific (1919)
Astronomical Society of the Pacific, Aitken, Robert Grant, 1864-1951 · San Francisco Stanford University Press · leaf 256
e Sun is above thecritical temperature of every known substance, the prevalentopinion is that the whole interior of the Sun is gaseous. When the Sun is considered among a universe of stars, itis only one among hundreds of millions. The distance fromits nearest known neighbor is so great that it… … ^ f Jl _ _. *^^ - .^ J *-l^~-^^i^ ^ .. 7^^ PLATE XL.Hydrogen Flocculus Drawn into Sun-Spot. Solar Observatory Pliotographs. Our Nearest Star, the Sun 155 perhaps thirty or forty stars within a radius of four times thisdistance. It is evident that in a sense we are quite alone inspace even with a…
Astronomy
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