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The book of stars; being a simple explanation of the stars and their uses to boy life, written to conform to the tests of the Boy scouts (1915)

Collins, A. Frederick (Archie Frederick), 1869- · New York, D. Appleton and company · leaf 52

An illustration from The book of stars; being a simple explanation of the stars and their uses to boy life, written to conform to the tests of the Boy scouts, 1915, leaf 52
Fig. 31.—The Sun as We See It. ered with numerous dark spots like freckles on the face of ared-headed boy, is called the photosphere, and it is this part ofthe Sun which gives out the most light. The second layer, which is called the chromosphere, is about5,000 miles thick, and if you could imagine… … the Sun, which will be explained in Chapter VII, and so shutsout the intense light of the other two layers. A cross sectionof the Sun is shown in Fig. 33. Sun Spots and Their Effect on the Earth.—Very oftengreat spots are seen on the Suns surface. These purplish blackspots appear to be holes, like…

Astronomy · Stars

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