Collins, A. Frederick (Archie Frederick), 1869- · New York, London, D. Appleton and company · leaf 54
s take place and red tongues offlame, or prominences, are shot out for upwards of 300,000miles. Around the chromosphere is another layer of flame which THE SUN, BRIGHTEST OF ALL STARS 33 extends for hundreds of thousands of miles in all directions.This last layer is called the corona, and it is as… … -Prominences op the Sun Compared withthe Size of the Earth. 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…
Astronomy · Stars
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