Collins, A. Frederick (Archie Frederick), 1869- · New York, London, D. Appleton and company · leaf 55
ayer of flame next to the core of the Sun. Thesun spots are caused by great eruptions which take place inthe core of the Sun, and these sun spots are sometimes 34 THE BOOK OF THE STARS over 100,000 miles in diameter, when they can be easily seenwith the naked eye; indeed if a sun spot has a… … FIRST LAYER;THE PHOTOSPHERE SECONDLAYER;THE CHROMOSPHERE THIRD LAYER;THE CORONA Fig. 33.—Cross Section op the Sun. black speck about the size of a pinhead. Fig. 34 shows a viewof a sun spot made through a large telescope. Whenever the sun changes his spots magnetic storms takeplace on the Earth,…
Astronomy · Stars
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