Star-land : being talks with young people about the wonders of the heavens (1891)
Ball, Robert S. (Robert Stawell), Sir, 1840-1913 · London ; Paris : Cassell & Co. · leaf 50
er Langley. of intensely heated vapours. We might almost say thatthe spots are holes, by which we can look through thebrilliant surface to the interior and darker parts. Some-times the spots close up, and fresh ones will open else-where. Sometimes the whole surface is mottled over ina remarkable… … •v^v\:,;!lA:i::;;i -..■-; r<Rlijiine\rc- Fig. 15.—Nasmyths Drawing of the Willow-leaved Structure of the Sun. The spots often last long enough to demonstrate a re-markable fact. We must remember that the sun is a d -J 3^ Star-Land. great globe, and that it is poised freely in space. Thereis…
Astronomy
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