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 51
•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… … Fig. 16.—Spot nearing the Suns Edge. prove by observing such spots as those shown in Fig. 16.I can best illustrate what I want by Fig. 17, which showssix imaginary pictures. The first represents the sun on the1st day of the month ; the next shows it five days later, onthe Gtli; another view is five…
Astronomy
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