Star-land; being talks with young people about the wonders of the heavens (1899)
Ball, Robert Stawell, Sir, 1840- [from old catalog] · Boston and London, Ginn & company · leaf 49
arkable way. I give here a picture whichwas taken from Mr. Nasmyths beautiful drawing, inwhich he shows how the sun sometimes assumes the 36 STAR-LAND. appearance which has been likened to willow leaves(Fig. 15). This appearance was very noticeable in thegreat spot of September, 1898. The spots… … Fig. 14. — A Sun-spot {after Janssen). it from turning round. That it does turn round, wecan prove by careful observation of the spots. I canbest illustrate what I want by Fig. 17, which shows siximaginary pictures. The first represents the sun on the1st day of the month; the next shows it five…
Astronomy
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