The heavens above: a popular handbook of astronomy (1882)
Gillet, J. A. (Joseph Anthony), 1837-1908 · New York, Chicago, Potter, Ainsworth, & Co. · leaf 194
most violent wind known on the earth has a velocity ofa hundred miles an hour. ASTRONOMY. 175 III. THE PHOTOSPHERE AND SUN SPOTS. The PHOTOf?PHERE. 172. The Granulation of the Photosphere. — When thesurface of the sun is examined with a good telescope underfavorable atmospheric conditions, it is… … rig. 190.of minute grains of intense brilUancy and of irregular form,floating in a darker medium, and arranged in streaks andgroups, as shown in Fig. 190. With a rather low power,the general effect of the surface is much like that of roughdrawing-paper, or of curdled milk seen from a little…
Astronomy
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