Astronomy for the use of schools and academies (1882)
Gillet, J. A. (Joseph Anthony), 1837-1908, Rolfe, W. J. (William James), 1827-1910 · New York : 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 Photosphere. 172. The Granulation of the Photosphere. — When thesurface of the sun is examined with a good telescope underfavorable atmospheric conditions, it is… … Fig. 190. of minute grains of intense brilliancy and of irregular form,Moating 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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