Peck, William G. (William Guy), 1820-1892 · New York, Chicago, A. S. Barnes & company · leaf 165
0 ASTRONOMY. both in form and in magnitude, in consequence of whichthe actual appearance of the sun is not always the same atall points of its surface. These changes in the apparentcharacter of the photosphere are particularly noticeable inthe neighborhood of those dark patches yet to be… … Fig. 70. Sun Spot. Drawn by Prof. Langley. Explanation. This figure shows the mottled character of the suns surface,and also shows a curious group of sun-spots. The circle in the upper left-handcorner represents our earth on the same scale. Faculae. 126. Besides the shining cloud-tops that produce…
Astronomy
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