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 227
Fig. 223. Fig. 224. of this portion of the prominence at intervals of fifteenminutes. Other similar eruptions have been observed. V. THE CORONA. 202. General Appearance of the Corona. — At thetime of a total eclipse of the sun, if the sky is clear, themoon appears as a huge black ball, the…
Astronomy
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