Howe, Herbert A. (Herbert Alonzo), 1858-1926 · Meadville, Penna., Flood and Vincent · leaf 202
f January, 1889.scope it yields two different spectra. There is a faintcontinuous spectrum, which may come from sunlight re-flected from the materials composing the corona, or maybe caused directly by white-hot solid or liquid particlesscattered through the corona. The other spectrum is… … The spectra. 196 A Study of the Sky. Filaments. stance which causes it. Other lines reveal the presenceof hydrogen and helium. Whence are these curious interlacing filaments of theinner corona, and the outstretched wings of the outer
Astronomy
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