Turner, H. H. (Herbert Hall), 1861-1930 · London, E. Arnold · leaf 210
ll with ordinarytelescopes, except on the occasions when the sunis totally eclipsed. Roughly speaking, these out-lying portions of the sun consist of two kinds, thechromosphere and the corona, the former lookinglike an irregular close coating of the ordinary sun, Smoothed Sunspot Curve (Wolf)… … :858 T862 1866 1870 1874
Astronomy
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