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The Globular Corona

Nature volume 140, page 577 (02 October 1937) | Download Citation



THE sensational and distorted press comments on the coronal photographs secured from the stratosphere at the total eclipse of the sun last June, to which reference was made in NATURE of August 21, p. 310, have now been followed by more reasoned statements about the photographs. They amount to this: the photographs show more clearly to the eye what the measurements of von Klü ber (Z. f. Astrophysik, 3, 159 ; 1931) and others have already proved, namely, that the successive isophotes of the corona round the sun are nearly circular. Graff, Bergstrand and Ludendorff were early workers in the same field of study and they have shown the differences in the behaviour during the solar cycle of this more regular corona and the superposed streamers. That some essential difference exists in the nature of the two main constituents of the corona was shown by the difference in the polarization between the inner corona and the streamers noted by Newall so long ago as 1905 and referred to again in a letter by K. G. Zakharin which appears in this issue of NATURE (p. 586).

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