Abstract
THE conclusion as to the increasing activity of the solar surface, drawn by the Astronomer-Royal of Scotland from his observations of a large solar spot on rhe 18th instant, is strongly confirmed by the present state of the south-east quarters of the sun's disk. Few prominences are now visible in the other portions of the limb, but on the 26th at 23° 10′ E. of the south point (direct image), the bright line C of the chromosphere extended to the height of 3′ 43″ from the limb, and this morning, the 28th, the greatest height was 1′ 17″ at 18° 46′ E. of S. On the 28th the remarkable prominences extended along the limb from—
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PERRY, S. Sun-Spots in Earnest. Nature 20, 625 (1879). https://doi.org/10.1038/020625c0
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DOI: https://doi.org/10.1038/020625c0
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