pearl ring of bright points along the moon's edge during a total solar eclipse
After the English astronomer Francis Baily (Newbury, Berkshire 1774, London 1844).
Baily founded the Royal Astronomical Society in 1820 and became famous as a maker of star catalogs and as an editor of old catalogues. In 1836 he was the first to describe the short-lived phenomenon of the string of beads of luminous points that can be seen during a solar eclipse.
Sunlight breaks through the moon's deep valleys just before and just after the total eclipse.
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