Proctor, Richard A. (Richard Anthony), 1837-1888 · New York, A.C. Armstrong and son · leaf 129
the space which looks dark all round the moon, thespace beyond which does not look dark, and the ringbetween the two spaces which looks bright. These areall equally illuminated by the moon, in the same sense,at least, that we say the surface of a moonlit sea is allequally illuminated, neglecting… … -Lunar Halo dark spaces, so the ring of light round the moon is nota real ring of light, bounded on one side by a less brightregion, and within by a dark space.Although my object in these essays is not specially to Il8 THE LUNAR HALO, deal with scientific matters, but rather with the thoughts(much…
Astronomy
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