A text-book of general astronomy : for colleges and scientific schools (1888)
Young, Charles A. (Charles Augustus), 1834-1908 · Boston ; London : Ginn & Company · leaf 197
and under different circumstances. They are probably lumi-nous clouds floating in a less luminous atmosphere. Near the edge the photosphere appears generally much less brill-iant; but certain bright streaks called faculre (from fax, atorch), which though visible are not very obvious at points… … Fig. Faculae at Edge of the Sun. (De La Rue.) When one of them passes off the edge of the sun, it is sometimesseen as a little projection. They are most abundant near the sun-spots, and they are more conspicuous near the edge of the disc, asshown in Fig. 96, because the suns surface is overlaid by…
Astronomy
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