List, C, Hall, T. G. (Thomas Grainger), 1803-1881 · Philadelphia : Thomas Cowperthwait & Co. and Carey & Hart · leaf 82
ut only to the two points h and f, then a partialeclipse will take place to some persons near a andZ, but at the centre c, there will be a total eclipse.Should the shadow of the moon not reach theearth at all, then the moon will cross the suns diskand appear like a black spot upon it, and a ring… … 78 OUTLINES OF ASTRONOMY. Here t is the extremity of the shadow, notreaching the earth at a; join a m, a wi, producethese lines to h and f. Then that part of the suns disk which is be-tween h and f will be eclipsed, but a h, and f b,will be visible to a spectator at a, who will see arim of light of…
Astronomy
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