Peck, William G. (William Guy), 1820-1892 · New York, Chicago, A. S. Barnes & company · leaf 61
cle of per-petual occultation. All bodies north of the circle of perpetual apparition arealways above the horizon, and all bodies south of the circleof perpetual occultation are always below the horizon, thatis, they are perpetually invisible. If a bodys declination is less than the latitude of… … Fig. 24. The Oblique Sphere. Explanation. The figure representsthe projection of the oblique sphere onthe plane of the solstitial colure, theequinoxes being in the horizon ; PP isthe axis of the heavens ; Z is the zenithof the place (supposed to be in north lati-tude) ; HH is the projection of the…
Astronomy
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