A high-school astronomy: in which the descriptive, physical, and practical are combined .. (1853)
Mattison, Hiram, 1811-1868 · New York, F. J. Huntingdon [etc.] · leaf 31
e same point: and we sec the same hemisphere of stars above thesensible horizon of any place that we should if the upper half of the earth were re-moved, and we stood on the rational horizon of that place. The Poles of the Horizon are two opposite points—one directly above, and the other directly… … *H~ »- 1. As the earth is a sphere, inhabited on all sides,the Zenith point is merely opposite its center^ and theNadir toicard its center. So with the directions Upand Dozen: one is from the center, and the othertoicard it; and the same direction which is up to one,is doicn to another. This fact…
Astronomy
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