A high-school astronomy: in which the descriptive, physical, and practical are combined .. (1859)
Mattison, Hiram, 1811-1868 · New York, Mason brothers · leaf 23
A Hemisphere is the half of a sphere orglobe, or of the apparent concave of the heav-ens. In Geography we often read of the Eastern and Western, and North-ern and Southern hemispheres, but in Astronomy the term is only ap-plied to the Northern and Southern portions of the heavens. A Spheroid is a…
Astronomy
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