Brocklesby, John, 1811-1889. [from old catalog] · New York, Sheldon and company · leaf 59
n any di- How does the astronomer determine the position of a star ? What is said respectingthe circles and lines employed by astronomers for this purpose ? What is meant by thicelestial sphere 1 The poles of the earth 1 Its axis 1 Terrestrial meridians. Explaii*rom figure CELESTIAL SPHERE, POLES,… … THE EARTH AND THE CELESTIAL SPHERE. the line NS is the axis of the earth. 1ST, the north pole,S, the south pole, and NES, N1S, N2S, N3S, are ter-restrial meridians. 61. The axis of the earth, extended in imagination What is meant by the axis of the celestial sphere 1 The poles of the heavens 1 48…
Astronomy
Internet Archive · Library of Congress · Public Domain Mark 1.0. Free to use for anything.
