Astronomy for the use of schools and academies (1882)
Gillet, J. A. (Joseph Anthony), 1837-1908, Rolfe, W. J. (William James), 1827-1910 · New York : Potter, Ainsworth, & Co. · leaf 114
to newmoon again, the phases occur in the reverse order. ASTRONOMY. 97 99. The For??i of the Mo oils Orbit.—The orbit of themoon around the earth is an ellipse of slight eccentricity.The form of this ellipse is shown in Fig. 113. C is thecentre of the ellipse, and E the position of the earth at… … of the moons orbit is inclined to the ecliptic by an angleof about five degrees. The two points where the moonsorbit cuts the ecliptic are called her nodes. The moonsnodes have a westward motion corresponding to that of theequinoxes, but much more rapid. They complete the cir-cuit of the ecliptic…
Astronomy
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