Elements of astronomy ... with explanatory notes, and questions for examination (1855)
Brocklesby, John, 1811-1889 · New York, Farmer, Brace & co. · leaf 171
des. The moon in mak-ing one revolution about the earth comes twice into theplane of the earths orbit. These two positions, when thecentre of the moon is at the same time in the plane ofthe ecliptic, and in that of her own orbit, are called themoons NODES.1 A line joining these two points, is… … LINE OF THE NODES. 314. The centre of the moon, at each revolution aboutthe earth, meets the ecliptic in a different place from thatin which it met it at the preceding revolution. Thus ifon the 15th day of June, the node was at A, Fig. 58, atthe end of the next revolution the centre of the…
Astronomy
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