Grimthorpe, Edmund Beckett, Baron, 1816-1905 · New York : G.P. Putnam · leaf 158
re. By these two causes the advance of the apses is made twice as great as it would be without them. In the same way the apses of the earth's orbit are carried round by the attraction of the planets, the greatest weight of them by far being outside the earth's orbit; but in 110,880 years instead of… … the orbit, or of syzygy and quadrature with respect to perigee and apogee: other
Astronomy
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