Lowell, Percival, 1855-1916 · New York, The Macmillan company · leaf 122
d out theoretically by Lagrangelong before its corroboration in fact was so much asdreamt. Achilles, Patroclus, and Hector, as the triadare called, so move as always to keep their angulardistance from Jupiter unaltered in their similar circuitsof the Sun. Before considering these bodies… … Orbits of the Outer Planets. cal and an historical point of view. For, in fact, it iswhat led to their discovery. Titius of Wittenburg,about the middle of the eighteenth century, noticed acurious relation between the distances from the Sun ofthe then known planets. It consisted in a sort of…
Cosmogony
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