History of the planetary systems from Thales to Kepler (1906)
Dreyer, J. L. E. (John Louis Emil), 1852-1926 · Cambridge University Press · leaf 352
tion would produce no latitude,but the second one, which takes place round an axis atright angles to the line of apsides, produces the greatestdeviation. But if Venus at that moment had been 90° fromthe apsides, then the axis of this libration would pass throughthe mean sun, and Venus would add to… … xm] Copernicus 341 the former, fg being the line of nodes. When both the earthand the planet are in the line ac the planet has no latitude,but it will have some if in either of the two semicircles gkfor fig, and this latitude is called obliquation or reflexion.But when the earth is at b or d these…
Astronomy -- History · Solar system
Internet Archive · Gerstein Library, University of Toronto · Public Domain Mark 1.0. Free to use for anything.
