Berry, Arthur,b. 1862 · London, J. Murray · leaf 94
re, slowly sliding backwards {i.e. from east to west),keeping a constant inclination to the ecliptic. The argument may be made clearer by figures. Infig. 21 let tm denote the ecliptic, tn the equator, s astar as seen by Timocharis, sm a great circle drawn per-pendicular to the ecliptic. Then s m is… … Fig. 22.—The movement of the equator. was slightly to the east of M. This change M m being nearly the same for all stars, it was simpler to attribute it to an equal motion in the opposite direction of the point r, say from r to r (fig. 22), i.e. by a motion of the equator from tn to tn, its…
Astronomy
Internet Archive · Medical Heritage Library · Public Domain Mark 1.0. Free to use for anything.
