and
have the sense of turning back,[[51]] and the only stars whose apparent motion is ever retrograde are the planets.
All these stars are supposed as divinities to aid in the navigation of the Bark of Rā. The Egyptians could not have had a correct planetary theory (which only became possible through Kepler), but they understood at least that the motions of the planets were regular, and that they depended upon the Sun. Eudoxus is reported to have derived the data for his theory from his Egyptian instructors.
[4.] Instead of Rā the name of Sut is found in the later texts. Bekenrenef has
.