A Table of artificial numbers; to be found at the back of "Raphael's" Ephemeris.
Take in hand, then, the Ephemeris for the year of your birth and read this chapter with it in view.
And now not only is it slightly off course, but so is every ephemeris printed on Mert.
Its position with respect to Saturn on any given date can be learned from the Ephemeris.
With an Ephemeris ...