Increments and Corrections Tables

Definition

Because the almanac tabulates GHA only each hour, the increment for the elapsed minutes and seconds must be added. Separate columns handle the sun and planets, Aries, and the moon, since each moves at a different rate. Additional v and d corrections account for the small departure of planets and the moon from a uniform hourly rate and for the change of declination. A single wrong page here typically produces a position line displaced by a whole number of miles.