an·a·lem·ma 
(ăn′ə-lĕmə)
(ăn′ə-lĕmə)n.
A graduated scale in the shape of a figure eight, indicating the sun's declination and the equation of time for every day of the year, often found on sundials and globes.
[Latin, sundial, from Greek analēmma, from analambanein, to take up; see ANALEPTIC.]