zij

Definitions

An Islamic book that tabulates parameters used for various astronomical events and movements.

Equivalents

Examples

“Zijes are comprised of a set⟳ of canons and a set⟳ of tables. These tables can be grouped as follows: calendar conversions; mean⟳ motions; solar, lunar, and planetary equations; trigonometry and spherical astronomy; planetary latitudes, visibilities, and retrogradations; lunar visibility; precession or trepidation; solar and lunar eclipses; astrological tables; geographical coordinates; and star lists. Some zijes may not have⟳ had all these items, and others may have⟳ had [more]. In particular, planetary velocity tables appear⟳ in only [those] that derive from the Iberian Peninsula and the Maghrib.”

CEFR level