The astronomical tables prepared in Toledo in the late 11th cent., used to calculate the positions of the sun and the planets in relation to fixed…

‘the astronomical tables composed by order of Alphonso X, king of Castile (1252–82), from their being adapted to the city of Toledo’ (Tyrwhitt in…

= computus, n. 2. Obsolete.

= computus, n.; esp. a calendar or computation of astronomical and ecclesiastical data.

Nautical. A navigational table showing the declination of celestial objects. Obsolete.

Designating the planetary tables Prutenicae tabulae coelestium motuum (1551) by Erasmus Reinhold (1511–53), a revised and expanded version of…

In plural. The Prutenic tables. Obsolete.

A figure or table on which the hours are marked. A table showing the length of the days and nights at different places and seasons. Obsolete.

A set of tables used in medieval times for calculating astronomical phenomena and the movable dates of the calendar; a calendar; (also) the system…

In plural. The astronomical tables prepared for Alfonso X by these scholars, regarded collectively (see sense B.). rare.

tables by which the position of the sun may be ascertained.