Ephemeris

An ephemeris is a table giving the predicted positions of an object in space, like another planet, comet, or asteroid.

Ephemeris Media

Corpus Christ College MS 283 (1).png

A Latin translation of al-Khwārizmī's zīj, page from Corpus Christi College MS 283
Tablasalfonsies
Page from Almanach Perpetuum

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