Maximum Benefit from the Knowledge of Circles of Projection on the 30 Degree Northern Latitude


This work, a treatise on practical astronomy, deals with such issues as timekeeping and determining the proper direction of prayer. The work begins with a brief introduction, but the bulk of the manuscript contains tables used to determine time. The introductory section contains illustrative examples on how to use the tables.

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Title in Original Language

غاية الأنتفاع في معرفة الدائر من الفلك من قبل الإرتفاع

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Physical Description

37 leaves; 18 x 26.5 centimeters

Last updated: September 29, 2014