Ru'aini al-Maliki Al-Khattab, Yahya bin Mohammed ar- (and other writers). Astronomical manuscript.

No place, [1688/89 CE =] 1100 H.

4to (150 x 210 mm). Arabic manuscript on smoothed paper. 77 ff. Black and occasional red ink, 19 lines, per extensum, frequent underlinings in red, with a full-page table and several carefully drawn astronomical diagrams in black and red ink. 18th century half calf with black cloth covers.

 9,500.00

An extensive Arabic astronomical manuscript in eight parts, comprising:

1. The "Risalat fi 'stikhragh al-layl wannahar min rub' ad-da'ira, al-musamma birub' al-mughaiyab" (A treatise on knowing the extraction of night and day actions from the quadrant, known as the answering quadrant) by the Meccan astronomer Yahya ar-Ru'aini Al-Khattab (902-995 H/1496-1587 CE).

2. Umar Ibn al-Jabali, "Sharah al-rub' al-mughaiyab" (Explanation of the respondent quadrant).

3. The third chapter of the book "Qashf al-Bayan" on determining the times of the call to prayer by use of the quadrant by the great Syrian astronomer 'Abu al-Hasan Ala'addin ibn Ibrahim, known as ibn Al-Shatir (d. 777 H/1375 CE), compiled by Hussein Al-Hasani Al-Khalkhali.

4. Letter in the respondent quadrant.

5. A discussion of the names of its various parts and segments of the astrolabe.

6. Instructions for the use of quadrants by Ibn Al-Shatir.

7. Commentary on chronology.

8. On the benefits of astronomy.

A good, well-preserved manuscript collection with extensive marginalia and several very precise astronomical diagrams.

GAL II, 393, no. 2.