Risālah mukhtaṣarah fī al-ʻamal bi-al-rubʻ min al-muqanṭarāt :
manuscript,
[15th century?].

رسالة مختصرة في العمل بالربع من المقنطرات : manuscript، [القرن 15م؟].

Description

Main Author

Khalīlī, Sharaf al-Dīn Mūsá ibn Muḥammad, approximately 1402.

Related Names

Meyerhof, Max, 1874-1945, former owner.

Language(s)

Arabic

Subjects

Astronomical instruments > Astronomical instruments / Early works to 1800.
Quadrants (Astronomical instruments) > Quadrants (Astronomical instruments) / Early works to 1800.
Almucantar > Almucantar / Early works to 1800.
Manuscripts, Arabic > Manuscripts, Arabic / Michigan > Manuscripts, Arabic / Michigan / Ann Arbor.

Summary

times of prayer.
"A treatise on the sine quadrant and almuqantar quadrant in three risālahs, the first two comprising 5 maqālahs and dealing with the two quadrants together and the third comprising 7 faṣls and dealing with the determination of the prayer-times and qibla with a sine quadrant." David A. King, A Survey of the Scientific Manuscripts in the Egyptian National Library (Winona Lake, 1986), p. 65. This copy contains the third risālah only, in 6 faṣls, about the use of the almucantar to find the qiblah and

Note

Title and text rubricated; marginal corrections in hand of copyist.
Pp. [1-20]. Pp. [21-24] contain an unidentified text.
Purchased in Cairo, 1933/34. Owner's mark: inside cover, manuscript notes in handwriting of Max Meyerhof.

Physical Description

1 v. ([24] p.) ; 19 cm

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