Project icon: lavishly furnished initial letter with a painting of Ptolemy using an astrolab.

Ptolemaeus Arabus et Latinus

_ (the underscore) is the placeholder for exactly one character.
% (the percent sign) is the placeholder for no, one or more than one character.
%% (two percent signs) is the placeholder for no, one or more than one character, but not for blank space (so that a search ends at word boundaries).

At the beginning and at the end, these placeholders are superfluous.

Istanbul, Köprülü Kütüphanesi, Fazıl Ahmed Paşa 948

[Colour images of the body text, without cover.]

Collection of three works: Arabic. Date:

Dhū l-ḥijja 370/June 981.

Or.:

Baghdad; partially copied from Thābit ibn Qurra’s autograph by his great-grandson [Abū Isḥāq] Ibrahīm ibn Hilāl ibn Ibrāhīm ibn Zahrūn (Hārūn?) al-Ṣābī al-Ḥarrānī (d. 384/994) (pp. III, 89, 115).

Prov.:

A round waqf seal by the Grand Vizier Aḥmad Köprülü (in office 1661-1676) (pp. III (next to shelfmark ‘948’), 25, 56, 106, 115); a smaller octogonal seal reading innamā li-kull imraʾin mā nawā (pp. III, 2, 46, 84, 115); a damaged lobed rectangular seal (p. I); ownership statement by Musṭafā ibn ʿAlī (p. I); statement of endowment in honor of Aḥmad Pasha (p. I); three statements of ownership, the first by Muḥammad ibn Muḥammad ibn Muḥammad al-Ghazzī al-ʿĀmirī (d. 984/1576-7), the second by Ismaʿīl ibn al-Nābulsī (d. 993/1585), the third by a certain Waysī dated 1015/1606-7 (p. III); two further ownership statements by Abū l-Qāsim ibn Qayṣar ibn Abī l-Qāsim ibn ʿAbd al-Ghanī ibn Musāfir ibn Ḥusnān ibn ʿAbd al-Raḥmān al-Sulamī, date corrupted, and Muḥammad ibn ʿUmar ibn Aḥmad ibn Hibat Allāh ibn Abī Jarāh (possibly Jarādah), dated 649/1251-2 (p. III).

Cod.:

brown paper, III+115+IIa pp. (paginated with Hindu-Arabic numerals; foliated with both Hindu-Arabic and recent European-Arabic numerals; catchwords added by a later hand). A single naskh hand in black; decorative square titlepiece with the titles of all three treatises (p. III); partially dotted ductus, no hamzas or shaddas. Only few marginalia in a different hand (pp. 27-28). One table and two diagrams in black (pp. 87, 88, 115); abjad notation overlined in black. Codex in good condition except for minor moisture stains. Dimensions: 230×200 mm (Krause), 210×180 (Sesen and Izgi); 10-12 lines per page.

Cont.:

mathematics and astronomy. — Index: two poems by Abū Isḥāq al-Ṣābī (the copyist) and Ibn Muqla (p. I); Thābit ibn Qurra, Kitāb fī Ālāt al-sāʿāt allatī tusammā rukhāmāt (pp. 1-89); Ptolemaica (p. 91-107); Thābit ibn Qurra, Fī ʿAmal shakl mujassam dhī arbaʿ ʿashrat qāʾida tuḥīṭu bi-hi kura maʿlūma (pp. 108-115). Blank: pp. 82, 90.

Lit.:

E. Bessel-Hagen and O. Spies, ‘Ṯābit b. Qurra’s Abhandlung über einen halbregelmäßigen Vierzehnflächner’, Quellen und Studien zur Geschichte der Mathematik, Astronomie und Physik 2 (1933), pp. 186–198; Max Krause, ‘Stambuler Handschriften islamischer Mathematiker’, Quellen und Studien zur Geschichte der Mathematik, Astronomie und Physik, Abteilung B: Studien 3 (1936), pp. 437–532, here pp. 454-56; Ramazan Şeşen, Cevat İzgi and Cemil Akpınar, Fihris makhṭūṭāt Maktaba Kūprīlī, 3 vols, Istanbul: IRCICA, 1986, vol. I, pp. 481-82; Régis Morelon, Thābit ibn Qurra. Œuvres d’astronomie, Paris: Les Belles Lettres, 1987, pp. LXXX-LXXXI; fascsimile editions in Fuat Sezgin, Thābit Ibn Qurra ibn Zahrūn al-Ḥarrānī (d. 288/901). Three Treatises on Mathematics and Astronomy. Reproduced from MS Köprülü 948, Istanbul, Frankfurt am Main: Institut für Geschichte der Arabisch-Islamischen Wissenschaften, 2011, and Pouyan Rezvani, Si risāla az Thābit ibn Qurra (Sāʿat-hā-yi āftābī, Ḥarikat-i khurshīd wa māh, Chahārdah wajhī-yi muḥāt dar kura). Nuskha bargardān bi qatʿ-i aṣl-i nuskha-yi khaṭṭī-yi bi shumāra-yi 948, Kitābkhāna-yi Kūprūlū (Istānbūl), kitābat-i 370 H., Tehran: Miras-e Maktoob, 2014.

pp. 91‑107

\p. 91\ كلّ زمانين متساويين فإنّ كلّ واحد من النيّرين إنّما تستوي حركته الحقيقيّة فيهما على أحد أربعة أوجه فقط من سبعة أوجه سنصفها وإنّما تختلف على أحد الثلاثة الأوجه الباقية منها فقط. — \p. 106\ وهو مسير القمر المستوي في الطول في اليوم الواحد معلومًا.

= Thābit ibn Qurra, Risāla fī Ḥarakat al-nayyirayn (C.1.0880). — Title: Qawl fī Īḍāḥ al-wajh alladhī dhakara Baṭlamiyūs anna bi-hi stakhraja man taqaddama-hu masīrāt al-qamar al-dawriyya wa-hiya al-mustawiya, pp. 91, 107. — Undated scribal colophon with a note that this treatise was copied from a copy not in Thābit’s hand. Cross-references by the main hand in the margins. This is the first of the two different versions of this work as described by Morelon (p. LXXXII).