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

Ptolemaeus Arabus et Latinus

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Berlin, Staatsbibliothek Preußischer Kulturbesitz, lat. fol. 610

s. XIIIex (after 1277, year mentioned f. 14ra, and also f. 250vb: ‘Explicit de utraque eclipse anno 1277 in die Dyonisii hora secunda’).

Or.:

northern (ascension tables for the latitude 50° f. 159v-160r; William of Saint-Cloud mentioned in a gloss f. 130r, alongside one master Alardus).

Parchment, 250 f., several contemporary neat hands, richly decorated initials, homogeneous decoration throughout.

Computus, arithmetic and astronomy: Pseudo-Robert Grosseteste, Kalendarium (1ra-7r); Tabula Gerlandi (7v-9r); Balduinus de Mardochio or Marrochio, Compotus manualis (9r-14v); Sacrobosco, Algorismus (15r-21r); Sacrobosco, De sphera (21r-33v); Sacrobosco, Computus (34r-56r); Robertus Anglicus, Quadrans vetus (56v-62r); Pseudo-Messahallah, De compositione astrolabii (63r-82r); Theorica planetarum Gerardi (82r-90r); Pseudo-Thebit Bencora, De motu octave spere (90r-93v); Ptolemaica (93v-97v); Thebit Bencora, De recta imaginatione spere et circulorum eius diversorum (97v-99r); Thebit Bencora (?), De quantitate stellarum et planetarum et proportione terre (99r-101r); Alfraganus, De scientia astrorum, tr. Gerard of Cremona (101r-129r); canons of Toledan tables (130ra-158va); tables: ‘Iste sunt tres tabule ad extrahendum annos Arabum ex annis Christi notis et e converso…’ (159r); ascension table for the latitude 50° (159v-160r); Toledan tables (161r-238r); tables: ‘Iste sunt tres tabule…’ (239r, as above 159r); ‘Canones eclipsium cum tabulis…’ (239ra-250vb). Blank: 62v, 129v, 160v, 238v.

Lit.

E. Zinner, ‘Aus alten Handschriften’, Naturforschende Gesellschaft Bamberg 38 (1962), 8-57: 12-14; M. Folkerts, ‘Mittelalterliche mathematische Handschriften in westlichen Sprachen in der Berliner Staatsbibliothek. Ein vorläufiges Verzeichnis’, in Mathematical Perspectives. Essays on Mathematics and Its Historical Development Presented to Kurt-Reinhard Biermann on the Occasion of His 60th Birthday, ed. J. W. Dauben, New York, 1981, 53-93: 66; F. S. Pedersen, The Toledan Tables. A Review of the Manuscripts and the Textual Versions with an Edition, København, 2002, I, 92-93.

93v‑97v

‘Incipit Thebit de hiis que indigent antequam legatur Almagesti. Equator est circulus maior qui describitur super 2 polos mundi ― aut propinqui oppositioni Solis erunt, erunt retrogradi.’