Abraham ibn ʿEzra (ca. 1089–ca. 1167)
26, 27, 189, 191–197, 203, 209, 213, 235, 250, 255, 271, 279–80, 292, 294–296, 301, 303, 313, 321, 690, 832, 846, 856, 866–7, 886, 888, 904; recensions of his astrological works 191–193; Hebrew and Latin texts 191–193; travels 191; Arabic sources 193–4; factors that alter the results of nativity horoscopes 195; horoscopes 196–7; other translations of Ibn ʿEzra’s works 197; Liber de rationibus tabularum 194–5, 642–3, 655, 661, 687, 689, 704, 821–2; on the use of the astrolabe 414–17; Luḥot 821–2; Tabulae Pisanae 687, 822; almanac 878, 880–902
Abraham bar Ḥiyya (ca. 1070–1145)
27, 153, 186, 189–191, 690, 831–2, 856, 866–71, 904; Yesodeh ha–tebunah u migdal ha-emunah 189–190; Sefer ha-ʿibbur 189; Ṣūrat ha-ʾareṣ 189, 567–8, 572–3, 704; Megillat ha-megalleh and astrological history 190, 304, 307–319; Sefer tiqqun ha-tequfot min ha-luhot ha-ʿeleh 190, 821; Sefer Heshbon mahalakhot ha-kokhavim 820; Luḥot ha-nasiʾ 820–1
Abraham Hebreo, scientific collaborator of Alfonso X (fl. 1264–77)
477, 555–6
Abraham Zacut
;
see Zacut
Abū ʿAbd Allāh al-Muʾaddib (?, before 1400)
75
Abū ʿAlī al-Ḥasan al-Marrākushī
:
see Abū l-Ḥasan ʿAlī al-Marrākushī:
Abū Bakr al-Munajjim al-Khulānī (fl. ca. 1050–1090)
163
Libro conplido en los iudizios de las estrellas
198, 228–254; horoscope of the translation 198–200, 832, 856.
Libro de las cruzes
556;
see crosses
.
Libro del saber de astrología
325, 556, 709, 827: Libro de la açafeha 262, 450, 556–7; Libro de la alcora or de la fayçon dell espera 262, 281, 330–341; Libro de las armellas 269, 281, 285, 287, 353, 368–72; Libro del astrolabio llano 137, 262, 271, 421, 432–440, 444–5, 851, 856, 879; Libro del astrolabio redondo 269, 271, 341–352, 377, 444–5; Libro del ataçyr 269, 290; Libro de las estrellas fixas/ IV Libros de la ochava espera 555, 563–4, 647, 854; Libro de la lámina universal 262, 443–450; Libro primero de las láminas de los siete planetas 476–9; Libro segundo de las láminas de los siete planetas 479–487; Libro del quadrante para rectificar 444–5, 851, 879; Libro del relogio del agua 125–126, 348, 444–5; Libro del relogio del argent vivo 125–126, 555; Libro del relogio de las candelas 122; Libro del relogio de la piedra de la sombra 114–5, 629, 837–9, 856.
Libro del quadrante sennero
474–5, 857
Translation of al-Battānī’s canons
684, 856–7
Translation of Ibn al-Haytham’s Fī hayʾat al-ʿālam
553–567; Alfonso X was not very interested in cosmology 554–5; a restructured translation 556–60; references to other Alfonsine works 560–61; terminology 561–4; figura pinee/pineata/pineatum 562–4; wrong position of the equant point in the model for the superior planets 565; other errors 566–7.
Partidas
843–4
Setenario
555
Alfonso XI of Castile (1312–1350)
13, 179, 206
Alfonso de Córdoba (1458–ca. 1502)
42; Lumen coeli 42; Tabule astronomice Elisabeth Regine 42, 867, 869–70, 873
Alfonso Dinis (ca. 1300–1350)
38, 206, 208
ʿAlī ibn Abī ʿAlī al-Qusanṭīnī, Abū l-Ḥasan (fl. 1359–61)
12, 13, 56, 173, 619, 623, 624–6, 642, 660, 675, 714–720, 903; computation of planetary longitudes 716; influence of Ibn al-Zarqālluh and the school of Ibn Isḥāq 717
ʿAlī b. Aḥmad al-ʿImrānī (d. 955) Kitāb al-ikhtiyārāt
180, 186
ʿAlī b. Aḥmad al-Ṣanhājī al-Tilimsānī ibn al-Faḥḥām, Abū l-Ḥasan (fl. 1357)
18, 122–3, 127–8
ʿAlī b. Khalaf, Abū l-Ḥasan b. Aḥmar al-Ṣaydalānī/al-Shajjār (11th c.): universal plate
262, 285, 440–1, 443–450, 465, 466, 468; meridian stereographic projection 441–3; relative chronology of the three universal astrolabes 460–2
ʿAlī b. Muḥammad b. ʿAbd Allāh b. Faraj (fl. 1608)
402
ʿAlī b. Muḥammad al-Azdī (fl. 1544)
402
ʿAlī ibn Mūsā al-Lakhmī al-Qarabaqī (d.1440)
45
ʿAlī ibn Riḍwān (998–1061)
208, 322
ʿAlī b. Shadhān b. Mūsā b. ʿAbd Allāh al-Ḥasanī (fl. 1317)
767
ʿAlī b. Sulaymān al-Zahrāwī al-Ḥāsib (fl. end of 10th c.), Risāla fī maʿrifat saʿat al-mashriq
45
ʿAlī b. Yūsuf b. Tashfīn Almoravid caliph (1106–1143)
8, 143
ʿArīb b. Saʿīd (d. 980)
3, 50, 294–5, 437, 506, 684, 685
Aristotle (385–323 BCE), Physics
526; Metaphysics, De caelo 530, 541
al-Arkand
23, 220, 683
Armāniyūs
880
Armillary ring (ḥalqa)
324–5
Armillary sphere
174, 324, 352–372, 828
Arrival of Eastern sources to al-Andalus
21–23, 25–31, 42–43
Ascalu Hismaelita
119
Ascelin of Augsburg (fl. beginning of the 11th c.)
382–3, 392, 398
Ascensional difference
:
see Timekeeping
al-Asfī al-Andalusī (fl. 1701)
148
aṣḥāb al-Mumtaḥan
823
al-Ashrafī zīj
686
Aṣnāk
:
see ʿAbd Allāh Aṣnāk al-Marrākushī
Astrolabe
18, 100; standard astrolabe 373–440; dhāt al-ṣafāʾiḥ 354; munbaṭaḥ/mubaṭṭaḥ 354, 373; ḥūtī 354, 373; zodiacal-calendar scale 373–4; Maslama and stereographic projection 374, 376; Ibn al-Ṣaffār and Ibn al-Samḥ’treatises on the intrument 376–8; introduction in Catalonia (10th c.) 378–392; the “old corpus” of texts on the astrolabe and other instruments 378–9; Catalan origin of the collection 380–1; sources 381–7; is the “old corpus” the result of translations? 387–392; Carolingian astrolabe 18, 392–397; European diffusion of the “old corpus” 397–399; astrolabe makers in al-Andalus and the Maghrib 399–402, 411–12; treatises on the use of the astrolabe in al-Andalus and the Maghrib 402–410; astrolabes made in the Christian kingdoms of the Iberian Peninsula 410–13; Latin texts on the construction and use of the astrolabe 413–431; Alfonsine books on the construction and use of the instrument 432–440; linear astrolabe 471.
see universal astrolabes
Astrolabii sententiae
18, 118
Astrological geography
247–9
Astrological history
153
Astrological months
190, 241, 760–1
Astrology between 950 and 103
1158–160
Astromagical compilation in Catalan (end of the 14th c.)
205–6
al-ʿAṭṭār, author of a zīj (?)
816
Autolycus of Pitane (fl. ca. 300 BCE)
330
Avendauth
:
see Abraham ibn Dāwūd
Awmātiyūs
880
Azarquiel
:
see Ibn al-Zarqālluh
al-ʿAzīz, Fāṭimid caliph (975–996)
5
Bādīs b. al-Manṣūr Zīrid king in Qayrawān (r. 996–1016)
169, 227
Celestial globe: De horologio secundum alcoram
326–7; celestial spheres in the Iberian Peninsula 328–30; Qusṭā b. Lūqā and Alfonso X on the celestial sphere 330–341; astrological uses of the celestial sphere 336–7
Centre of the world (Qubbat al-arḍ)
247–8, 305, 314
Charles V, king of France (1364–80)
858
Chaucer, Geoffrey (1340?–1400)
720–21
Clepsydras: ʿAbbās ibn Firnās
124; Gerbert of Aurillac 124; ms. Ripoll 124; Ibn Khalaf al-Murādī 124–125; al-Zarqāl 125; Libro del relogio del agua 125–126; Libro del relogio del argent vivo 125–126; Pedro IV of Aragón 126–127; Qarawiyyīn Mosque of Fez 17–18, 127, 143; of the madrasa Bū ʿInāniyya in Fez 18, 127–128.
Comets
206, 207
Conjunctions
:
see planetary conjunctions
Constantin, dean of Fleury (988–996) and abbot of Micy (1011–1021)
398
Copernicus (1473–1543)
510, 544, 655
Córdoba Royal Library
7
Cresques Abraham (fl. 1375), Catalan Atlas
121, 411, 883
Cresques Vivier of Avignon (d. 1391)
201
Crosses, astrological system for simple predictions
15, 20, 35, 156, 161, 198, 214–219, 223
El Salado, battle (1340)
13; horoscopes of the battle 173–179, 796–7
Enrique IV of Castile (1454–1474)
210
Enrique de Villena (ca. 1384–1434)
330; Tratado de astrología 39, 40, 71, 208, 549, 553, 572–75, 830. Distances and sizes of the planetary spheres 573–5
Enoch
194
Ephemerides
876–7, 878–80
Epistles of the Brethren of Purity (Rasāʾil Ikhwān al-Ṣafāʾ)
497
Equation of time
603, 622, 761–3, 766, 793–5
Equatoria
3, 42, 153, 458, 475–492
Eras
52–55, 710, 754, 843–4
Eudoxus of Knidos (390–337 BC)
532, 576
Faḥṣ Ṭarīf
:
see El Salado
Fardariyya/Fardār/Ifrādiyya
240–1, 300–1, 321
al-Farghānī (d. 861)
546, 549, 552, 568, 570, 690, 821–3
Fāṭimids in the Maghrib (910–972)
5
al-Fazārī (second half of the 8th c.)
437, 506, 683, 691, 850
Fernando de Fontiveros (fl. 1476–ca. 1480)
40
Fernando Gallego (1440–1507)
209
Ferrand Martínez (fl. 1391)
38, 885
Fishtālī, Abū l-Rabīʿ Sulaymān b. Aḥmad (d. 1794)
468, 900
Fiṭna, period of civil war after the fall of the Cordoban Caliphate
161
Flood
54
Franco of Poland (end of the 13th c.)
495
Frederick II of Sicily (r. 1220–1250)
521
Fulbert, Bishop of Chartres (1006–28)
398–9
Gedalia b. Shlomo b. Yaḥyā (fl. 1428–ca. 1480)
212
Ibn al-Khayyāṭ, Yaḥyā b. Aḥmad (977–1055) Lāmiyya
15, 164–166; Risāla fī l-qirānāt al-nujūmiyya 164
Ibn Lubbūn, Abū ʿĪsā
328
Ibn Marāna al-Sabtī (fl. 1069)
7
Ibn Marzūq (d. 1379)
13
Ibn Masʿūd b. Farmīja (fl. 1372–1394)
815; Ḥuṣūl al-maqāṣid wa l-āmāl min al-ṭuruq wa l-fawāʾid allatī tuʿlamu minhā mudad al-wulāt wa l-ʿummāl 14, 174; Risāla kāfiyat al-sayb fī l ʿamal bi l-jayb 105–106, 473
Ibn al-Mashshāṭ al-Asṭurlābī, Muḥammad b. Saʿīd al-Saraqusṭī (11th c.)
404
Ibn Masrūr
690
Ibn al-Muʿādh
:
see Khalaf ibn al-Muʿādh
Ibn Muʿādh al-Jayyānī, Abū ʿAbd Allāh Muḥammad b, Ibrāhīm b. Muḥammad al-Shaʿbānī (d. 1093)
4, 8, 118, 611, 735
Liber de crepusculis
835; height of the atmosphere 755
Ṣafīḥas zarqāliyya and shakkāziyya
104, 136, 268, 281, 285, 286, 287, 324–5, 344, 440–1, 444, 450–66, 468, 556; maʾmūniyya 451, 460; ʿabbādiyya 460; meridian stereographic projection 441–3; meridian orthographic projection 452, 456–459; sine quadrant 452, 470–1; circle of the Moon and the computation of the geocentric lunar distance 453, 459–60; transversal ruler 455–6, 459; relative chronology of the three universal astrolabes 460–2; transmission of the ṣafīḥas to the Mashriq and the Maghrib 462–466, 682; armillary sphere 353, 368–372;
al-Ṣafīḥa al-zījiyya (equatorium)
479–487: identification of Mercury’s deferent with an ellipse 483–5, 563;
On the solar year
521, 578, 654–667, 772, 825, 828: motion of the solar and planetary apogees 578, 657–661, 733, 776–7, 833, 848, 874; three kinds of solar year (tropical, sidereal and anomalistic) 661–2, 846; solar model with variable eccentricity 662–667, 672, 674, 737, 739, 747, 778, 833, 850–1
On the motion of the fixed stars
329, 521, 524, 534, 568, 578, 583, 585, 586–610, 612, 614, 615, 617, 618, 622, 623, 639, 642–4, 749, 762, 857; cyclical variation of the obliquity of the ecliptic 603–7, 627, 641, 762, 832, 837
Invalidity of Ptolemy’s method to determine Mercury’s apogee
578;
Modified lunar model
578–9, 676–681, 811, 833–4
see Toledan Tables
Ibn al-Zarqiyāl
:
see Ibn al-Zarqālluh
Ibn Zurayq al-Khayrī/Jīzī, Muḥammad b. ʿAlī b. Ibrāhīm (d. 1400)
816
al-Zayyāt, Isḥāq b. al-Ḥasan b. Abī l-Ḥusayn (fl. 975–1025)
709
Ibrāhīm II, Aghlabī amīr in Tunis (875–902)
5, 153–4
Ibrāhīm b. ʿAbd al-Karīm (fl. 1066)
400
Ibrāhīm b. ʿAlī al-Andalusī al-Marrākushī (fl. 1727)
344
Ibrāhīm b. Muḥammad al-Balawī (fl. 1686)
469
Ibrāhīm b. Muḥammad b. Futūḥ/Fattūḥ al-ʿUqaylī al-Gharnāṭī (d. 1464)
403
Jābir ibn Aflaḥ (first half of the 12th c.): chronology and works
508; Iṣlāḥ al-Majisṭī 8, 26, 475, 499, 509–16, 521, 524, 527, 536, 762; observational instrument 492–5; title and recensions 509; aim of the Iṣlāḥ 510; criticism of the Almagest 511–15; planetary order 514–15, 531
al-Kindī (d. ca. 873)
185, 194, 232–3, 249, 321, 356–7, 363
Kūshyār b. Labbān (ca. 970–1030)
321–2
kylisis
530
Latin astrological tradition
2, 15, 154
Levi ben Gerson (1288–1344)
476, 532, 544, 553, 869–70, 875, 888, 891, 904
Liber de motu octave spere
578–586, 587, 612, 617, 618, 621, 626, 627, 642–4, 648, 729, 882, 884
Libraries in al-Andalus
21, 23–30, 43; Royal library in Córdoba 23–25, 28, 44, 159; Library of King al-Muʾtaman in Zaragoza 25–27, 193; Libraries in Toledo 27–30
Lot (sahm, pl. sihām)
321
Lunar cycle in perpetual almanacs
38, 41, 805–7, 883
Martín Gil, abbot of Santa María de Moreruela (fl. 1260–67)
545
Marwān b. Ghazwān (9th c.)
154–5, 158
Māshāʾallāh (d. ca. 815)
184, 194, 202, 209, 221, 241, 312–3, 318, 779, 850; pseudo-Māshāʾallāh on the construction and use of the astrolabe 288, 413, 417–436; influence of Maslama 417–8, 421–8, 431, 433
Maslama b. Aḥmad al-Majrīṭī (d. 1007–8)
2, 19, 27, 29, 53, 159, 161, 164, 258, 260, 288, 290, 413, 417, 496, 503, 544, 591, 684, 903; on stereographic projection 374, 376, 429; revision of al-Khwārizmī’s zīj 683, 688–708; star table and its influence on the “old corpus” 382–7, 425–6, 451, 504, 588, 608–10; influence on pseudo-Māshāʾallāh treatises on the astrolabe 417–8, 421–428, 431, 433; precession 504
Maslama b. al-Qāsim al-Qurṭubī, Abū l-Qāsim (d. 964), Ghāyat al-ḥakīm/ Picatrix
158, 205, 497, 579
Old Catalan corpus of texts on the astrolabe and other astronomical instruments
:
see astrolabe
Opening of the door (fatḥ al-bāb)
249–50, 321
Oliva, abbot of Ripoll (1008–46)
398
Ortiz de Zúñiga (fl. 1677)
827
Patronage of translations
32–38, 43
Pedro IV, king of Aragón (1336–1387)
37–38, 126–127, 200, 329, 410–11, 642, 649; astrologers 201; Almanac (Ephemerides for 1361–1433) 202, 859–860, 879–80; Tables of Barcelona 858–867, 880; star tables 859–60; trepidation 649, 859; solar apogee 658
Pedro, Prince of Portugal (1392–1449)
213
Pedro González Pérez (d. 1267) see Petrus Gallecus
Pere Gilbert
:
see Petrus Gileberth
Pero Fernández (14th c.)
38, 207
Peter the Venerable, abbot of Cluny (d. 1156)
32
Petrus Alfonsi (ca. 1062–after 1110)
27, 53, 189, 688, 690
Petrus Gallecus, bishop of Cartagena (1250–1267) Summa de astronomia
40, 545–553, 567, 575; sources: Ibn Rushd and al-Biṭrūjī 546–7; distances and sizes of the celestial bodies 547–552
Petrus Gileberth (d. 1362)
37, 201, 329, 649, 859, 879
Petrus Raimundus
411
Petrus de Reggio
199, 857–8
Peuerbach, Georg (1423–1461)
485
Picatrix
:
seeGhāyat al-ḥakīm
Planetary conjunctions
9, 15, 157, 214, 300, 307–319, 320; Saturn and Jupiter in 571 162, 245, 304–6, 317–9, 322, 890; in 610 323; in 809 162; in 848 246; in 1007 160, 162; in 1067 161, 310; in 1107 518; in 1226 314–317 in 1305 175, in 1345 176, 310, 797; in 1484 111; Saturn and Mars in 1033 166; in 1108 518–9; in 1228 320; five planets in Libra (1186) 169–171
Prediction of the end of the Cordoba Caliphate
156
Precession 0°
581–2, 600–1, 748–9, 872, 874, 894
Precession and trepidation
29, 504–5, 546, 570, 579–654, 713–14, 812; decline and fall of trepidation in the Maghrib 636–641; id. in the Iberian Peninsula 872–874, 889
Profeit Tibbon
:
see Jacob b. Makhir b. Tibbon
Profiat Duran (d. 1415)
570
Projection of rays
15, 283; direct method on the ecliptic 283–5; right ascension method 286; oblique ascension method 286–7; single position semicircle method 287; single hour line method 287–9, 813; four position circles method 289–91; seven hour lines method 291
Qāsim b. Muṭarrif al-Qaṭṭān (fl. ca. 950)
5, 6, 73, 78, 85, 116, 121, 498, 502–6, 575; stars 504; precession of the equinoxes 504–5; names of planets and zodiacal signs 505
qaṭʿ, astrological cut or interruption in the sequence of events
159
qāṭiʿ pl. qawāṭiʿ
238, 276
Qayrawān, mosque of Sīdī ʿUqba
113, 128–130
Qibla
16, 45, 128–151, 352, 410, 439
Qayrawān, Mosque of Sīdī ʿUqba
128–130; Zaragoza 130–131; Córdoba 130–135, 408–10; mosques in Granada 144, 410
Qibla indicators
147–151: rising point of Suhayl 130, 131, 134, 142–143, 149–150; rising point of Qalb al-ʿAqrab 148; rising Sun in the winter solstice 129–130, 147–148; rising Sun in the summer solstice 131; rising Sun in the equinoxes 148–149; midpoint of the South-Eastern quadrant of the horizon 150; South 150; rising point of other stars 151
Legal criteria: taqlīd, ijtihād, jiha, samt
144–147
Orientation of mosques following the street-plan
129, 131; orientation in parallel to the Kaʿba 131, 132
Astronomical solutions of the qibla problem
135–139; method of the zījes 137–139, 473, 709–10
Astronomers and the orientation of mosques
139–144; Madīnat al-Zahrāʾ 139–140
Ramon Llull: (ca. 1232 – 1316)
20, 36–37, Tractatus novus de astronomia/ De nova astronomia 20, 37, 200, 223–227; Liber principiorum medicine 120–121; De nova geometria 120–121
raqīb
49
Raymond Bancal (fl. 1326)
207, 883
Raymond of La Sauvetat, archbishop of Toledo (1125–1152)
32
Raymundus Bancalis
:
see Raymond Bancal
Raymundus Lullius
:
see Ramon Llull
al-Rāzī, Abū Zakariyāʾ (d. 925)
194
Recemundus
:
see Rabīʿ b. Zayd
Regiomontanus (1436–1476)
510, 544, 655, 893
Reinhold, Erasmus (1511–43)
485
Revolution of the months (taḥwīl al-shuhūr)
241
Revolution of the years (taḥwīl al-sinīn)
243–7
al-Riqūṭī al-Mursī, Muḥammad b. Aḥmad (fl. 1266)
827–8
Risālat al-hayʾa by an anonymous Toledan astronomer of the 11th c.
370
Risāla fī awqāt al-sana
50, 75
Robert of Chester (fl. 1140)
824
Robert Grosseteste (ca. 1175–1253)
543
Robert of Ketton (fl. 1141–1157)
27, 32, 18, 185, 721
Robert Losinga, bishop of Hereford (12th c.)
689–90
Rodrigo of Vasurto (fl. 1487–1504)
40, 210
Roger Bacon (ca. 1214–ca. 1292)
543
Roger of Howden (end 12th c.)
170
Roger of Wendover (13th c.)
170
al-Rudānī. Muḥammad b. Muḥammad b. Sulaymān (1627–83), al-Nāqiʿa ʿala al-ālat al-jāmiʿa
343–4, 346, 351
Sun: Ibn al-Zarqālluh’s book on the solar year
654–667; solar and planetary apogees 507, 629–634, 657–661, 733; Ibn al-Zarqālluh’s solar model with variable eccentricity 661–667, 737, 739; sunspots 514, 518, 521; in al-Khwārizmī’s zīj 691–2
Sundials
17, 18, 109–119, 324; sundial tables 115; cylindrical dials 115, 324; conical dials (mukḥula) 115, 324; balāṭa 115–119; monumental sundial in the Alfonsine Libro del relogio del Palacio de las horas 119;
see Ibn al-Raqqām
Tables of Barcelona
38, 201, 202–3, 261, 615, 636, 642, 686, 804, 812, 858–867, 891; trepidation 649–50, 749, 859, 866, 880; solar apogee 658, 660; star tables 859–60; combination of mean motions and equations 861, 866; tropical or sidereal tables? 861, 863, 866; revolutio anni 863–4
Tabulae resolutae
:
see Nicholaus Polonius
al-Tājūrī (d. 1582), Tanbīh al-ghāfilīn ʿan qiblat al-ṣaḥāba wa l-tābiʿīn
145, 146
Taqwīm
340, 876–7, 878–80
Taʾsīs
250, 321
Tasyīr
15, 179, 237, 274–283; ascensions, right, oblique and mixed 238–9, 279; astrological cycles 274–276; direct method on the ecliptic 276–9; on the equator: hour line method 279–281, 346; position semicircle method 281–2; distance method 282–3
al-Tawzarī, ʿUmar b. ʿAbd al-Raḥmān (m. 1454)
106, 473
Thābit b. Qurra (d. 901)
330, 363, 457, 579, 585, 587, 588, 589, 590, 591, 608–10, 662, 673, 687, 823–4
Theodosius of Tripoli (first c. CE)
330
Theon of Alexandria (ca. 335–405)
524, 529–30, 642, 644, 727
Thietmar of Magdeburg (d. 1018)
120
Thomas Aquinas (ca. 1225–1274)
543
Thomas of Bologna (fl. 1385–88)
201
Thurayyā
121–122
al-Ṭibb al-Qashṭālī al-Malūkī
39, 570–1
Tiberius, Roman Emperor (r. 14–37)
648
Ṭībughā/Ṭaybugha, ʿAlāʾ al-Dīn (m. 1394)
465
Tilimsān/ Tlemcen: mosques of Sīdī Ḥalwī and al-Manṣūra
113
Timekeeping
3, 9, 15, 16, 17, 44–128, 406, 504, 506; ascensional difference 94–95, 698–700, 740, 811, 890; astrolabe 100; crescent visibility 55–70, 702, 709–10, 715, 769–70, 836, 902, 904–5; daylight tables 96–99, 726–27, 885; folk-astronomy 73–93; hour 95–96; instruments for telling the time 100–128: quadrans novus 106, quadrans vetus 107–108, quadrans vetustissimus 100–103, sexagenarium 105, 471–2, sine quadrant 104–6, 452, 472–4; lunar mansions for telling the time during the night 85–93; prayer tables 17; prayer times 71–73, 113–114: ẓuhr & ʿaṣr prayers 79–82; fajr & maghrib prayers 83–93, 835; shadow schemes 73; tables for timekeeping in the Maghrib: 71; zījes 93–99.,
see sundials, nocturnal, candle clocks, clepsydras
Yaʿqov ben Abī Abraham Yizḥāq al-Corsuno
:
see Jacob Corsuno
Yaʿqūb al-Manṣūr, Almohad Caliph (1184–1199)
8
Yaʿqub b. Ṭāriq (second half of the 8th c.)
247, 683, 750
Yehudah b. Mosheh/ Yehuda fi de Mose fi de Mosca (13th c.)
36, 38, 198, 331, 828, 856, 888
Yehudah b. Salomon ha-Kohen (fl. 1247)
544
Yiḥaq ibn Barukh ibn al-Baliyya (1034–1093)
163
Yomṭob
:
see Bonjorn
Yosef b. Isḥāq b. Mosheh b. Waqār (fl. 1357–1396), Sefer Luḥot
39, 804, 839, 867–8, 871, 874, 884
Yosef ha-Parsi (fl. 1439–1444): equatorium
492
Yūnus al-Barghawāṭī (r. 842–884)
6
Yūsuf I of Granada (1333–1354)
13, 179
Yūsuf Ḥallāj (15th c.)
463–4
Yūsuf b. Tashfīn (d. 1106–7), leader of the Almoravids
7, 166
Yūsuf ibnʿUmar ibn Abī Thalla (d. 1043)
163
Zacut, Abraham (1452–1515)
212, 867–9, 870–73, 904–5; observations 872–3; ha-Ḥibbur ha- gadol 38, 40, 210, 213, 647, 883, 887–92; precession 650–54, 873; motion of the apogees 889–90; meridian of water 891; Almanach perpetuum 38, 41, 42, 55, 213, 261, 293, 295–6, 890–1, 892–4; star tables 894; Arabic versions of the Almanach Perpetuum 894–902; other tables 869–71; Tratado breve en las ynfluencias del cielo 213–4
Zaradusht
237, 252, 283
al-Zarqāl, Abū l-Qāsim b. ʿAbd al-Raḥmān
125, 578
al-Zarqālī
:
see Ibn al-Zarqālluh
Zaydān al-Manṣūr (d. 1627), sultan of Morocco
896
al-Zayyāt, Isḥāq b. al-Ḥasan b. Abī l-Ḥusayn (fl. 975–1025)
709
al-Zīj
23, 683
Zīj al-Shāh
696, 779, 850
Zīrid dinasty in the Maghrib (972–1152)
6
Ziryāb
155
Ziyād ibn ʿAbd Allāh al-Anṣārī (d. 1085)
45
Ziyādat Allāh b. Ibrāhīm, emir of Ifrīqiyā (fl. 836)
129