Computation of solar, lunar and planetary positions for two dates in 1299 CE (midnight between the 14th and 15th of June and 6 pm on June 29th), with some Coptic numerals.Condition: torn, holesLayout: various lines in 3 columns + marginalia
A fragment of a calendar for the year 5571 of Creation (= 1810-1811 CE). In the Hebrew part of each entry astronomical and astrological details on the month are given and dates of holidays and special Šabbats are given. In the following Judaeo-Arabic part of each entry the relationship between the length of day and night during the particular month and the name of the corresponding month of the Muslim year are given.Condition: torn, stainedLayout: various lines (recto: verso is blank)
Contents: 1. fol. 1b-12a: Persian treatise on the quadrant. Begins with faṣl dar alqāb-i khuṭūṭ-i rubʻ; dated 1096 H.Contents: 2. fol. 13b-31a: Risālat Kashf al-rayb fī al-ʻamal bi-al-jayb.Contents: 3. fol. 32b-40a: Risālah fī al-rubʻ al-mujayyab.Contents: 4. fol. 40b-51a: Mukhtaṣar dar maʻrifat-i asṭurlāb. A Persian treatise on the astrolabe compiled from the works of Naṣīr al-Dīn al-Ṭusī; in 20 bāb.Contents: 5. fol. 51b-53b: Ikhtiṣār mā yataʻallaqu bi-abwāb ʻamal al-layl wa-al-nahār bi-al-rubʻ al-mujayyab.Contents: 6. fol. 54b-61b: Risālah fī al-rubʻ al-mujayyab.Contents: 7. fol. 62b-67a: Bu risale amal-ı nücumu beyanindadir rub-i daire. Turkish treatise on the quadrant in 14 faṣl.Contents: 8. fol. 67b-77b: Işbu risale rub-i dair vaz edip cüzüsünün tarikindadir. Turkish treatise on the quadrant.Contents: 9. fol. 77b-81a: Risālah fī maʻrifat al-ʻamal bi-al-rubʻ al-muqanṭarāt.Contents: 10. fol. 81a-82a: Definitions of astronomical terms. In Arabic; followed by an extract on the astrolabe in Ottoman Turkish on fol. 82a.Contents: 11. fol. 84b-99b: Ahval-ı sahife-yi ceyb. Turkish treatise on the sine quadrant in 21 faṣl.Contents: 12. fol. 100b-131b: Risālat al-kurah.Contents: 13. fol. 132a-136a: Risālah fī al-kurah dhāt al-kursī.Ms. composite codex.
Collection of astronomical works by Naṣīr al-Dīn al-Ṭūsī, which include material on sunset and sunrise, the size of the earth, the moon, the distance to the moon, the distance between the sun and the planets, movement of the spheres, and eclipses. Some marginal notes in another hand, affected by trimming.
Collection of works on astronomy and astronomical instruments in Arabic and Ottoman Turkish copied in the same hand and bound together; the Turkish work (3) is missing the first leaf; f. 84v-98v are all excerpts from (naqala min) the same book with no attribution, Miṣbāḥ al-ẓalām.
Four treatises on astrolabes and astronomy, the first and fourth treatise are incomplete; the first treatise skips from chapter 22 to chapter 30 (f. 5-6) and the fourth treatise is missing some amount of the beginning, the first complete section is "taṣtīḥ dāʼirat al-ufuq" (f. 14r).
Text rubricated; many marginal and interlinear corrections and assorted doodlings in the hand of the copyist.[1] consists of at least 7 bābs, missing the beginning and end, and is on timekeeping by solar methods; [2] consists of 15 bābs, missing the beginning and the last page(s) of the khātimah, and is on timekeeping by night using the stars and the characteristics of the Byzantine and Coptic calendars. The item in hand seems to have been used for practice in copying.
Letter of one of the followers of Nathan b. Abraham, probably c. 1042. On verso there are astronomical calculations regarding the position of the moon.Layout: 52 lines (recto); 61 lines + marginalia (verso)
Recto: theological notes on the chances of miracles, the ban on idolatry and the wisdom of the Lord. Verso: astronomical notes on the zodiac, Coptic months and planets (mercury).Condition: tornLayout: 18 lines (recto); 12 lines (verso)