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Astrolabes as Eclipse Computers: Four Early Arabic Texts on Construction and Use of the Ṣafīḥa Kusūfiyya
in Medieval EncountersSearch for other papers by Johannes Thomann in
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Abstract
The main topic of this article comprises four unpublished Arabic texts on astrolabe-like instruments for showing the conditions of eclipses. They are the earliest technical descriptions of eclipse computers in any language. The first text is a treatise by Ê¿AlÄ« ibn ʿĪsÄ (ninth century) on a special astrolabe for lunar phases and eclipses. The second text is an anonymous redaction of the first text with some omissions and additions. The third text describes a similar instrument with a different design, which was invented by Muḥammad ibn Muḥammad Nasá¹Å«lus al-Asá¹urlÄbÄ« in the year 893/894
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| Insgesamt | Letzte 365 Tage | In den letzten 30 Tagen | |
|---|---|---|---|
| Aufrufe von Kurzbeschreibungen | 1138 | 496 | 25 |
| Gesamttextansichten | 315 | 7 | 0 |
| PDF-Downloads | 124 | 23 | 0 |
Astrolabes as Eclipse Computers: Four Early Arabic Texts on Construction and Use of the Ṣafīḥa Kusūfiyya
in Medieval EncountersSearch for other papers by Johannes Thomann in
Current site
Google Scholar
PubMed
Abstract
The main topic of this article comprises four unpublished Arabic texts on astrolabe-like instruments for showing the conditions of eclipses. They are the earliest technical descriptions of eclipse computers in any language. The first text is a treatise by Ê¿AlÄ« ibn ʿĪsÄ (ninth century) on a special astrolabe for lunar phases and eclipses. The second text is an anonymous redaction of the first text with some omissions and additions. The third text describes a similar instrument with a different design, which was invented by Muḥammad ibn Muḥammad Nasá¹Å«lus al-Asá¹urlÄbÄ« in the year 893/894
| Insgesamt | Letzte 365 Tage | In den letzten 30 Tagen | |
|---|---|---|---|
| Aufrufe von Kurzbeschreibungen | 1138 | 496 | 25 |
| Gesamttextansichten | 315 | 7 | 0 |
| PDF-Downloads | 124 | 23 | 0 |
