Skip to item: of 428
Information about this record Back to top
Open in Universal viewer
Open in Mirador IIIF viewer

Anonymous treatise on the linear astrolabe [‎7v] (11/11)

This item is part of

The record is made up of Ff. 2v-7v. It was created in 1198. It was written in Arabic. The original is part of the British Library: Oriental Manuscripts.

About this item

Content

Anonymous treatise on the construction and use of the linear astrolabe Ancient instrument for astronomical observations. (أسطرلاب خطّي), an instrument also known as 'al-Ṭūsī's Rod' (عصا الطوسي), named after its inventor Sharaf al-Dīn al-Muẓaffar ibn Muḥammad al-Ṭūsī (شرف الدين المظفر بن محمد الطوسي; d. 1213).

The Persian table of contents (f. 1r) calls the treatise Risālah-ye dar ‘amal-i asṭurlāb khaṭṭī az khavājah Naṣīr (رساله در عمل اسطرلاب خطي از نصير), mistakenly attributing the text to the later astronomer and mathematician Naṣīr al-Dīn Muḥammad ibn Muḥammad al-Ṭūsī (نصير الدين محمد بن محمد الطوسي; d. 1274).

The comprehensive guide to practical astronomy and astronomical instruments J āmiʿ al-mabādiʾ wa-al-ghāyāt fī ʿilm al-mīqāt by Sharaf al-Dīn Abū ‘Alī al-Ḥasan ibn ‘Alī ibn ʿUmar al-Marrākushī (fl. second half of the 13th century) devotes two chapters to the linear astrolabe Ancient instrument for astronomical observations. (ed. Carra de Vaux, 'L' astrolabe Ancient instrument for astronomical observations. linéaire ou bâton d'al-Tousi', Journal asiatique [1895]). The treatise preserved in this manuscript is very similar to, but not identical with al-Marrākushī's discussion of this instrument.

A collation note at the end of this text (f. 7v) is dated 14 Shawwāl 1198/31 August 1784

Contents:

Begins (f. 2v, ll. 1-2):

الأوّل في تسمية أجزائها خط الأصل هو المقسوم بمائة وخمسين قسمًا والنقط السود

التي عليها تقوم مقام أجزاء دائرة متعدل النهار ...

Ends (f. 7v, ll. 9-10):

فما كان فانقصه من قوس نهار نظير درجة الشمس فما بقي فهو زمان ما بين طلوع الفجر

وطلوع الشمس

Extent and format
Ff. 2v-7v
Written in
Arabic in Arabic script
View the complete information for this record

Use and share this item

Share this item
Cite this item in your research

Anonymous treatise on the linear astrolabe [‎7v] (11/11), British Library: Oriental Manuscripts, IO Islamic 461, ff 2v-7v, in Qatar Digital Library <https://www.qdl.qa/archive/81055/vdc_100044790015.0x000018> [accessed 28 March 2024]

Link to this item
Embed this item

Copy and paste the code below into your web page where you would like to embed the image.

<meta charset="utf-8"><a href="https://www.qdl.qa/en/archive/81055/vdc_100044790015.0x000018">Anonymous treatise on the linear astrolabe [&lrm;7v] (11/11)</a>
<a href="https://www.qdl.qa/en/archive/81055/vdc_100044790015.0x000018">
	<img src="https://iiif.qdl.qa/iiif/images/81055/vdc_100023676611.0x000001/IO Islamic 461_0023.jp2/full/!280,240/0/default.jpg" alt="" />
</a>
IIIF details

This record has a IIIF manifest available as follows. If you have a compatible viewer you can drag the icon to load it.https://www.qdl.qa/en/iiif/81055/vdc_100023676611.0x000001/manifestOpen in Universal viewerOpen in Mirador viewerMore options for embedding images

Use and reuse
Download this image