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Astronomical table which indicates the increase of the dâïr (فضل الدائر)
( فضل الدائر)

Title	Astronomical table which indicates the increase of the dâïr (فضل الدائر)
Title Original	فضل الدائر
Publication Date:	1601
Subject	Astronomy
Type	Other
Language	Arabic
Digital	Yes
Manuscript	No
Library:	University of La Laguna Library
Record ID	cdi_europeana_collections_9200519_ark_12148_btv1b53205384q
Date	1601
Notes	Scanning from an original document: Arabic 2552. The dâïr is the arc of the hourly circle which measures the elapsed part of the day, and the increase, or rather the excess (فضل), is the excess of the semi-diurnal arc over the dâïr. (See Delambre, History of astronomy of the Middle Ages, p. 111, 118, 187.) This table is calculated for each minute of the degree, up to 60°. Digitization carried out from an original document: Arabic 2552. The dâïr is the arc of the hourly circle which measures the elapsed part of the day, and the increase, or rather the excess (فضل), is the excess of the semi-diurnal arc over the dâïr. (See Delambre, History of astronomy of the Middle Ages, p. 111, 118, 187.) This table is calculated for each minute of the degree, up to 60°.

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University of La Laguna Library

Astronomical table which indicates the increase of the dâïr (فضل الدائر)

( فضل الدائر)

Publication Date 1601

Subject Astronomy

Type Other

Language Arabic

Digital Yes

Manuscript No

Library University of La Laguna Library

Record ID cdi_europeana_collections_9200519_ark_12148_btv1b53205384q

Date 1601

Notes Scanning from an original document: Arabic 2552. The dâïr is the arc of the hourly circle which measures the elapsed part of the day, and the increase, or rather the excess (فضل), is the excess of the semi-diurnal arc over the dâïr. (See Delambre, History of astronomy of the Middle Ages, p. 111, 118, 187.) This table is calculated for each minute of the degree, up to 60°. Digitization carried out from an original document: Arabic 2552. The dâïr is the arc of the hourly circle which measures the elapsed part of the day, and the increase, or rather the excess (فضل), is the excess of the semi-diurnal arc over the dâïr. (See Delambre, History of astronomy of the Middle Ages, p. 111, 118, 187.) This table is calculated for each minute of the degree, up to 60°.