File:Khalili Collection Islamic Art sci 0040.1.jpg

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Captions

English

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Summary

Object

Astrolabe-quadrant

Title

Astrolabe-quadrant

Object type

astrolabe quadrant

Description

English: One side of the instrument carries a Prophatius astrolabe-quadrant for latitude 41°, with an unequal hour diagram (horary quadrant) above. The other side is a sine-cosine quadrant with arcs of sine and versed sine. There are brief instructions in Turkish and Arabic on the sides and edges. ... See full description on web site.

Date

dated 1256 AH (1840-41 AD)

Medium

solid walnut, inscribed in red and black ink under a yellowish varnish; brass socket for the plumb-line; the lead weight for the plumb-line is housed in the instrument

Dimensions

width: 16.8 cm (6.6 in)

Collection

Khalili Collections

	Native name	The Khalili Collections
	Location	United Kingdom
	Coordinates	51° 30′ 39.83″ N, 0° 08′ 25.11″ W
	Website	www.khalilicollections.org
	Authority file	: Q63160499

Accession number

SCI 40 (Nasser D. Khalili Collection of Islamic Art)

Place of creation

Ottoman Turkey

References

https://www.khalilicollections.org/collections/islamic-art/khalili-collection-islamic-art-astrolabe-quadrant-sci40/ (English)

Photograph

Description	Astrolabe-quadrant
Source	Khalili Collections
Author	Khalili Collections
Other versions	cropped

Licensing

As part of its programme of cultural philanthropy, the Khalili Foundation has shared images from the eight Khalili Collections. These objects come from many different cultures and time periods, and some have a profound cultural and religious significance. Please use this material responsibly, showing respect to the cultures to which these objects are precious.

Media from the Khalili Collections uploaded by User:MartinPoulter (KC WIR) are released under CC-BY-SA 3.0 IGO.

This file is licensed under the Creative Commons Attribution-ShareAlike 3.0 IGO license.

Attribution: Khalili Collections / CC-BY-SA 3.0 IGO

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File history

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	Date/Time	Thumbnail	Dimensions	User	Comment
current	15:46, 29 July 2021		3,083 × 2,500 (373 KB)	MartinPoulter (KC WIR) (talk \| contribs)	pattypan 20.04

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File usage on Commons

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Usage on www.wikidata.org
- Q107663931

Metadata

This file contains additional information such as Exif metadata which may have been added by the digital camera, scanner, or software program used to create or digitize it. If the file has been modified from its original state, some details such as the timestamp may not fully reflect those of the original file. The timestamp is only as accurate as the clock in the camera, and it may be completely wrong.

Camera manufacturer	Canon
Camera model	Canon EOS 5D
Copyright holder	Images optimsied by Nocturnal Cloud on behalf of Oliver's Bakery 2018
Exposure time	1/40 sec (0.025)
F-number	f/13
ISO speed rating	100
Date and time of data generation	14:18, 20 February 2013
Lens focal length	100 mm
Width	3,552 px
Height	2,880 px
Bits per component	16 16 16
Compression scheme	Uncompressed
Pixel composition	RGB
Orientation	Normal
Number of components	3
Horizontal resolution	300 dpi
Vertical resolution	300 dpi
Data arrangement	chunky format
Software used	Adobe Photoshop CS6 (Macintosh)
File change date and time	16:48, 11 December 2018
Exposure Program	Manual
Exif version	2.21
Date and time of digitizing	14:18, 20 February 2013
APEX shutter speed	5.321928
APEX aperture	7.400879
APEX exposure bias	0
Maximum land aperture	3 APEX (f/2.83)
Metering mode	Pattern
Flash	Flash did not fire, compulsory flash suppression
Color space	Uncalibrated
Focal plane X resolution	3,086.925795053
Focal plane Y resolution	3,091.2951167728
Focal plane resolution unit	inches
Custom image processing	Normal process
Exposure mode	Manual exposure
White balance	Manual white balance
Scene capture type	Standard
Serial number of camera	1230804846
Lens used	EF100mm f/2.8 Macro
Rating (out of 5)	0
Date metadata was last modified	16:48, 11 December 2018
Unique ID of original document	0DB85DD07563BCF8E4C7D2AF7D592609
Copyright status	Copyrighted
IIM version	114