File:Cassegrain telescope-CnAM 1850-IMG 5443-gradient.jpg

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Summary

Object

James Short: Cassegrain telescope - CnAM 1850

Artist

James Short (1710–1768)
Description	British mathematician
Date of birth/death	21 June 1710	15 June 1768
Location of birth/death	Edinburgh	London
Authority file	: Q957681 VIAF: 50726614 ISNI: 0000000027087194 LCCN: n86847215 Oxford Dict.: 25459 GND: 1051532213 WorldCat

Title

Cassegrain telescope - CnAM 1850

Object type

Cassegrain reflecting telescope / heliometer

Date

18^th century

Medium

silver, wood, brass and glass

Dimensions

length: 73.2 cm (28.8 in)

; height: 44.5 cm (17.5 in)

; mass: 11.1 kg (24.5 lb)

Collection

Conservatoire national des Arts et Métiers

	Parent institution	HESAM University
	Location	Paris , France
	Coordinates	48° 52′ 01″ N, 2° 21′ 16″ E
	Established	10 October 1794
	Website	www.cnam.eu/site-en
	Authority file	: Q524289 VIAF: 151143134 ISNI: 000000012185090X ULAN: 500257276 LCCN: n50055168 GND: 1017182-4 WorldCat

Accession number

01850-0001- (Conservatoire national des Arts et Métiers)

References

Télescope de Cassegrain à héliomètre de Bouguer (French)

Photograph

Date

Taken on 27 May 2018, 14:33 (according to Exif data)

Source

Own work

Author

Rama

Permission
(Reusing this file)

I, the copyright holder of this work, hereby publish it under the following licenses:

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Attribution: Rama

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This file is licensed under the Creative Commons Attribution-Share Alike 2.0 France license.

Attribution: Rama

You are free:

to share – to copy, distribute and transmit the work
to remix – to adapt the work

Under the following conditions:

attribution – You must give appropriate credit, provide a link to the license, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use.
share alike – If you remix, transform, or build upon the material, you must distribute your contributions under the same or compatible license as the original.

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File history

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	Date/Time	Thumbnail	Dimensions	User	Comment
current	18:41, 30 May 2018		5,000 × 5,000 (2.66 MB)	Rama (talk \| contribs)	== {{int:filedesc}} == {{Object photo \|object = Cassegrain telescope-CnAM 1850 \|detail = \|description = \|source = {{own}} \|author = {{u\|Rama}} \|permission = {{self\|Cc-by-sa-3.0-fr\|Cc-by-sa-2.0-fr\|CeCILL\|attribution=Rama}} \|date = }} Category:Cassegrain telescope-CnAM 1850

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File usage on Commons

The following 12 pages use this file:

File usage on other wikis

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Usage on www.wikidata.org
- Q54508557

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 Mark II
Exposure time	1/40 sec (0.025)
F-number	f/5.6
ISO speed rating	1,600
Date and time of data generation	14:33, 27 May 2018
Lens focal length	105 mm
Orientation	Normal
Horizontal resolution	72 dpi
Vertical resolution	72 dpi
File change date and time	15:50, 29 May 2018
Y and C positioning	Co-sited
Exposure Program	Shutter priority
Exif version	2.21
Date and time of digitizing	14:33, 27 May 2018
Meaning of each component	Y Cb Cr does not exist
APEX shutter speed	5.375
APEX aperture	5
APEX exposure bias	−0.66666666666667
Metering mode	Pattern
Flash	Flash did not fire, compulsory flash suppression
DateTime subseconds	61
DateTimeOriginal subseconds	61
DateTimeDigitized subseconds	61
Supported Flashpix version	1
Color space	sRGB
Focal plane X resolution	3,849.2117888965
Focal plane Y resolution	3,908.1419624217
Focal plane resolution unit	inches
Custom image processing	Normal process
Exposure mode	Auto exposure
White balance	Auto white balance
Scene capture type	Standard
GPS tag version	0.0.2.2
Image width	5,616 px
Image height	3,744 px

Structured data

File:Cassegrain telescope-CnAM 1850-IMG 5443-gradient.jpg

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