Aja viide. Aja lugu.

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Summary

Description

English: 1/6th scale model of the James Webb Space Telescope primary mirror. See https://www.nasa.gov/sites/default/files/atoms/files/spring_2007.pdf, page 3.

Date

9 November 2005, 15:23

Source

James Webb Space Telescope

Author

NASA/Chris Gunn

Chris Gunn

	Description	American photographer
	Authority file	: Q110278636

Licensing

This file is licensed under the Creative Commons Attribution 2.0 Generic license.

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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.

This image was originally posted to Flickr by NASA Goddard Photo and Video at https://flickr.com/photos/24662369@N07/4370444559 (archive). It was reviewed on 12 May 2018 by FlickreviewR 2 and was confirmed to be licensed under the terms of the cc-by-2.0.

12 May 2018

	This file is in the public domain in the United States because it was solely created by NASA. NASA copyright policy states that "NASA material is not protected by copyright unless noted". (See Template:PD-USGov, NASA copyright policy page or JPL Image Use Policy.)
	Warnings: Use of NASA logos, insignia and emblems is restricted per U.S. law 14 CFR 1221. The NASA website hosts a large number of images from the Soviet/Russian space agency, and other non-American space agencies. These are not necessarily in the public domain. Materials based on Hubble Space Telescope data may be copyrighted if they are not explicitly produced by the STScI.[1] See also {{PD-Hubble}} and {{Cc-Hubble}}. The SOHO (ESA & NASA) joint project implies that all materials created by its probe are copyrighted and require permission for commercial non-educational use. [2] Images featured on the Astronomy Picture of the Day (APOD) web site may be copyrighted. [3] The National Space Science Data Center (NSSDC) site has been known to host copyrighted content. Its photo gallery FAQ states that all of the images in the photo gallery are in the public domain "Unless otherwise noted."

File history

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	Date/Time	Thumbnail	Dimensions	User	Comment
current	01:23, 12 May 2018		3,000 × 1,950 (1.02 MB)	OceanAtoll	Transferred from Flickr via #flickr2commons

File usage

The following page uses this file:

Optical Telescope Element

Global file usage

The following other wikis use this file:

Usage on eo.wikipedia.org
- Kosmoteleskopo James Webb
Usage on fa.wikipedia.org
- عنصر تلسکوپ نوری
Usage on fr.wikipedia.org
- James Webb (télescope spatial)

Metadata

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Camera manufacturer	NIKON CORPORATION
Camera model	NIKON D1X
Exposure time	1/250 sec (0.004)
F-number	f/7.1
Date and time of data generation	15:23, 9 November 2005
Lens focal length	14 mm
Image title	When the James Webb Space Telescope (JWST) reachesits orbit about a million miles (1.5 kilometers) fromEarth and begins studying the distant reaches of theuniverse, the event will mark an unprecedented triumphon several technological fronts.Aside from its 21.3-foot (6.5-meter) primary mirror —the largest and lightest ever flown — JWST will fly adeployable multi-layer sunshade. This tennis court -sized structure will block sunlight and prevent the coldsection of the observatory from exceeding -375° F(-233.3°C) — the temperature needed to detect faintinfrared light from distant astronomical objects andreveal more about the formation of planetarysystems.The microshutters used on the observatory’s NearInfrared Spectrograph also represent another technologicalbreakthrough. They, too, achieved a technologyreadiness level rating of six following an importantdemonstration test earlier this year. Originally conceivedwith Goddard R&D funding, the microshutter arrayconsists of 62,415 tiny shutters arranged in a waffle-like silicon grid. Through the application of a magneticforce, these shutters — each about the width of ahuman hair — open or close to allow or preventstarlight from entering the spectrograph. This way,astronomers can gather light from only those objectsthey want to study.JWST also is flying a super-cold mechanical cyrocoolerto keep instruments cool and state-of- the- art infrareddetectors.Photo Credit: Chris GunnSpring 2007
Source	Goddard Space Flight Center
City shown	Greenbelt
Width	3,000 px
Height	1,950 px
Bits per component	8 8 8
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 CS2 Windows
File change date and time	08:51, 4 April 2006
Exposure Program	Manual
Exif version	2.2
Date and time of digitizing	15:23, 9 November 2005
Meaning of each component	Y Cb Cr does not exist
Image compression mode	4
Exposure bias	0
Maximum land aperture	3 APEX (f/2.83)
Metering mode	Spot
Light source	Flash
Flash	Flash fired, strobe return light not detected
DateTime subseconds	64
DateTimeOriginal subseconds	64
DateTimeDigitized subseconds	64
Supported Flashpix version	1
Color space	sRGB
Sensing method	One-chip color area sensor
File source	Digital still camera
Scene type	A directly photographed image
Custom image processing	Normal process
Exposure mode	Manual exposure
White balance	Manual white balance
Digital zoom ratio	1
Focal length in 35 mm film	21 mm
Scene capture type	Standard
Scene control	None
Contrast	Normal
Saturation	Normal
Sharpness	Soft
Subject distance range	Unknown
GPS tag version	2.2.0.0
Supported Flashpix version	1
Image width	3,000 px
Image height	1,950 px
Y and C positioning	Co-sited
Date metadata was last modified	02:51, 4 April 2006
Keywords	Goddard Space Flight Center GSFC NASA Greenbelt, MD Portraits Goddard Tech Trends Technology Space
Province or state shown	MD
Country shown	USA
IIM version	4

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Summary

Licensing

Captions

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creator

some value

published in

Flickr

copyright status

copyrighted

copyright license

Creative Commons Attribution 2.0 Generic

captured with

Nikon D1X

inception

9 November 2005

exposure time

0.004 second

f-number

7.1

focal length

14 millimetre

media type

image/jpeg

source of file

file available on the internet

‎Flickr photo ID

File history

File usage

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Metadata