File:Six of the 18 James Webb Space Telescope mirror segments.jpg

Size of this preview: 800 × 597 pixels. Other resolutions: 320 × 239 pixels | 640 × 478 pixels | 1,024 × 765 pixels | 1,280 × 956 pixels | 2,100 × 1,568 pixels.

Original file ‎(2,100 × 1,568 pixels, file size: 2.37 MB, MIME type: image/jpeg)

This is a file from the Wikimedia Commons. Information from its description page there is shown below.
Commons is a freely licensed media file repository. You can help.

Summary

Description	English: Six of the 18 James Webb Space Telescope mirror segments are being prepped to move into the X-ray and Cryogenic Facility, or XRCF, at NASA's Marshall Space Flight Center in Huntsville, Ala., to eventually experience temperatures dipping to a chilling -414 degrees Fahrenheit to ensure they can withstand the extreme space environment. The test chamber takes approximately five days to cool a mirror segment to cryogenic temperatures. Marshall's X-ray & Cryogenic Facility is the world's largest X-ray telescope test facility and a unique, cryogenic, clean room optical test location.
Date	7 January 0010
Source	http://www.nasa.gov/centers/goddard/news/topstory/2010/10-003.html
Author	NASA/MSFC/Emmett Givens

Licensing

	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

Click on a date/time to view the file as it appeared at that time.

	Date/Time	Thumbnail	Dimensions	User	Comment
current	18:04, 8 January 2010		2,100 × 1,568 (2.37 MB)	KGyST	{{Information \|Description={{en\|1=Six of the 18 James Webb Space Telescope mirror segments are being prepped to move into the X-ray and Cryogenic Facility, or XRCF, at NASA's Marshall Space Flight Center in Huntsville, Ala., to eventually experience tempe

File usage

The following pages on the English Wikipedia use this file (pages on other projects are not listed):

First-surface mirror

Global file usage

The following other wikis use this file:

Usage on pt.wikipedia.org
- Espelho de primeira superfície
Usage on ru.wikipedia.org
- Участник:Eligatron/Иллюстрации для статей о космонавтике 5

Metadata

This file contains additional information, probably added from the digital camera or scanner used to create or digitize it.

If the file has been modified from its original state, some details may not fully reflect the modified file.

Camera manufacturer	NIKON CORPORATION
Camera model	NIKON D300
Exposure time	1/30 sec (0.033333333333333)
F-number	f/6.3
ISO speed rating	800
Date and time of data generation	17:07, 8 December 2007
Lens focal length	20 mm
Orientation	Normal
Horizontal resolution	300 dpi
Vertical resolution	300 dpi
Software used	Adobe Photoshop CS4 Windows
File change date and time	10:23, 7 January 2010
Exposure Program	Manual
Exif version	2.21
Date and time of digitizing	17:07, 8 December 2007
Shutter speed	4.906891
APEX aperture	5.310704
Exposure bias	0
Maximum land aperture	3.7 APEX (f/3.61)
Metering mode	Pattern
Light source	Unknown
Flash	Flash fired, strobe return light detected, compulsory flash firing
DateTimeOriginal subseconds	83
DateTimeDigitized subseconds	83
Color space	Uncalibrated
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	Auto white balance
Digital zoom ratio	1
Focal length in 35 mm film	30 mm
Scene capture type	Standard
Scene control	Low gain up
Contrast	Normal
Saturation	Normal
Sharpness	Normal
Subject distance range	Unknown
Width	4,288 px
Height	2,848 px
Image width	2,100 px
Image height	1,568 px
Serial number of camera	3138498
Lens used	18.0-200.0 mm f/3.5-5.6
Date metadata was last modified	04:23, 7 January 2010
Unique ID of original document	xmp.did:343B2CABF0FADE11AF9FC1E25973AC78