File:A2142 - Optical Image (2000-a2142-more-1).jpg

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A2142 - Optical Image The two large elliptical galaxies indicated by arrows in the center of image are aligned in the general direction of the X-ray brightness elongation.

Summary

Description	English: A2142 - Optical Image The two large elliptical galaxies indicated by arrows in the center of image are aligned in the general direction of the X-ray brightness elongation. They are thought to be the central galaxies of two sub-clusters that are participating in the merger.
Date	1 March 2000 (upload date)
Source	A2142 - Optical Image
Author	(Credit: Palomar Digitized Sky Survey)

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	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."

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	Date/Time	Thumbnail	Dimensions	User	Comment
current	21:37, 14 June 2024		594 × 594 (191 KB)	OptimusPrimeBot (talk \| contribs)	#Spacemedia - Upload of https://chandra.si.edu/photo/2000/a2142/a2142_optical.jpg via Commons:Spacemedia

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Image title	This image made by NASA's Chandra X-ray Observatory shows the merger of two sub-clusters of galaxies. The sub-clusters are embedded within Abell 2142, a gigantic galaxy cluster that is one of the most massive objects in the universe. The smoothness of the elongated cloud in the Chandra image suggests that these sub-clusters have collided two or three times in a billion years or more, and have nearly completed their merger. The bright source in the upper left is an active galaxy in the cluster.
Author	Chandra X-ray Observatory Center
Copyright holder	A cluster of galaxies in the constellation Corona Borealis.
Headline	A cluster of galaxies in the constellation Corona Borealis.
Credit/Provider	NASA/CXC/SAO
Source	Chandra X-ray Observatory
Short title	Chandra Maps Cosmic Pressure Fronts
Usage terms	http://chandra.harvard.edu/photo/image_use.html
Date and time of data generation	1 March 2000
Orientation	Normal
Horizontal resolution	72 dpi
Vertical resolution	72 dpi
Color space	sRGB
Image height	594 px
Image width	594 px
Exif version	2.21
Width	594 px
Height	594 px
Pixel composition	RGB
Number of components	3
Bits per component	8 8 8
Date metadata was last modified	11:04, 9 February 2011
Date and time of digitizing	13:10, 12 October 2007
Keywords	Abell 2142
Contact information	cxcpub@cfa.harvard.edu http://chandra.harvard.edu 60 Garden St. Cambridge, MA, 02138 USA 617.496.7941
IIM version	2

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File:A2142 - Optical Image (2000-a2142-more-1).jpg

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public domain

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high Earth orbit

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image/jpeg

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594 pixel

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satellite imagery

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photograph

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195,986 byte

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07c16346ba992bc6e38864dffadeb49ab664879d

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1 March 2000

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file available on the internet

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4izyrgs7d3e1xj8kyssztu81toumlyjr23mxltwaa2bdvo2zsc

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