File:PIA21088 - Supernova SN 2014C (Optical and X-Ray).jpg

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Summary

Description	Unannotated Version English: This visible-light image from the Sloan Digital Sky Survey shows spiral galaxy NGC 7331, center, where astronomers observed the unusual supernova SN 2014C . The inset images are from NASA's Chandra X-ray Observatory, showing a small region of the galaxy before the supernova explosion (left) and after it (right). Red, green and blue colors are used for low, medium and high-energy X-rays, respectively. A version of this image without annotations is also available above. See PIA21089 for a related image. For more Chandra images, multimedia and related materials, visit:http://www.nasa.gov/chandra.
Date	24 January 2017 (published)
Source	Catalog page · Full-res (JPEG · TIFF)
Author	X-ray images: NASA/CXC/CIERA/R.Margutti et al; Optical image: SDSS

This image or video was catalogued by Jet Propulsion Laboratory of the United States National Aeronautics and Space Administration (NASA) under Photo ID: PIA21088.

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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

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	Date/Time	Thumbnail	Dimensions	User	Comment
current	15:45, 25 January 2017		864 × 864 (81 KB)	PhilipTerryGraham	User created page with UploadWizard

File usage

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NGC 7331

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- NGC 7331
Usage on zh.wikipedia.org
- NGC 7331