File:Messier 94 - GALEX - WIKISKY.png
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Summary[edit]
DescriptionMessier 94 - GALEX - WIKISKY.png |
English: This image from NASA's Galaxy Evolution Explorer (GALEX) shows Messier 94, also known as NGC 4736, in ultraviolet light. It is located 17 million light-years away in the constellation Canes Venatici.
The spiral galaxy is punctuated by a distinct ring of stars at its center. The young stars glow with ultraviolet light and thus appear bright to the detectors of GALEX. Astronomers think the galaxy's oval shape may be the reason for this sharp ring of star formation. The ultraviolet light at the very center of the galaxy, within the ring, is likely produced by a combination of extremely old stars, about 10 billion years old. GALEX highlights the complex star formation history in the outer arms as well. There, the blue-white regions highlight areas of current star formation, and the diffuse faint red light is from regions where star formation ceased more than 100 million years ago. |
Date | (released) |
Source | http://www.wikisky.org/ http://server7.wikisky.org/snapshot?img_size=&img_res=&ra=12.848332999999997&de=41.11666499999999&angle=0.4&projection=tan&rotation=0.0&survey=GALEX&img_id=all&width=1200&height=1200&img_borders=&interpolation=bicubic&jpeg_quality=0.8&max_preview_size=800&show_params=1&mouse_action=move; see also https://photojournal.jpl.nasa.gov/catalog/PIA17245 |
Author | NASA/JPL-Caltech |
This image or video was catalogued by Jet Propulsion Laboratory of the United States National Aeronautics and Space Administration (NASA) under Photo ID: PIA17245. This tag does not indicate the copyright status of the attached work. A normal copyright tag is still required. See Commons:Licensing. Other languages:
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Public domainPublic domainfalsefalse |
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.) | ||
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current | 11:08, 19 May 2013 | 1,200 × 1,200 (2.78 MB) | Fabian RRRR (talk | contribs) | {{Information |Description ={{en|1=Messier 94 as seen in the ultraviolett soectrum, cutout from wikisky}} |Source =http://www.wikisky.org/ http://server7.wikisky.org/snapshot?img_size=&img_res=&ra=12.848332999999997&de=41.11666499999999&angl... |
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