File:Abell21 - Noaoann09008a.jpg
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[edit]DescriptionAbell21 - Noaoann09008a.jpg |
English: Medusa nebula, Abell 21
The Medusa nebula, known scientifically as Abell 21, is an old planetary nebula some 1,500 light-years away in the constellation Gemini. It is estimated to be over 4 light-years across. This image was taken on Oct 24th, 2008 at the Mayall telescope with the mosaic camera, with [OIII] (assigned a blue color) and H-alpha (orange) filters This image was released during the 100 Hours of Astronomy webcast, "Around the World in 80 Telescopes" held from April 3-4, 2009, during the International Year of Astronomy 2009. View the recorded event from KPNO. See also this image of NGC 6520 from CTIO, which was also released during the webcast. Credit: T. A. Rector/University of Alaska Anchorage and H. Schweiker/NOIRLab/NSF/AURA and NOIRLab/NSF/AURA |
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Date | April 21, 2009 | ||||
Source | https://noirlab.edu/public/images/noaoann09008a/ | ||||
Author |
Credit: T. A. Rector/University of Alaska Anchorage and H. Schweiker/NOIRLab/NSF/AURA and NOIRLab/NSF/AURA |
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Date/Time | Thumbnail | Dimensions | User | Comment | |
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current | 19:34, 22 November 2021 | 8,333 × 8,304 (33.01 MB) | Fabian RRRR (talk | contribs) | == {{int:filedesc}} == {{Information |description={{en|1='''Medusa nebula, Abell 21 The Medusa nebula, known scientifically as Abell 21, is an old planetary nebula some 1,500 light-years away in the constellation Gemini. It is estimated to be over 4 light-years across. This image was taken on Oct 24th, 2008 at the Mayall telescope with the mosaic camera, with [OIII] (assigned a blue color) and H-alpha (orange) filters This image was released during the 100 Hours of Astronomy webcast, "Aroun... |
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- File:Medusa nebula, Abell 21 (noaoann09008a).tiff
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- Category:Medusa Nebula
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Image title |
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Credit/Provider | T. A. Rector/University of Alaska Anchorage and H. Schweiker/NOIRLab/NSF/AURA and NOIRLab/NSF/AURA |
Source | NSF's NOIRLab |
Short title |
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Usage terms |
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Date and time of data generation | 00:00, 21 April 2009 |
Software used | Adobe Photoshop CS3 Macintosh |
File change date and time | 11:02, 6 April 2009 |
Date and time of digitizing | 04:02, 6 April 2009 |
Date metadata was last modified | 04:02, 6 April 2009 |
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Contact information |
950 North Cherry Ave. Tucson, AZ, 85719 USA |
IIM version | 4 |