Mynd:Helix Nebula.jpg
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Lýsing
| Lýsing |
English: This colour-composite image of the Helix Nebula (NGC 7293) was created from images obtained using the the Wide Field Imager (WFI), an astronomical camera attached to the 2.2-metre Max-Planck Society/ESO telescope at the La Silla observatory in Chile. The blue-green glow in the centre of the Helix comes from oxygen atoms shining under effects of the intense ultraviolet radiation of the 120 000 degree Celsius central star and the hot gas. Further out from the star and beyond the ring of knots, the red colour from hydrogen and nitrogen is more prominent. A careful look at the central part of this object reveals not only the knots, but also many remote galaxies seen right through the thinly spread glowing gas.
This image was created from images through blue, green and red filters and the total exposure times were 12 minutes, 9 minutes and 7 minutes respectively. |
| Dagsetning | (released) |
| Uppruni | http://www.eso.org/public/images/eso0907a/ |
| Höfundarréttarhafi | European Southern Observatory |
Leyfisupplýsingar:
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This media was created by the European Southern Observatory (ESO).
Their website states: "Unless specifically noted, the images, videos, and music distributed on the public ESO website, along with the texts of press releases, announcements, pictures of the week, blog posts and captions, are licensed under a Creative Commons Attribution 4.0 International License, and may on a non-exclusive basis be reproduced without fee provided the credit is clear and visible." To the uploader: You must provide a link (URL) to the original file and the authorship information if available. |
  This file is licensed under the Creative Commons Attribution 4.0 International license.
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| Dagsetning/Tími | Smámynd | Víddir | Notandi | Athugasemd | |
|---|---|---|---|---|---|
| núverandi | 29. september 2012 kl. 10:46 | | 7.059 × 6.535 (14,11 MB) | Stas1995 | User created page with UploadWizard |
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