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English: X-ray/optical composite image of NGC 6543, the Cat's Eye Nebula (X-ray: NASA/UIUC/Y.Chu et al., Optical: NASA/HST).

Optical image: Wide Field Planetary Camera-2, composite image of three images taken at different wavelengths:

  • red, hydrogen-alpha, 656.28 nm;
  • blue, neutral oxygen, 630 nm;
  • green, ionized nitrogen, 658.4 nm.
Source HST's Greatest Hits
Author J.P. Harrington and K.J. Borkowski (University of Maryland), and NASA


Public domain This file is in the public domain because it was created by NASA and ESA. NASA Hubble material (and ESA Hubble material prior to 2009) is copyright-free and may be freely used as in the public domain without fee, on the condition that only NASA, STScI, and/or ESA is credited as the source of the material. This license does not apply if ESA material created after 2008 or source material from other organizations is in use.
The material was created for NASA by Space Telescope Science Institute under Contract NAS5-26555, or for ESA by the Hubble European Space Agency Information Centre. Copyright statement at or 2008 copyright statement at
For material created by the European Space Agency on the site since 2009, use the {{ESA-Hubble}} tag.
Hubble 01.jpg

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Derivative works of this file: EvolutionSystèmeSolaire-fragment1.png

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current08:12, 1 March 2017Thumbnail for version as of 08:12, 1 March 20172,100 × 2,100 (150 KB)The NMI User (talk | contribs)Image source from
03:20, 1 January 2005Thumbnail for version as of 03:20, 1 January 2005800 × 874 (64 KB)RuM (talk | contribs)Cat's Eye Nebula
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