Kuva:NGC6543.jpg
Wikipedia
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;
- blue, neutral oxygen, 6300 angstroms;
- green, ionized nitrogen, 6584 angstroms.
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This file is in the public domain because it was created by NASA. NASA copyright policy states that "NASA material is not protected by copyright unless noted". (NASA copyright policy page or JPL Image Use Policy).
Warnings:
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This image is missing essential source information. The author and source of the file must be given, so that others can verify the copyright status. Unless the source is given, the image can be speedy deleted seven days after this template was added and the uploader was notified: (18 October 2006).
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